Potential fix

Test parsing of Liquid code in comments
2026-09-13 07:50:43 -07:00 · 2021-11-30 14:10:34 -05:00 · 2021-11-30 11:56:49 -05:00
98 changed files with 1493 additions and 3268 deletions
@@ -0,0 +1,2 @@
+enabled:
+  - cla
@@ -1,22 +0,0 @@
-name: Contributor License Agreement (CLA)
-
-on:
-  pull_request_target:
-    types: [opened, synchronize]
-  issue_comment:
-    types: [created]
-
-jobs:
-  cla:
-    runs-on: ubuntu-latest
-    if: |
-      (github.event.issue.pull_request 
-        && !github.event.issue.pull_request.merged_at
-        && contains(github.event.comment.body, 'signed')
-      ) 
-      || (github.event.pull_request && !github.event.pull_request.merged)
-    steps:
-      - uses: Shopify/shopify-cla-action@v1
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          cla-token: ${{ secrets.CLA_TOKEN }}
@@ -1,35 +1,39 @@
 name: Liquid
 on: [push, pull_request]
-
-env:
-  BUNDLE_JOBS: 4
-  BUNDLE_RETRY: 3
-
 jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        entry:
-          - { ruby: 2.7, allowed-failure: false } # minimum supported
-          - { ruby: 3.2, allowed-failure: false } # latest
+          - { ruby: 2.5, allowed-failure: false } # minimum supported
+          - { ruby: 3.0, allowed-failure: false } # latest
          - { ruby: ruby-head, allowed-failure: true }
-    name: Test Ruby ${{ matrix.entry.ruby }}
+    name: test (${{ matrix.entry.ruby }})
    steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v2
      - uses: ruby/setup-ruby@v1
        with:
          ruby-version: ${{ matrix.entry.ruby }}
-          bundler-cache: true
+      - uses: actions/cache@v1
+        with:
+          path: vendor/bundle
+          key: ${{ runner.os }}-gems-${{ hashFiles('Gemfile') }}
+          restore-keys: ${{ runner.os }}-gems-
+      - run: bundle install --jobs=3 --retry=3 --path=vendor/bundle
      - run: bundle exec rake
        continue-on-error: ${{ matrix.entry.allowed-failure }}
-
  memory_profile:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v2
      - uses: ruby/setup-ruby@v1
        with:
          ruby-version: 2.7
-          bundler-cache: true
+      - uses: actions/cache@v1
+        with:
+          path: vendor/bundle
+          key: ${{ runner.os }}-gems-${{ hashFiles('Gemfile') }}
+          restore-keys: ${{ runner.os }}-gems-
+      - run: bundle install --jobs=3 --retry=3 --path=vendor/bundle
      - run: bundle exec rake memory_profile:run
@@ -10,9 +10,8 @@ Performance:
  Enabled: true

 AllCops:
-  TargetRubyVersion: 2.7
+  TargetRubyVersion: 2.5
  NewCops: disable
-  SuggestExtensions: false
  Exclude:
    - 'vendor/bundle/**/*'

@@ -20,10 +19,6 @@ Naming/MethodName:
  Exclude:
    - 'example/server/liquid_servlet.rb'

-Style/ClassMethodsDefinitions:
-  Enabled: false
-
-# liquid filter calls were being mistaken to be calls on arrays
-Style/ConcatArrayLiterals:
-  Exclude:
-    - 'test/integration/standard_filter_test.rb'
+# Backport https://github.com/Shopify/ruby-style-guide/pull/258
+Layout/BeginEndAlignment:
+  Enabled: true
@@ -1,74 +1,27 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2022-05-18 19:25:47 UTC using RuboCop version 1.29.1.
+# on 2020-12-11 18:53:41 UTC using RuboCop version 1.6.1.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.

-# Offense count: 1
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: TreatCommentsAsGroupSeparators, ConsiderPunctuation, Include.
-# Include: **/*.gemspec
-Gemspec/OrderedDependencies:
+# Offense count: 2
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle.
+# SupportedStyles: runtime_error, standard_error
+Lint/InheritException:
  Exclude:
-    - 'liquid.gemspec'
+    - 'lib/liquid/interrupts.rb'

-# Offense count: 6
-# This cop supports safe auto-correction (--auto-correct).
-Layout/ClosingHeredocIndentation:
-  Exclude:
-    - 'test/integration/tags/for_tag_test.rb'
-
-# Offense count: 34
-# This cop supports safe auto-correction (--auto-correct).
-Layout/EmptyLineAfterGuardClause:
-  Exclude:
-    - 'lib/liquid/block.rb'
-    - 'lib/liquid/block_body.rb'
-    - 'lib/liquid/context.rb'
-    - 'lib/liquid/drop.rb'
-    - 'lib/liquid/lexer.rb'
-    - 'lib/liquid/parser.rb'
-    - 'lib/liquid/profiler/hooks.rb'
-    - 'lib/liquid/standardfilters.rb'
-    - 'lib/liquid/tags/for.rb'
-    - 'lib/liquid/tags/if.rb'
-    - 'lib/liquid/utils.rb'
-    - 'lib/liquid/variable.rb'
-    - 'lib/liquid/variable_lookup.rb'
-    - 'performance/shopify/money_filter.rb'
-    - 'performance/shopify/paginate.rb'
+# Offense count: 113
+# Cop supports --auto-correct.
+# Configuration parameters: AutoCorrect, AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
+# URISchemes: http, https
+Layout/LineLength:
+  Max: 260

 # Offense count: 8
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: AllowAliasSyntax, AllowedMethods.
-# AllowedMethods: alias_method, public, protected, private
-Layout/EmptyLinesAroundAttributeAccessor:
-  Exclude:
-    - 'lib/liquid/template.rb'
-    - 'test/integration/filter_test.rb'
-    - 'test/integration/tags/include_tag_test.rb'
-    - 'test/unit/strainer_template_unit_test.rb'
-
-# Offense count: 17
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, IndentationWidth.
-# SupportedStyles: aligned, indented
-Layout/LineEndStringConcatenationIndentation:
-  Exclude:
-    - 'test/integration/tags/for_tag_test.rb'
-    - 'test/integration/tags/increment_tag_test.rb'
-
-# Offense count: 1
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, IndentationWidth.
-# SupportedStyles: aligned, indented
-Layout/MultilineOperationIndentation:
-  Exclude:
-    - 'lib/liquid/expression.rb'
-
-# Offense count: 9
 Lint/MissingSuper:
  Exclude:
    - 'lib/liquid/forloop_drop.rb'
@@ -80,7 +33,7 @@ Lint/MissingSuper:
    - 'test/integration/tags/for_tag_test.rb'
    - 'test/integration/tags/table_row_test.rb'

-# Offense count: 44
+# Offense count: 43
 Naming/ConstantName:
  Exclude:
    - 'lib/liquid.rb'
@@ -98,83 +51,7 @@ Naming/ConstantName:
    - 'performance/shopify/paginate.rb'
    - 'test/integration/tags/include_tag_test.rb'

-# Offense count: 9
-# Configuration parameters: CheckIdentifiers, CheckConstants, CheckVariables, CheckStrings, CheckSymbols, CheckComments, CheckFilepaths, FlaggedTerms.
-Naming/InclusiveLanguage:
-  Exclude:
-    - 'lib/liquid/drop.rb'
-    - 'lib/liquid/parse_context.rb'
-    - 'test/integration/drop_test.rb'
-    - 'test/integration/tags/if_else_tag_test.rb'
-
 # Offense count: 2
 Style/ClassVars:
  Exclude:
    - 'lib/liquid/condition.rb'
-
-# Offense count: 3
-# This cop supports safe auto-correction (--auto-correct).
-Style/ExplicitBlockArgument:
-  Exclude:
-    - 'test/integration/context_test.rb'
-    - 'test/integration/tag/disableable_test.rb'
-    - 'test/integration/tags/for_tag_test.rb'
-
-# Offense count: 2982
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, ConsistentQuotesInMultiline.
-# SupportedStyles: single_quotes, double_quotes
-Style/StringLiterals:
-  Enabled: false
-
-# Offense count: 20
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: single_quotes, double_quotes
-Style/StringLiteralsInInterpolation:
-  Exclude:
-    - 'lib/liquid/condition.rb'
-    - 'lib/liquid/strainer_template.rb'
-    - 'lib/liquid/tag/disableable.rb'
-    - 'performance/shopify/shop_filter.rb'
-    - 'performance/shopify/tag_filter.rb'
-
-# Offense count: 6
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyleForMultiline.
-# SupportedStylesForMultiline: comma, consistent_comma, no_comma
-Style/TrailingCommaInArrayLiteral:
-  Exclude:
-    - 'example/server/example_servlet.rb'
-    - 'lib/liquid/condition.rb'
-    - 'test/integration/context_test.rb'
-    - 'test/integration/standard_filter_test.rb'
-    - 'test/unit/parse_tree_visitor_test.rb'
-
-# Offense count: 1
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyleForMultiline.
-# SupportedStylesForMultiline: comma, consistent_comma, no_comma
-Style/TrailingCommaInHashLiteral:
-  Exclude:
-    - 'lib/liquid/expression.rb'
-
-# Offense count: 19
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, MinSize, WordRegex.
-# SupportedStyles: percent, brackets
-Style/WordArray:
-  Exclude:
-    - 'lib/liquid/tags/if.rb'
-    - 'liquid.gemspec'
-    - 'test/integration/assign_test.rb'
-    - 'test/integration/context_test.rb'
-    - 'test/integration/drop_test.rb'
-    - 'test/integration/standard_filter_test.rb'
-
-# Offense count: 117
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, AllowedPatterns, IgnoredPatterns.
-# URISchemes: http, https
-Layout/LineLength:
-  Max: 260
@@ -18,8 +18,8 @@ group :benchmark, :test do
 end

 group :test do
-  gem 'rubocop', '~> 1.44.0'
-  gem 'rubocop-shopify', '~> 2.12.0', require: false
+  gem 'rubocop', '~> 1.4', require: false
+  gem 'rubocop-shopify', '~> 1.0.7', require: false
  gem 'rubocop-performance', require: false

  platform :mri, :truffleruby do
@@ -1,40 +1,5 @@
 # Liquid Change Log

-## 5.4.0 2022-07-29
-
-### Breaking Changes
-* Drop support for end-of-life Ruby versions (2.5 and 2.6) (#1578) [Andy Waite]
-
-### Features
-* Allow `#` to be used as an inline comment tag (#1498) [CP Clermont]
-
-### Fixes
-* `PartialCache` now shares snippet cache with subcontexts by default (#1553) [Chris AtLee]
-* Hash registers no longer leak into subcontexts as static registers (#1564) [Chris AtLee]
-* Fix `ParseTreeVisitor` for `with` variable expressions in `Render` tag (#1596) [CP Clermont]
-
-### Changed
-* Liquid::Context#registers now always returns a Liquid::Registers object, though supports the most used Hash functions for compatibility (#1553)
-
-## 5.3.0 2022-03-22
-
-### Fixes
-* StandardFilter: Fix missing @context on iterations (#1525) [Thierry Joyal]
-* Fix warning about block and default value in `static_registers.rb` (#1531) [Peter Zhu]
-
-### Deprecation
-* Condition#evaluate to require mandatory context argument in Liquid 6.0.0 (#1527) [Thierry Joyal]
-
-## 5.2.0 2022-03-01
-
-### Features
-* Add `remove_last`, and `replace_last` filters (#1422) [Anders Hagbard]
-* Eagerly cache global filters (#1524) [Jean Boussier]
-
-### Fixes
-* Fix some internal errors in filters from invalid input (#1476) [Dylan Thacker-Smith]
-* Allow dash in filter kwarg name for consistency with Liquid::C (#1518) [CP Clermont]
-
 ## 5.1.0 / 2021-09-09

 ### Features
@@ -5,7 +5,7 @@

 * [Contributing guidelines](CONTRIBUTING.md)
 * [Version history](History.md)
-* [Liquid documentation from Shopify](https://shopify.dev/docs/api/liquid)
+* [Liquid documentation from Shopify](http://docs.shopify.com/themes/liquid-basics)
 * [Liquid Wiki at GitHub](https://github.com/Shopify/liquid/wiki)
 * [Website](http://liquidmarkup.org/)

@@ -56,20 +56,20 @@ For standard use you can just pass it the content of a file and call render with

 Setting the error mode of Liquid lets you specify how strictly you want your templates to be interpreted.
 Normally the parser is very lax and will accept almost anything without error. Unfortunately this can make
-it very hard to debug and can lead to unexpected behaviour.
+it very hard to debug and can lead to unexpected behaviour. 

 Liquid also comes with a stricter parser that can be used when editing templates to give better error messages
 when templates are invalid. You can enable this new parser like this:

 ```ruby
 Liquid::Template.error_mode = :strict # Raises a SyntaxError when invalid syntax is used
-Liquid::Template.error_mode = :warn # Adds strict errors to template.errors but continues as normal
+Liquid::Template.error_mode = :warn # Adds errors to template.errors but continues as normal
 Liquid::Template.error_mode = :lax # The default mode, accepts almost anything.
 ```

 If you want to set the error mode only on specific templates you can pass `:error_mode` as an option to `parse`:
 ```ruby
-Liquid::Template.parse(source, error_mode: :strict)
+Liquid::Template.parse(source, :error_mode => :strict)
 ```
 This is useful for doing things like enabling strict mode only in the theme editor.

@@ -111,4 +111,4 @@ template.render!({ 'x' => 1}, { strict_variables: true })

 To help track usages of a feature or code path in production, we have released opt-in usage tracking. To enable this, we provide an empty `Liquid:: Usage.increment` method which you can customize to your needs. The feature is well suited to https://github.com/Shopify/statsd-instrument. However, the choice of implementation is up to you.

-Once you have enabled usage tracking, we recommend reporting any events through Github Issues that your system may be logging. It is highly likely this event has been added to consider deprecating or improving code specific to this event, so please raise any concerns.
+Once you have enabled usage tracking, we recommend reporting any events through Github Issues that your system may be logging. It is highly likely this event has been added to consider deprecating or improving code specific to this event, so please raise any concerns.
@@ -30,18 +30,14 @@ class Servlet < LiquidServlet
  private

  def products_list
-    [
-      { 'name' => 'Arbor Draft', 'price' => 39900, 'description' => 'the *arbor draft* is a excellent product' },
-      { 'name' => 'Arbor Element', 'price' => 40000, 'description' => 'the *arbor element* rocks for freestyling' },
-      { 'name' => 'Arbor Diamond', 'price' => 59900, 'description' => 'the *arbor diamond* is a made up product because im obsessed with arbor and have no creativity' }
-    ]
+    [{ 'name' => 'Arbor Draft', 'price' => 39900, 'description' => 'the *arbor draft* is a excellent product' },
+     { 'name' => 'Arbor Element', 'price' => 40000, 'description' => 'the *arbor element* rocks for freestyling' },
+     { 'name' => 'Arbor Diamond', 'price' => 59900, 'description' => 'the *arbor diamond* is a made up product because im obsessed with arbor and have no creativity' }]
  end

  def more_products_list
-    [
-      { 'name' => 'Arbor Catalyst', 'price' => 39900, 'description' => 'the *arbor catalyst* is an advanced drop-through for freestyle and flatground performance and versatility' },
-      { 'name' => 'Arbor Fish', 'price' => 40000, 'description' => 'the *arbor fish* is a compact pin that features an extended wheelbase and time-honored teardrop shape' }
-    ]
+    [{ 'name' => 'Arbor Catalyst', 'price' => 39900, 'description' => 'the *arbor catalyst* is an advanced drop-through for freestyle and flatground performance and versatility' },
+     { 'name' => 'Arbor Fish', 'price' => 40000, 'description' => 'the *arbor fish* is a compact pin that features an extended wheelbase and time-honored teardrop shape' }]
  end

  def description
@@ -29,7 +29,6 @@ module Liquid
  WhitespaceControl           = '-'
  TagStart                    = /\{\%/
  TagEnd                      = /\%\}/
-  TagName                     = /#|\w+/
  VariableSignature           = /\(?[\w\-\.\[\]]\)?/
  VariableSegment             = /[\w\-]/
  VariableStart               = /\{\{/
@@ -37,11 +36,11 @@ module Liquid
  VariableIncompleteEnd       = /\}\}?/
  QuotedString                = /"[^"]*"|'[^']*'/
  QuotedFragment              = /#{QuotedString}|(?:[^\s,\|'"]|#{QuotedString})+/o
-  TagAttributes               = /(\w[\w-]*)\s*\:\s*(#{QuotedFragment})/o
+  TagAttributes               = /(\w+)\s*\:\s*(#{QuotedFragment})/o
  AnyStartingTag              = /#{TagStart}|#{VariableStart}/o
  PartialTemplateParser       = /#{TagStart}.*?#{TagEnd}|#{VariableStart}.*?#{VariableIncompleteEnd}/om
  TemplateParser              = /(#{PartialTemplateParser}|#{AnyStartingTag})/om
-  VariableParser              = /\[(?>[^\[\]]+|\g<0>)*\]|#{VariableSegment}+\??/o
+  VariableParser              = /\[[^\]]+\]|#{VariableSegment}+\??/o

  RAISE_EXCEPTION_LAMBDA = ->(_e) { raise }

@@ -60,8 +59,8 @@ require 'liquid/forloop_drop'
 require 'liquid/extensions'
 require 'liquid/errors'
 require 'liquid/interrupts'
-require 'liquid/strainer_template'
 require 'liquid/strainer_factory'
+require 'liquid/strainer_template'
 require 'liquid/expression'
 require 'liquid/context'
 require 'liquid/parser_switching'
@@ -84,7 +83,8 @@ require 'liquid/tokenizer'
 require 'liquid/parse_context'
 require 'liquid/partial_cache'
 require 'liquid/usage'
-require 'liquid/registers'
+require 'liquid/register'
+require 'liquid/static_registers'
 require 'liquid/template_factory'

 # Load all the tags of the standard library
@@ -36,17 +36,13 @@ module Liquid
    # @api private
    def self.raise_unknown_tag(tag, block_name, block_delimiter, parse_context)
      if tag == 'else'
-        raise SyntaxError, parse_context.locale.t(
-          "errors.syntax.unexpected_else",
-          block_name: block_name,
-        )
+        raise SyntaxError, parse_context.locale.t("errors.syntax.unexpected_else",
+          block_name: block_name)
      elsif tag.start_with?('end')
-        raise SyntaxError, parse_context.locale.t(
-          "errors.syntax.invalid_delimiter",
+        raise SyntaxError, parse_context.locale.t("errors.syntax.invalid_delimiter",
          tag: tag,
          block_name: block_name,
-          block_delimiter: block_delimiter,
-        )
+          block_delimiter: block_delimiter)
      else
        raise SyntaxError, parse_context.locale.t("errors.syntax.unknown_tag", tag: tag)
      end
@@ -4,8 +4,8 @@ require 'English'

 module Liquid
  class BlockBody
-    LiquidTagToken      = /\A\s*(#{TagName})\s*(.*?)\z/o
-    FullToken           = /\A#{TagStart}#{WhitespaceControl}?(\s*)(#{TagName})(\s*)(.*?)#{WhitespaceControl}?#{TagEnd}\z/om
+    LiquidTagToken      = /\A\s*(\w+)\s*(.*?)\z/o
+    FullToken           = /\A#{TagStart}#{WhitespaceControl}?(\s*)(\w+)(\s*)(.*?)#{WhitespaceControl}?#{TagEnd}\z/om
    ContentOfVariable   = /\A#{VariableStart}#{WhitespaceControl}?(.*?)#{WhitespaceControl}?#{VariableEnd}\z/om
    WhitespaceOrNothing = /\A\s*\z/
    TAGSTART            = "{%"
@@ -37,7 +37,7 @@ module Liquid

    private def parse_for_liquid_tag(tokenizer, parse_context)
      while (token = tokenizer.shift)
-        unless token.empty? || token.match?(WhitespaceOrNothing)
+        unless token.empty? || token =~ WhitespaceOrNothing
          unless token =~ LiquidTagToken
            # line isn't empty but didn't match tag syntax, yield and let the
            # caller raise a syntax error
@@ -109,22 +109,14 @@ module Liquid
      end
    end

-    private def handle_invalid_tag_token(token, parse_context)
-      if token.end_with?('%}')
-        yield token, token
-      else
-        BlockBody.raise_missing_tag_terminator(token, parse_context)
-      end
-    end
-
-    private def parse_for_document(tokenizer, parse_context, &block)
+    private def parse_for_document(tokenizer, parse_context)
      while (token = tokenizer.shift)
        next if token.empty?
        case
        when token.start_with?(TAGSTART)
          whitespace_handler(token, parse_context)
          unless token =~ FullToken
-            return handle_invalid_tag_token(token, parse_context, &block)
+            BlockBody.raise_missing_tag_terminator(token, parse_context)
          end
          tag_name = Regexp.last_match(2)
          markup   = Regexp.last_match(4)
@@ -158,7 +150,7 @@ module Liquid
          end
          parse_context.trim_whitespace = false
          @nodelist << token
-          @blank &&= token.match?(WhitespaceOrNothing)
+          @blank &&= !!(token =~ WhitespaceOrNothing)
        end
        parse_context.line_number = tokenizer.line_number
      end
@@ -239,8 +231,8 @@ module Liquid
    end

    def create_variable(token, parse_context)
-      if token =~ ContentOfVariable
-        markup = Regexp.last_match(1)
+      token.scan(ContentOfVariable) do |content|
+        markup = content.first
        return Variable.new(markup, parse_context)
      end
      BlockBody.raise_missing_variable_terminator(token, parse_context)
@@ -61,7 +61,7 @@ module Liquid
      @child_condition = nil
    end

-    def evaluate(context = deprecated_default_context)
+    def evaluate(context = Context.new)
      condition = self
      result = nil
      loop do
@@ -150,19 +150,11 @@ module Liquid
      end
    end

-    def deprecated_default_context
-      warn("DEPRECATION WARNING: Condition#evaluate without a context argument is deprecated" \
-        " and will be removed from Liquid 6.0.0.")
-      Context.new
-    end
-
    class ParseTreeVisitor < Liquid::ParseTreeVisitor
      def children
        [
-          @node.left,
-          @node.right,
-          @node.child_condition,
-          @node.attachment
+          @node.left, @node.right,
+          @node.child_condition, @node.attachment
        ].compact
      end
    end
@@ -26,9 +26,9 @@ module Liquid
      @environments = [environments]
      @environments.flatten!

-      @static_environments = [static_environments].flatten(1).freeze
+      @static_environments = [static_environments].flat_map(&:freeze).freeze
      @scopes              = [(outer_scope || {})]
-      @registers           = registers.is_a?(Registers) ? registers : Registers.new(registers)
+      @registers           = registers
      @errors              = []
      @partial             = false
      @strict_variables    = false
@@ -39,10 +39,6 @@ module Liquid
      @global_filter       = nil
      @disabled_tags       = {}

-      @registers.static[:cached_partials] ||= {}
-      @registers.static[:file_system] ||= Liquid::Template.file_system
-      @registers.static[:template_factory] ||= Liquid::TemplateFactory.new
-
      self.exception_renderer = Template.default_exception_renderer
      if rethrow_errors
        self.exception_renderer = Liquid::RAISE_EXCEPTION_LAMBDA
@@ -144,7 +140,7 @@ module Liquid
      self.class.build(
        resource_limits: resource_limits,
        static_environments: static_environments,
-        registers: Registers.new(registers),
+        registers: StaticRegisters.new(registers)
      ).tap do |subcontext|
        subcontext.base_scope_depth   = base_scope_depth + 1
        subcontext.exception_renderer = exception_renderer
@@ -25,10 +25,6 @@ module Liquid
  class Drop
    attr_writer :context

-    def initialize
-      @context = nil
-    end
-
    # Catch all for the method
    def liquid_method_missing(method)
      return nil unless @context&.strict_variables
@@ -3,33 +3,28 @@
 module Liquid
  class Expression
    LITERALS = {
-      nil => nil,
-      'nil' => nil,
-      'null' => nil,
-      '' => nil,
+      nil => nil, 'nil' => nil, 'null' => nil, '' => nil,
      'true' => true,
      'false' => false,
      'blank' => '',
      'empty' => ''
    }.freeze

-    INTEGERS_REGEX       = /\A(-?\d+)\z/
-    FLOATS_REGEX         = /\A(-?\d[\d\.]+)\z/
+    SINGLE_QUOTED_STRING = /\A\s*'(.*)'\s*\z/m
+    DOUBLE_QUOTED_STRING = /\A\s*"(.*)"\s*\z/m
+    INTEGERS_REGEX       = /\A\s*(-?\d+)\s*\z/
+    FLOATS_REGEX         = /\A\s*(-?\d[\d\.]+)\s*\z/

    # Use an atomic group (?>...) to avoid pathological backtracing from
    # malicious input as described in https://github.com/Shopify/liquid/issues/1357
-    RANGES_REGEX         = /\A\(\s*(?>(\S+)\s*\.\.)\s*(\S+)\s*\)\z/
+    RANGES_REGEX         = /\A\s*\(\s*(?>(\S+)\s*\.\.)\s*(\S+)\s*\)\s*\z/

    def self.parse(markup)
-      return nil unless markup
-
-      markup = markup.strip
-      if (markup.start_with?('"') && markup.end_with?('"')) ||
-         (markup.start_with?("'") && markup.end_with?("'"))
-        return markup[1..-2]
-      end
-
      case markup
+      when nil
+        nil
+      when SINGLE_QUOTED_STRING, DOUBLE_QUOTED_STRING
+        Regexp.last_match(1)
      when INTEGERS_REGEX
        Regexp.last_match(1).to_i
      when RANGES_REGEX
@@ -37,6 +32,7 @@ module Liquid
      when FLOATS_REGEX
        Regexp.last_match(1).to_f
      else
+        markup = markup.strip
        if LITERALS.key?(markup)
          LITERALS[markup]
        else
@@ -1,11 +1,6 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type object
-  # @liquid_name forloop
-  # @liquid_summary
-  #   Information about a parent [`for` loop](/docs/api/liquid/tags/for).
  class ForloopDrop < Drop
    def initialize(name, length, parentloop)
      @name       = name
@@ -14,68 +9,33 @@ module Liquid
      @index      = 0
    end

-    # @liquid_public_docs
-    # @liquid_name length
-    # @liquid_summary
-    #   The total number of iterations in the loop.
-    # @liquid_return [number]
-    attr_reader :length
+    attr_reader :length, :parentloop

-    # @liquid_public_docs
-    # @liquid_name parentloop
-    # @liquid_summary
-    #   The parent `forloop` object.
-    # @liquid_description
-    #   If the current `for` loop isn't nested inside another `for` loop, then `nil` is returned.
-    # @liquid_return [forloop]
-    attr_reader :parentloop
+    def name
+      Usage.increment('forloop_drop_name')
+      @name
+    end

-    attr_reader :name
-
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of the current iteration.
-    # @liquid_return [number]
    def index
      @index + 1
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 0-based index of the current iteration.
-    # @liquid_return [number]
    def index0
      @index
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of the current iteration, in reverse order.
-    # @liquid_return [number]
    def rindex
      @length - @index
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 0-based index of the current iteration, in reverse order.
-    # @liquid_return [number]
    def rindex0
      @length - @index - 1
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current iteration is the first. Returns `false` if not.
-    # @liquid_return [boolean]
    def first
      @index == 0
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current iteration is the last. Returns `false` if not.
-    # @liquid_return [boolean]
    def last
      @index == @length - 1
    end
@@ -18,7 +18,6 @@ module Liquid
    IDENTIFIER            = /[a-zA-Z_][\w-]*\??/
    SINGLE_STRING_LITERAL = /'[^\']*'/
    DOUBLE_STRING_LITERAL = /"[^\"]*"/
-    STRING_LITERAL        = Regexp.union(SINGLE_STRING_LITERAL, DOUBLE_STRING_LITERAL)
    NUMBER_LITERAL        = /-?\d+(\.\d+)?/
    DOTDOT                = /\.\./
    COMPARISON_OPERATOR   = /==|!=|<>|<=?|>=?|contains(?=\s)/
@@ -36,7 +35,9 @@ module Liquid
        break if @ss.eos?
        tok      = if (t = @ss.scan(COMPARISON_OPERATOR))
          [:comparison, t]
-        elsif (t = @ss.scan(STRING_LITERAL))
+        elsif (t = @ss.scan(SINGLE_STRING_LITERAL))
+          [:string, t]
+        elsif (t = @ss.scan(DOUBLE_STRING_LITERAL))
          [:string, t]
        elsif (t = @ss.scan(NUMBER_LITERAL))
          [:number, t]
@@ -13,16 +13,15 @@
      for_invalid_attribute: "Invalid attribute in for loop. Valid attributes are limit and offset"
      if: "Syntax Error in tag 'if' - Valid syntax: if [expression]"
      include: "Error in tag 'include' - Valid syntax: include '[template]' (with|for) [object|collection]"
-      inline_comment_invalid: "Syntax error in tag '#' - Each line of comments must be prefixed by the '#' character"
+      unknown_tag: "Unknown tag '%{tag}'"
      invalid_delimiter: "'%{tag}' is not a valid delimiter for %{block_name} tags. use %{block_delimiter}"
-      render: "Syntax error in tag 'render' - Template name must be a quoted string"
-      table_row: "Syntax Error in 'table_row loop' - Valid syntax: table_row [item] in [collection] cols=3"
-      tag_never_closed: "'%{block_name}' tag was never closed"
-      tag_termination: "Tag '%{token}' was not properly terminated with regexp: %{tag_end}"
      unexpected_else: "%{block_name} tag does not expect 'else' tag"
      unexpected_outer_tag: "Unexpected outer '%{tag}' tag"
-      unknown_tag: "Unknown tag '%{tag}'"
+      tag_termination: "Tag '%{token}' was not properly terminated with regexp: %{tag_end}"
      variable_termination: "Variable '%{token}' was not properly terminated with regexp: %{tag_end}"
+      tag_never_closed: "'%{block_name}' tag was never closed"
+      table_row: "Syntax Error in 'table_row loop' - Valid syntax: table_row [item] in [collection] cols=3"
+      render: "Syntax error in tag 'render' - Template name must be a quoted string"
    argument:
      include: "Argument error in tag 'include' - Illegal template name"
    disabled:
@@ -3,27 +3,19 @@
 module Liquid
  class PartialCache
    def self.load(template_name, context:, parse_context:)
-      cached_partials = context.registers[:cached_partials]
+      cached_partials = (context.registers[:cached_partials] ||= {})
      cached = cached_partials[template_name]
      return cached if cached

-      file_system = context.registers[:file_system]
+      file_system = (context.registers[:file_system] ||= Liquid::Template.file_system)
      source      = file_system.read_template_file(template_name)

      parse_context.partial = true

-      template_factory = context.registers[:template_factory]
+      template_factory = (context.registers[:template_factory] ||= Liquid::TemplateFactory.new)
      template = template_factory.for(template_name)

-      begin
-        partial = template.parse(source, parse_context)
-      rescue Liquid::Error => e
-        e.template_name = template&.name || template_name
-        raise e
-      end
-
-      partial.name ||= template_name
-
+      partial = template.parse(source, parse_context)
      cached_partials[template_name] = partial
    ensure
      parse_context.partial = false
@@ -8,17 +8,7 @@ module Liquid
      if start_obj.respond_to?(:evaluate) || end_obj.respond_to?(:evaluate)
        new(start_obj, end_obj)
      else
-        begin
-          start_obj.to_i..end_obj.to_i
-        rescue NoMethodError
-          invalid_expr = start_markup unless start_obj.respond_to?(:to_i)
-          invalid_expr ||= end_markup unless end_obj.respond_to?(:to_i)
-          if invalid_expr
-            raise Liquid::SyntaxError, "Invalid expression type '#{invalid_expr}' in range expression"
-          end
-
-          raise
-        end
+        start_obj.to_i..end_obj.to_i
      end
    end

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+module Liquid
+  class Register
+  end
+end
@@ -1,51 +0,0 @@
-# frozen_string_literal: true
-
-module Liquid
-  class Registers
-    attr_reader :static
-
-    def initialize(registers = {})
-      @static = registers.is_a?(Registers) ? registers.static : registers
-      @changes = {}
-    end
-
-    def []=(key, value)
-      @changes[key] = value
-    end
-
-    def [](key)
-      if @changes.key?(key)
-        @changes[key]
-      else
-        @static[key]
-      end
-    end
-
-    def delete(key)
-      @changes.delete(key)
-    end
-
-    UNDEFINED = Object.new
-
-    def fetch(key, default = UNDEFINED, &block)
-      if @changes.key?(key)
-        @changes.fetch(key)
-      elsif default != UNDEFINED
-        if block_given?
-          @static.fetch(key, &block)
-        else
-          @static.fetch(key, default)
-        end
-      else
-        @static.fetch(key, &block)
-      end
-    end
-
-    def key?(key)
-      @changes.key?(key) || @static.key?(key)
-    end
-  end
-
-  # Alias for backwards compatibility
-  StaticRegisters = Registers
-end
@@ -6,14 +6,7 @@ require 'bigdecimal'

 module Liquid
  module StandardFilters
-    MAX_I32 = (1 << 31) - 1
-    private_constant :MAX_I32
-
-    MIN_I64 = -(1 << 63)
-    MAX_I64 = (1 << 63) - 1
-    I64_RANGE = MIN_I64..MAX_I64
-    private_constant :MIN_I64, :MAX_I64, :I64_RANGE
-
+    MAX_INT = (1 << 31) - 1
    HTML_ESCAPE = {
      '&' => '&amp;',
      '>' => '&gt;',
@@ -25,103 +18,43 @@ module Liquid
    STRIP_HTML_BLOCKS       = Regexp.union(
      %r{<script.*?</script>}m,
      /<!--.*?-->/m,
-      %r{<style.*?</style>}m,
+      %r{<style.*?</style>}m
    )
    STRIP_HTML_TAGS = /<.*?>/m

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Returns the size of a string or array.
-    # @liquid_description
-    #   The size of a string is the number of characters that the string includes. The size of an array is the number of items
-    #   in the array.
-    # @liquid_syntax variable | size
-    # @liquid_return [number]
+    # Return the size of an array or of an string
    def size(input)
      input.respond_to?(:size) ? input.size : 0
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Converts a string to all lowercase characters.
-    # @liquid_syntax string | downcase
-    # @liquid_return [string]
+    # convert an input string to DOWNCASE
    def downcase(input)
      input.to_s.downcase
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Converts a string to all uppercase characters.
-    # @liquid_syntax string | upcase
-    # @liquid_return [string]
+    # convert an input string to UPCASE
    def upcase(input)
      input.to_s.upcase
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Capitalizes the first word in a string.
-    # @liquid_syntax string | capitalize
-    # @liquid_return [string]
+    # capitalize words in the input centence
    def capitalize(input)
      input.to_s.capitalize
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Escapes special characters in HTML, such as `<>`, `'`, and `&`, and converts characters into escape sequences. The filter doesn't effect characters within the string that don’t have a corresponding escape sequence.".
-    # @liquid_syntax string | escape
-    # @liquid_return [string]
    def escape(input)
      CGI.escapeHTML(input.to_s) unless input.nil?
    end
    alias_method :h, :escape

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Escapes a string without changing characters that have already been escaped.
-    # @liquid_syntax string | escape_once
-    # @liquid_return [string]
    def escape_once(input)
      input.to_s.gsub(HTML_ESCAPE_ONCE_REGEXP, HTML_ESCAPE)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Converts any URL-unsafe characters in a string to the
-    #   [percent-encoded](https://developer.mozilla.org/en-US/docs/Glossary/percent-encoding) equivalent.
-    # @liquid_description
-    #   > Note:
-    #   > Spaces are converted to a `+` character, instead of a percent-encoded character.
-    # @liquid_syntax string | url_encode
-    # @liquid_return [string]
    def url_encode(input)
      CGI.escape(input.to_s) unless input.nil?
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Decodes any [percent-encoded](https://developer.mozilla.org/en-US/docs/Glossary/percent-encoding) characters
-    #   in a string.
-    # @liquid_syntax string | url_decode
-    # @liquid_return [string]
    def url_decode(input)
      return if input.nil?

@@ -131,94 +64,38 @@ module Liquid
      result
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Encodes a string to [Base64 format](https://developer.mozilla.org/en-US/docs/Glossary/Base64).
-    # @liquid_syntax string | base64_encode
-    # @liquid_return [string]
    def base64_encode(input)
      Base64.strict_encode64(input.to_s)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Decodes a string in [Base64 format](https://developer.mozilla.org/en-US/docs/Glossary/Base64).
-    # @liquid_syntax string | base64_decode
-    # @liquid_return [string]
    def base64_decode(input)
      Base64.strict_decode64(input.to_s)
    rescue ::ArgumentError
      raise Liquid::ArgumentError, "invalid base64 provided to base64_decode"
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Encodes a string to URL-safe [Base64 format](https://developer.mozilla.org/en-US/docs/Glossary/Base64).
-    # @liquid_syntax string | base64_url_safe_encode
-    # @liquid_return [string]
    def base64_url_safe_encode(input)
      Base64.urlsafe_encode64(input.to_s)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Decodes a string in URL-safe [Base64 format](https://developer.mozilla.org/en-US/docs/Glossary/Base64).
-    # @liquid_syntax string | base64_url_safe_decode
-    # @liquid_return [string]
    def base64_url_safe_decode(input)
      Base64.urlsafe_decode64(input.to_s)
    rescue ::ArgumentError
      raise Liquid::ArgumentError, "invalid base64 provided to base64_url_safe_decode"
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Returns a substring or series of array items, starting at a given 0-based index.
-    # @liquid_description
-    #   By default, the substring has a length of one character, and the array series has one array item. However, you can
-    #   provide a second parameter to specify the number of characters or array items.
-    # @liquid_syntax string | slice
-    # @liquid_return [string]
    def slice(input, offset, length = nil)
      offset = Utils.to_integer(offset)
      length = length ? Utils.to_integer(length) : 1

-      begin
-        if input.is_a?(Array)
-          input.slice(offset, length) || []
-        else
-          input.to_s.slice(offset, length) || ''
-        end
-      rescue RangeError
-        if I64_RANGE.cover?(length) && I64_RANGE.cover?(offset)
-          raise # unexpected error
-        end
-        offset = offset.clamp(I64_RANGE)
-        length = length.clamp(I64_RANGE)
-        retry
+      if input.is_a?(Array)
+        input.slice(offset, length) || []
+      else
+        input.to_s.slice(offset, length) || ''
      end
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Truncates a string down to a given number of characters.
-    # @liquid_description
-    #   If the specified number of characters is less than the length of the string, then an ellipsis (`...`) is appended to
-    #   the truncated string. The ellipsis is included in the character count of the truncated string.
-    # @liquid_syntax string | truncate: number
-    # @liquid_return [string]
+    # Truncate a string down to x characters
    def truncate(input, length = 50, truncate_string = "...")
      return if input.nil?
      input_str = input.to_s
@@ -232,20 +109,6 @@ module Liquid
      input_str.length > length ? input_str[0...l].concat(truncate_string_str) : input_str
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Truncates a string down to a given number of words.
-    # @liquid_description
-    #   If the specified number of words is less than the number of words in the string, then an ellipsis (`...`) is appended to
-    #   the truncated string.
-    #
-    #   > Caution:
-    #   > HTML tags are treated as words, so you should strip any HTML from truncated content. If you don't strip HTML, then
-    #   > closing HTML tags can be removed, which can result in unexpected behavior.
-    # @liquid_syntax string | truncatewords: number
-    # @liquid_return [string]
    def truncatewords(input, words = 15, truncate_string = "...")
      return if input.nil?
      input = input.to_s
@@ -255,9 +118,9 @@ module Liquid
      wordlist = begin
        input.split(" ", words + 1)
      rescue RangeError
-        # integer too big for String#split, but we can semantically assume no truncation is needed
-        return input if words + 1 > MAX_I32
-        raise # unexpected error
+        raise if words + 1 < MAX_INT
+        # e.g. integer #{words} too big to convert to `int'
+        raise Liquid::ArgumentError, "integer #{words} too big for truncatewords"
      end
      return input if wordlist.length <= words

@@ -265,57 +128,27 @@ module Liquid
      wordlist.join(" ").concat(truncate_string.to_s)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Splits a string into an array of substrings based on a given separator.
-    # @liquid_syntax string | split: string
-    # @liquid_return [array[string]]
+    # Split input string into an array of substrings separated by given pattern.
+    #
+    # Example:
+    #   <div class="summary">{{ post | split '//' | first }}</div>
+    #
    def split(input, pattern)
      input.to_s.split(pattern.to_s)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Strips all whitespace from the left and right of a string.
-    # @liquid_syntax string | strip
-    # @liquid_return [string]
    def strip(input)
      input.to_s.strip
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Strips all whitespace from the left of a string.
-    # @liquid_syntax string | lstrip
-    # @liquid_return [string]
    def lstrip(input)
      input.to_s.lstrip
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Strips all whitespace from the right of a string.
-    # @liquid_syntax string | rstrip
-    # @liquid_return [string]
    def rstrip(input)
      input.to_s.rstrip
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Strips all HTML tags from a string.
-    # @liquid_syntax string | strip_html
-    # @liquid_return [string]
    def strip_html(input)
      empty  = ''
      result = input.to_s.gsub(STRIP_HTML_BLOCKS, empty)
@@ -323,35 +156,18 @@ module Liquid
      result
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Strips all newline characters (line breaks) from a string.
-    # @liquid_syntax string | strip_newlines
-    # @liquid_return [string]
+    # Remove all newlines from the string
    def strip_newlines(input)
      input.to_s.gsub(/\r?\n/, '')
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Combines all of the items in an array into a single string, separated by a space.
-    # @liquid_syntax array | join
-    # @liquid_return [string]
+    # Join elements of the array with certain character between them
    def join(input, glue = ' ')
      InputIterator.new(input, context).join(glue)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Sorts the items in an array in case-sensitive alphabetical, or numerical, order.
-    # @liquid_syntax array | sort
-    # @liquid_return [array[untyped]]
+    # Sort elements of the array
+    # provide optional property with which to sort an array of hashes or drops
    def sort(input, property = nil)
      ary = InputIterator.new(input, context)

@@ -370,17 +186,8 @@ module Liquid
      end
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Sorts the items in an array in case-insensitive alphabetical order.
-    # @liquid_description
-    #   > Caution:
-    #   > You shouldn't use the `sort_natural` filter to sort numerical values. When comparing items an array, each item is converted to a
-    #   > string, so sorting on numerical values can lead to unexpected results.
-    # @liquid_syntax array | sort_natural
-    # @liquid_return [array[untyped]]
+    # Sort elements of an array ignoring case if strings
+    # provide optional property with which to sort an array of hashes or drops
    def sort_natural(input, property = nil)
      ary = InputIterator.new(input, context)

@@ -399,48 +206,30 @@ module Liquid
      end
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Filters an array to include only items with a specific property value.
-    # @liquid_description
-    #   This requires you to provide both the property name and the associated value.
-    # @liquid_syntax array | where: string, string
-    # @liquid_return [array[untyped]]
+    # Filter the elements of an array to those with a certain property value.
+    # By default the target is any truthy value.
    def where(input, property, target_value = nil)
      ary = InputIterator.new(input, context)

      if ary.empty?
        []
-      elsif target_value.nil?
-        ary.select do |item|
-          item[property]
+      elsif ary.first.respond_to?(:[]) && target_value.nil?
+        begin
+          ary.select { |item| item[property] }
        rescue TypeError
          raise_property_error(property)
-        rescue NoMethodError
-          return nil unless item.respond_to?(:[])
-          raise
        end
-      else
-        ary.select do |item|
-          item[property] == target_value
+      elsif ary.first.respond_to?(:[])
+        begin
+          ary.select { |item| item[property] == target_value }
        rescue TypeError
          raise_property_error(property)
-        rescue NoMethodError
-          return nil unless item.respond_to?(:[])
-          raise
        end
      end
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Removes any duplicate items in an array.
-    # @liquid_syntax array | uniq
-    # @liquid_return [array[untyped]]
+    # Remove duplicate elements from an array
+    # provide optional property with which to determine uniqueness
    def uniq(input, property = nil)
      ary = InputIterator.new(input, context)

@@ -448,37 +237,22 @@ module Liquid
        ary.uniq
      elsif ary.empty? # The next two cases assume a non-empty array.
        []
-      else
-        ary.uniq do |item|
-          item[property]
+      elsif ary.first.respond_to?(:[])
+        begin
+          ary.uniq { |a| a[property] }
        rescue TypeError
          raise_property_error(property)
-        rescue NoMethodError
-          return nil unless item.respond_to?(:[])
-          raise
        end
      end
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Reverses the order of the items in an array.
-    # @liquid_syntax array | reverse
-    # @liquid_return [array[untyped]]
+    # Reverse the elements of an array
    def reverse(input)
      ary = InputIterator.new(input, context)
      ary.reverse
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Creates an array of values from a specific property of the items in an array.
-    # @liquid_syntax array | map: string
-    # @liquid_return [array[untyped]]
+    # map/collect on a given property
    def map(input, property)
      InputIterator.new(input, context).map do |e|
        e = e.call if e.is_a?(Proc)
@@ -494,13 +268,8 @@ module Liquid
      raise_property_error(property)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Removes any `nil` items from an array.
-    # @liquid_syntax array | compact
-    # @liquid_return [array[untyped]]
+    # Remove nils within an array
+    # provide optional property with which to check for nil
    def compact(input, property = nil)
      ary = InputIterator.new(input, context)

@@ -508,116 +277,40 @@ module Liquid
        ary.compact
      elsif ary.empty? # The next two cases assume a non-empty array.
        []
-      else
-        ary.reject do |item|
-          item[property].nil?
+      elsif ary.first.respond_to?(:[])
+        begin
+          ary.reject { |a| a[property].nil? }
        rescue TypeError
          raise_property_error(property)
-        rescue NoMethodError
-          return nil unless item.respond_to?(:[])
-          raise
        end
      end
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Replaces any instance of a substring inside a string with a given string.
-    # @liquid_syntax string | replace: string, string
-    # @liquid_return [string]
+    # Replace occurrences of a string with another
    def replace(input, string, replacement = '')
      input.to_s.gsub(string.to_s, replacement.to_s)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Replaces the first instance of a substring inside a string with a given string.
-    # @liquid_syntax string | replace_first: string, string
-    # @liquid_return [string]
+    # Replace the first occurrences of a string with another
    def replace_first(input, string, replacement = '')
      input.to_s.sub(string.to_s, replacement.to_s)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Replaces the last instance of a substring inside a string with a given string.
-    # @liquid_syntax string | replace_last: string, string
-    # @liquid_return [string]
-    def replace_last(input, string, replacement)
-      input = input.to_s
-      string = string.to_s
-      replacement = replacement.to_s
-
-      start_index = input.rindex(string)
-
-      return input unless start_index
-
-      output = input.dup
-      output[start_index, string.length] = replacement
-      output
-    end
-
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Removes any instance of a substring inside a string.
-    # @liquid_syntax string | remove: string
-    # @liquid_return [string]
+    # remove a substring
    def remove(input, string)
-      replace(input, string, '')
+      input.to_s.gsub(string.to_s, '')
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Removes the first instance of a substring inside a string.
-    # @liquid_syntax string | remove_first: string
-    # @liquid_return [string]
+    # remove the first occurrences of a substring
    def remove_first(input, string)
-      replace_first(input, string, '')
+      input.to_s.sub(string.to_s, '')
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Removes the last instance of a substring inside a string.
-    # @liquid_syntax string | remove_last: string
-    # @liquid_return [string]
-    def remove_last(input, string)
-      replace_last(input, string, '')
-    end
-
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Adds a given string to the end of a string.
-    # @liquid_syntax string | append: string
-    # @liquid_return [string]
+    # add one string to another
    def append(input, string)
      input.to_s + string.to_s
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Concatenates (combines) two arrays.
-    # @liquid_description
-    #   > Note:
-    #   > The `concat` filter won't filter out duplicates. If you want to remove duplicates, then you need to use the
-    #   > [`uniq` filter](/docs/api/liquid/filters/uniq).
-    # @liquid_syntax array | concat: array
-    # @liquid_return [array[untyped]]
    def concat(input, array)
      unless array.respond_to?(:to_ary)
        raise ArgumentError, "concat filter requires an array argument"
@@ -625,24 +318,12 @@ module Liquid
      InputIterator.new(input, context).concat(array)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Adds a given string to the beginning of a string.
-    # @liquid_syntax string | prepend: string
-    # @liquid_return [string]
+    # prepend a string to another
    def prepend(input, string)
      string.to_s + input.to_s
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Converts newlines (`\n`) in a string to HTML line breaks (`<br>`).
-    # @liquid_syntax string | newline_to_br
-    # @liquid_return [string]
+    # Add <br /> tags in front of all newlines in input string
    def newline_to_br(input)
      input.to_s.gsub(/\r?\n/, "<br />\n")
    end
@@ -686,106 +367,58 @@ module Liquid
      date.strftime(format.to_s)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Returns the first item in an array.
-    # @liquid_syntax array | first
-    # @liquid_return [untyped]
+    # Get the first element of the passed in array
+    #
+    # Example:
+    #    {{ product.images | first | to_img }}
+    #
    def first(array)
      array.first if array.respond_to?(:first)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Returns the last item in an array.
-    # @liquid_syntax array | last
-    # @liquid_return [untyped]
+    # Get the last element of the passed in array
+    #
+    # Example:
+    #    {{ product.images | last | to_img }}
+    #
    def last(array)
      array.last if array.respond_to?(:last)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Returns the absolute value of a number.
-    # @liquid_syntax number | abs
-    # @liquid_return [number]
+    # absolute value
    def abs(input)
      result = Utils.to_number(input).abs
      result.is_a?(BigDecimal) ? result.to_f : result
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Adds two numbers.
-    # @liquid_syntax number | plus: number
-    # @liquid_return [number]
+    # addition
    def plus(input, operand)
      apply_operation(input, operand, :+)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Subtracts a given number from another number.
-    # @liquid_syntax number | minus: number
-    # @liquid_return [number]
+    # subtraction
    def minus(input, operand)
      apply_operation(input, operand, :-)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Multiplies a number by a given number.
-    # @liquid_syntax number | times: number
-    # @liquid_return [number]
+    # multiplication
    def times(input, operand)
      apply_operation(input, operand, :*)
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Divides a number by a given number. The `divided_by` filter produces a result of the same type as the divisor. This means if you divide by an integer, the result will be an integer, and if you divide by a float, the result will be a float.
-    # @liquid_syntax number | divided_by: number
-    # @liquid_return [number]
+    # division
    def divided_by(input, operand)
      apply_operation(input, operand, :/)
    rescue ::ZeroDivisionError => e
      raise Liquid::ZeroDivisionError, e.message
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Returns the remainder of dividing a number by a given number.
-    # @liquid_syntax number | modulo: number
-    # @liquid_return [number]
    def modulo(input, operand)
      apply_operation(input, operand, :%)
    rescue ::ZeroDivisionError => e
      raise Liquid::ZeroDivisionError, e.message
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Rounds a number to the nearest integer.
-    # @liquid_syntax number | round
-    # @liquid_return [number]
    def round(input, n = 0)
      result = Utils.to_number(input).round(Utils.to_number(n))
      result = result.to_f if result.is_a?(BigDecimal)
@@ -795,39 +428,18 @@ module Liquid
      raise Liquid::FloatDomainError, e.message
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Rounds a number up to the nearest integer.
-    # @liquid_syntax number | ceil
-    # @liquid_return [number]
    def ceil(input)
      Utils.to_number(input).ceil.to_i
    rescue ::FloatDomainError => e
      raise Liquid::FloatDomainError, e.message
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Rounds a number down to the nearest integer.
-    # @liquid_syntax number | floor
-    # @liquid_return [number]
    def floor(input)
      Utils.to_number(input).floor.to_i
    rescue ::FloatDomainError => e
      raise Liquid::FloatDomainError, e.message
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Limits a number to a minimum value.
-    # @liquid_syntax number | at_least
-    # @liquid_return [number]
    def at_least(input, n)
      min_value = Utils.to_number(n)

@@ -836,13 +448,6 @@ module Liquid
      result.is_a?(BigDecimal) ? result.to_f : result
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Limits a number to a maximum value.
-    # @liquid_syntax number | at_most
-    # @liquid_return [number]
    def at_most(input, n)
      max_value = Utils.to_number(n)

@@ -851,49 +456,22 @@ module Liquid
      result.is_a?(BigDecimal) ? result.to_f : result
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category default
-    # @liquid_summary
-    #   Sets a default value for any variable whose value is one of the following:
+    # Set a default value when the input is nil, false or empty
+    #
+    # Example:
+    #    {{ product.title | default: "No Title" }}
+    #
+    # Use `allow_false` when an input should only be tested against nil or empty and not false.
+    #
+    # Example:
+    #    {{ product.title | default: "No Title", allow_false: true }}
    #
-    #   - [`empty`](/docs/api/liquid/basics#empty)
-    #   - [`false`](/docs/api/liquid/basics#truthy-and-falsy)
-    #   - [`nil`](/docs/api/liquid/basics#nil)
-    # @liquid_syntax variable | default: variable
-    # @liquid_return [untyped]
-    # @liquid_optional_param allow_false [boolean] Whether to use false values instead of the default.
    def default(input, default_value = '', options = {})
      options = {} unless options.is_a?(Hash)
      false_check = options['allow_false'] ? input.nil? : !Liquid::Utils.to_liquid_value(input)
      false_check || (input.respond_to?(:empty?) && input.empty?) ? default_value : input
    end

-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Returns the sum of all elements in an array.
-    # @liquid_syntax array | sum
-    # @liquid_return [number]
-    def sum(input, property = nil)
-      ary = InputIterator.new(input, context)
-
-      if ary.empty?
-        0
-      elsif property.nil?
-        ary.sum do |item|
-          Utils.to_number(item)
-        end
-      else
-        ary.sum do |item|
-          item.respond_to?(:[]) ? Utils.to_number(item[property]) : 0
-        rescue TypeError
-          raise_property_error(property)
-        end
-      end
-    end
-
    private

    attr_reader :context
@@ -908,16 +486,10 @@ module Liquid
    end

    def nil_safe_compare(a, b)
-      result = a <=> b
-
-      if result
-        result
-      elsif a.nil?
-        1
-      elsif b.nil?
-        -1
+      if !a.nil? && !b.nil?
+        a <=> b
      else
-        raise Liquid::ArgumentError, "cannot sort values of incompatible types"
+        a.nil? ? 1 : -1
      end
    end

@@ -972,9 +544,8 @@ module Liquid

      def each
        @input.each do |e|
-          e = e.respond_to?(:to_liquid) ? e.to_liquid : e
          e.context = @context if e.respond_to?(:context=)
-          yield(e)
+          yield(e.respond_to?(:to_liquid) ? e.to_liquid : e)
        end
      end
    end
@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+module Liquid
+  class StaticRegisters
+    attr_reader :static
+
+    def initialize(registers = {})
+      @static    = registers.is_a?(StaticRegisters) ? registers.static : registers
+      @registers = {}
+    end
+
+    def []=(key, value)
+      @registers[key] = value
+    end
+
+    def [](key)
+      if @registers.key?(key)
+        @registers[key]
+      else
+        @static[key]
+      end
+    end
+
+    def delete(key)
+      @registers.delete(key)
+    end
+
+    UNDEFINED = Object.new
+
+    def fetch(key, default = UNDEFINED, &block)
+      if @registers.key?(key)
+        @registers.fetch(key)
+      elsif default != UNDEFINED
+        @static.fetch(key, default, &block)
+      else
+        @static.fetch(key, &block)
+      end
+    end
+
+    def key?(key)
+      @registers.key?(key) || @static.key?(key)
+    end
+  end
+end
@@ -7,30 +7,25 @@ module Liquid

    def add_global_filter(filter)
      strainer_class_cache.clear
-      GlobalCache.add_filter(filter)
+      global_filters << filter
    end

    def create(context, filters = [])
      strainer_from_cache(filters).new(context)
    end

-    def global_filter_names
-      GlobalCache.filter_method_names
-    end
-
-    GlobalCache = Class.new(StrainerTemplate)
-
    private

+    def global_filters
+      @global_filters ||= []
+    end
+
    def strainer_from_cache(filters)
-      if filters.empty?
-        GlobalCache
-      else
-        strainer_class_cache[filters] ||= begin
-          klass = Class.new(GlobalCache)
-          filters.each { |f| klass.add_filter(f) }
-          klass
-        end
+      strainer_class_cache[filters] ||= begin
+        klass = Class.new(StrainerTemplate)
+        global_filters.each { |f| klass.add_filter(f) }
+        filters.each { |f| klass.add_filter(f) }
+        klass
      end
    end

@@ -31,15 +31,6 @@ module Liquid
        filter_methods.include?(method.to_s)
      end

-      def inherited(subclass)
-        super
-        subclass.instance_variable_set(:@filter_methods, @filter_methods.dup)
-      end
-
-      def filter_method_names
-        filter_methods.map(&:to_s).to_a
-      end
-
      private

      def filter_methods
@@ -1,11 +1,6 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type object
-  # @liquid_name tablerowloop
-  # @liquid_summary
-  #   Information about a parent [`tablerow` loop](/docs/api/liquid/tags/tablerow).
  class TablerowloopDrop < Drop
    def initialize(length, cols)
      @length = length
@@ -15,92 +10,40 @@ module Liquid
      @index  = 0
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   The total number of iterations in the loop.
-    # @liquid_return [number]
-    attr_reader :length
+    attr_reader :length, :col, :row

-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of the current column.
-    # @liquid_return [number]
-    attr_reader :col
-
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of current row.
-    # @liquid_return [number]
-    attr_reader :row
-
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of the current iteration.
-    # @liquid_return [number]
    def index
      @index + 1
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 0-based index of the current iteration.
-    # @liquid_return [number]
    def index0
      @index
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 0-based index of the current column.
-    # @liquid_return [number]
    def col0
      @col - 1
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of the current iteration, in reverse order.
-    # @liquid_return [number]
    def rindex
      @length - @index
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 0-based index of the current iteration, in reverse order.
-    # @liquid_return [number]
    def rindex0
      @length - @index - 1
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current iteration is the first. Returns `false` if not.
-    # @liquid_return [boolean]
    def first
      @index == 0
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current iteration is the last. Returns `false` if not.
-    # @liquid_return [boolean]
    def last
      @index == @length - 1
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current column is the first in the row. Returns `false` if not.
-    # @liquid_return [boolean]
    def col_first
      @col == 1
    end

-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current column is the last in the row. Returns `false` if not.
-    # @liquid_return [boolean]
    def col_last
      @col == @cols
    end
@@ -14,18 +14,12 @@ module Liquid
      end

      def disable_tags(*tag_names)
-        tag_names += disabled_tags
-        define_singleton_method(:disabled_tags) { tag_names }
+        @disabled_tags ||= []
+        @disabled_tags.concat(tag_names)
        prepend(Disabler)
      end

      private :new
-
-      protected
-
-      def disabled_tags
-        []
-      end
    end

    def initialize(tag_name, markup, parse_context)
@@ -3,6 +3,14 @@
 module Liquid
  class Tag
    module Disabler
+      module ClassMethods
+        attr_reader :disabled_tags
+      end
+
+      def self.prepended(base)
+        base.extend(ClassMethods)
+      end
+
      def render_to_output_buffer(context, output)
        context.with_disabled_tags(self.class.disabled_tags) do
          super
@@ -1,18 +1,14 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category variable
-  # @liquid_name assign
-  # @liquid_summary
-  #   Creates a new variable.
-  # @liquid_description
-  #   You can create variables of any [basic type](/docs/api/liquid/basics#types), [object](/docs/api/liquid/objects), or object property.
-  # @liquid_syntax
-  #   {% assign variable_name = value %}
-  # @liquid_syntax_keyword variable_name The name of the variable being created.
-  # @liquid_syntax_keyword value The value you want to assign to the variable.
+  # Assign sets a variable in your template.
+  #
+  #   {% assign foo = 'monkey' %}
+  #
+  # You can then use the variable later in the page.
+  #
+  #  {{ foo }}
+  #
  class Assign < Tag
    Syntax = /(#{VariableSignature}+)\s*=\s*(.*)\s*/om

@@ -10,14 +10,6 @@ module Liquid
  #      {% endif %}
  #    {% endfor %}
  #
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category iteration
-  # @liquid_name break
-  # @liquid_summary
-  #   Stops a [`for` loop](/docs/api/liquid/tags/for) from iterating.
-  # @liquid_syntax
-  #   {% break %}
  class Break < Tag
    INTERRUPT = BreakInterrupt.new.freeze

@@ -1,20 +1,17 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category variable
-  # @liquid_name capture
-  # @liquid_summary
-  #   Creates a new variable with a string value.
-  # @liquid_description
-  #   You can create complex strings with Liquid logic and variables.
-  # @liquid_syntax
-  #   {% capture variable %}
-  #     value
+  # Capture stores the result of a block into a variable without rendering it inplace.
+  #
+  #   {% capture heading %}
+  #     Monkeys!
  #   {% endcapture %}
-  # @liquid_syntax_keyword variable The name of the variable being created.
-  # @liquid_syntax_keyword value The value you want to assign to the variable.
+  #   ...
+  #   <h1>{{ heading }}</h1>
+  #
+  # Capture is useful for saving content for use later in your template, such as
+  # in a sidebar or footer.
+  #
  class Capture < Block
    Syntax = /(#{VariableSignature}+)/o

@@ -1,27 +1,6 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category conditional
-  # @liquid_name case
-  # @liquid_summary
-  #   Renders a specific expression depending on the value of a specific variable.
-  # @liquid_syntax
-  #   {% case variable %}
-  #     {% when first_value %}
-  #       first_expression
-  #     {% when second_value %}
-  #       second_expression
-  #     {% else %}
-  #       third_expression
-  #   {% endcase %}
-  # @liquid_syntax_keyword variable The name of the variable you want to base your case statement on.
-  # @liquid_syntax_keyword first_value A specific value to check for.
-  # @liquid_syntax_keyword second_value A specific value to check for.
-  # @liquid_syntax_keyword first_expression An expression to be rendered when the variable's value matches `first_value`.
-  # @liquid_syntax_keyword second_expression An expression to be rendered when the variable's value matches `second_value`.
-  # @liquid_syntax_keyword third_expression An expression to be rendered when the variable's value has no match.
  class Case < Block
    Syntax     = /(#{QuotedFragment})/o
    WhenSyntax = /(#{QuotedFragment})(?:(?:\s+or\s+|\s*\,\s*)(#{QuotedFragment}.*))?/om
@@ -77,7 +56,7 @@ module Liquid
        end

        result = Liquid::Utils.to_liquid_value(
-          block.evaluate(context),
+          block.evaluate(context)
        )

        if result
@@ -1,20 +1,20 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category syntax
-  # @liquid_name comment
-  # @liquid_summary
-  #   Prevents an expression from being rendered or output.
-  # @liquid_description
-  #   Any text inside `comment` tags won't be output, and any Liquid code will be parsed, but not executed.
-  # @liquid_syntax
-  #   {% comment %}
-  #     content
-  #   {% endcomment %}
-  # @liquid_syntax_keyword content The content of the comment.
  class Comment < Block
+    # Potential fix
+    FullTokenPossiblyInvalid = /\A(.*)#{TagStart}#{WhitespaceControl}?\s*(\w+)\s*(.*)?#{WhitespaceControl}?#{TagEnd}\z/om
+
+    def parse(tokens)
+      while (token = tokens.shift)
+        if token =~ FullTokenPossiblyInvalid && block_delimiter == Regexp.last_match(2)
+          return
+        end
+      end
+
+      raise_tag_never_closed(block_name)
+    end
+
    def render_to_output_buffer(_context, output)
      output
    end
@@ -1,14 +1,15 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category iteration
-  # @liquid_name continue
-  # @liquid_summary
-  #   Causes a [`for` loop](/docs/api/liquid/tags/for) to skip to the next iteration.
-  # @liquid_syntax
-  #   {% continue %}
+  # Continue tag to be used to break out of a for loop.
+  #
+  # == Basic Usage:
+  #    {% for item in collection %}
+  #      {% if item.condition %}
+  #        {% continue %}
+  #      {% endif %}
+  #    {% endfor %}
+  #
  class Continue < Tag
    INTERRUPT = ContinueInterrupt.new.freeze

@@ -1,19 +1,18 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category iteration
-  # @liquid_name cycle
-  # @liquid_summary
-  #   Loops through a group of strings and outputs them one at a time for each iteration of a [`for` loop](/docs/api/liquid/tags/for).
-  # @liquid_description
-  #   The `cycle` tag must be used inside a `for` loop.
+  # Cycle is usually used within a loop to alternate between values, like colors or DOM classes.
+  #
+  #   {% for item in items %}
+  #     <div class="{% cycle 'red', 'green', 'blue' %}"> {{ item }} </div>
+  #   {% end %}
+  #
+  #    <div class="red"> Item one </div>
+  #    <div class="green"> Item two </div>
+  #    <div class="blue"> Item three </div>
+  #    <div class="red"> Item four </div>
+  #    <div class="green"> Item five</div>
  #
-  #   > Tip:
-  #   > Use the `cycle` tag to output text in a predictable pattern. For example, to apply odd/even classes to rows in a table.
-  # @liquid_syntax
-  #   {% cycle string, string, ... %}
  class Cycle < Tag
    SimpleSyntax = /\A#{QuotedFragment}+/o
    NamedSyntax  = /\A(#{QuotedFragment})\s*\:\s*(.*)/om
@@ -1,36 +1,34 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category variable
-  # @liquid_name decrement
-  # @liquid_summary
-  #   Creates a new variable, with a default value of -1, that's decreased by 1 with each subsequent call.
-  # @liquid_description
-  #   Variables that are declared with `decrement` are unique to the [layout](/themes/architecture/layouts), [template](/themes/architecture/templates),
-  #   or [section](/themes/architecture/sections) file that they're created in. However, the variable is shared across
-  #   [snippets](/themes/architecture#snippets) included in the file.
+  # decrement is used in a place where one needs to insert a counter
+  #     into a template, and needs the counter to survive across
+  #     multiple instantiations of the template.
+  #     NOTE: decrement is a pre-decrement, --i,
+  #           while increment is post:      i++.
  #
-  #   Similarly, variables that are created with `decrement` are independent from those created with [`assign`](/docs/api/liquid/tags/assign)
-  #   and [`capture`](/docs/api/liquid/tags/capture). However, `decrement` and [`increment`](/docs/api/liquid/tags/increment) share
-  #   variables.
-  # @liquid_syntax
-  #   {% decrement variable_name %}
-  # @liquid_syntax_keyword variable_name The name of the variable being decremented.
-  class Decrement < Tag
-    attr_reader :variable_name
+  #     (To achieve the survival, the application must keep the context)
+  #
+  #     if the variable does not exist, it is created with value 0.

+  #   Hello: {% decrement variable %}
+  #
+  # gives you:
+  #
+  #    Hello: -1
+  #    Hello: -2
+  #    Hello: -3
+  #
+  class Decrement < Tag
    def initialize(tag_name, markup, options)
      super
-      @variable_name = markup.strip
+      @variable = markup.strip
    end

    def render_to_output_buffer(context, output)
-      counter_environment = context.environments.first
-      value = counter_environment[@variable_name] || 0
+      value = context.environments.first[@variable] ||= 0
      value -= 1
-      counter_environment[@variable_name] = value
+      context.environments.first[@variable] = value
      output << value.to_s
      output
    end
@@ -1,36 +1,33 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category syntax
-  # @liquid_name echo
-  # @liquid_summary
-  #   Outputs an expression.
-  # @liquid_description
-  #   Using the `echo` tag is the same as wrapping an expression in curly brackets (`{{` and `}}`). However, unlike the curly
-  #   bracket method, you can use the `echo` tag inside [`liquid` tags](/docs/api/liquid/tags/liquid).
+  # Echo outputs an expression
+  #
+  #   {% echo monkey %}
+  #   {% echo user.name %}
+  #
+  # This is identical to variable output syntax, like {{ foo }}, but works
+  # inside {% liquid %} tags. The full syntax is supported, including filters:
+  #
+  #   {% echo user | link %}
  #
-  #   > Tip:
-  #   > You can use [filters](/docs/api/liquid/filters) on expressions inside `echo` tags.
-  # @liquid_syntax
-  #   {% liquid
-  #     echo expression
-  #   %}
-  # @liquid_syntax_keyword expression The expression to be output.
  class Echo < Tag
    attr_reader :variable

    def initialize(tag_name, markup, parse_context)
+      puts "Initializing Echo tag"
      super
      @variable = Variable.new(markup, parse_context)
    end

    def render(context)
+      puts "Render Echo tag"
      @variable.render_to_output_buffer(context, +'')
    end

    class ParseTreeVisitor < Liquid::ParseTreeVisitor
+      puts "ParseTreeVisitor Echo tag"
+
      def children
        [@node.variable]
      end
@@ -1,29 +1,50 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category iteration
-  # @liquid_name for
-  # @liquid_summary
-  #   Renders an expression for every item in an array.
-  # @liquid_description
-  #   You can do a maximum of 50 iterations with a `for` loop. If you need to iterate over more than 50 items, then use the
-  #   [`paginate` tag](/docs/api/liquid/tags/paginate) to split the items over multiple pages.
+  # "For" iterates over an array or collection.
+  # Several useful variables are available to you within the loop.
+  #
+  # == Basic usage:
+  #    {% for item in collection %}
+  #      {{ forloop.index }}: {{ item.name }}
+  #    {% endfor %}
+  #
+  # == Advanced usage:
+  #    {% for item in collection %}
+  #      <div {% if forloop.first %}class="first"{% endif %}>
+  #        Item {{ forloop.index }}: {{ item.name }}
+  #      </div>
+  #    {% else %}
+  #      There is nothing in the collection.
+  #    {% endfor %}
+  #
+  # You can also define a limit and offset much like SQL.  Remember
+  # that offset starts at 0 for the first item.
+  #
+  #    {% for item in collection limit:5 offset:10 %}
+  #      {{ item.name }}
+  #    {% end %}
+  #
+  #  To reverse the for loop simply use {% for item in collection reversed %} (note that the flag's spelling is different to the filter `reverse`)
+  #
+  # == Available variables:
+  #
+  # forloop.name:: 'item-collection'
+  # forloop.length:: Length of the loop
+  # forloop.index:: The current item's position in the collection;
+  #                 forloop.index starts at 1.
+  #                 This is helpful for non-programmers who start believe
+  #                 the first item in an array is 1, not 0.
+  # forloop.index0:: The current item's position in the collection
+  #                  where the first item is 0
+  # forloop.rindex:: Number of items remaining in the loop
+  #                  (length - index) where 1 is the last item.
+  # forloop.rindex0:: Number of items remaining in the loop
+  #                   where 0 is the last item.
+  # forloop.first:: Returns true if the item is the first item.
+  # forloop.last:: Returns true if the item is the last item.
+  # forloop.parentloop:: Provides access to the parent loop, if present.
  #
-  #   > Tip:
-  #   > Every `for` loop has an associated [`forloop` object](/docs/api/liquid/objects/forloop) with information about the loop.
-  # @liquid_syntax
-  #   {% for variable in array %}
-  #     expression
-  #   {% endfor %}
-  # @liquid_syntax_keyword variable The current item in the array.
-  # @liquid_syntax_keyword array The array to iterate over.
-  # @liquid_syntax_keyword expression The expression to render for each iteration.
-  # @liquid_optional_param limit [number] The number of iterations to perform.
-  # @liquid_optional_param offset [number] The 1-based index to start iterating at.
-  # @liquid_optional_param range [untyped] A custom numeric range to iterate over.
-  # @liquid_optional_param reversed [untyped] Iterate in reverse order.
  class For < Block
    Syntax = /\A(#{VariableSegment}+)\s+in\s+(#{QuotedFragment}+)\s*(reversed)?/o

@@ -98,12 +119,11 @@ module Liquid
      @name     = "#{@variable_name}-#{collection_name}"
      @reversed = p.id?('reversed')

-      while p.look(:comma) || p.look(:id)
-        p.consume?(:comma)
+      while p.look(:id) && p.look(:colon, 1)
        unless (attribute = p.id?('limit') || p.id?('offset'))
          raise SyntaxError, options[:locale].t("errors.syntax.for_invalid_attribute")
        end
-        p.consume(:colon)
+        p.consume
        set_attribute(attribute, p.expression)
      end
      p.consume(:end_of_string)
@@ -178,6 +198,7 @@ module Liquid
      case key
      when 'offset'
        @from = if expr == 'continue'
+          Usage.increment('for_offset_continue')
          :continue
        else
          parse_expression(expr)
@@ -1,18 +1,16 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category conditional
-  # @liquid_name if
-  # @liquid_summary
-  #   Renders an expression if a specific condition is `true`.
-  # @liquid_syntax
-  #   {% if condition %}
-  #     expression
+  # If is the conditional block
+  #
+  #   {% if user.admin %}
+  #     Admin user!
+  #   {% else %}
+  #     Not admin user
  #   {% endif %}
-  # @liquid_syntax_keyword condition The condition to evaluate.
-  # @liquid_syntax_keyword expression The expression to render if the condition is met.
+  #
+  #    There are {% if count < 5 %} less {% else %} more {% endif %} items than you need.
+  #
  class If < Block
    Syntax                  = /(#{QuotedFragment})\s*([=!<>a-z_]+)?\s*(#{QuotedFragment})?/o
    ExpressionsAndOperators = /(?:\b(?:\s?and\s?|\s?or\s?)\b|(?:\s*(?!\b(?:\s?and\s?|\s?or\s?)\b)(?:#{QuotedFragment}|\S+)\s*)+)/o
@@ -53,7 +51,7 @@ module Liquid
    def render_to_output_buffer(context, output)
      @blocks.each do |block|
        result = Liquid::Utils.to_liquid_value(
-          block.evaluate(context),
+          block.evaluate(context)
        )

        if result
@@ -1,22 +1,20 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category theme
-  # @liquid_name include
-  # @liquid_summary
-  #   Renders a [snippet](/themes/architecture#snippets).
-  # @liquid_description
-  #   Inside the snippet, you can access and alter variables that are [created](/docs/api/liquid/tags/variable-tags) outside of the
-  #   snippet.
-  # @liquid_syntax
-  #   {% include 'filename' %}
-  # @liquid_syntax_keyword filename The name of the snippet to render, without the `.liquid` extension.
-  # @liquid_deprecated
-  #   Deprecated because the way that variables are handled reduces performance and makes code harder to both read and maintain.
+  # Include allows templates to relate with other templates
+  #
+  # Simply include another template:
+  #
+  #   {% include 'product' %}
+  #
+  # Include a template with a local variable:
+  #
+  #   {% include 'product' with products[0] %}
+  #
+  # Include a template for a collection:
+  #
+  #   {% include 'product' for products %}
  #
-  #   The `include` tag has been replaced by [`render`](/docs/api/liquid/tags/render).
  class Include < Tag
    prepend Tag::Disableable

@@ -52,12 +50,12 @@ module Liquid

    def render_to_output_buffer(context, output)
      template_name = context.evaluate(@template_name_expr)
-      raise ArgumentError, options[:locale].t("errors.argument.include") unless template_name.is_a?(String)
+      raise ArgumentError, options[:locale].t("errors.argument.include") unless template_name

      partial = PartialCache.load(
        template_name,
        context: context,
-        parse_context: parse_context,
+        parse_context: parse_context
      )

      context_variable_name = @alias_name || template_name.split('/').last
@@ -70,11 +68,9 @@ module Liquid

      old_template_name = context.template_name
      old_partial       = context.partial
-
      begin
-        context.template_name = partial.name
-        context.partial = true
-
+        context.template_name = template_name
+        context.partial       = true
        context.stack do
          @attributes.each do |key, value|
            context[key] = context.evaluate(value)
@@ -1,35 +1,30 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category variable
-  # @liquid_name increment
-  # @liquid_summary
-  #   Creates a new variable, with a default value of 0, that's increased by 1 with each subsequent call.
-  # @liquid_description
-  #   Variables that are declared with `increment` are unique to the [layout](/themes/architecture/layouts), [template](/themes/architecture/templates),
-  #   or [section](/themes/architecture/sections) file that they're created in. However, the variable is shared across
-  #   [snippets](/themes/architecture#snippets) included in the file.
+  # increment is used in a place where one needs to insert a counter
+  #     into a template, and needs the counter to survive across
+  #     multiple instantiations of the template.
+  #     (To achieve the survival, the application must keep the context)
+  #
+  #     if the variable does not exist, it is created with value 0.
+  #
+  #   Hello: {% increment variable %}
+  #
+  # gives you:
+  #
+  #    Hello: 0
+  #    Hello: 1
+  #    Hello: 2
  #
-  #   Similarly, variables that are created with `increment` are independent from those created with [`assign`](/docs/api/liquid/tags/assign)
-  #   and [`capture`](/docs/api/liquid/tags/capture). However, `increment` and [`decrement`](/docs/api/liquid/tags/decrement) share
-  #   variables.
-  # @liquid_syntax
-  #   {% increment variable_name %}
-  # @liquid_syntax_keyword variable_name The name of the variable being incremented.
  class Increment < Tag
-    attr_reader :variable_name
-
    def initialize(tag_name, markup, options)
      super
-      @variable_name = markup.strip
+      @variable = markup.strip
    end

    def render_to_output_buffer(context, output)
-      counter_environment = context.environments.first
-      value = counter_environment[@variable_name] || 0
-      counter_environment[@variable_name] = value + 1
+      value = context.environments.first[@variable] ||= 0
+      context.environments.first[@variable] = value + 1

      output << value.to_s
      output
@@ -1,30 +0,0 @@
-# frozen_string_literal: true
-
-module Liquid
-  class InlineComment < Tag
-    def initialize(tag_name, markup, options)
-      super
-
-      # Semantically, a comment should only ignore everything after it on the line.
-      # Currently, this implementation doesn't support mixing a comment with another tag
-      # but we need to reserve future support for this and prevent the introduction
-      # of inline comments from being backward incompatible change.
-      #
-      # As such, we're forcing users to put a # symbol on every line otherwise this
-      # tag will throw an error.
-      if markup.match?(/\n\s*[^#\s]/)
-        raise SyntaxError, options[:locale].t("errors.syntax.inline_comment_invalid")
-      end
-    end
-
-    def render_to_output_buffer(_context, output)
-      output
-    end
-
-    def blank?
-      true
-    end
-  end
-
-  Template.register_tag('#', InlineComment)
-end
@@ -1,20 +1,9 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category syntax
-  # @liquid_name raw
-  # @liquid_summary
-  #   Outputs any Liquid code as text instead of rendering it.
-  # @liquid_syntax
-  #   {% raw %}
-  #     expression
-  #   {% endraw %}
-  # @liquid_syntax_keyword expression The expression to be output without being rendered.
  class Raw < Block
    Syntax = /\A\s*\z/
-    FullTokenPossiblyInvalid = /\A(.*)#{TagStart}#{WhitespaceControl}?\s*(\w+)\s*(.*)?#{WhitespaceControl}?#{TagEnd}\z/om
+    FullTokenPossiblyInvalid = /\A(.*)#{TagStart}\s*(\w+)\s*(.*)?#{TagEnd}\z/om

    def initialize(tag_name, markup, parse_context)
      super
@@ -26,7 +15,6 @@ module Liquid
      @body = +''
      while (token = tokens.shift)
        if token =~ FullTokenPossiblyInvalid && block_delimiter == Regexp.last_match(2)
-          parse_context.trim_whitespace = (token[-3] == WhitespaceControl)
          @body << Regexp.last_match(1) if Regexp.last_match(1) != ""
          return
        end
@@ -1,37 +1,13 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category theme
-  # @liquid_name render
-  # @liquid_summary
-  #   Renders a [snippet](/themes/architecture#snippets) or [app block](/themes/architecture/sections/section-schema#render-app-blocks).
-  # @liquid_description
-  #   Inside snippets and app blocks, you can't directly access variables that are [created](/docs/api/liquid/tags/variable-tags) outside
-  #   of the snippet or app block. However, you can [specify variables as parameters](/docs/api/liquid/tags/render#render-passing-variables-to-a-snippet)
-  #   to pass outside variables to snippets.
-  #
-  #   While you can't directly access created variables, you can access global objects, as well as any objects that are
-  #   directly accessible outside the snippet or app block. For example, a snippet or app block inside the [product template](/themes/architecture/templates/product)
-  #   can access the [`product` object](/docs/api/liquid/objects/product), and a snippet or app block inside a [section](/themes/architecture/sections)
-  #   can access the [`section` object](/docs/api/liquid/objects/section).
-  #
-  #   Outside a snippet or app block, you can't access variables created inside the snippet or app block.
-  #
-  #   > Note:
-  #   > When you render a snippet using the `render` tag, you can't use the [`include` tag](/docs/api/liquid/tags/include)
-  #   > inside the snippet.
-  # @liquid_syntax
-  #   {% render 'filename' %}
-  # @liquid_syntax_keyword filename The name of the snippet to render, without the `.liquid` extension.
  class Render < Tag
    FOR = 'for'
    SYNTAX = /(#{QuotedString}+)(\s+(with|#{FOR})\s+(#{QuotedFragment}+))?(\s+(?:as)\s+(#{VariableSegment}+))?/o

    disable_tags "include"

-    attr_reader :template_name_expr, :variable_name_expr, :attributes, :alias_name
+    attr_reader :template_name_expr, :attributes

    def initialize(tag_name, markup, options)
      super
@@ -45,7 +21,7 @@ module Liquid
      @alias_name = Regexp.last_match(6)
      @variable_name_expr = variable_name ? parse_expression(variable_name) : nil
      @template_name_expr = parse_expression(template_name)
-      @is_for_loop = (with_or_for == FOR)
+      @for = (with_or_for == FOR)

      @attributes = {}
      markup.scan(TagAttributes) do |key, value|
@@ -53,30 +29,26 @@ module Liquid
      end
    end

-    def for_loop?
-      @is_for_loop
-    end
-
    def render_to_output_buffer(context, output)
      render_tag(context, output)
    end

    def render_tag(context, output)
-      # The expression should be a String literal, which parses to a String object
-      template_name = @template_name_expr
-      raise ::ArgumentError unless template_name.is_a?(String)
+      # Though we evaluate this here we will only ever parse it as a string literal.
+      template_name = context.evaluate(@template_name_expr)
+      raise ArgumentError, options[:locale].t("errors.argument.include") unless template_name

      partial = PartialCache.load(
        template_name,
        context: context,
-        parse_context: parse_context,
+        parse_context: parse_context
      )

      context_variable_name = @alias_name || template_name.split('/').last

      render_partial_func = ->(var, forloop) {
        inner_context               = context.new_isolated_subcontext
-        inner_context.template_name = partial.name
+        inner_context.template_name = template_name
        inner_context.partial       = true
        inner_context['forloop']    = forloop if forloop

@@ -89,7 +61,7 @@ module Liquid
      }

      variable = @variable_name_expr ? context.evaluate(@variable_name_expr) : nil
-      if @is_for_loop && variable.respond_to?(:each) && variable.respond_to?(:count)
+      if @for && variable.respond_to?(:each) && variable.respond_to?(:count)
        forloop = Liquid::ForloopDrop.new(template_name, variable.count, nil)
        variable.each { |var| render_partial_func.call(var, forloop) }
      else
@@ -103,7 +75,6 @@ module Liquid
      def children
        [
          @node.template_name_expr,
-          @node.variable_name_expr,
        ] + @node.attributes.values
      end
    end
@@ -1,28 +1,6 @@
 # frozen_string_literal: true

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category iteration
-  # @liquid_name tablerow
-  # @liquid_summary
-  #   Generates HTML table rows for every item in an array.
-  # @liquid_description
-  #   The `tablerow` tag must be wrapped in HTML `<table>` and `</table>` tags.
-  #
-  #   > Tip:
-  #   > Every `tablerow` loop has an associated [`tablerowloop` object](/docs/api/liquid/objects/tablerowloop) with information about the loop.
-  # @liquid_syntax
-  #   {% tablerow variable in array %}
-  #     expression
-  #   {% endtablerow %}
-  # @liquid_syntax_keyword variable The current item in the array.
-  # @liquid_syntax_keyword array The array to iterate over.
-  # @liquid_syntax_keyword expression The expression to render.
-  # @liquid_optional_param cols [number] The number of columns that the table should have.
-  # @liquid_optional_param limit [number] The number of iterations to perform.
-  # @liquid_optional_param offset [number] The 1-based index to start iterating at.
-  # @liquid_optional_param range [untyped] A custom numeric range to iterate over.
  class TableRow < Block
    Syntax = /(\w+)\s+in\s+(#{QuotedFragment}+)/o

@@ -45,13 +23,13 @@ module Liquid
    def render_to_output_buffer(context, output)
      (collection = context.evaluate(@collection_name)) || (return '')

-      from = @attributes.key?('offset') ? to_integer(context.evaluate(@attributes['offset'])) : 0
-      to = @attributes.key?('limit') ? from + to_integer(context.evaluate(@attributes['limit'])) : nil
+      from = @attributes.key?('offset') ? context.evaluate(@attributes['offset']).to_i : 0
+      to   = @attributes.key?('limit')  ? from + context.evaluate(@attributes['limit']).to_i : nil

      collection = Utils.slice_collection(collection, from, to)
      length     = collection.length

-      cols = @attributes.key?('cols') ? to_integer(context.evaluate(@attributes['cols'])) : length
+      cols = context.evaluate(@attributes['cols']).to_i

      output << "<tr class=\"row1\">\n"
      context.stack do
@@ -82,14 +60,6 @@ module Liquid
        super + @node.attributes.values + [@node.collection_name]
      end
    end
-
-    private
-
-    def to_integer(value)
-      value.to_i
-    rescue NoMethodError
-      raise Liquid::ArgumentError, "invalid integer"
-    end
  end

  Template.register_tag('tablerow', TableRow)
@@ -3,27 +3,16 @@
 require_relative 'if'

 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category conditional
-  # @liquid_name unless
-  # @liquid_summary
-  #   Renders an expression unless a specific condition is `true`.
-  # @liquid_description
-  #   > Tip:
-  #   > Similar to the [`if` tag](/docs/api/liquid/tags/if), you can use `elsif` to add more conditions to an `unless` tag.
-  # @liquid_syntax
-  #   {% unless condition %}
-  #     expression
-  #   {% endunless %}
-  # @liquid_syntax_keyword condition The condition to evaluate.
-  # @liquid_syntax_keyword expression The expression to render unless the condition is met.
+  # Unless is a conditional just like 'if' but works on the inverse logic.
+  #
+  #   {% unless x < 0 %} x is greater than zero {% endunless %}
+  #
  class Unless < If
    def render_to_output_buffer(context, output)
      # First condition is interpreted backwards ( if not )
      first_block = @blocks.first
      result = Liquid::Utils.to_liquid_value(
-        first_block.evaluate(context),
+        first_block.evaluate(context)
      )

      unless result
@@ -33,7 +22,7 @@ module Liquid
      # After the first condition unless works just like if
      @blocks[1..-1].each do |block|
        result = Liquid::Utils.to_liquid_value(
-          block.evaluate(context),
+          block.evaluate(context)
        )

        if result
@@ -15,7 +15,7 @@ module Liquid
  #   template.render('user_name' => 'bob')
  #
  class Template
-    attr_accessor :root, :name
+    attr_accessor :root
    attr_reader :resource_limits, :warnings

    class TagRegistry
@@ -167,14 +167,15 @@ module Liquid

      output = nil

+      context_register = context.registers.is_a?(StaticRegisters) ? context.registers.static : context.registers
+
      case args.last
      when Hash
        options = args.pop
        output  = options[:output] if options[:output]
-        static_registers = context.registers.static

        options[:registers]&.each do |key, register|
-          static_registers[key] = register
+          context_register[key] = register
        end

        apply_options_to_context(context, options)
@@ -189,8 +190,6 @@ module Liquid
        @profiler = context.profiler = Liquid::Profiler.new
      end

-      context.template_name ||= name
-
      begin
        # render the nodelist.
        @root.render_to_output_buffer(context, output || +'')
@@ -8,15 +8,11 @@ module Liquid
      @source         = source.to_s.to_str
      @line_number    = line_number || (line_numbers ? 1 : nil)
      @for_liquid_tag = for_liquid_tag
-      @offset         = 0
      @tokens         = tokenize
    end

    def shift
-      token = @tokens[@offset]
-      return nil unless token
-
-      @offset += 1
+      (token = @tokens.shift) || return

      if @line_number
        @line_number += @for_liquid_tag ? 1 : token.count("\n")
@@ -35,9 +31,7 @@ module Liquid
      tokens = @source.split(TemplateParser)

      # removes the rogue empty element at the beginning of the array
-      if tokens[0]&.empty?
-        @offset += 1
-      end
+      tokens.shift if tokens[0]&.empty?

      tokens
    end
@@ -47,7 +47,7 @@ module Liquid

      name_markup   = Regexp.last_match(1)
      filter_markup = Regexp.last_match(2)
-      @name         = parse_context.parse_expression(name_markup)
+      @name         = Expression.parse(name_markup)
      if filter_markup =~ FilterMarkupRegex
        filters = Regexp.last_match(1).scan(FilterParser)
        filters.each do |f|
@@ -65,7 +65,7 @@ module Liquid

      return if p.look(:end_of_string)

-      @name = parse_context.parse_expression(p.expression)
+      @name = Expression.parse(p.expression)
      while p.consume?(:pipe)
        filtername = p.consume(:id)
        filterargs = p.consume?(:colon) ? parse_filterargs(p) : []
@@ -122,9 +122,9 @@ module Liquid
      unparsed_args.each do |a|
        if (matches = a.match(JustTagAttributes))
          keyword_args           ||= {}
-          keyword_args[matches[1]] = parse_context.parse_expression(matches[2])
+          keyword_args[matches[1]] = Expression.parse(matches[2])
        else
-          filter_args << parse_context.parse_expression(a)
+          filter_args << Expression.parse(a)
        end
      end
      result = [filter_name, filter_args]
@@ -2,7 +2,8 @@

 module Liquid
  class VariableLookup
-    COMMAND_METHODS = ['size', 'first', 'last'].freeze
+    SQUARE_BRACKETED = /\A\[(.*)\]\z/m
+    COMMAND_METHODS  = ['size', 'first', 'last'].freeze

    attr_reader :name, :lookups

@@ -14,8 +15,8 @@ module Liquid
      lookups = markup.scan(VariableParser)

      name = lookups.shift
-      if name&.start_with?('[') && name&.end_with?(']')
-        name = Expression.parse(name[1..-2])
+      if name =~ SQUARE_BRACKETED
+        name = Expression.parse(Regexp.last_match(1))
      end
      @name = name

@@ -24,18 +25,14 @@ module Liquid

      @lookups.each_index do |i|
        lookup = lookups[i]
-        if lookup&.start_with?('[') && lookup&.end_with?(']')
-          lookups[i] = Expression.parse(lookup[1..-2])
+        if lookup =~ SQUARE_BRACKETED
+          lookups[i] = Expression.parse(Regexp.last_match(1))
        elsif COMMAND_METHODS.include?(lookup)
          @command_flags |= 1 << i
        end
      end
    end

-    def lookup_command?(lookup_index)
-      @command_flags & (1 << lookup_index) != 0
-    end
-
    def evaluate(context)
      name   = context.evaluate(@name)
      object = context.find_variable(name)
@@ -59,7 +56,7 @@ module Liquid
          # Some special cases. If the part wasn't in square brackets and
          # no key with the same name was found we interpret following calls
          # as commands and call them on the current object
-        elsif lookup_command?(i) && object.respond_to?(key)
+        elsif @command_flags & (1 << i) != 0 && object.respond_to?(key)
          object = object.send(key).to_liquid

          # No key was present with the desired value and it wasn't one of the directly supported
@@ -2,5 +2,5 @@
 # frozen_string_literal: true

 module Liquid
-  VERSION = "5.4.0"
+  VERSION = "5.1.0"
 end
@@ -17,12 +17,13 @@ Gem::Specification.new do |s|
  s.license     = "MIT"
  # s.description = "A secure, non-evaling end user template engine with aesthetic markup."

-  s.required_ruby_version     = ">= 2.7.0"
+  s.required_ruby_version     = ">= 2.5.0"
  s.required_rubygems_version = ">= 1.3.7"

  s.metadata['allowed_push_host'] = 'https://rubygems.org'

-  s.files = Dir.glob("{lib}/**/*") + %w(LICENSE README.md)
+  s.test_files  = Dir.glob("{test}/**/*")
+  s.files       = Dir.glob("{lib}/**/*") + %w(LICENSE README.md)

  s.extra_rdoc_files = ["History.md", "README.md"]

@@ -49,3 +49,8 @@ module Database
    end
  end
 end
+
+if __FILE__ == $PROGRAM_NAME
+  p(Database.tables['collections']['frontpage'].keys)
+  # p Database.tables['blog']['articles']
+end
@@ -45,8 +45,8 @@ class Paginate < Liquid::Block

      pagination['items']      = collection_size
      pagination['pages']      = page_count - 1
-      pagination['previous']   = link('&laquo; Previous', current_page - 1)  if 1 < current_page
-      pagination['next']       = link('Next &raquo;', current_page + 1)      if page_count > current_page + 1
+      pagination['previous']   = link('&laquo; Previous', current_page - 1)  unless 1 >= current_page
+      pagination['next']       = link('Next &raquo;', current_page + 1)      unless page_count <= current_page + 1
      pagination['parts']      = []

      hellip_break = false
@@ -3,7 +3,7 @@
 # This profiler run simulates Shopify.
 # We are looking in the tests directory for liquid files and render them within the designated layout file.
 # We will also export a substantial database to liquid which the templates can render values of.
-# All this is to make the benchmark as non synthetic as possible. All templates and tests are lifted from
+# All this is to make the benchmark as non syntetic as possible. All templates and tests are lifted from
 # direct real-world usage and the profiler measures code that looks very similar to the way it looks in
 # Shopify which is likely the biggest user of liquid in the world which something to the tune of several
 # million Template#render calls a day.
@@ -6,51 +6,51 @@ class AssignTest < Minitest::Test
  include Liquid

  def test_assign_with_hyphen_in_variable_name
-    template_source = <<~END_TEMPLATE
-      {% assign this-thing = 'Print this-thing' -%}
-      {{ this-thing -}}
+    template_source = <<-END_TEMPLATE
+    {% assign this-thing = 'Print this-thing' %}
+    {{ this-thing }}
    END_TEMPLATE
-    assert_template_result("Print this-thing", template_source)
+    template        = Template.parse(template_source)
+    rendered        = template.render!
+    assert_equal("Print this-thing", rendered.strip)
  end

  def test_assigned_variable
-    assert_template_result(
-      '.foo.',
+    assert_template_result('.foo.',
      '{% assign foo = values %}.{{ foo[0] }}.',
-      { 'values' => %w(foo bar baz) },
-    )
+      'values' => %w(foo bar baz))

-    assert_template_result(
-      '.bar.',
+    assert_template_result('.bar.',
      '{% assign foo = values %}.{{ foo[1] }}.',
-      { 'values' => %w(foo bar baz) },
-    )
+      'values' => %w(foo bar baz))
  end

  def test_assign_with_filter
-    assert_template_result(
-      '.bar.',
+    assert_template_result('.bar.',
      '{% assign foo = values | split: "," %}.{{ foo[1] }}.',
-      { 'values' => "foo,bar,baz" },
-    )
+      'values' => "foo,bar,baz")
  end

  def test_assign_syntax_error
-    assert_match_syntax_error(/assign/, '{% assign foo not values %}.')
+    assert_match_syntax_error(/assign/,
+      '{% assign foo not values %}.',
+      'values' => "foo,bar,baz")
  end

  def test_assign_uses_error_mode
-    assert_match_syntax_error(
-      "Expected dotdot but found pipe in ",
-      "{% assign foo = ('X' | downcase) %}",
-      error_mode: :strict,
-    )
-    assert_template_result("", "{% assign foo = ('X' | downcase) %}", error_mode: :lax)
+    with_error_mode(:strict) do
+      assert_raises(SyntaxError) do
+        Template.parse("{% assign foo = ('X' | downcase) %}")
+      end
+    end
+    with_error_mode(:lax) do
+      assert(Template.parse("{% assign foo = ('X' | downcase) %}"))
+    end
  end

  def test_expression_with_whitespace_in_square_brackets
    source = "{% assign r = a[ 'b' ] %}{{ r }}"
-    assert_template_result('result', source, { 'a' => { 'b' => 'result' } })
+    assert_template_result('result', source, 'a' => { 'b' => 'result' })
  end

  def test_assign_score_exceeding_resource_limit
@@ -9,6 +9,12 @@ class FoobarTag < Liquid::Tag
  end
 end

+class BlankTestFileSystem
+  def read_template_file(template_path)
+    template_path
+  end
+end
+
 class BlankTest < Minitest::Test
  include Liquid
  N = 10
@@ -27,7 +33,7 @@ class BlankTest < Minitest::Test

  def test_new_tags_are_not_blank_by_default
    with_custom_tag('foobar', FoobarTag) do
-      assert_equal(" " * N, Liquid::Template.parse(wrap_in_for("{% foobar %}")).render!)
+      assert_template_result(" " * N, wrap_in_for("{% foobar %}"))
    end
  end

@@ -57,11 +63,9 @@ class BlankTest < Minitest::Test

  def test_nested_blocks_are_blank_but_only_if_all_children_are
    assert_template_result("", wrap(wrap(" ")))
-    assert_template_result(
-      "\n       but this is not " * (N + 1),
+    assert_template_result("\n       but this is not " * (N + 1),
      wrap('{% if true %} {% comment %} this is blank {% endcomment %} {% endif %}
-      {% if true %} but this is not {% endif %}'),
-    )
+      {% if true %} but this is not {% endif %}'))
  end

  def test_assigns_are_blank
@@ -91,21 +95,10 @@ class BlankTest < Minitest::Test
  end

  def test_include_is_blank
-    assert_template_result(
-      "foobar" * (N + 1),
-      wrap("{% include 'foobar' %}"),
-      partials: { 'foobar' => 'foobar' },
-    )
-    assert_template_result(
-      " foobar " * (N + 1),
-      wrap("{% include ' foobar ' %}"),
-      partials: { ' foobar ' => ' foobar ' },
-    )
-    assert_template_result(
-      "   " * (N + 1),
-      wrap(" {% include ' ' %} "),
-      partials: { ' ' => ' ' },
-    )
+    Liquid::Template.file_system = BlankTestFileSystem.new
+    assert_template_result("foobar" * (N + 1), wrap("{% include 'foobar' %}"))
+    assert_template_result(" foobar " * (N + 1), wrap("{% include ' foobar ' %}"))
+    assert_template_result("   " * (N + 1), wrap(" {% include ' ' %} "))
  end

  def test_case_is_blank
@@ -6,8 +6,10 @@ class BlockTest < Minitest::Test
  include Liquid

  def test_unexpected_end_tag
-    source = '{% if true %}{% endunless %}'
-    assert_match_syntax_error("Liquid syntax error (line 1): 'endunless' is not a valid delimiter for if tags. use endif", source)
+    exc = assert_raises(SyntaxError) do
+      Template.parse("{% if true %}{% endunless %}")
+    end
+    assert_equal(exc.message, "Liquid syntax error: 'endunless' is not a valid delimiter for if tags. use endif")
  end

  def test_with_custom_tag
@@ -10,38 +10,44 @@ class CaptureTest < Minitest::Test
  end

  def test_capture_with_hyphen_in_variable_name
-    template_source = <<~END_TEMPLATE
-      {% capture this-thing %}Print this-thing{% endcapture -%}
-      {{ this-thing -}}
+    template_source = <<-END_TEMPLATE
+    {% capture this-thing %}Print this-thing{% endcapture %}
+    {{ this-thing }}
    END_TEMPLATE
-    assert_template_result("Print this-thing", template_source)
+    template        = Template.parse(template_source)
+    rendered        = template.render!
+    assert_equal("Print this-thing", rendered.strip)
  end

  def test_capture_to_variable_from_outer_scope_if_existing
-    template_source = <<~END_TEMPLATE
-      {% assign var = '' -%}
-      {% if true -%}
-        {% capture var %}first-block-string{% endcapture -%}
-      {% endif -%}
-      {% if true -%}
-        {% capture var %}test-string{% endcapture -%}
-      {% endif -%}
-      {{var-}}
+    template_source = <<-END_TEMPLATE
+    {% assign var = '' %}
+    {% if true %}
+    {% capture var %}first-block-string{% endcapture %}
+    {% endif %}
+    {% if true %}
+    {% capture var %}test-string{% endcapture %}
+    {% endif %}
+    {{var}}
    END_TEMPLATE
-    assert_template_result("test-string", template_source)
+    template        = Template.parse(template_source)
+    rendered        = template.render!
+    assert_equal("test-string", rendered.gsub(/\s/, ''))
  end

  def test_assigning_from_capture
-    template_source = <<~END_TEMPLATE
-      {% assign first = '' -%}
-      {% assign second = '' -%}
-      {% for number in (1..3) -%}
-        {% capture first %}{{number}}{% endcapture -%}
-        {% assign second = first -%}
-      {% endfor -%}
-      {{ first }}-{{ second -}}
+    template_source = <<-END_TEMPLATE
+    {% assign first = '' %}
+    {% assign second = '' %}
+    {% for number in (1..3) %}
+    {% capture first %}{{number}}{% endcapture %}
+    {% assign second = first %}
+    {% endfor %}
+    {{ first }}-{{ second }}
    END_TEMPLATE
-    assert_template_result("3-3", template_source)
+    template        = Template.parse(template_source)
+    rendered        = template.render!
+    assert_equal("3-3", rendered.gsub(/\s/, ''))
  end

  def test_increment_assign_score_by_bytes_not_characters
@@ -24,7 +24,7 @@ class ContextSensitiveDrop < Liquid::Drop
  end
 end

-class Category
+class Category < Liquid::Drop
  attr_accessor :name

  def initialize(name)
@@ -36,9 +36,8 @@ class Category
  end
 end

-class CategoryDrop < Liquid::Drop
+class CategoryDrop
  attr_accessor :category, :context
-
  def initialize(category)
    @category = category
  end
@@ -102,7 +101,7 @@ class ContextTest < Minitest::Test
  end

  def test_variables_not_existing
-    assert_template_result("true", "{% if does_not_exist == nil %}true{% endif %}")
+    assert_nil(@context['does_not_exist'])
  end

  def test_scoping
@@ -121,27 +120,22 @@ class ContextTest < Minitest::Test
  end

  def test_length_query
-    assert_template_result(
-      "true",
-      "{% if numbers.size == 4 %}true{% endif %}",
-      { "numbers" => [1, 2, 3, 4] },
-    )
+    @context['numbers'] = [1, 2, 3, 4]

-    assert_template_result(
-      "true",
-      "{% if numbers.size == 4 %}true{% endif %}",
-      { "numbers" => { 1 => 1, 2 => 2, 3 => 3, 4 => 4 } },
-    )
+    assert_equal(4, @context['numbers.size'])

-    assert_template_result(
-      "true",
-      "{% if numbers.size == 1000 %}true{% endif %}",
-      { "numbers" => { 1 => 1, 2 => 2, 3 => 3, 4 => 4, 'size' => 1000 } },
-    )
+    @context['numbers'] = { 1 => 1, 2 => 2, 3 => 3, 4 => 4 }
+
+    assert_equal(4, @context['numbers.size'])
+
+    @context['numbers'] = { 1 => 1, 2 => 2, 3 => 3, 4 => 4, 'size' => 1000 }
+
+    assert_equal(1000, @context['numbers.size'])
  end

  def test_hyphenated_variable
-    assert_template_result("godz", "{{ oh-my }}", { "oh-my" => 'godz' })
+    @context['oh-my'] = 'godz'
+    assert_equal('godz', @context['oh-my'])
  end

  def test_add_filter
@@ -193,24 +187,24 @@ class ContextTest < Minitest::Test
  end

  def test_hierachical_data
-    assigns = { 'hash' => { "name" => 'tobi' } }
-    assert_template_result("tobi", "{{ hash.name }}", assigns)
-    assert_template_result("tobi", '{{ hash["name"] }}', assigns)
+    @context['hash'] = { "name" => 'tobi' }
+    assert_equal('tobi', @context['hash.name'])
+    assert_equal('tobi', @context['hash["name"]'])
  end

  def test_keywords
-    assert_template_result("pass", "{% if true == expect %}pass{% endif %}", { "expect" => true })
-    assert_template_result("pass", "{% if false == expect %}pass{% endif %}", { "expect" => false })
+    assert_equal(true, @context['true'])
+    assert_equal(false, @context['false'])
  end

  def test_digits
-    assert_template_result("pass", "{% if 100 == expect %}pass{% endif %}", { "expect" => 100 })
-    assert_template_result("pass", "{% if 100.00 == expect %}pass{% endif %}", { "expect" => 100.00 })
+    assert_equal(100, @context['100'])
+    assert_equal(100.00, @context['100.00'])
  end

  def test_strings
-    assert_template_result("hello!", '{{ "hello!" }}')
-    assert_template_result("hello!", "{{ 'hello!' }}")
+    assert_equal("hello!", @context['"hello!"'])
+    assert_equal("hello!", @context["'hello!'"])
  end

  def test_merge
@@ -222,92 +216,99 @@ class ContextTest < Minitest::Test
  end

  def test_array_notation
-    assigns = { "test" => ["a", "b"] }
-    assert_template_result("a", "{{ test[0] }}", assigns)
-    assert_template_result("b", "{{ test[1] }}", assigns)
-    assert_template_result("pass", "{% if test[2] == nil %}pass{% endif %}", assigns)
+    @context['test'] = [1, 2, 3, 4, 5]
+
+    assert_equal(1, @context['test[0]'])
+    assert_equal(2, @context['test[1]'])
+    assert_equal(3, @context['test[2]'])
+    assert_equal(4, @context['test[3]'])
+    assert_equal(5, @context['test[4]'])
  end

  def test_recoursive_array_notation
-    assigns = { "test" => { 'test' => [1, 2, 3, 4, 5] } }
-    assert_template_result("1", "{{ test.test[0] }}", assigns)
+    @context['test'] = { 'test' => [1, 2, 3, 4, 5] }

-    assigns = { "test" => [{ 'test' => 'worked' }] }
-    assert_template_result("worked", "{{ test[0].test }}", assigns)
+    assert_equal(1, @context['test.test[0]'])
+
+    @context['test'] = [{ 'test' => 'worked' }]
+
+    assert_equal('worked', @context['test[0].test'])
  end

  def test_hash_to_array_transition
-    assigns = {
-      'colors' => {
-        'Blue' => ['003366', '336699', '6699CC', '99CCFF'],
-        'Green' => ['003300', '336633', '669966', '99CC99'],
-        'Yellow' => ['CC9900', 'FFCC00', 'FFFF99', 'FFFFCC'],
-        'Red' => ['660000', '993333', 'CC6666', 'FF9999'],
-      },
+    @context['colors'] = {
+      'Blue' => ['003366', '336699', '6699CC', '99CCFF'],
+      'Green' => ['003300', '336633', '669966', '99CC99'],
+      'Yellow' => ['CC9900', 'FFCC00', 'FFFF99', 'FFFFCC'],
+      'Red' => ['660000', '993333', 'CC6666', 'FF9999'],
    }

-    assert_template_result("003366", "{{ colors.Blue[0] }}", assigns)
-    assert_template_result("FF9999", "{{ colors.Red[3] }}", assigns)
+    assert_equal('003366', @context['colors.Blue[0]'])
+    assert_equal('FF9999', @context['colors.Red[3]'])
  end

  def test_try_first
-    assigns = { 'test' => [1, 2, 3, 4, 5] }
-    assert_template_result("1", "{{ test.first }}", assigns)
-    assert_template_result("pass", "{% if test.last == 5 %}pass{% endif %}", assigns)
+    @context['test'] = [1, 2, 3, 4, 5]

-    assigns = { "test" => { "test" => [1, 2, 3, 4, 5] } }
-    assert_template_result("1", "{{ test.test.first }}", assigns)
-    assert_template_result("5", "{{ test.test.last }}", assigns)
+    assert_equal(1, @context['test.first'])
+    assert_equal(5, @context['test.last'])

-    assigns = { "test" => [1] }
-    assert_template_result("1", "{{ test.first }}", assigns)
-    assert_template_result("1", "{{ test.last }}", assigns)
+    @context['test'] = { 'test' => [1, 2, 3, 4, 5] }
+
+    assert_equal(1, @context['test.test.first'])
+    assert_equal(5, @context['test.test.last'])
+
+    @context['test'] = [1]
+    assert_equal(1, @context['test.first'])
+    assert_equal(1, @context['test.last'])
  end

  def test_access_hashes_with_hash_notation
-    assigns = { 'products' => { 'count' => 5, 'tags' => ['deepsnow', 'freestyle'] } }
-    assert_template_result("5", '{{ products["count"] }}', assigns)
-    assert_template_result("deepsnow", '{{ products["tags"][0] }}', assigns)
-    assert_template_result("deepsnow", '{{ products["tags"].first }}', assigns)
+    @context['products'] = { 'count' => 5, 'tags' => ['deepsnow', 'freestyle'] }
+    @context['product']  = { 'variants' => [{ 'title' => 'draft151cm' }, { 'title' => 'element151cm' }] }

-    assigns = { 'product' => { 'variants' => [{ 'title' => 'draft151cm' }, { 'title' => 'element151cm' }] } }
-    assert_template_result("draft151cm", '{{ product["variants"][0]["title"] }}', assigns)
-    assert_template_result("element151cm", '{{ product["variants"][1]["title"] }}', assigns)
-    assert_template_result("draft151cm", '{{ product["variants"].first["title"] }}', assigns)
-    assert_template_result("element151cm", '{{ product["variants"].last["title"] }}', assigns)
+    assert_equal(5, @context['products["count"]'])
+    assert_equal('deepsnow', @context['products["tags"][0]'])
+    assert_equal('deepsnow', @context['products["tags"].first'])
+    assert_equal('draft151cm', @context['product["variants"][0]["title"]'])
+    assert_equal('element151cm', @context['product["variants"][1]["title"]'])
+    assert_equal('draft151cm', @context['product["variants"][0]["title"]'])
+    assert_equal('element151cm', @context['product["variants"].last["title"]'])
  end

  def test_access_variable_with_hash_notation
-    assert_template_result('baz', '{{ ["foo"] }}', { "foo" => "baz" })
-    assert_template_result('baz', '{{ [bar] }}', { 'foo' => 'baz', 'bar' => 'foo' })
+    @context['foo'] = 'baz'
+    @context['bar'] = 'foo'
+
+    assert_equal('baz', @context['["foo"]'])
+    assert_equal('baz', @context['[bar]'])
  end

  def test_access_hashes_with_hash_access_variables
-    assigns = {
-      'var' => 'tags',
-      'nested' => { 'var' => 'tags' },
-      'products' => { 'count' => 5, 'tags' => ['deepsnow', 'freestyle'] },
-    }
+    @context['var']      = 'tags'
+    @context['nested']   = { 'var' => 'tags' }
+    @context['products'] = { 'count' => 5, 'tags' => ['deepsnow', 'freestyle'] }

-    assert_template_result('deepsnow', '{{ products[var].first }}', assigns)
-    assert_template_result('freestyle', '{{ products[nested.var].last }}', assigns)
+    assert_equal('deepsnow', @context['products[var].first'])
+    assert_equal('freestyle', @context['products[nested.var].last'])
  end

  def test_hash_notation_only_for_hash_access
-    assigns = { "array" => [1, 2, 3, 4, 5] }
-    assert_template_result("1", "{{ array.first }}", assigns)
-    assert_template_result("pass", '{% if array["first"] == nil %}pass{% endif %}', assigns)
+    @context['array'] = [1, 2, 3, 4, 5]
+    @context['hash']  = { 'first' => 'Hello' }

-    assert_template_result("Hello", '{{ hash["first"] }}', { "hash" => { "first" => "Hello" } })
+    assert_equal(1, @context['array.first'])
+    assert_nil(@context['array["first"]'])
+    assert_equal('Hello', @context['hash["first"]'])
  end

  def test_first_can_appear_in_middle_of_callchain
-    assigns = { "product" => { 'variants' => [{ 'title' => 'draft151cm' }, { 'title' => 'element151cm' }] } }
+    @context['product'] = { 'variants' => [{ 'title' => 'draft151cm' }, { 'title' => 'element151cm' }] }

-    assert_template_result('draft151cm', '{{ product.variants[0].title }}', assigns)
-    assert_template_result('element151cm', '{{ product.variants[1].title }}', assigns)
-    assert_template_result('draft151cm', '{{ product.variants.first.title }}', assigns)
-    assert_template_result('element151cm', '{{ product.variants.last.title }}', assigns)
+    assert_equal('draft151cm', @context['product.variants[0].title'])
+    assert_equal('element151cm', @context['product.variants[1].title'])
+    assert_equal('draft151cm', @context['product.variants.first.title'])
+    assert_equal('element151cm', @context['product.variants.last.title'])
  end

  def test_cents
@@ -349,12 +350,10 @@ class ContextTest < Minitest::Test
  end

  def test_ranges
-    assert_template_result("1..5", '{{ (1..5) }}')
-    assert_template_result("pass", '{% if (1..5) == expect %}pass{% endif %}', { "expect" => (1..5) })
-
-    assigns = { "test" => '5' }
-    assert_template_result("1..5", "{{ (1..test) }}", assigns)
-    assert_template_result("5..5", "{{ (test..test) }}", assigns)
+    @context.merge("test" => '5')
+    assert_equal((1..5), @context['(1..5)'])
+    assert_equal((1..5), @context['(1..test)'])
+    assert_equal((5..5), @context['(test..test)'])
  end

  def test_cents_through_drop_nestedly
@@ -406,45 +405,45 @@ class ContextTest < Minitest::Test
  end

  def test_lambda_is_called_once
-    @global = 0
-
    @context['callcount'] = proc {
-      @global += 1
+      @global ||= 0
+      @global  += 1
      @global.to_s
    }

    assert_equal('1', @context['callcount'])
    assert_equal('1', @context['callcount'])
    assert_equal('1', @context['callcount'])
+
+    @global = nil
  end

  def test_nested_lambda_is_called_once
-    @global = 0
-
-    @context['callcount'] = {
-      "lambda" => proc {
-                    @global += 1
-                    @global.to_s
-                  },
-    }
+    @context['callcount'] = { "lambda" => proc {
+                                            @global ||= 0
+                                            @global  += 1
+                                            @global.to_s
+                                          } }

    assert_equal('1', @context['callcount.lambda'])
    assert_equal('1', @context['callcount.lambda'])
    assert_equal('1', @context['callcount.lambda'])
+
+    @global = nil
  end

  def test_lambda_in_array_is_called_once
-    @global = 0
-
-    p = proc {
-      @global += 1
-      @global.to_s
-    }
-    @context['callcount'] = [1, 2, p, 4, 5]
+    @context['callcount'] = [1, 2, proc {
+                                     @global ||= 0
+                                     @global  += 1
+                                     @global.to_s
+                                   }, 4, 5]

    assert_equal('1', @context['callcount[2]'])
    assert_equal('1', @context['callcount[2]'])
    assert_equal('1', @context['callcount[2]'])
+
+    @global = nil
  end

  def test_access_to_context_from_proc
@@ -487,7 +486,7 @@ class ContextTest < Minitest::Test
  def test_static_environments_are_read_with_lower_priority_than_environments
    context = Context.build(
      static_environments: { 'shadowed' => 'static', 'unshadowed' => 'static' },
-      environments: { 'shadowed' => 'dynamic' },
+      environments: { 'shadowed' => 'dynamic' }
    )

    assert_equal('dynamic', context['shadowed'])
@@ -532,7 +531,7 @@ class ContextTest < Minitest::Test
    registers = {
      my_register: :my_value,
    }
-    super_context = Context.new({}, {}, Registers.new(registers))
+    super_context = Context.new({}, {}, StaticRegisters.new(registers))
    super_context.registers[:my_register] = :my_alt_value
    subcontext                            = super_context.new_isolated_subcontext
    assert_equal(:my_value, subcontext.registers[:my_register])
@@ -621,20 +620,6 @@ class ContextTest < Minitest::Test
    end
  end

-  def test_context_always_uses_static_registers
-    registers = {
-      my_register: :my_value,
-    }
-    c = Context.new({}, {}, registers)
-    assert_instance_of(Registers, c.registers)
-    assert_equal(:my_value, c.registers[:my_register])
-
-    r = Registers.new(registers)
-    c = Context.new({}, {}, r)
-    assert_instance_of(Registers, c.registers)
-    assert_equal(:my_value, c.registers[:my_register])
-  end
-
  private

  def assert_no_object_allocations
@@ -6,12 +6,16 @@ class DocumentTest < Minitest::Test
  include Liquid

  def test_unexpected_outer_tag
-    source = "{% else %}"
-    assert_match_syntax_error("Liquid syntax error (line 1): Unexpected outer 'else' tag", source)
+    exc = assert_raises(SyntaxError) do
+      Template.parse("{% else %}")
+    end
+    assert_equal(exc.message, "Liquid syntax error: Unexpected outer 'else' tag")
  end

  def test_unknown_tag
-    source = "{% foo %}"
-    assert_match_syntax_error("Liquid syntax error (line 1): Unknown tag 'foo'", source)
+    exc = assert_raises(SyntaxError) do
+      Template.parse("{% foo %}")
+    end
+    assert_equal(exc.message, "Liquid syntax error: Unknown tag 'foo'")
  end
 end
@@ -63,7 +63,9 @@ class ErrorHandlingTest < Minitest::Test
  end

  def test_missing_endtag_parse_time_error
-    assert_match_syntax_error(/: 'for' tag was never closed\z/, ' {% for a in b %} ... ')
+    assert_raises(Liquid::SyntaxError) do
+      Liquid::Template.parse(' {% for a in b %} ... ')
+    end
  end

  def test_unrecognized_operator
@@ -82,31 +84,37 @@ class ErrorHandlingTest < Minitest::Test
  end

  def test_with_line_numbers_adds_numbers_to_parser_errors
-    source = <<~LIQUID
-      foobar
+    err = assert_raises(SyntaxError) do
+      Liquid::Template.parse('
+          foobar

-      {% "cat" | foobar %}
+          {% "cat" | foobar %}

-      bla
-    LIQUID
-    assert_match_syntax_error(/Liquid syntax error \(line 3\)/, source)
+          bla
+        ',
+        line_numbers: true)
+    end
+
+    assert_match(/Liquid syntax error \(line 4\)/, err.message)
  end

  def test_with_line_numbers_adds_numbers_to_parser_errors_with_whitespace_trim
-    source = <<~LIQUID
-      foobar
+    err = assert_raises(SyntaxError) do
+      Liquid::Template.parse('
+          foobar

-      {%- "cat" | foobar -%}
+          {%- "cat" | foobar -%}

-      bla
-    LIQUID
+          bla
+        ',
+        line_numbers: true)
+    end

-    assert_match_syntax_error(/Liquid syntax error \(line 3\)/, source)
+    assert_match(/Liquid syntax error \(line 4\)/, err.message)
  end

  def test_parsing_warn_with_line_numbers_adds_numbers_to_lexer_errors
-    template = Liquid::Template.parse(
-      '
+    template = Liquid::Template.parse('
        foobar

        {% if 1 =! 2 %}ok{% endif %}
@@ -114,19 +122,15 @@ class ErrorHandlingTest < Minitest::Test
        bla
            ',
      error_mode: :warn,
-      line_numbers: true,
-    )
+      line_numbers: true)

-    assert_equal(
-      ['Liquid syntax error (line 4): Unexpected character = in "1 =! 2"'],
-      template.warnings.map(&:message),
-    )
+    assert_equal(['Liquid syntax error (line 4): Unexpected character = in "1 =! 2"'],
+      template.warnings.map(&:message))
  end

  def test_parsing_strict_with_line_numbers_adds_numbers_to_lexer_errors
    err = assert_raises(SyntaxError) do
-      Liquid::Template.parse(
-        '
+      Liquid::Template.parse('
          foobar

          {% if 1 =! 2 %}ok{% endif %}
@@ -134,25 +138,27 @@ class ErrorHandlingTest < Minitest::Test
          bla
                ',
        error_mode: :strict,
-        line_numbers: true,
-      )
+        line_numbers: true)
    end

    assert_equal('Liquid syntax error (line 4): Unexpected character = in "1 =! 2"', err.message)
  end

  def test_syntax_errors_in_nested_blocks_have_correct_line_number
-    source = <<~LIQUID
-      foobar
+    err = assert_raises(SyntaxError) do
+      Liquid::Template.parse('
+          foobar

-      {% if 1 != 2 %}
-        {% foo %}
-      {% endif %}
+          {% if 1 != 2 %}
+            {% foo %}
+          {% endif %}

-      bla
-    LIQUID
+          bla
+                ',
+        line_numbers: true)
+    end

-    assert_match_syntax_error("Liquid syntax error (line 4): Unknown tag 'foo'", source)
+    assert_equal("Liquid syntax error (line 5): Unknown tag 'foo'", err.message)
  end

  def test_strict_error_messages
@@ -263,81 +269,4 @@ class ErrorHandlingTest < Minitest::Test
    output = Liquid::Template.parse("{% assign x = 0 %}{% if 1 < '2' %}{% assign x = 3 %}{% endif %}{{ x }}").render
    assert_equal("0", output)
  end
-
-  def test_syntax_error_is_raised_with_template_name
-    file_system = StubFileSystem.new("snippet" => "1\n2\n{{ 1")
-
-    context = Liquid::Context.build(
-      registers: { file_system: file_system },
-    )
-
-    template = Template.parse(
-      '{% render "snippet" %}',
-      line_numbers: true,
-    )
-    template.name = "template/index"
-
-    assert_equal(
-      "Liquid syntax error (snippet line 3): Variable '{{' was not properly terminated with regexp: /\\}\\}/",
-      template.render(context),
-    )
-  end
-
-  def test_syntax_error_is_raised_with_template_name_from_template_factory
-    file_system = StubFileSystem.new("snippet" => "1\n2\n{{ 1")
-
-    context = Liquid::Context.build(
-      registers: {
-        file_system: file_system,
-        template_factory: StubTemplateFactory.new,
-      },
-    )
-
-    template = Template.parse(
-      '{% render "snippet" %}',
-      line_numbers: true,
-    )
-    template.name = "template/index"
-
-    assert_equal(
-      "Liquid syntax error (some/path/snippet line 3): Variable '{{' was not properly terminated with regexp: /\\}\\}/",
-      template.render(context),
-    )
-  end
-
-  def test_error_is_raised_during_parse_with_template_name
-    depth = Liquid::Block::MAX_DEPTH + 1
-    code = "{% if true %}" * depth + "rendered" + "{% endif %}" * depth
-
-    template = Template.parse("{% render 'snippet' %}", line_numbers: true)
-
-    context = Liquid::Context.build(
-      registers: {
-        file_system: StubFileSystem.new("snippet" => code),
-        template_factory: StubTemplateFactory.new,
-      },
-    )
-
-    assert_equal("Liquid error (some/path/snippet line 1): Nesting too deep", template.render(context))
-  end
-
-  def test_internal_error_is_raised_with_template_name
-    template = Template.new
-    template.parse(
-      "{% render 'snippet' %}",
-      line_numbers: true,
-    )
-    template.name = "template/index"
-
-    context = Liquid::Context.build(
-      registers: {
-        file_system: StubFileSystem.new({}),
-      },
-    )
-
-    assert_equal(
-      "Liquid error (template/index line 1): internal",
-      template.render(context),
-    )
-  end
 end
@@ -4,46 +4,43 @@ require 'test_helper'

 class ExpressionTest < Minitest::Test
  def test_keyword_literals
-    assert_template_result("true", "{{ true }}")
-    assert_expression_result(true, "true")
+    assert_equal(true, parse_and_eval("true"))
+    assert_equal(true, parse_and_eval(" true "))
  end

  def test_string
-    assert_template_result("single quoted", "{{'single quoted'}}")
-    assert_template_result("double quoted", '{{"double quoted"}}')
-    assert_template_result("spaced", "{{ 'spaced' }}")
-    assert_template_result("spaced2", "{{ 'spaced2' }}")
+    assert_equal("single quoted", parse_and_eval("'single quoted'"))
+    assert_equal("double quoted", parse_and_eval('"double quoted"'))
+    assert_equal("spaced", parse_and_eval(" 'spaced' "))
+    assert_equal("spaced2", parse_and_eval(' "spaced2" '))
  end

  def test_int
-    assert_template_result("456", "{{ 456 }}")
-    assert_expression_result(123, "123")
-    assert_expression_result(12, "012")
+    assert_equal(123, parse_and_eval("123"))
+    assert_equal(456, parse_and_eval(" 456 "))
+    assert_equal(12, parse_and_eval("012"))
  end

  def test_float
-    assert_template_result("2.5", "{{ 2.5 }}")
-    assert_expression_result(1.5, "1.5")
+    assert_equal(1.5, parse_and_eval("1.5"))
+    assert_equal(2.5, parse_and_eval(" 2.5 "))
  end

  def test_range
-    assert_template_result("3..4", "{{ ( 3 .. 4 ) }}")
-    assert_expression_result(1..2, "(1..2)")
-
-    assert_match_syntax_error(
-      "Liquid syntax error (line 1): Invalid expression type 'false' in range expression",
-      "{{ (false..true) }}",
-    )
-    assert_match_syntax_error(
-      "Liquid syntax error (line 1): Invalid expression type '(1..2)' in range expression",
-      "{{ ((1..2)..3) }}",
-    )
+    assert_equal(1..2, parse_and_eval("(1..2)"))
+    assert_equal(3..4, parse_and_eval(" ( 3 .. 4 ) "))
  end

  private

-  def assert_expression_result(expect, markup, **assigns)
-    liquid = "{% if expect == #{markup} %}pass{% else %}got {{ #{markup} }}{% endif %}"
-    assert_template_result("pass", liquid, { "expect" => expect, **assigns })
+  def parse_and_eval(markup, **assigns)
+    if Liquid::Template.error_mode == :strict
+      p = Liquid::Parser.new(markup)
+      markup = p.expression
+      p.consume(:end_of_string)
+    end
+    expression = Liquid::Expression.parse(markup)
+    context = Liquid::Context.new(assigns)
+    context.evaluate(expression)
  end
 end
@@ -1,24 +0,0 @@
-# frozen_string_literal: true
-
-require 'test_helper'
-
-class FilterKwargTest < Minitest::Test
-  module KwargFilter
-    def html_tag(_tag, attributes)
-      attributes
-        .map { |key, value| "#{key}='#{value}'" }
-        .join(' ')
-    end
-  end
-
-  include Liquid
-
-  def test_can_parse_data_kwargs
-    with_global_filter(KwargFilter) do
-      assert_equal(
-        "data-src='src' data-widths='100, 200'",
-        Template.parse("{{ 'img' | html_tag: data-src: 'src', data-widths: '100, 200' }}").render(nil, nil),
-      )
-    end
-  end
-end
@@ -59,87 +59,84 @@ class FiltersTest < Minitest::Test
  end

  def test_size
-    assert_template_result("4", "{{var | size}}", { "var" => 'abcd' })
+    @context['var'] = 'abcd'
+    @context.add_filters(MoneyFilter)
+
+    assert_equal('4', Template.parse("{{var | size}}").render(@context))
  end

  def test_join
-    assert_template_result("1 2 3 4", "{{var | join}}", { "var" => [1, 2, 3, 4] })
+    @context['var'] = [1, 2, 3, 4]
+
+    assert_equal("1 2 3 4", Template.parse("{{var | join}}").render(@context))
  end

  def test_sort
-    assert_template_result("1 2 3 4", "{{numbers | sort | join}}", { "numbers" => [2, 1, 4, 3] })
-    assert_template_result(
-      "alphabetic as expected",
-      "{{words | sort | join}}",
-      { "words" => ['expected', 'as', 'alphabetic'] },
-    )
-    assert_template_result("3", "{{value | sort}}", { "value" => 3 })
-    assert_template_result('are flower', "{{arrays | sort | join}}", { 'arrays' => ['flower', 'are'] })
-    assert_template_result(
-      "Expected case sensitive",
-      "{{case_sensitive | sort | join}}",
-      { "case_sensitive" => ["sensitive", "Expected", "case"] },
-    )
+    @context['value']   = 3
+    @context['numbers'] = [2, 1, 4, 3]
+    @context['words']   = ['expected', 'as', 'alphabetic']
+    @context['arrays']  = ['flower', 'are']
+    @context['case_sensitive'] = ['sensitive', 'Expected', 'case']
+
+    assert_equal('1 2 3 4', Template.parse("{{numbers | sort | join}}").render(@context))
+    assert_equal('alphabetic as expected', Template.parse("{{words | sort | join}}").render(@context))
+    assert_equal('3', Template.parse("{{value | sort}}").render(@context))
+    assert_equal('are flower', Template.parse("{{arrays | sort | join}}").render(@context))
+    assert_equal('Expected case sensitive', Template.parse("{{case_sensitive | sort | join}}").render(@context))
  end

  def test_sort_natural
+    @context['words']   = ['case', 'Assert', 'Insensitive']
+    @context['hashes']  = [{ 'a' => 'A' }, { 'a' => 'b' }, { 'a' => 'C' }]
+    @context['objects'] = [TestObject.new('A'), TestObject.new('b'), TestObject.new('C')]
+
    # Test strings
-    assert_template_result(
-      "Assert case Insensitive",
-      "{{words | sort_natural | join}}",
-      { "words" => ["case", "Assert", "Insensitive"] },
-    )
+    assert_equal('Assert case Insensitive', Template.parse("{{words | sort_natural | join}}").render(@context))

    # Test hashes
-    assert_template_result(
-      "A b C",
-      "{{hashes | sort_natural: 'a' | map: 'a' | join}}",
-      { "hashes" => [{ "a" => "A" }, { "a" => "b" }, { "a" => "C" }] },
-    )
+    assert_equal('A b C', Template.parse("{{hashes | sort_natural: 'a' | map: 'a' | join}}").render(@context))

    # Test objects
-    @context['objects'] = [TestObject.new('A'), TestObject.new('b'), TestObject.new('C')]
    assert_equal('A b C', Template.parse("{{objects | sort_natural: 'a' | map: 'a' | join}}").render(@context))
  end

  def test_compact
+    @context['words']   = ['a', nil, 'b', nil, 'c']
+    @context['hashes']  = [{ 'a' => 'A' }, { 'a' => nil }, { 'a' => 'C' }]
+    @context['objects'] = [TestObject.new('A'), TestObject.new(nil), TestObject.new('C')]
+
    # Test strings
-    assert_template_result(
-      "a b c",
-      "{{words | compact | join}}",
-      { "words" => ['a', nil, 'b', nil, 'c'] },
-    )
+    assert_equal('a b c', Template.parse("{{words | compact | join}}").render(@context))

    # Test hashes
-    assert_template_result(
-      "A C",
-      "{{hashes | compact: 'a' | map: 'a' | join}}",
-      { "hashes" => [{ "a" => "A" }, { "a" => nil }, { "a" => "C" }] },
-    )
+    assert_equal('A C', Template.parse("{{hashes | compact: 'a' | map: 'a' | join}}").render(@context))

    # Test objects
-    @context['objects'] = [TestObject.new('A'), TestObject.new(nil), TestObject.new('C')]
    assert_equal('A C', Template.parse("{{objects | compact: 'a' | map: 'a' | join}}").render(@context))
  end

  def test_strip_html
-    assert_template_result("bla blub", "{{ var | strip_html }}", { "var" => "<b>bla blub</a>" })
+    @context['var'] = "<b>bla blub</a>"
+
+    assert_equal("bla blub", Template.parse("{{ var | strip_html }}").render(@context))
  end

  def test_strip_html_ignore_comments_with_html
-    assert_template_result(
-      "bla blub",
-      "{{ var | strip_html }}",
-      { "var" => "<!-- split and some <ul> tag --><b>bla blub</a>" },
-    )
+    @context['var'] = "<!-- split and some <ul> tag --><b>bla blub</a>"
+
+    assert_equal("bla blub", Template.parse("{{ var | strip_html }}").render(@context))
  end

  def test_capitalize
-    assert_template_result("Blub", "{{ var | capitalize }}", { "var" => "blub" })
+    @context['var'] = "blub"
+
+    assert_equal("Blub", Template.parse("{{ var | capitalize }}").render(@context))
  end

  def test_nonexistent_filter_is_ignored
-    assert_template_result("1000", "{{ var | xyzzy }}", { "var" => 1000 })
+    @context['var'] = 1000
+
+    assert_equal('1000', Template.parse("{{ var | xyzzy }}").render(@context))
  end

  def test_filter_with_keyword_arguments
@@ -33,25 +33,31 @@ class OutputTest < Minitest::Test

  def setup
    @assigns = {
+      'best_cars' => 'bmw',
      'car' => { 'bmw' => 'good', 'gm' => 'bad' },
    }
  end

  def test_variable
-    assert_template_result(" bmw ", " {{best_cars}} ", { "best_cars" => "bmw" })
+    text = %( {{best_cars}} )
+
+    expected = %( bmw )
+    assert_equal(expected, Template.parse(text).render!(@assigns))
  end

  def test_variable_traversing_with_two_brackets
-    source = "{{ site.data.menu[include.menu][include.locale] }}"
-    assert_template_result("it works!", source, {
+    text = %({{ site.data.menu[include.menu][include.locale] }})
+    assert_equal("it works!", Template.parse(text).render!(
      "site" => { "data" => { "menu" => { "foo" => { "bar" => "it works!" } } } },
-      "include" => { "menu" => "foo", "locale" => "bar" },
-    })
+      "include" => { "menu" => "foo", "locale" => "bar" }
+    ))
  end

  def test_variable_traversing
-    source = " {{car.bmw}} {{car.gm}} {{car.bmw}} "
-    assert_template_result(" good bad good ", source, @assigns)
+    text = %( {{car.bmw}} {{car.gm}} {{car.bmw}} )
+
+    expected = %( good bad good )
+    assert_equal(expected, Template.parse(text).render!(@assigns))
  end

  def test_variable_piping
@@ -104,11 +110,10 @@ class OutputTest < Minitest::Test
  end

  def test_multiple_pipings
-    assigns = { 'best_cars' => 'bmw' }
    text     = %( {{ best_cars | cite_funny | paragraph }} )
    expected = %( <p>LOL: bmw</p> )

-    assert_equal(expected, Template.parse(text).render!(assigns, filters: [FunnyFilter]))
+    assert_equal(expected, Template.parse(text).render!(@assigns, filters: [FunnyFilter]))
  end

  def test_link_to
@@ -129,6 +129,6 @@ class ParsingQuirksTest < Minitest::Test
  end

  def test_contains_in_id
-    assert_template_result(' YES ', '{% if containsallshipments == true %} YES {% endif %}', { 'containsallshipments' => true })
+    assert_template_result(' YES ', '{% if containsallshipments == true %} YES {% endif %}', 'containsallshipments' => true)
  end
 end # ParsingQuirksTest
@@ -3,27 +3,6 @@
 require 'test_helper'

 class ProfilerTest < Minitest::Test
-  class TestDrop < Liquid::Drop
-    def initialize(value)
-      super()
-      @value = value
-    end
-
-    def to_s
-      artificial_execution_time
-
-      @value
-    end
-
-    private
-
-    # Monotonic clock precision fluctuate based on the operating system
-    # By introducing a small sleep we ensure ourselves to register a non zero unit of time
-    def artificial_execution_time
-      sleep(Process.clock_getres(Process::CLOCK_MONOTONIC))
-    end
-  end
-
  include Liquid

  class ProfilingFileSystem
@@ -219,22 +198,16 @@ class ProfilerTest < Minitest::Test

  def test_profiling_supports_self_time
    t = Template.parse("{% for item in collection %} {{ item }} {% endfor %}", profile: true)
-    collection = [
-      TestDrop.new("one"),
-      TestDrop.new("two"),
-    ]
-    output = t.render!("collection" => collection)
-    assert_equal(" one  two ", output)
-
+    t.render!("collection" => ["one", "two"])
    leaf = t.profiler[0].children[0]
-    assert_operator(leaf.self_time, :>, 0.0)
+
+    assert_operator(leaf.self_time, :>, 0)
  end

  def test_profiling_supports_total_time
-    t = Template.parse("{% if true %} {{ test }} {% endif %}", profile: true)
-    output = t.render!("test" => TestDrop.new("one"))
-    assert_equal(" one ", output)
+    t = Template.parse("{% if true %} {% increment test %} {{ test }} {% endif %}", profile: true)
+    t.render!

-    assert_operator(t.profiler[0].total_time, :>, 0.0)
+    assert_operator(t.profiler[0].total_time, :>, 0)
  end
 end
@@ -3,6 +3,10 @@

 require 'test_helper'

+class Filters
+  include Liquid::StandardFilters
+end
+
 class TestThing
  attr_reader :foo

@@ -25,24 +29,8 @@ class TestThing
 end

 class TestDrop < Liquid::Drop
-  def initialize(value:)
-    @value = value
-  end
-
-  attr_reader :value
-
-  def registers
-    { @value => @context.registers[@value] }
-  end
-end
-
-class TestModel
-  def initialize(value:)
-    @value = value
-  end
-
-  def to_liquid
-    TestDrop.new(value: @value)
+  def test
+    "testfoo"
  end
 end

@@ -65,13 +53,10 @@ class NumberLikeThing < Liquid::Drop
 end

 class StandardFiltersTest < Minitest::Test
-  Filters = Class.new(Liquid::StrainerTemplate)
-  Filters.add_filter(Liquid::StandardFilters)
-
  include Liquid

  def setup
-    @filters = Filters.new(Context.new)
+    @filters = Filters.new
  end

  def test_size
@@ -109,10 +94,6 @@ class StandardFiltersTest < Minitest::Test
    assert_raises(Liquid::ArgumentError) do
      @filters.slice('foobar', 0, "")
    end
-    assert_equal("", @filters.slice("foobar", 0, -(1 << 64)))
-    assert_equal("foobar", @filters.slice("foobar", 0, 1 << 63))
-    assert_equal("", @filters.slice("foobar", 1 << 63, 6))
-    assert_equal("", @filters.slice("foobar", -(1 << 63), 6))
  end

  def test_slice_on_arrays
@@ -127,10 +108,6 @@ class StandardFiltersTest < Minitest::Test
    assert_equal(%w(r), @filters.slice(input, -1))
    assert_equal(%w(), @filters.slice(input, 100, 10))
    assert_equal(%w(), @filters.slice(input, -100, 10))
-    assert_equal([], @filters.slice(input, 0, -(1 << 64)))
-    assert_equal(input, @filters.slice(input, 0, 1 << 63))
-    assert_equal([], @filters.slice(input, 1 << 63, 6))
-    assert_equal([], @filters.slice(input, -(1 << 63), 6))
  end

  def test_truncate
@@ -140,8 +117,6 @@ class StandardFiltersTest < Minitest::Test
    assert_equal('1234567890', @filters.truncate('1234567890'))
    assert_equal("测试...", @filters.truncate("测试测试测试测试", 5))
    assert_equal('12341', @filters.truncate("1234567890", 5, 1))
-    assert_equal("foobar", @filters.truncate("foobar", 1 << 63))
-    assert_equal("...", @filters.truncate("foobar", -(1 << 63)))
  end

  def test_split
@@ -188,7 +163,7 @@ class StandardFiltersTest < Minitest::Test
  def test_base64_url_safe_encode
    assert_equal(
      'YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXogQUJDREVGR0hJSktMTU5PUFFSU1RVVldYWVogMTIzNDU2Nzg5MCAhQCMkJV4mKigpLT1fKy8_Ljo7W117fVx8',
-      @filters.base64_url_safe_encode('abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ 1234567890 !@#$%^&*()-=_+/?.:;[]{}\|'),
+      @filters.base64_url_safe_encode('abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ 1234567890 !@#$%^&*()-=_+/?.:;[]{}\|')
    )
    assert_equal('', @filters.base64_url_safe_encode(nil))
  end
@@ -196,7 +171,7 @@ class StandardFiltersTest < Minitest::Test
  def test_base64_url_safe_decode
    assert_equal(
      'abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ 1234567890 !@#$%^&*()-=_+/?.:;[]{}\|',
-      @filters.base64_url_safe_decode('YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXogQUJDREVGR0hJSktMTU5PUFFSU1RVVldYWVogMTIzNDU2Nzg5MCAhQCMkJV4mKigpLT1fKy8_Ljo7W117fVx8'),
+      @filters.base64_url_safe_decode('YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXogQUJDREVGR0hJSktMTU5PUFFSU1RVVldYWVogMTIzNDU2Nzg5MCAhQCMkJV4mKigpLT1fKy8_Ljo7W117fVx8')
    )
    exception = assert_raises(Liquid::ArgumentError) do
      @filters.base64_url_safe_decode("invalidbase64")
@@ -230,15 +205,17 @@ class StandardFiltersTest < Minitest::Test
    assert_equal('one two three', @filters.truncatewords('one two three'))
    assert_equal(
      'Two small (13&#8221; x 5.5&#8221; x 10&#8221; high) baskets fit inside one large basket (13&#8221;...',
-      @filters.truncatewords('Two small (13&#8221; x 5.5&#8221; x 10&#8221; high) baskets fit inside one large basket (13&#8221; x 16&#8221; x 10.5&#8221; high) with cover.', 15),
+      @filters.truncatewords('Two small (13&#8221; x 5.5&#8221; x 10&#8221; high) baskets fit inside one large basket (13&#8221; x 16&#8221; x 10.5&#8221; high) with cover.', 15)
    )
    assert_equal("测试测试测试测试", @filters.truncatewords('测试测试测试测试', 5))
    assert_equal('one two1', @filters.truncatewords("one two three", 2, 1))
    assert_equal('one two three...', @filters.truncatewords("one  two\tthree\nfour", 3))
    assert_equal('one two...', @filters.truncatewords("one two three four", 2))
    assert_equal('one...', @filters.truncatewords("one two three four", 0))
-    assert_equal('one two three four', @filters.truncatewords("one two three four", 1 << 31))
-    assert_equal('one...', @filters.truncatewords("one two three four", -(1 << 32)))
+    exception = assert_raises(Liquid::ArgumentError) do
+      @filters.truncatewords("one two three four", 1 << 31)
+    end
+    assert_equal("Liquid error: integer #{1 << 31} too big for truncatewords", exception.message)
  end

  def test_strip_html
@@ -282,8 +259,8 @@ class StandardFiltersTest < Minitest::Test
      { "price" => 1, "handle" => "gamma" },
      { "price" => 2, "handle" => "epsilon" },
      { "price" => 4, "handle" => "alpha" },
-      { "handle" => "beta" },
      { "handle" => "delta" },
+      { "handle" => "beta" },
    ]
    assert_equal(expectation, @filters.sort(input, "price"))
  end
@@ -386,9 +363,8 @@ class StandardFiltersTest < Minitest::Test
    assert_equal(["foo"], @filters.uniq("foo"))
    assert_equal([1, 3, 2, 4], @filters.uniq([1, 1, 3, 2, 3, 1, 4, 3, 2, 1]))
    assert_equal([{ "a" => 1 }, { "a" => 3 }, { "a" => 2 }], @filters.uniq([{ "a" => 1 }, { "a" => 3 }, { "a" => 1 }, { "a" => 2 }], "a"))
-    test_drop = TestDrop.new(value: "test")
-    test_drop_alternate = TestDrop.new(value: "test")
-    assert_equal([test_drop], @filters.uniq([test_drop, test_drop_alternate], 'value'))
+    testdrop = TestDrop.new
+    assert_equal([testdrop], @filters.uniq([testdrop, TestDrop.new], 'test'))
  end

  def test_uniq_empty_array
@@ -433,11 +409,8 @@ class StandardFiltersTest < Minitest::Test

  def test_map
    assert_equal([1, 2, 3, 4], @filters.map([{ "a" => 1 }, { "a" => 2 }, { "a" => 3 }, { "a" => 4 }], 'a'))
-    assert_template_result(
-      'abc',
-      "{{ ary | map:'foo' | map:'bar' }}",
-      { 'ary' => [{ 'foo' => { 'bar' => 'a' } }, { 'foo' => { 'bar' => 'b' } }, { 'foo' => { 'bar' => 'c' } }] },
-    )
+    assert_template_result('abc', "{{ ary | map:'foo' | map:'bar' }}",
+      'ary' => [{ 'foo' => { 'bar' => 'a' } }, { 'foo' => { 'bar' => 'b' } }, { 'foo' => { 'bar' => 'c' } }])
  end

  def test_map_doesnt_call_arbitrary_stuff
@@ -447,31 +420,18 @@ class StandardFiltersTest < Minitest::Test

  def test_map_calls_to_liquid
    t = TestThing.new
-    assert_template_result("woot: 1", '{{ foo | map: "whatever" }}', { "foo" => [t] })
-  end
-
-  def test_map_calls_context=
-    model = TestModel.new(value: :test)
-
-    template = Template.parse('{{ foo | map: "registers" }}')
-    template.registers[:test] = 1234
-    template.assigns['foo'] = [model]
-
-    assert_template_result("{:test=>1234}", template.render!)
+    assert_template_result("woot: 1", '{{ foo | map: "whatever" }}', "foo" => [t])
  end

  def test_map_on_hashes
-    assert_template_result(
-      "4217",
-      '{{ thing | map: "foo" | map: "bar" }}',
-      { "thing" => { "foo" => [{ "bar" => 42 }, { "bar" => 17 }] } },
-    )
+    assert_template_result("4217", '{{ thing | map: "foo" | map: "bar" }}',
+      "thing" => { "foo" => [{ "bar" => 42 }, { "bar" => 17 }] })
  end

  def test_legacy_map_on_hashes_with_dynamic_key
    template = "{% assign key = 'foo' %}{{ thing | map: key | map: 'bar' }}"
    hash     = { "foo" => { "bar" => 42 } }
-    assert_template_result("42", template, { "thing" => hash })
+    assert_template_result("42", template, "thing" => hash)
  end

  def test_sort_calls_to_liquid
@@ -481,10 +441,10 @@ class StandardFiltersTest < Minitest::Test
  end

  def test_map_over_proc
-    drop  = TestDrop.new(value: "testfoo")
+    drop  = TestDrop.new
    p     = proc { drop }
-    output = Liquid::Template.parse('{{ procs | map: "value" }}').render!({ "procs" => [p] })
-    assert_equal("testfoo", output)
+    templ = '{{ procs | map: "test" }}'
+    assert_template_result("testfoo", templ, "procs" => [p])
  end

  def test_map_over_drops_returning_procs
@@ -496,13 +456,12 @@ class StandardFiltersTest < Minitest::Test
        "proc" => -> { "bar" },
      },
    ]
-    output = Liquid::Template.parse('{{ drops | map: "proc" }}').render!({ "drops" => drops })
-    assert_equal("foobar", output)
+    templ = '{{ drops | map: "proc" }}'
+    assert_template_result("foobar", templ, "drops" => drops)
  end

  def test_map_works_on_enumerables
-    output = Liquid::Template.parse('{{ foo | map: "foo" }}').render!({ "foo" => TestEnumerable.new })
-    assert_equal("123", output)
+    assert_template_result("123", '{{ foo | map: "foo" }}', "foo" => TestEnumerable.new)
  end

  def test_map_returns_empty_on_2d_input_array
@@ -529,16 +488,16 @@ class StandardFiltersTest < Minitest::Test
  end

  def test_sort_works_on_enumerables
-    assert_template_result("213", '{{ foo | sort: "bar" | map: "foo" }}', { "foo" => TestEnumerable.new })
+    assert_template_result("213", '{{ foo | sort: "bar" | map: "foo" }}', "foo" => TestEnumerable.new)
  end

  def test_first_and_last_call_to_liquid
-    assert_template_result('foobar', '{{ foo | first }}', { 'foo' => [ThingWithToLiquid.new] })
-    assert_template_result('foobar', '{{ foo | last }}', { 'foo' => [ThingWithToLiquid.new] })
+    assert_template_result('foobar', '{{ foo | first }}', 'foo' => [ThingWithToLiquid.new])
+    assert_template_result('foobar', '{{ foo | last }}', 'foo' => [ThingWithToLiquid.new])
  end

  def test_truncate_calls_to_liquid
-    assert_template_result("wo...", '{{ foo | truncate: 5 }}', { "foo" => TestThing.new })
+    assert_template_result("wo...", '{{ foo | truncate: 5 }}', "foo" => TestThing.new)
  end

  def test_date
@@ -580,31 +539,19 @@ class StandardFiltersTest < Minitest::Test
  end

  def test_replace
-    assert_equal('b b b b', @filters.replace('a a a a', 'a', 'b'))
+    assert_equal('2 2 2 2', @filters.replace('1 1 1 1', '1', 2))
    assert_equal('2 2 2 2', @filters.replace('1 1 1 1', 1, 2))
-    assert_equal('1 1 1 1', @filters.replace('1 1 1 1', 2, 3))
-    assert_template_result('2 2 2 2', "{{ '1 1 1 1' | replace: '1', 2 }}")
-
-    assert_equal('b a a a', @filters.replace_first('a a a a', 'a', 'b'))
+    assert_equal('2 1 1 1', @filters.replace_first('1 1 1 1', '1', 2))
    assert_equal('2 1 1 1', @filters.replace_first('1 1 1 1', 1, 2))
-    assert_equal('1 1 1 1', @filters.replace_first('1 1 1 1', 2, 3))
    assert_template_result('2 1 1 1', "{{ '1 1 1 1' | replace_first: '1', 2 }}")
-
-    assert_equal('a a a b', @filters.replace_last('a a a a', 'a', 'b'))
-    assert_equal('1 1 1 2', @filters.replace_last('1 1 1 1', 1, 2))
-    assert_equal('1 1 1 1', @filters.replace_last('1 1 1 1', 2, 3))
-    assert_template_result('1 1 1 2', "{{ '1 1 1 1' | replace_last: '1', 2 }}")
  end

  def test_remove
    assert_equal('   ', @filters.remove("a a a a", 'a'))
-    assert_template_result('   ', "{{ '1 1 1 1' | remove: 1 }}")
-
-    assert_equal('b a a', @filters.remove_first("a b a a", 'a '))
-    assert_template_result(' 1 1 1', "{{ '1 1 1 1' | remove_first: 1 }}")
-
-    assert_equal('a a b', @filters.remove_last("a a b a", ' a'))
-    assert_template_result('1 1 1 ', "{{ '1 1 1 1' | remove_last: 1 }}")
+    assert_equal('   ', @filters.remove("1 1 1 1", 1))
+    assert_equal('a a a', @filters.remove_first("a a a a", 'a '))
+    assert_equal(' 1 1 1', @filters.remove_first("1 1 1 1", 1))
+    assert_template_result('a a a', "{{ 'a a a a' | remove_first: 'a ' }}")
  end

  def test_pipes_in_string_arguments
@@ -612,42 +559,42 @@ class StandardFiltersTest < Minitest::Test
  end

  def test_strip
-    assert_template_result('ab c', "{{ source | strip }}", { 'source' => " ab c  " })
-    assert_template_result('ab c', "{{ source | strip }}", { 'source' => " \tab c  \n \t" })
+    assert_template_result('ab c', "{{ source | strip }}", 'source' => " ab c  ")
+    assert_template_result('ab c', "{{ source | strip }}", 'source' => " \tab c  \n \t")
  end

  def test_lstrip
-    assert_template_result('ab c  ', "{{ source | lstrip }}", { 'source' => " ab c  " })
-    assert_template_result("ab c  \n \t", "{{ source | lstrip }}", { 'source' => " \tab c  \n \t" })
+    assert_template_result('ab c  ', "{{ source | lstrip }}", 'source' => " ab c  ")
+    assert_template_result("ab c  \n \t", "{{ source | lstrip }}", 'source' => " \tab c  \n \t")
  end

  def test_rstrip
-    assert_template_result(" ab c", "{{ source | rstrip }}", { 'source' => " ab c  " })
-    assert_template_result(" \tab c", "{{ source | rstrip }}", { 'source' => " \tab c  \n \t" })
+    assert_template_result(" ab c", "{{ source | rstrip }}", 'source' => " ab c  ")
+    assert_template_result(" \tab c", "{{ source | rstrip }}", 'source' => " \tab c  \n \t")
  end

  def test_strip_newlines
-    assert_template_result('abc', "{{ source | strip_newlines }}", { 'source' => "a\nb\nc" })
-    assert_template_result('abc', "{{ source | strip_newlines }}", { 'source' => "a\r\nb\nc" })
+    assert_template_result('abc', "{{ source | strip_newlines }}", 'source' => "a\nb\nc")
+    assert_template_result('abc', "{{ source | strip_newlines }}", 'source' => "a\r\nb\nc")
  end

  def test_newlines_to_br
-    assert_template_result("a<br />\nb<br />\nc", "{{ source | newline_to_br }}", { 'source' => "a\nb\nc" })
-    assert_template_result("a<br />\nb<br />\nc", "{{ source | newline_to_br }}", { 'source' => "a\r\nb\nc" })
+    assert_template_result("a<br />\nb<br />\nc", "{{ source | newline_to_br }}", 'source' => "a\nb\nc")
+    assert_template_result("a<br />\nb<br />\nc", "{{ source | newline_to_br }}", 'source' => "a\r\nb\nc")
  end

  def test_plus
    assert_template_result("2", "{{ 1 | plus:1 }}")
    assert_template_result("2.0", "{{ '1' | plus:'1.0' }}")

-    assert_template_result("5", "{{ price | plus:'2' }}", { 'price' => NumberLikeThing.new(3) })
+    assert_template_result("5", "{{ price | plus:'2' }}", 'price' => NumberLikeThing.new(3))
  end

  def test_minus
-    assert_template_result("4", "{{ input | minus:operand }}", { 'input' => 5, 'operand' => 1 })
+    assert_template_result("4", "{{ input | minus:operand }}", 'input' => 5, 'operand' => 1)
    assert_template_result("2.3", "{{ '4.3' | minus:'2' }}")

-    assert_template_result("5", "{{ price | minus:'2' }}", { 'price' => NumberLikeThing.new(7) })
+    assert_template_result("5", "{{ price | minus:'2' }}", 'price' => NumberLikeThing.new(7))
  end

  def test_abs
@@ -670,7 +617,7 @@ class StandardFiltersTest < Minitest::Test
    assert_template_result("7.25", "{{ 0.0725 | times:100 }}")
    assert_template_result("-7.25", '{{ "-0.0725" | times:100 }}')
    assert_template_result("7.25", '{{ "-0.0725" | times: -100 }}')
-    assert_template_result("4", "{{ price | times:2 }}", { 'price' => NumberLikeThing.new(2) })
+    assert_template_result("4", "{{ price | times:2 }}", 'price' => NumberLikeThing.new(2))
  end

  def test_divided_by
@@ -685,7 +632,7 @@ class StandardFiltersTest < Minitest::Test
      assert_template_result("4", "{{ 1 | modulo: 0 }}")
    end

-    assert_template_result("5", "{{ price | divided_by:2 }}", { 'price' => NumberLikeThing.new(10) })
+    assert_template_result("5", "{{ price | divided_by:2 }}", 'price' => NumberLikeThing.new(10))
  end

  def test_modulo
@@ -694,39 +641,39 @@ class StandardFiltersTest < Minitest::Test
      assert_template_result("4", "{{ 1 | modulo: 0 }}")
    end

-    assert_template_result("1", "{{ price | modulo:2 }}", { 'price' => NumberLikeThing.new(3) })
+    assert_template_result("1", "{{ price | modulo:2 }}", 'price' => NumberLikeThing.new(3))
  end

  def test_round
-    assert_template_result("5", "{{ input | round }}", { 'input' => 4.6 })
+    assert_template_result("5", "{{ input | round }}", 'input' => 4.6)
    assert_template_result("4", "{{ '4.3' | round }}")
-    assert_template_result("4.56", "{{ input | round: 2 }}", { 'input' => 4.5612 })
+    assert_template_result("4.56", "{{ input | round: 2 }}", 'input' => 4.5612)
    assert_raises(Liquid::FloatDomainError) do
      assert_template_result("4", "{{ 1.0 | divided_by: 0.0 | round }}")
    end

-    assert_template_result("5", "{{ price | round }}", { 'price' => NumberLikeThing.new(4.6) })
-    assert_template_result("4", "{{ price | round }}", { 'price' => NumberLikeThing.new(4.3) })
+    assert_template_result("5", "{{ price | round }}", 'price' => NumberLikeThing.new(4.6))
+    assert_template_result("4", "{{ price | round }}", 'price' => NumberLikeThing.new(4.3))
  end

  def test_ceil
-    assert_template_result("5", "{{ input | ceil }}", { 'input' => 4.6 })
+    assert_template_result("5", "{{ input | ceil }}", 'input' => 4.6)
    assert_template_result("5", "{{ '4.3' | ceil }}")
    assert_raises(Liquid::FloatDomainError) do
      assert_template_result("4", "{{ 1.0 | divided_by: 0.0 | ceil }}")
    end

-    assert_template_result("5", "{{ price | ceil }}", { 'price' => NumberLikeThing.new(4.6) })
+    assert_template_result("5", "{{ price | ceil }}", 'price' => NumberLikeThing.new(4.6))
  end

  def test_floor
-    assert_template_result("4", "{{ input | floor }}", { 'input' => 4.6 })
+    assert_template_result("4", "{{ input | floor }}", 'input' => 4.6)
    assert_template_result("4", "{{ '4.3' | floor }}")
    assert_raises(Liquid::FloatDomainError) do
      assert_template_result("4", "{{ 1.0 | divided_by: 0.0 | floor }}")
    end

-    assert_template_result("5", "{{ price | floor }}", { 'price' => NumberLikeThing.new(5.4) })
+    assert_template_result("5", "{{ price | floor }}", 'price' => NumberLikeThing.new(5.4))
  end

  def test_at_most
@@ -735,9 +682,9 @@ class StandardFiltersTest < Minitest::Test
    assert_template_result("5", "{{ 5 | at_most:6 }}")

    assert_template_result("4.5", "{{ 4.5 | at_most:5 }}")
-    assert_template_result("5", "{{ width | at_most:5 }}", { 'width' => NumberLikeThing.new(6) })
-    assert_template_result("4", "{{ width | at_most:5 }}", { 'width' => NumberLikeThing.new(4) })
-    assert_template_result("4", "{{ 5 | at_most: width }}", { 'width' => NumberLikeThing.new(4) })
+    assert_template_result("5", "{{ width | at_most:5 }}", 'width' => NumberLikeThing.new(6))
+    assert_template_result("4", "{{ width | at_most:5 }}", 'width' => NumberLikeThing.new(4))
+    assert_template_result("4", "{{ 5 | at_most: width }}", 'width' => NumberLikeThing.new(4))
  end

  def test_at_least
@@ -746,9 +693,9 @@ class StandardFiltersTest < Minitest::Test
    assert_template_result("6", "{{ 5 | at_least:6 }}")

    assert_template_result("5", "{{ 4.5 | at_least:5 }}")
-    assert_template_result("6", "{{ width | at_least:5 }}", { 'width' => NumberLikeThing.new(6) })
-    assert_template_result("5", "{{ width | at_least:5 }}", { 'width' => NumberLikeThing.new(4) })
-    assert_template_result("6", "{{ 5 | at_least: width }}", { 'width' => NumberLikeThing.new(6) })
+    assert_template_result("6", "{{ width | at_least:5 }}", 'width' => NumberLikeThing.new(6))
+    assert_template_result("5", "{{ width | at_least:5 }}", 'width' => NumberLikeThing.new(4))
+    assert_template_result("6", "{{ 5 | at_least: width }}", 'width' => NumberLikeThing.new(6))
  end

  def test_append
@@ -781,8 +728,8 @@ class StandardFiltersTest < Minitest::Test
    assert_equal("bar", @filters.default([], "bar"))
    assert_equal("bar", @filters.default({}, "bar"))
    assert_template_result('bar', "{{ false | default: 'bar' }}")
-    assert_template_result('bar', "{{ drop | default: 'bar' }}", { 'drop' => BooleanDrop.new(false) })
-    assert_template_result('Yay', "{{ drop | default: 'bar' }}", { 'drop' => BooleanDrop.new(true) })
+    assert_template_result('bar', "{{ drop | default: 'bar' }}", 'drop' => BooleanDrop.new(false))
+    assert_template_result('Yay', "{{ drop | default: 'bar' }}", 'drop' => BooleanDrop.new(true))
  end

  def test_default_handle_false
@@ -793,8 +740,8 @@ class StandardFiltersTest < Minitest::Test
    assert_equal("bar", @filters.default([], "bar", "allow_false" => true))
    assert_equal("bar", @filters.default({}, "bar", "allow_false" => true))
    assert_template_result('false', "{{ false | default: 'bar', allow_false: true }}")
-    assert_template_result('Nay', "{{ drop | default: 'bar', allow_false: true }}", { 'drop' => BooleanDrop.new(false) })
-    assert_template_result('Yay', "{{ drop | default: 'bar', allow_false: true }}", { 'drop' => BooleanDrop.new(true) })
+    assert_template_result('Nay', "{{ drop | default: 'bar', allow_false: true }}", 'drop' => BooleanDrop.new(false))
+    assert_template_result('Yay', "{{ drop | default: 'bar', allow_false: true }}", 'drop' => BooleanDrop.new(true))
  end

  def test_cannot_access_private_methods
@@ -880,7 +827,7 @@ class StandardFiltersTest < Minitest::Test
  end

  def test_all_filters_never_raise_non_liquid_exception
-    test_drop = TestDrop.new(value: "test")
+    test_drop = TestDrop.new
    test_drop.context = Context.new
    test_enum = TestEnumerable.new
    test_enum.context = Context.new
@@ -905,14 +852,19 @@ class StandardFiltersTest < Minitest::Test
      { 1 => "bar" },
      ["foo", 123, nil, true, false, Drop, ["foo"], { foo: "bar" }],
    ]
-    StandardFilters.public_instance_methods(false).each do |method|
-      arg_count = @filters.method(method).arity
-      arg_count *= -1 if arg_count < 0
-
-      test_types.repeated_permutation(arg_count) do |args|
-        @filters.send(method, *args)
-      rescue Liquid::Error
-        nil
+    test_types.each do |first|
+      test_types.each do |other|
+        (@filters.methods - Object.methods).each do |method|
+          arg_count = @filters.method(method).arity
+          arg_count *= -1 if arg_count < 0
+          inputs = [first]
+          inputs << ([other] * (arg_count - 1)) if arg_count > 1
+          begin
+            @filters.send(method, *inputs)
+          rescue Liquid::ArgumentError, Liquid::ZeroDivisionError
+            nil
+          end
+        end
      end
    end
  end
@@ -928,60 +880,6 @@ class StandardFiltersTest < Minitest::Test
    assert_equal([{ "foo" => true }, { "foo" => "for sure" }], @filters.where(input, "foo"))
  end

-  def test_sum_with_all_numbers
-    input = [1, 2]
-
-    assert_equal(3, @filters.sum(input))
-    assert_raises(Liquid::ArgumentError, "cannot select the property 'quantity'") do
-      @filters.sum(input, "quantity")
-    end
-  end
-
-  def test_sum_with_numeric_strings
-    input = [1, 2, "3", "4"]
-
-    assert_equal(10, @filters.sum(input))
-    assert_raises(Liquid::ArgumentError, "cannot select the property 'quantity'") do
-      @filters.sum(input, "quantity")
-    end
-  end
-
-  def test_sum_with_nested_arrays
-    input = [1, [2, [3, 4]]]
-
-    assert_equal(10, @filters.sum(input))
-    assert_raises(Liquid::ArgumentError, "cannot select the property 'quantity'") do
-      @filters.sum(input, "quantity")
-    end
-  end
-
-  def test_sum_with_indexable_map_values
-    input = [{ "quantity" => 1 }, { "quantity" => 2, "weight" => 3 }, { "weight" => 4 }]
-
-    assert_equal(0, @filters.sum(input))
-    assert_equal(3, @filters.sum(input, "quantity"))
-    assert_equal(7, @filters.sum(input, "weight"))
-    assert_equal(0, @filters.sum(input, "subtotal"))
-  end
-
-  def test_sum_with_indexable_non_map_values
-    input = [1, [2], "foo", { "quantity" => 3 }]
-
-    assert_equal(3, @filters.sum(input))
-    assert_raises(Liquid::ArgumentError, "cannot select the property 'quantity'") do
-      @filters.sum(input, "quantity")
-    end
-  end
-
-  def test_sum_with_unindexable_values
-    input = [1, true, nil, { "quantity" => 2 }]
-
-    assert_equal(1, @filters.sum(input))
-    assert_raises(Liquid::ArgumentError, "cannot select the property 'quantity'") do
-      @filters.sum(input, "quantity")
-    end
-  end
-
  private

  def with_timezone(tz)
@@ -9,8 +9,8 @@ class BreakTagTest < Minitest::Test
  # block
  def test_break_with_no_block
    assigns  = { 'i' => 1 }
-    markup   = 'before{% break %}after'
-    expected = 'before'
+    markup   = '{% break %}'
+    expected = ''

    assert_template_result(expected, markup, assigns)
  end
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+require 'test_helper'
+
+class CommentTagTest < Minitest::Test
+  include Liquid
+
+  def test_single_line_comments_parse
+    assert_template_result('Before comment', <<~LIQUID)
+      Before comment
+      {%- comment -%}
+        Regular text comment
+        Liquid in comment: {% echo 'Hi from comment' %}
+      {%- endcomment -%}
+    LIQUID
+  end
+
+  def test_multi_line_comments_parse
+    assert_template_result('Before comment', <<~LIQUID)
+      Before comment
+      {%- comment -%} Regular text comment {%- endcomment -%}
+      {%- comment -%} Liquid in comment: {% echo 'Hi from comment' %} {%- endcomment -%}
+    LIQUID
+  end
+end # CommentTagTest
@@ -6,7 +6,7 @@ class EchoTest < Minitest::Test
  include Liquid

  def test_echo_outputs_its_input
-    assert_template_result('BAR', <<~LIQUID, { 'variable-name' => 'bar' })
+    assert_template_result('BAR', <<~LIQUID, 'variable-name' => 'bar')
      {%- echo variable-name | upcase -%}
    LIQUID
  end
@@ -12,10 +12,10 @@ class ForTagTest < Minitest::Test
  include Liquid

  def test_for
-    assert_template_result(' yo  yo  yo  yo ', '{%for item in array%} yo {%endfor%}', { 'array' => [1, 2, 3, 4] })
-    assert_template_result('yoyo', '{%for item in array%}yo{%endfor%}', { 'array' => [1, 2] })
-    assert_template_result(' yo ', '{%for item in array%} yo {%endfor%}', { 'array' => [1] })
-    assert_template_result('', '{%for item in array%}{%endfor%}', { 'array' => [1, 2] })
+    assert_template_result(' yo  yo  yo  yo ', '{%for item in array%} yo {%endfor%}', 'array' => [1, 2, 3, 4])
+    assert_template_result('yoyo', '{%for item in array%}yo{%endfor%}', 'array' => [1, 2])
+    assert_template_result(' yo ', '{%for item in array%} yo {%endfor%}', 'array' => [1])
+    assert_template_result('', '{%for item in array%}{%endfor%}', 'array' => [1, 2])
    expected = <<HERE

  yo
@@ -30,7 +30,7 @@ HERE
        yo
      {%endfor%}
    HERE
-    assert_template_result(expected, template, { 'array' => [1, 2, 3] })
+    assert_template_result(expected, template, 'array' => [1, 2, 3])
  end

  def test_for_reversed
@@ -45,39 +45,37 @@ HERE
      Template.parse('{% for i in (a..2) %}{% endfor %}').render!("a" => [1, 2])
    end

-    assert_template_result(' 0  1  2  3 ', '{% for item in (a..3) %} {{item}} {% endfor %}', { "a" => "invalid integer" })
+    assert_template_result(' 0  1  2  3 ', '{% for item in (a..3) %} {{item}} {% endfor %}', "a" => "invalid integer")
  end

  def test_for_with_variable_range
-    assert_template_result(' 1  2  3 ', '{%for item in (1..foobar) %} {{item}} {%endfor%}', { "foobar" => 3 })
+    assert_template_result(' 1  2  3 ', '{%for item in (1..foobar) %} {{item}} {%endfor%}', "foobar" => 3)
  end

  def test_for_with_hash_value_range
    foobar = { "value" => 3 }
-    assert_template_result(' 1  2  3 ', '{%for item in (1..foobar.value) %} {{item}} {%endfor%}', { "foobar" => foobar })
+    assert_template_result(' 1  2  3 ', '{%for item in (1..foobar.value) %} {{item}} {%endfor%}', "foobar" => foobar)
  end

  def test_for_with_drop_value_range
    foobar = ThingWithValue.new
-    assert_template_result(' 1  2  3 ', '{%for item in (1..foobar.value) %} {{item}} {%endfor%}', { "foobar" => foobar })
+    assert_template_result(' 1  2  3 ', '{%for item in (1..foobar.value) %} {{item}} {%endfor%}', "foobar" => foobar)
  end

  def test_for_with_variable
-    assert_template_result(' 1  2  3 ', '{%for item in array%} {{item}} {%endfor%}', { 'array' => [1, 2, 3] })
-    assert_template_result('123', '{%for item in array%}{{item}}{%endfor%}', { 'array' => [1, 2, 3] })
-    assert_template_result('123', '{% for item in array %}{{item}}{% endfor %}', { 'array' => [1, 2, 3] })
-    assert_template_result('abcd', '{%for item in array%}{{item}}{%endfor%}', { 'array' => ['a', 'b', 'c', 'd'] })
-    assert_template_result('a b c', '{%for item in array%}{{item}}{%endfor%}', { 'array' => ['a', ' ', 'b', ' ', 'c'] })
-    assert_template_result('abc', '{%for item in array%}{{item}}{%endfor%}', { 'array' => ['a', '', 'b', '', 'c'] })
+    assert_template_result(' 1  2  3 ', '{%for item in array%} {{item}} {%endfor%}', 'array' => [1, 2, 3])
+    assert_template_result('123', '{%for item in array%}{{item}}{%endfor%}', 'array' => [1, 2, 3])
+    assert_template_result('123', '{% for item in array %}{{item}}{% endfor %}', 'array' => [1, 2, 3])
+    assert_template_result('abcd', '{%for item in array%}{{item}}{%endfor%}', 'array' => ['a', 'b', 'c', 'd'])
+    assert_template_result('a b c', '{%for item in array%}{{item}}{%endfor%}', 'array' => ['a', ' ', 'b', ' ', 'c'])
+    assert_template_result('abc', '{%for item in array%}{{item}}{%endfor%}', 'array' => ['a', '', 'b', '', 'c'])
  end

  def test_for_helpers
    assigns = { 'array' => [1, 2, 3] }
-    assert_template_result(
-      ' 1/3  2/3  3/3 ',
+    assert_template_result(' 1/3  2/3  3/3 ',
      '{%for item in array%} {{forloop.index}}/{{forloop.length}} {%endfor%}',
-      assigns,
-    )
+      assigns)
    assert_template_result(' 1  2  3 ', '{%for item in array%} {{forloop.index}} {%endfor%}', assigns)
    assert_template_result(' 0  1  2 ', '{%for item in array%} {{forloop.index0}} {%endfor%}', assigns)
    assert_template_result(' 2  1  0 ', '{%for item in array%} {{forloop.rindex0}} {%endfor%}', assigns)
@@ -88,17 +86,15 @@ HERE

  def test_for_and_if
    assigns = { 'array' => [1, 2, 3] }
-    assert_template_result(
-      '+--',
+    assert_template_result('+--',
      '{%for item in array%}{% if forloop.first %}+{% else %}-{% endif %}{%endfor%}',
-      assigns,
-    )
+      assigns)
  end

  def test_for_else
-    assert_template_result('+++', '{%for item in array%}+{%else%}-{%endfor%}', { 'array' => [1, 2, 3] })
-    assert_template_result('-',   '{%for item in array%}+{%else%}-{%endfor%}', { 'array' => [] })
-    assert_template_result('-',   '{%for item in array%}+{%else%}-{%endfor%}', { 'array' => nil })
+    assert_template_result('+++', '{%for item in array%}+{%else%}-{%endfor%}', 'array' => [1, 2, 3])
+    assert_template_result('-',   '{%for item in array%}+{%else%}-{%endfor%}', 'array' => [])
+    assert_template_result('-',   '{%for item in array%}+{%else%}-{%endfor%}', 'array' => nil)
  end

  def test_limiting
@@ -107,7 +103,6 @@ HERE
    assert_template_result('1234', '{%for i in array limit:4 %}{{ i }}{%endfor%}', assigns)
    assert_template_result('3456', '{%for i in array limit:4 offset:2 %}{{ i }}{%endfor%}', assigns)
    assert_template_result('3456', '{%for i in array limit: 4 offset: 2 %}{{ i }}{%endfor%}', assigns)
-    assert_template_result('3456', '{%for i in array, limit: 4, offset: 2 %}{{ i }}{%endfor%}', assigns)
  end

  def test_limiting_with_invalid_limit
@@ -268,19 +263,6 @@ HERE
    assert_template_result(expected, markup, assigns)
  end

-  def test_for_with_break_after_nested_loop
-    source = <<~LIQUID.chomp
-      {% for i in (1..2) -%}
-        {% for j in (1..2) -%}
-          {{ i }}-{{ j }},
-        {%- endfor -%}
-        {% break -%}
-      {% endfor -%}
-      after
-    LIQUID
-    assert_template_result("1-1,1-2,after", source)
-  end
-
  def test_for_with_continue
    assigns = { 'array' => { 'items' => [1, 2, 3, 4, 5] } }

@@ -329,20 +311,15 @@ HERE
    # ruby 1.9.3 no longer supports .each on String though we mimic
    # the functionality for backwards compatibility

-    assert_template_result(
-      'test string',
+    assert_template_result('test string',
      '{%for val in string%}{{val}}{%endfor%}',
-      { 'string' => "test string" },
-    )
+      'string' => "test string")

-    assert_template_result(
-      'test string',
+    assert_template_result('test string',
      '{%for val in string limit:1%}{{val}}{%endfor%}',
-      { 'string' => "test string" },
-    )
+      'string' => "test string")

-    assert_template_result(
-      'val-string-1-1-0-1-0-true-true-test string',
+    assert_template_result('val-string-1-1-0-1-0-true-true-test string',
      '{%for val in string%}' \
      '{{forloop.name}}-' \
      '{{forloop.index}}-' \
@@ -353,28 +330,23 @@ HERE
      '{{forloop.first}}-' \
      '{{forloop.last}}-' \
      '{{val}}{%endfor%}',
-      { 'string' => "test string" },
-    )
+      'string' => "test string")
  end

  def test_for_parentloop_references_parent_loop
-    assert_template_result(
-      '1.1 1.2 1.3 2.1 2.2 2.3 ',
+    assert_template_result('1.1 1.2 1.3 2.1 2.2 2.3 ',
      '{% for inner in outer %}{% for k in inner %}' \
      '{{ forloop.parentloop.index }}.{{ forloop.index }} ' \
      '{% endfor %}{% endfor %}',
-      { 'outer' => [[1, 1, 1], [1, 1, 1]] },
-    )
+      'outer' => [[1, 1, 1], [1, 1, 1]])
  end

  def test_for_parentloop_nil_when_not_present
-    assert_template_result(
-      '.1 .2 ',
+    assert_template_result('.1 .2 ',
      '{% for inner in outer %}' \
      '{{ forloop.parentloop.index }}.{{ forloop.index }} ' \
      '{% endfor %}',
-      { 'outer' => [[1, 1, 1], [1, 1, 1]] },
-    )
+      'outer' => [[1, 1, 1], [1, 1, 1]])
  end

  def test_inner_for_over_empty_input
@@ -382,7 +354,7 @@ HERE
  end

  def test_blank_string_not_iterable
-    assert_template_result('', "{% for char in characters %}I WILL NOT BE OUTPUT{% endfor %}", { 'characters' => '' })
+    assert_template_result('', "{% for char in characters %}I WILL NOT BE OUTPUT{% endfor %}", 'characters' => '')
  end

  def test_bad_variable_naming_in_for_loop
@@ -465,4 +437,30 @@ HERE

    assert(context.registers[:for_stack].empty?)
  end
+
+  def test_instrument_for_offset_continue
+    assert_usage_increment('for_offset_continue') do
+      Template.parse('{% for item in items offset:continue %}{{item}}{% endfor %}')
+    end
+
+    assert_usage_increment('for_offset_continue', times: 0) do
+      Template.parse('{% for item in items offset:2 %}{{item}}{% endfor %}')
+    end
+  end
+
+  def test_instrument_forloop_drop_name
+    assigns = { 'items' => [1, 2, 3, 4, 5] }
+
+    assert_usage_increment('forloop_drop_name', times: 5) do
+      Template.parse('{% for item in items %}{{forloop.name}}{% endfor %}').render!(assigns)
+    end
+
+    assert_usage_increment('forloop_drop_name', times: 0) do
+      Template.parse('{% for item in items %}{{forloop.index}}{% endfor %}').render!(assigns)
+    end
+
+    assert_usage_increment('forloop_drop_name', times: 0) do
+      Template.parse('{% for item in items %}{{item}}{% endfor %}').render!(assigns)
+    end
+  end
 end
@@ -7,10 +7,8 @@ class IfElseTagTest < Minitest::Test

  def test_if
    assert_template_result('  ', ' {% if false %} this text should not go into the output {% endif %} ')
-    assert_template_result(
-      '  this text should go into the output  ',
-      ' {% if true %} this text should go into the output {% endif %} ',
-    )
+    assert_template_result('  this text should go into the output  ',
+      ' {% if true %} this text should go into the output {% endif %} ')
    assert_template_result('  you rock ?', '{% if false %} you suck {% endif %} {% if true %} you rock {% endif %}?')
  end

@@ -26,23 +24,23 @@ class IfElseTagTest < Minitest::Test
  end

  def test_if_boolean
-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', { 'var' => true })
+    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => true)
  end

  def test_if_or
-    assert_template_result(' YES ', '{% if a or b %} YES {% endif %}', { 'a' => true, 'b' => true })
-    assert_template_result(' YES ', '{% if a or b %} YES {% endif %}', { 'a' => true, 'b' => false })
-    assert_template_result(' YES ', '{% if a or b %} YES {% endif %}', { 'a' => false, 'b' => true })
-    assert_template_result('',      '{% if a or b %} YES {% endif %}', { 'a' => false, 'b' => false })
+    assert_template_result(' YES ', '{% if a or b %} YES {% endif %}', 'a' => true, 'b' => true)
+    assert_template_result(' YES ', '{% if a or b %} YES {% endif %}', 'a' => true, 'b' => false)
+    assert_template_result(' YES ', '{% if a or b %} YES {% endif %}', 'a' => false, 'b' => true)
+    assert_template_result('',      '{% if a or b %} YES {% endif %}', 'a' => false, 'b' => false)

-    assert_template_result(' YES ', '{% if a or b or c %} YES {% endif %}', { 'a' => false, 'b' => false, 'c' => true })
-    assert_template_result('',      '{% if a or b or c %} YES {% endif %}', { 'a' => false, 'b' => false, 'c' => false })
+    assert_template_result(' YES ', '{% if a or b or c %} YES {% endif %}', 'a' => false, 'b' => false, 'c' => true)
+    assert_template_result('',      '{% if a or b or c %} YES {% endif %}', 'a' => false, 'b' => false, 'c' => false)
  end

  def test_if_or_with_operators
-    assert_template_result(' YES ', '{% if a == true or b == true %} YES {% endif %}', { 'a' => true, 'b' => true })
-    assert_template_result(' YES ', '{% if a == true or b == false %} YES {% endif %}', { 'a' => true, 'b' => true })
-    assert_template_result('', '{% if a == false or b == false %} YES {% endif %}', { 'a' => true, 'b' => true })
+    assert_template_result(' YES ', '{% if a == true or b == true %} YES {% endif %}', 'a' => true, 'b' => true)
+    assert_template_result(' YES ', '{% if a == true or b == false %} YES {% endif %}', 'a' => true, 'b' => true)
+    assert_template_result('', '{% if a == false or b == false %} YES {% endif %}', 'a' => true, 'b' => true)
  end

  def test_comparison_of_strings_containing_and_or_or
@@ -53,59 +51,55 @@ class IfElseTagTest < Minitest::Test

  def test_comparison_of_expressions_starting_with_and_or_or
    assigns = { 'order' => { 'items_count' => 0 }, 'android' => { 'name' => 'Roy' } }
-    assert_template_result(
-      "YES",
+    assert_template_result("YES",
      "{% if android.name == 'Roy' %}YES{% endif %}",
-      assigns,
-    )
-    assert_template_result(
-      "YES",
+      assigns)
+    assert_template_result("YES",
      "{% if order.items_count == 0 %}YES{% endif %}",
-      assigns,
-    )
+      assigns)
  end

  def test_if_and
    assert_template_result(' YES ', '{% if true and true %} YES {% endif %}')
    assert_template_result('', '{% if false and true %} YES {% endif %}')
-    assert_template_result('', '{% if true and false %} YES {% endif %}')
+    assert_template_result('', '{% if false and true %} YES {% endif %}')
  end

  def test_hash_miss_generates_false
-    assert_template_result('', '{% if foo.bar %} NO {% endif %}', { 'foo' => {} })
+    assert_template_result('', '{% if foo.bar %} NO {% endif %}', 'foo' => {})
  end

  def test_if_from_variable
-    assert_template_result('', '{% if var %} NO {% endif %}', { 'var' => false })
-    assert_template_result('', '{% if var %} NO {% endif %}', { 'var' => nil })
-    assert_template_result('', '{% if foo.bar %} NO {% endif %}', { 'foo' => { 'bar' => false } })
-    assert_template_result('', '{% if foo.bar %} NO {% endif %}', { 'foo' => {} })
-    assert_template_result('', '{% if foo.bar %} NO {% endif %}', { 'foo' => nil })
-    assert_template_result('', '{% if foo.bar %} NO {% endif %}', { 'foo' => true })
+    assert_template_result('', '{% if var %} NO {% endif %}', 'var' => false)
+    assert_template_result('', '{% if var %} NO {% endif %}', 'var' => nil)
+    assert_template_result('', '{% if foo.bar %} NO {% endif %}', 'foo' => { 'bar' => false })
+    assert_template_result('', '{% if foo.bar %} NO {% endif %}', 'foo' => {})
+    assert_template_result('', '{% if foo.bar %} NO {% endif %}', 'foo' => nil)
+    assert_template_result('', '{% if foo.bar %} NO {% endif %}', 'foo' => true)

-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', { 'var' => "text" })
-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', { 'var' => true })
-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', { 'var' => 1 })
-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', { 'var' => {} })
-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', { 'var' => [] })
+    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => "text")
+    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => true)
+    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => 1)
+    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => {})
+    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => [])
    assert_template_result(' YES ', '{% if "foo" %} YES {% endif %}')
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', { 'foo' => { 'bar' => true } })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', { 'foo' => { 'bar' => "text" } })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', { 'foo' => { 'bar' => 1 } })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', { 'foo' => { 'bar' => {} } })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', { 'foo' => { 'bar' => [] } })
+    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', 'foo' => { 'bar' => true })
+    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', 'foo' => { 'bar' => "text" })
+    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', 'foo' => { 'bar' => 1 })
+    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', 'foo' => { 'bar' => {} })
+    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', 'foo' => { 'bar' => [] })

-    assert_template_result(' YES ', '{% if var %} NO {% else %} YES {% endif %}', { 'var' => false })
-    assert_template_result(' YES ', '{% if var %} NO {% else %} YES {% endif %}', { 'var' => nil })
-    assert_template_result(' YES ', '{% if var %} YES {% else %} NO {% endif %}', { 'var' => true })
-    assert_template_result(' YES ', '{% if "foo" %} YES {% else %} NO {% endif %}', { 'var' => "text" })
+    assert_template_result(' YES ', '{% if var %} NO {% else %} YES {% endif %}', 'var' => false)
+    assert_template_result(' YES ', '{% if var %} NO {% else %} YES {% endif %}', 'var' => nil)
+    assert_template_result(' YES ', '{% if var %} YES {% else %} NO {% endif %}', 'var' => true)
+    assert_template_result(' YES ', '{% if "foo" %} YES {% else %} NO {% endif %}', 'var' => "text")

-    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', { 'foo' => { 'bar' => false } })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% else %} NO {% endif %}', { 'foo' => { 'bar' => true } })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% else %} NO {% endif %}', { 'foo' => { 'bar' => "text" } })
-    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', { 'foo' => { 'notbar' => true } })
-    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', { 'foo' => {} })
-    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', { 'notfoo' => { 'bar' => true } })
+    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', 'foo' => { 'bar' => false })
+    assert_template_result(' YES ', '{% if foo.bar %} YES {% else %} NO {% endif %}', 'foo' => { 'bar' => true })
+    assert_template_result(' YES ', '{% if foo.bar %} YES {% else %} NO {% endif %}', 'foo' => { 'bar' => "text" })
+    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', 'foo' => { 'notbar' => true })
+    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', 'foo' => {})
+    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', 'notfoo' => { 'bar' => true })
  end

  def test_nested_if
@@ -161,10 +155,8 @@ class IfElseTagTest < Minitest::Test
    original_op = Condition.operators['contains']
    Condition.operators['contains'] = :[]

-    assert_template_result(
-      'yes',
-      %({% if 'gnomeslab-and-or-liquid' contains 'gnomeslab-and-or-liquid' %}yes{% endif %}),
-    )
+    assert_template_result('yes',
+      %({% if 'gnomeslab-and-or-liquid' contains 'gnomeslab-and-or-liquid' %}yes{% endif %}))
  ensure
    Condition.operators['contains'] = original_op
  end
@@ -192,7 +184,7 @@ class IfElseTagTest < Minitest::Test
    tests.each do |vals, expected|
      a, b, c = vals
      assigns = { 'a' => a, 'b' => b, 'c' => c }
-      assert_template_result(expected.to_s, tpl, assigns, message: assigns.to_s)
+      assert_template_result(expected.to_s, tpl, assigns, assigns.to_s)
    end
  end
 end
@@ -3,13 +3,44 @@
 require 'test_helper'

 class TestFileSystem
-  PARTIALS = {
-    "nested_template" => "{% include 'header' %} {% include 'body' %} {% include 'footer' %}",
-    "body" => "body {% include 'body_detail' %}",
-  }
-
  def read_template_file(template_path)
-    PARTIALS[template_path] || template_path
+    case template_path
+    when "product"
+      "Product: {{ product.title }} "
+
+    when "product_alias"
+      "Product: {{ product.title }} "
+
+    when "locale_variables"
+      "Locale: {{echo1}} {{echo2}}"
+
+    when "variant"
+      "Variant: {{ variant.title }}"
+
+    when "nested_template"
+      "{% include 'header' %} {% include 'body' %} {% include 'footer' %}"
+
+    when "body"
+      "body {% include 'body_detail' %}"
+
+    when "nested_product_template"
+      "Product: {{ nested_product_template.title }} {%include 'details'%} "
+
+    when "recursively_nested_template"
+      "-{% include 'recursively_nested_template' %}"
+
+    when "pick_a_source"
+      "from TestFileSystem"
+
+    when 'assignments'
+      "{% assign foo = 'bar' %}"
+
+    when 'break'
+      "{% break %}"
+
+    else
+      template_path
+    end
  end
 end

@@ -50,129 +81,70 @@ class IncludeTagTest < Minitest::Test
  include Liquid

  def setup
-    @default_file_system = Liquid::Template.file_system
-  end
-
-  def teardown
-    Liquid::Template.file_system = @default_file_system
+    Liquid::Template.file_system = TestFileSystem.new
  end

  def test_include_tag_looks_for_file_system_in_registers_first
-    assert_equal(
-      'from OtherFileSystem',
-      Template.parse("{% include 'pick_a_source' %}").render!({}, registers: { file_system: OtherFileSystem.new }),
-    )
+    assert_equal('from OtherFileSystem',
+      Template.parse("{% include 'pick_a_source' %}").render!({}, registers: { file_system: OtherFileSystem.new }))
  end

  def test_include_tag_with
-    assert_template_result(
-      "Product: Draft 151cm ",
-      "{% include 'product' with products[0] %}",
-      { "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }] },
-      partials: { "product" => "Product: {{ product.title }} " },
-    )
+    assert_template_result("Product: Draft 151cm ",
+      "{% include 'product' with products[0] %}", "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }])
  end

  def test_include_tag_with_alias
-    assert_template_result(
-      "Product: Draft 151cm ",
-      "{% include 'product_alias' with products[0] as product %}",
-      { "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }] },
-      partials: { "product_alias" => "Product: {{ product.title }} " },
-    )
+    assert_template_result("Product: Draft 151cm ",
+      "{% include 'product_alias' with products[0] as product %}", "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }])
  end

  def test_include_tag_for_alias
-    assert_template_result(
-      "Product: Draft 151cm Product: Element 155cm ",
-      "{% include 'product_alias' for products as product %}",
-      { "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }] },
-      partials: { "product_alias" => "Product: {{ product.title }} " },
-    )
+    assert_template_result("Product: Draft 151cm Product: Element 155cm ",
+      "{% include 'product_alias' for products as product %}", "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }])
  end

  def test_include_tag_with_default_name
-    assert_template_result(
-      "Product: Draft 151cm ",
-      "{% include 'product' %}",
-      { "product" => { 'title' => 'Draft 151cm' } },
-      partials: { "product" => "Product: {{ product.title }} " },
-    )
+    assert_template_result("Product: Draft 151cm ",
+      "{% include 'product' %}", "product" => { 'title' => 'Draft 151cm' })
  end

  def test_include_tag_for
-    assert_template_result(
-      "Product: Draft 151cm Product: Element 155cm ",
-      "{% include 'product' for products %}",
-      { "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }] },
-      partials: { "product" => "Product: {{ product.title }} " },
-    )
+    assert_template_result("Product: Draft 151cm Product: Element 155cm ",
+      "{% include 'product' for products %}", "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }])
  end

  def test_include_tag_with_local_variables
-    assert_template_result(
-      "Locale: test123 ",
-      "{% include 'locale_variables' echo1: 'test123' %}",
-      partials: { "locale_variables" => "Locale: {{echo1}} {{echo2}}" },
-    )
+    assert_template_result("Locale: test123 ", "{% include 'locale_variables' echo1: 'test123' %}")
  end

  def test_include_tag_with_multiple_local_variables
-    assert_template_result(
-      "Locale: test123 test321",
-      "{% include 'locale_variables' echo1: 'test123', echo2: 'test321' %}",
-      partials: { "locale_variables" => "Locale: {{echo1}} {{echo2}}" },
-    )
+    assert_template_result("Locale: test123 test321",
+      "{% include 'locale_variables' echo1: 'test123', echo2: 'test321' %}")
  end

  def test_include_tag_with_multiple_local_variables_from_context
-    assert_template_result(
-      "Locale: test123 test321",
+    assert_template_result("Locale: test123 test321",
      "{% include 'locale_variables' echo1: echo1, echo2: more_echos.echo2 %}",
-      { 'echo1' => 'test123', 'more_echos' => { "echo2" => 'test321' } },
-      partials: { "locale_variables" => "Locale: {{echo1}} {{echo2}}" },
-    )
+      'echo1' => 'test123', 'more_echos' => { "echo2" => 'test321' })
  end

  def test_included_templates_assigns_variables
-    assert_template_result(
-      "bar",
-      "{% include 'assignments' %}{{ foo }}",
-      partials: { 'assignments' => "{% assign foo = 'bar' %}" },
-    )
+    assert_template_result("bar", "{% include 'assignments' %}{{ foo }}")
  end

  def test_nested_include_tag
-    partials = { "body" => "body {% include 'body_detail' %}", "body_detail" => "body_detail" }
-    assert_template_result("body body_detail", "{% include 'body' %}", partials: partials)
+    assert_template_result("body body_detail", "{% include 'body' %}")

-    partials = partials.merge({
-      "nested_template" => "{% include 'header' %} {% include 'body' %} {% include 'footer' %}",
-      "header" => "header",
-      "footer" => "footer",
-    })
-    assert_template_result("header body body_detail footer", "{% include 'nested_template' %}", partials: partials)
+    assert_template_result("header body body_detail footer", "{% include 'nested_template' %}")
  end

  def test_nested_include_with_variable
-    partials = {
-      "nested_product_template" => "Product: {{ nested_product_template.title }} {%include 'details'%} ",
-      "details" => "details",
-    }
+    assert_template_result("Product: Draft 151cm details ",
+      "{% include 'nested_product_template' with product %}", "product" => { "title" => 'Draft 151cm' })

-    assert_template_result(
-      "Product: Draft 151cm details ",
-      "{% include 'nested_product_template' with product %}",
-      { "product" => { "title" => 'Draft 151cm' } },
-      partials: partials,
-    )
-
-    assert_template_result(
-      "Product: Draft 151cm details Product: Element 155cm details ",
-      "{% include 'nested_product_template' for products %}",
-      { "products" => [{ "title" => 'Draft 151cm' }, { "title" => 'Element 155cm' }] },
-      partials: partials,
-    )
+    assert_template_result("Product: Draft 151cm details Product: Element 155cm details ",
+      "{% include 'nested_product_template' for products %}", "products" => [{ "title" => 'Draft 151cm' }, { "title" => 'Element 155cm' }])
  end

  def test_recursively_included_template_does_not_produce_endless_loop
@@ -190,68 +162,41 @@ class IncludeTagTest < Minitest::Test
  end

  def test_dynamically_choosen_template
-    assert_template_result(
-      "Test123",
-      "{% include template %}",
-      { "template" => 'Test123' },
-      partials: { "Test123" => "Test123" },
-    )
+    assert_template_result("Test123", "{% include template %}", "template" => 'Test123')
+    assert_template_result("Test321", "{% include template %}", "template" => 'Test321')

-    assert_template_result(
-      "Test321",
-      "{% include template %}",
-      { "template" => 'Test321' },
-      partials: { "Test321" => "Test321" },
-    )
-
-    assert_template_result(
-      "Product: Draft 151cm ",
-      "{% include template for product %}",
-      { "template" => 'product', 'product' => { 'title' => 'Draft 151cm' } },
-      partials: { "product" => "Product: {{ product.title }} " },
-    )
+    assert_template_result("Product: Draft 151cm ", "{% include template for product %}",
+      "template" => 'product', 'product' => { 'title' => 'Draft 151cm' })
  end

  def test_include_tag_caches_second_read_of_same_partial
    file_system = CountingFileSystem.new
-    assert_equal(
-      'from CountingFileSystemfrom CountingFileSystem',
-      Template.parse("{% include 'pick_a_source' %}{% include 'pick_a_source' %}").render!({}, registers: { file_system: file_system }),
-    )
+    assert_equal('from CountingFileSystemfrom CountingFileSystem',
+      Template.parse("{% include 'pick_a_source' %}{% include 'pick_a_source' %}").render!({}, registers: { file_system: file_system }))
    assert_equal(1, file_system.count)
  end

  def test_include_tag_doesnt_cache_partials_across_renders
    file_system = CountingFileSystem.new
-    assert_equal(
-      'from CountingFileSystem',
-      Template.parse("{% include 'pick_a_source' %}").render!({}, registers: { file_system: file_system }),
-    )
+    assert_equal('from CountingFileSystem',
+      Template.parse("{% include 'pick_a_source' %}").render!({}, registers: { file_system: file_system }))
    assert_equal(1, file_system.count)

-    assert_equal(
-      'from CountingFileSystem',
-      Template.parse("{% include 'pick_a_source' %}").render!({}, registers: { file_system: file_system }),
-    )
+    assert_equal('from CountingFileSystem',
+      Template.parse("{% include 'pick_a_source' %}").render!({}, registers: { file_system: file_system }))
    assert_equal(2, file_system.count)
  end

  def test_include_tag_within_if_statement
-    assert_template_result(
-      "foo_if_true",
-      "{% if true %}{% include 'foo_if_true' %}{% endif %}",
-      partials: { "foo_if_true" => "foo_if_true" },
-    )
+    assert_template_result("foo_if_true", "{% if true %}{% include 'foo_if_true' %}{% endif %}")
  end

  def test_custom_include_tag
    original_tag = Liquid::Template.tags['include']
    Liquid::Template.tags['include'] = CustomInclude
    begin
-      assert_equal(
-        "custom_foo",
-        Template.parse("{% include 'custom_foo' %}").render!,
-      )
+      assert_equal("custom_foo",
+        Template.parse("{% include 'custom_foo' %}").render!)
    ensure
      Liquid::Template.tags['include'] = original_tag
    end
@@ -261,10 +206,8 @@ class IncludeTagTest < Minitest::Test
    original_tag = Liquid::Template.tags['include']
    Liquid::Template.tags['include'] = CustomInclude
    begin
-      assert_equal(
-        "custom_foo_if_true",
-        Template.parse("{% if true %}{% include 'custom_foo_if_true' %}{% endif %}").render!,
-      )
+      assert_equal("custom_foo_if_true",
+        Template.parse("{% if true %}{% include 'custom_foo_if_true' %}{% endif %}").render!)
    ensure
      Liquid::Template.tags['include'] = original_tag
    end
@@ -279,7 +222,6 @@ class IncludeTagTest < Minitest::Test
  end

  def test_passing_options_to_included_templates
-    Liquid::Template.file_system = TestFileSystem.new
    assert_raises(Liquid::SyntaxError) do
      Template.parse("{% include template %}", error_mode: :strict).render!("template" => '{{ "X" || downcase }}')
    end
@@ -295,53 +237,25 @@ class IncludeTagTest < Minitest::Test
  end

  def test_render_raise_argument_error_when_template_is_undefined
-    assert_template_result(
-      "Liquid error (line 1): Argument error in tag 'include' - Illegal template name",
-      "{% include undefined_variable %}",
-      render_errors: true,
-    )
-
-    assert_template_result(
-      "Liquid error (line 1): Argument error in tag 'include' - Illegal template name",
-      "{% include nil %}",
-      render_errors: true,
-    )
-  end
-
-  def test_render_raise_argument_error_when_template_is_not_a_string
-    assert_template_result(
-      "Liquid error (line 1): Argument error in tag 'include' - Illegal template name",
-      "{% include 123 %}",
-      render_errors: true,
-    )
+    assert_raises(Liquid::ArgumentError) do
+      template = Liquid::Template.parse('{% include undefined_variable %}')
+      template.render!
+    end
+    assert_raises(Liquid::ArgumentError) do
+      template = Liquid::Template.parse('{% include nil %}')
+      template.render!
+    end
  end

  def test_including_via_variable_value
-    assert_template_result(
-      "from TestFileSystem",
-      "{% assign page = 'pick_a_source' %}{% include page %}",
-      partials: { "pick_a_source" => "from TestFileSystem" },
-    )
+    assert_template_result("from TestFileSystem", "{% assign page = 'pick_a_source' %}{% include page %}")

-    partials = { "product" => "Product: {{ product.title }} " }
+    assert_template_result("Product: Draft 151cm ", "{% assign page = 'product' %}{% include page %}", "product" => { 'title' => 'Draft 151cm' })

-    assert_template_result(
-      "Product: Draft 151cm ",
-      "{% assign page = 'product' %}{% include page %}",
-      { "product" => { 'title' => 'Draft 151cm' } },
-      partials: partials,
-    )
-
-    assert_template_result(
-      "Product: Draft 151cm ",
-      "{% assign page = 'product' %}{% include page for foo %}",
-      { "foo" => { 'title' => 'Draft 151cm' } },
-      partials: partials,
-    )
+    assert_template_result("Product: Draft 151cm ", "{% assign page = 'product' %}{% include page for foo %}", "foo" => { 'title' => 'Draft 151cm' })
  end

  def test_including_with_strict_variables
-    Liquid::Template.file_system = StubFileSystem.new({ "simple" => "simple" })
    template = Liquid::Template.parse("{% include 'simple' %}", error_mode: :warn)
    template.render(nil, strict_variables: true)

@@ -350,31 +264,6 @@ class IncludeTagTest < Minitest::Test

  def test_break_through_include
    assert_template_result("1", "{% for i in (1..3) %}{{ i }}{% break %}{{ i }}{% endfor %}")
-    assert_template_result(
-      "1",
-      "{% for i in (1..3) %}{{ i }}{% include 'break' %}{{ i }}{% endfor %}",
-      partials: { 'break' => "{% break %}" },
-    )
-  end
-
-  def test_render_tag_renders_error_with_template_name
-    assert_template_result(
-      'Liquid error (foo line 1): standard error',
-      "{% include 'foo' with errors %}",
-      { 'errors' => ErrorDrop.new },
-      partials: { 'foo' => '{{ foo.standard_error }}' },
-      render_errors: true,
-    )
-  end
-
-  def test_render_tag_renders_error_with_template_name_from_template_factory
-    assert_template_result(
-      'Liquid error (some/path/foo line 1): standard error',
-      "{% include 'foo' with errors %}",
-      { 'errors' => ErrorDrop.new },
-      partials: { 'foo' => '{{ foo.standard_error }}' },
-      template_factory: StubTemplateFactory.new,
-      render_errors: true,
-    )
+    assert_template_result("1", "{% for i in (1..3) %}{{ i }}{% include 'break' %}{{ i }}{% endfor %}")
  end
 end # IncludeTagTest
@@ -6,25 +6,20 @@ class IncrementTagTest < Minitest::Test
  include Liquid

  def test_inc
-    assert_template_result('0 1', '{%increment port %} {{ port }}')
-    assert_template_result(' 0 1 2', '{{port}} {%increment port %} {%increment port%} {{port}}')
-    assert_template_result(
-      '0 0 1 2 1',
+    assert_template_result('0', '{%increment port %}', {})
+    assert_template_result('0 1', '{%increment port %} {%increment port%}', {})
+    assert_template_result('0 0 1 2 1',
      '{%increment port %} {%increment starboard%} ' \
      '{%increment port %} {%increment port%} ' \
-      '{%increment starboard %}',
-    )
+      '{%increment starboard %}', {})
  end

  def test_dec
-    assert_template_result('-1 -1', '{%decrement port %} {{ port }}', { 'port' => 10 })
-    assert_template_result(' -1 -2 -2', '{{port}} {%decrement port %} {%decrement port%} {{port}}')
-    assert_template_result(
-      '0 1 2 0 3 1 1 3',
-      '{%increment starboard %} {%increment starboard%} {%increment starboard%} ' \
+    assert_template_result('9', '{%decrement port %}', 'port' => 10)
+    assert_template_result('-1 -2', '{%decrement port %} {%decrement port%}', {})
+    assert_template_result('1 5 2 2 5',
      '{%increment port %} {%increment starboard%} ' \
      '{%increment port %} {%decrement port%} ' \
-      '{%decrement starboard %}',
-    )
+      '{%decrement starboard %}', 'port' => 1, 'starboard' => 5)
  end
 end
@@ -1,69 +0,0 @@
-# frozen_string_literal: true
-
-require 'test_helper'
-
-class InlineCommentTest < Minitest::Test
-  include Liquid
-
-  def test_inline_comment_returns_nothing
-    assert_template_result('', '{%- # this is an inline comment -%}')
-    assert_template_result('', '{%-# this is an inline comment -%}')
-    assert_template_result('', '{% # this is an inline comment %}')
-    assert_template_result('', '{%# this is an inline comment %}')
-  end
-
-  def test_inline_comment_does_not_require_a_space_after_the_pound_sign
-    assert_template_result('', '{%#this is an inline comment%}')
-  end
-
-  def test_liquid_inline_comment_returns_nothing
-    assert_template_result('Hey there, how are you doing today?', <<~LIQUID)
-      {%- liquid
-        # This is how you'd write a block comment in a liquid tag.
-        # It looks a lot like what you'd have in ruby.
-
-        # You can use it as inline documentation in your
-        # liquid blocks to explain why you're doing something.
-        echo "Hey there, "
-
-        # It won't affect the output.
-        echo "how are you doing today?"
-      -%}
-    LIQUID
-  end
-
-  def test_inline_comment_can_be_written_on_multiple_lines
-    assert_template_result('', <<~LIQUID)
-      {%-
-        # That kind of block comment is also allowed.
-        # It would only be a stylistic difference.
-
-        # Much like JavaScript's /* */ comments and their
-        # leading * on new lines.
-      -%}
-    LIQUID
-  end
-
-  def test_inline_comment_multiple_pound_signs
-    assert_template_result('', <<~LIQUID)
-      {%- liquid
-        ######################################
-        # We support comments like this too. #
-        ######################################
-      -%}
-    LIQUID
-  end
-
-  def test_inline_comments_require_the_pound_sign_on_every_new_line
-    assert_match_syntax_error("Each line of comments must be prefixed by the '#' character", <<~LIQUID)
-      {%-
-        # some comment
-        echo 'hello world'
-      -%}
-    LIQUID
-  end
-
-  def test_inline_comment_does_not_support_nested_tags
-    assert_template_result(' -%}', "{%- # {% echo 'hello world' %} -%}")
-  end
-end
@@ -6,13 +6,13 @@ class LiquidTagTest < Minitest::Test
  include Liquid

  def test_liquid_tag
-    assert_template_result('1 2 3', <<~LIQUID, { 'array' => [1, 2, 3] })
+    assert_template_result('1 2 3', <<~LIQUID, 'array' => [1, 2, 3])
      {%- liquid
        echo array | join: " "
      -%}
    LIQUID

-    assert_template_result('1 2 3', <<~LIQUID, { 'array' => [1, 2, 3] })
+    assert_template_result('1 2 3', <<~LIQUID, 'array' => [1, 2, 3])
      {%- liquid
        for value in array
          echo value
@@ -23,7 +23,7 @@ class LiquidTagTest < Minitest::Test
      -%}
    LIQUID

-    assert_template_result('4 8 12 6', <<~LIQUID, { 'array' => [1, 2, 3] })
+    assert_template_result('4 8 12 6', <<~LIQUID, 'array' => [1, 2, 3])
      {%- liquid
        for value in array
          assign double_value = value | times: 2
@@ -6,16 +6,12 @@ class RawTagTest < Minitest::Test
  include Liquid

  def test_tag_in_raw
-    assert_template_result(
-      '{% comment %} test {% endcomment %}',
-      '{% raw %}{% comment %} test {% endcomment %}{% endraw %}',
-    )
+    assert_template_result('{% comment %} test {% endcomment %}',
+      '{% raw %}{% comment %} test {% endcomment %}{% endraw %}')
  end

  def test_output_in_raw
-    assert_template_result('>{{ test }}<', '> {%- raw -%}{{ test }}{%- endraw -%} <')
-    assert_template_result("> inner  <", "> {%- raw -%} inner {%- endraw %} <")
-    assert_template_result("> inner <", "> {%- raw -%} inner {%- endraw -%} <")
+    assert_template_result('{{ test }}', '{% raw %}{{ test }}{% endraw %}')
  end

  def test_open_tag_in_raw
@@ -6,79 +6,53 @@ class RenderTagTest < Minitest::Test
  include Liquid

  def test_render_with_no_arguments
-    assert_template_result(
-      'rendered content',
-      '{% render "source" %}',
-      partials: { 'source' => 'rendered content' },
-    )
+    Liquid::Template.file_system = StubFileSystem.new('source' => 'rendered content')
+    assert_template_result('rendered content', '{% render "source" %}')
  end

  def test_render_tag_looks_for_file_system_in_registers_first
-    assert_template_result(
-      'from register file system',
-      '{% render "pick_a_source" %}',
-      partials: { 'pick_a_source' => 'from register file system' },
-    )
+    file_system = StubFileSystem.new('pick_a_source' => 'from register file system')
+    assert_equal('from register file system',
+      Template.parse('{% render "pick_a_source" %}').render!({}, registers: { file_system: file_system }))
  end

  def test_render_passes_named_arguments_into_inner_scope
-    assert_template_result(
-      'My Product',
-      '{% render "product", inner_product: outer_product %}',
-      { 'outer_product' => { 'title' => 'My Product' } },
-      partials: { 'product' => '{{ inner_product.title }}' },
-    )
+    Liquid::Template.file_system = StubFileSystem.new('product' => '{{ inner_product.title }}')
+    assert_template_result('My Product', '{% render "product", inner_product: outer_product %}',
+      'outer_product' => { 'title' => 'My Product' })
  end

  def test_render_accepts_literals_as_arguments
-    assert_template_result(
-      '123',
-      '{% render "snippet", price: 123 %}',
-      partials: { 'snippet' => '{{ price }}' },
-    )
+    Liquid::Template.file_system = StubFileSystem.new('snippet' => '{{ price }}')
+    assert_template_result('123', '{% render "snippet", price: 123 %}')
  end

  def test_render_accepts_multiple_named_arguments
-    assert_template_result(
-      '1 2',
-      '{% render "snippet", one: 1, two: 2 %}',
-      partials: { 'snippet' => '{{ one }} {{ two }}' },
-    )
+    Liquid::Template.file_system = StubFileSystem.new('snippet' => '{{ one }} {{ two }}')
+    assert_template_result('1 2', '{% render "snippet", one: 1, two: 2 %}')
  end

  def test_render_does_not_inherit_parent_scope_variables
-    assert_template_result(
-      '',
-      '{% assign outer_variable = "should not be visible" %}{% render "snippet" %}',
-      partials: { 'snippet' => '{{ outer_variable }}' },
-    )
+    Liquid::Template.file_system = StubFileSystem.new('snippet' => '{{ outer_variable }}')
+    assert_template_result('', '{% assign outer_variable = "should not be visible" %}{% render "snippet" %}')
  end

  def test_render_does_not_inherit_variable_with_same_name_as_snippet
-    assert_template_result(
-      '',
-      "{% assign snippet = 'should not be visible' %}{% render 'snippet' %}",
-      partials: { 'snippet' => '{{ snippet }}' },
-    )
+    Liquid::Template.file_system = StubFileSystem.new('snippet' => '{{ snippet }}')
+    assert_template_result('', "{% assign snippet = 'should not be visible' %}{% render 'snippet' %}")
  end

  def test_render_does_not_mutate_parent_scope
-    assert_template_result(
-      '',
-      "{% render 'snippet' %}{{ inner }}",
-      partials: { 'snippet' => '{% assign inner = 1 %}' },
-    )
+    Liquid::Template.file_system = StubFileSystem.new('snippet' => '{% assign inner = 1 %}')
+    assert_template_result('', "{% render 'snippet' %}{{ inner }}")
  end

  def test_nested_render_tag
-    assert_template_result(
-      'one two',
-      "{% render 'one' %}",
-      partials: {
-        'one' => "one {% render 'two' %}",
-        'two' => 'two',
-      },
+    Liquid::Template.file_system = StubFileSystem.new(
+      'one' => "one {% render 'two' %}",
+      'two' => 'two'
    )
+    assert_template_result('one two', "{% render 'one' %}")
  end

  def test_recursively_rendered_template_does_not_produce_endless_loop
@@ -99,190 +73,141 @@ class RenderTagTest < Minitest::Test
  end

  def test_dynamically_choosen_templates_are_not_allowed
-    assert_syntax_error("{% assign name = 'snippet' %}{% render name %}")
+    Liquid::Template.file_system = StubFileSystem.new('snippet' => 'should not be rendered')
+
+    assert_raises(Liquid::SyntaxError) do
+      Liquid::Template.parse("{% assign name = 'snippet' %}{% render name %}")
+    end
  end

  def test_include_tag_caches_second_read_of_same_partial
    file_system = StubFileSystem.new('snippet' => 'echo')
-    assert_equal(
-      'echoecho',
+    assert_equal('echoecho',
      Template.parse('{% render "snippet" %}{% render "snippet" %}')
-      .render!({}, registers: { file_system: file_system }),
-    )
+      .render!({}, registers: { file_system: file_system }))
    assert_equal(1, file_system.file_read_count)
  end

  def test_render_tag_doesnt_cache_partials_across_renders
    file_system = StubFileSystem.new('snippet' => 'my message')

-    assert_equal(
-      'my message',
-      Template.parse('{% include "snippet" %}').render!({}, registers: { file_system: file_system }),
-    )
+    assert_equal('my message',
+      Template.parse('{% include "snippet" %}').render!({}, registers: { file_system: file_system }))
    assert_equal(1, file_system.file_read_count)

-    assert_equal(
-      'my message',
-      Template.parse('{% include "snippet" %}').render!({}, registers: { file_system: file_system }),
-    )
+    assert_equal('my message',
+      Template.parse('{% include "snippet" %}').render!({}, registers: { file_system: file_system }))
    assert_equal(2, file_system.file_read_count)
  end

  def test_render_tag_within_if_statement
-    assert_template_result(
-      'my message',
-      '{% if true %}{% render "snippet" %}{% endif %}',
-      partials: { 'snippet' => 'my message' },
-    )
+    Liquid::Template.file_system = StubFileSystem.new('snippet' => 'my message')
+    assert_template_result('my message', '{% if true %}{% render "snippet" %}{% endif %}')
  end

  def test_break_through_render
-    options = { partials: { 'break' => '{% break %}' } }
-    assert_template_result('1', '{% for i in (1..3) %}{{ i }}{% break %}{{ i }}{% endfor %}', **options)
-    assert_template_result('112233', '{% for i in (1..3) %}{{ i }}{% render "break" %}{{ i }}{% endfor %}', **options)
+    Liquid::Template.file_system = StubFileSystem.new('break' => '{% break %}')
+    assert_template_result('1', '{% for i in (1..3) %}{{ i }}{% break %}{{ i }}{% endfor %}')
+    assert_template_result('112233', '{% for i in (1..3) %}{{ i }}{% render "break" %}{{ i }}{% endfor %}')
  end

  def test_increment_is_isolated_between_renders
-    assert_template_result(
-      '010',
-      '{% increment %}{% increment %}{% render "incr" %}',
-      partials: { 'incr' => '{% increment %}' },
-    )
+    Liquid::Template.file_system = StubFileSystem.new('incr' => '{% increment %}')
+    assert_template_result('010', '{% increment %}{% increment %}{% render "incr" %}')
  end

  def test_decrement_is_isolated_between_renders
-    assert_template_result(
-      '-1-2-1',
-      '{% decrement %}{% decrement %}{% render "decr" %}',
-      partials: { 'decr' => '{% decrement %}' },
-    )
+    Liquid::Template.file_system = StubFileSystem.new('decr' => '{% decrement %}')
+    assert_template_result('-1-2-1', '{% decrement %}{% decrement %}{% render "decr" %}')
  end

  def test_includes_will_not_render_inside_render_tag
-    assert_template_result(
-      'Liquid error (test_include line 1): include usage is not allowed in this context',
-      '{% render "test_include" %}',
-      render_errors: true,
-      partials: {
-        'foo' => 'bar',
-        'test_include' => '{% include "foo" %}',
-      },
+    Liquid::Template.file_system = StubFileSystem.new(
+      'foo' => 'bar',
+      'test_include' => '{% include "foo" %}'
    )
+
+    exc = assert_raises(Liquid::DisabledError) do
+      Liquid::Template.parse('{% render "test_include" %}').render!
+    end
+    assert_equal('Liquid error: include usage is not allowed in this context', exc.message)
  end

  def test_includes_will_not_render_inside_nested_sibling_tags
-    assert_template_result(
-      "Liquid error (test_include line 1): include usage is not allowed in this context" \
-        "Liquid error (nested_render_with_sibling_include line 1): include usage is not allowed in this context",
-      '{% render "nested_render_with_sibling_include" %}',
-      partials: {
-        'foo' => 'bar',
-        'nested_render_with_sibling_include' => '{% render "test_include" %}{% include "foo" %}',
-        'test_include' => '{% include "foo" %}',
-      },
-      render_errors: true,
+    Liquid::Template.file_system = StubFileSystem.new(
+      'foo' => 'bar',
+      'nested_render_with_sibling_include' => '{% render "test_include" %}{% include "foo" %}',
+      'test_include' => '{% include "foo" %}'
    )
+
+    output = Liquid::Template.parse('{% render "nested_render_with_sibling_include" %}').render
+    assert_equal('Liquid error: include usage is not allowed in this contextLiquid error: include usage is not allowed in this context', output)
  end

  def test_render_tag_with
-    assert_template_result(
-      "Product: Draft 151cm ",
-      "{% render 'product' with products[0] %}",
-      { "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }] },
-      partials: {
-        'product' => "Product: {{ product.title }} ",
-        'product_alias' => "Product: {{ product.title }} ",
-      },
+    Liquid::Template.file_system = StubFileSystem.new(
+      'product' => "Product: {{ product.title }} ",
+      'product_alias' => "Product: {{ product.title }} ",
    )
+
+    assert_template_result("Product: Draft 151cm ",
+      "{% render 'product' with products[0] %}", "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }])
  end

  def test_render_tag_with_alias
-    assert_template_result(
-      "Product: Draft 151cm ",
-      "{% render 'product_alias' with products[0] as product %}",
-      { "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }] },
-      partials: {
-        'product' => "Product: {{ product.title }} ",
-        'product_alias' => "Product: {{ product.title }} ",
-      },
+    Liquid::Template.file_system = StubFileSystem.new(
+      'product' => "Product: {{ product.title }} ",
+      'product_alias' => "Product: {{ product.title }} ",
    )
+
+    assert_template_result("Product: Draft 151cm ",
+      "{% render 'product_alias' with products[0] as product %}", "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }])
  end

  def test_render_tag_for_alias
-    assert_template_result(
-      "Product: Draft 151cm Product: Element 155cm ",
-      "{% render 'product_alias' for products as product %}",
-      { "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }] },
-      partials: {
-        'product' => "Product: {{ product.title }} ",
-        'product_alias' => "Product: {{ product.title }} ",
-      },
+    Liquid::Template.file_system = StubFileSystem.new(
+      'product' => "Product: {{ product.title }} ",
+      'product_alias' => "Product: {{ product.title }} ",
    )
+
+    assert_template_result("Product: Draft 151cm Product: Element 155cm ",
+      "{% render 'product_alias' for products as product %}", "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }])
  end

  def test_render_tag_for
-    assert_template_result(
-      "Product: Draft 151cm Product: Element 155cm ",
-      "{% render 'product' for products %}",
-      { "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }] },
-      partials: {
-        'product' => "Product: {{ product.title }} ",
-        'product_alias' => "Product: {{ product.title }} ",
-      },
+    Liquid::Template.file_system = StubFileSystem.new(
+      'product' => "Product: {{ product.title }} ",
+      'product_alias' => "Product: {{ product.title }} ",
    )
+
+    assert_template_result("Product: Draft 151cm Product: Element 155cm ",
+      "{% render 'product' for products %}", "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }])
  end

  def test_render_tag_forloop
-    assert_template_result(
-      "Product: Draft 151cm first  index:1 Product: Element 155cm  last index:2 ",
-      "{% render 'product' for products %}",
-      { "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }] },
-      partials: {
-        'product' => "Product: {{ product.title }} {% if forloop.first %}first{% endif %} {% if forloop.last %}last{% endif %} index:{{ forloop.index }} ",
-      },
+    Liquid::Template.file_system = StubFileSystem.new(
+      'product' => "Product: {{ product.title }} {% if forloop.first %}first{% endif %} {% if forloop.last %}last{% endif %} index:{{ forloop.index }} ",
    )
+
+    assert_template_result("Product: Draft 151cm first  index:1 Product: Element 155cm  last index:2 ",
+      "{% render 'product' for products %}", "products" => [{ 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' }])
  end

  def test_render_tag_for_drop
-    assert_template_result(
-      "123",
-      "{% render 'loop' for loop as value %}",
-      { "loop" => TestEnumerable.new },
-      partials: {
-        'loop' => "{{ value.foo }}",
-      },
+    Liquid::Template.file_system = StubFileSystem.new(
+      'loop' => "{{ value.foo }}",
    )
+
+    assert_template_result("123",
+      "{% render 'loop' for loop as value %}", "loop" => TestEnumerable.new)
  end

  def test_render_tag_with_drop
-    assert_template_result(
-      "TestEnumerable",
-      "{% render 'loop' with loop as value %}",
-      { "loop" => TestEnumerable.new },
-      partials: {
-        'loop' => "{{ value }}",
-      },
+    Liquid::Template.file_system = StubFileSystem.new(
+      'loop' => "{{ value }}",
    )
-  end

-  def test_render_tag_renders_error_with_template_name
-    assert_template_result(
-      'Liquid error (foo line 1): standard error',
-      "{% render 'foo' with errors %}",
-      { 'errors' => ErrorDrop.new },
-      partials: { 'foo' => '{{ foo.standard_error }}' },
-      render_errors: true,
-    )
-  end
-
-  def test_render_tag_renders_error_with_template_name_from_template_factory
-    assert_template_result(
-      'Liquid error (some/path/foo line 1): standard error',
-      "{% render 'foo' with errors %}",
-      { 'errors' => ErrorDrop.new },
-      partials: { 'foo' => '{{ foo.standard_error }}' },
-      template_factory: StubTemplateFactory.new,
-      render_errors: true,
-    )
+    assert_template_result("TestEnumerable",
+      "{% render 'loop' with loop as value %}", "loop" => TestEnumerable.new)
  end
 end
@@ -6,10 +6,8 @@ class StandardTagTest < Minitest::Test
  include Liquid

  def test_no_transform
-    assert_template_result(
-      'this text should come out of the template without change...',
-      'this text should come out of the template without change...',
-    )
+    assert_template_result('this text should come out of the template without change...',
+      'this text should come out of the template without change...')

    assert_template_result('blah', 'blah')
    assert_template_result('<blah>', '<blah>')
@@ -22,10 +20,8 @@ class StandardTagTest < Minitest::Test
  end

  def test_has_a_block_which_does_nothing
-    assert_template_result(
-      %(the comment block should be removed  .. right?),
-      %(the comment block should be removed {%comment%} be gone.. {%endcomment%} .. right?),
-    )
+    assert_template_result(%(the comment block should be removed  .. right?),
+      %(the comment block should be removed {%comment%} be gone.. {%endcomment%} .. right?))

    assert_template_result('', '{%comment%}{%endcomment%}')
    assert_template_result('', '{%comment%}{% endcomment %}')
@@ -40,8 +36,6 @@ class StandardTagTest < Minitest::Test
    assert_template_result('', '{%comment%}{% endif %}{%endcomment%}')
    assert_template_result('', '{% comment %}{% endwhatever %}{% endcomment %}')
    assert_template_result('', '{% comment %}{% raw %} {{%%%%}}  }} { {% endcomment %} {% comment {% endraw %} {% endcomment %}')
-    assert_template_result('', '{% comment %}{% " %}{% endcomment %}')
-    assert_template_result('', '{% comment %}{%%}{% endcomment %}')

    assert_template_result('foobar', 'foo{%comment%}comment{%endcomment%}bar')
    assert_template_result('foobar', 'foo{% comment %}comment{% endcomment %}bar')
@@ -68,199 +62,160 @@ class StandardTagTest < Minitest::Test

  def test_capture
    assigns = { 'var' => 'content' }
-    assert_template_result(
-      'content foo content foo ',
+    assert_template_result('content foo content foo ',
      '{{ var2 }}{% capture var2 %}{{ var }} foo {% endcapture %}{{ var2 }}{{ var2 }}',
-      assigns,
-    )
+      assigns)
  end

  def test_capture_detects_bad_syntax
    assert_raises(SyntaxError) do
-      assert_template_result(
-        'content foo content foo ',
+      assert_template_result('content foo content foo ',
        '{{ var2 }}{% capture %}{{ var }} foo {% endcapture %}{{ var2 }}{{ var2 }}',
-        { 'var' => 'content' },
-      )
+        'var' => 'content')
    end
  end

  def test_case
    assigns = { 'condition' => 2 }
-    assert_template_result(
-      ' its 2 ',
+    assert_template_result(' its 2 ',
      '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
-      assigns,
-    )
+      assigns)

    assigns = { 'condition' => 1 }
-    assert_template_result(
-      ' its 1 ',
+    assert_template_result(' its 1 ',
      '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
-      assigns,
-    )
+      assigns)

    assigns = { 'condition' => 3 }
-    assert_template_result(
-      '',
+    assert_template_result('',
      '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
-      assigns,
-    )
+      assigns)

    assigns = { 'condition' => "string here" }
-    assert_template_result(
-      ' hit ',
+    assert_template_result(' hit ',
      '{% case condition %}{% when "string here" %} hit {% endcase %}',
-      assigns,
-    )
+      assigns)

    assigns = { 'condition' => "bad string here" }
-    assert_template_result(
-      '',
+    assert_template_result('',
      '{% case condition %}{% when "string here" %} hit {% endcase %}',\
-      assigns,
-    )
+      assigns)
  end

  def test_case_with_else
    assigns = { 'condition' => 5 }
-    assert_template_result(
-      ' hit ',
+    assert_template_result(' hit ',
      '{% case condition %}{% when 5 %} hit {% else %} else {% endcase %}',
-      assigns,
-    )
+      assigns)

    assigns = { 'condition' => 6 }
-    assert_template_result(
-      ' else ',
+    assert_template_result(' else ',
      '{% case condition %}{% when 5 %} hit {% else %} else {% endcase %}',
-      assigns,
-    )
+      assigns)

    assigns = { 'condition' => 6 }
-    assert_template_result(
-      ' else ',
+    assert_template_result(' else ',
      '{% case condition %} {% when 5 %} hit {% else %} else {% endcase %}',
-      assigns,
-    )
+      assigns)
  end

  def test_case_on_size
-    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', { 'a' => [] })
-    assert_template_result('1', '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', { 'a' => [1] })
-    assert_template_result('2', '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', { 'a' => [1, 1] })
-    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', { 'a' => [1, 1, 1] })
-    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', { 'a' => [1, 1, 1, 1] })
-    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', { 'a' => [1, 1, 1, 1, 1] })
+    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [])
+    assert_template_result('1', '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [1])
+    assert_template_result('2', '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [1, 1])
+    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [1, 1, 1])
+    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [1, 1, 1, 1])
+    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [1, 1, 1, 1, 1])
  end

  def test_case_on_size_with_else
-    assert_template_result(
-      'else',
+    assert_template_result('else',
      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      { 'a' => [] },
-    )
+      'a' => [])

-    assert_template_result(
-      '1',
+    assert_template_result('1',
      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      { 'a' => [1] },
-    )
+      'a' => [1])

-    assert_template_result(
-      '2',
+    assert_template_result('2',
      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      { 'a' => [1, 1] },
-    )
+      'a' => [1, 1])

-    assert_template_result(
-      'else',
+    assert_template_result('else',
      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      { 'a' => [1, 1, 1] },
-    )
+      'a' => [1, 1, 1])

-    assert_template_result(
-      'else',
+    assert_template_result('else',
      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      { 'a' => [1, 1, 1, 1] },
-    )
+      'a' => [1, 1, 1, 1])

-    assert_template_result(
-      'else',
+    assert_template_result('else',
      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      { 'a' => [1, 1, 1, 1, 1] },
-    )
+      'a' => [1, 1, 1, 1, 1])
  end

  def test_case_on_length_with_else
-    assert_template_result(
-      'else',
+    assert_template_result('else',
      '{% case a.empty? %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
-      {},
-    )
+      {})

-    assert_template_result(
-      'false',
+    assert_template_result('false',
      '{% case false %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
-      {},
-    )
+      {})

-    assert_template_result(
-      'true',
+    assert_template_result('true',
      '{% case true %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
-      {},
-    )
+      {})

-    assert_template_result(
-      'else',
+    assert_template_result('else',
      '{% case NULL %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
-      {},
-    )
+      {})
  end

  def test_assign_from_case
    # Example from the shopify forums
-    code = "{% case collection.handle %}{% when 'menswear-jackets' %}{% assign ptitle = 'menswear' %}{% when 'menswear-t-shirts' %}{% assign ptitle = 'menswear' %}{% else %}{% assign ptitle = 'womenswear' %}{% endcase %}{{ ptitle }}"
-    assert_template_result("menswear",   code, { "collection" => { 'handle' => 'menswear-jackets' } })
-    assert_template_result("menswear",   code, { "collection" => { 'handle' => 'menswear-t-shirts' } })
-    assert_template_result("womenswear", code, { "collection" => { 'handle' => 'x' } })
-    assert_template_result("womenswear", code, { "collection" => { 'handle' => 'y' } })
-    assert_template_result("womenswear", code, { "collection" => { 'handle' => 'z' } })
+    code     = "{% case collection.handle %}{% when 'menswear-jackets' %}{% assign ptitle = 'menswear' %}{% when 'menswear-t-shirts' %}{% assign ptitle = 'menswear' %}{% else %}{% assign ptitle = 'womenswear' %}{% endcase %}{{ ptitle }}"
+    template = Liquid::Template.parse(code)
+    assert_equal("menswear",   template.render!("collection" => { 'handle' => 'menswear-jackets' }))
+    assert_equal("menswear",   template.render!("collection" => { 'handle' => 'menswear-t-shirts' }))
+    assert_equal("womenswear", template.render!("collection" => { 'handle' => 'x' }))
+    assert_equal("womenswear", template.render!("collection" => { 'handle' => 'y' }))
+    assert_equal("womenswear", template.render!("collection" => { 'handle' => 'z' }))
  end

  def test_case_when_or
    code = '{% case condition %}{% when 1 or 2 or 3 %} its 1 or 2 or 3 {% when 4 %} its 4 {% endcase %}'
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 1 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 2 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 3 })
-    assert_template_result(' its 4 ', code, { 'condition' => 4 })
-    assert_template_result('', code, { 'condition' => 5 })
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => 1)
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => 2)
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => 3)
+    assert_template_result(' its 4 ', code, 'condition' => 4)
+    assert_template_result('', code, 'condition' => 5)

    code = '{% case condition %}{% when 1 or "string" or null %} its 1 or 2 or 3 {% when 4 %} its 4 {% endcase %}'
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 1 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 'string' })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => nil })
-    assert_template_result('', code, { 'condition' => 'something else' })
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => 1)
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => 'string')
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => nil)
+    assert_template_result('', code, 'condition' => 'something else')
  end

  def test_case_when_comma
    code = '{% case condition %}{% when 1, 2, 3 %} its 1 or 2 or 3 {% when 4 %} its 4 {% endcase %}'
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 1 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 2 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 3 })
-    assert_template_result(' its 4 ', code, { 'condition' => 4 })
-    assert_template_result('', code, { 'condition' => 5 })
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => 1)
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => 2)
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => 3)
+    assert_template_result(' its 4 ', code, 'condition' => 4)
+    assert_template_result('', code, 'condition' => 5)

    code = '{% case condition %}{% when 1, "string", null %} its 1 or 2 or 3 {% when 4 %} its 4 {% endcase %}'
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 1 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 'string' })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => nil })
-    assert_template_result('', code, { 'condition' => 'something else' })
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => 1)
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => 'string')
+    assert_template_result(' its 1 or 2 or 3 ', code, 'condition' => nil)
+    assert_template_result('', code, 'condition' => 'something else')
  end

  def test_case_when_comma_and_blank_body
    code = '{% case condition %}{% when 1, 2 %} {% assign r = "result" %} {% endcase %}{{ r }}'
-    assert_template_result('result', code, { 'condition' => 2 })
+    assert_template_result('result', code, 'condition' => 2)
  end

  def test_assign
@@ -297,33 +252,24 @@ class StandardTagTest < Minitest::Test

    assert_template_result('one two one', '{%cycle "one", "two"%} {%cycle "one", "two"%} {%cycle "one", "two"%}')

-    assert_template_result(
-      'text-align: left text-align: right',
-      '{%cycle "text-align: left", "text-align: right" %} {%cycle "text-align: left", "text-align: right"%}',
-    )
+    assert_template_result('text-align: left text-align: right',
+      '{%cycle "text-align: left", "text-align: right" %} {%cycle "text-align: left", "text-align: right"%}')
  end

  def test_multiple_cycles
-    assert_template_result(
-      '1 2 1 1 2 3 1',
-      '{%cycle 1,2%} {%cycle 1,2%} {%cycle 1,2%} {%cycle 1,2,3%} {%cycle 1,2,3%} {%cycle 1,2,3%} {%cycle 1,2,3%}',
-    )
+    assert_template_result('1 2 1 1 2 3 1',
+      '{%cycle 1,2%} {%cycle 1,2%} {%cycle 1,2%} {%cycle 1,2,3%} {%cycle 1,2,3%} {%cycle 1,2,3%} {%cycle 1,2,3%}')
  end

  def test_multiple_named_cycles
-    assert_template_result(
-      'one one two two one one',
-      '{%cycle 1: "one", "two" %} {%cycle 2: "one", "two" %} {%cycle 1: "one", "two" %} {%cycle 2: "one", "two" %} {%cycle 1: "one", "two" %} {%cycle 2: "one", "two" %}',
-    )
+    assert_template_result('one one two two one one',
+      '{%cycle 1: "one", "two" %} {%cycle 2: "one", "two" %} {%cycle 1: "one", "two" %} {%cycle 2: "one", "two" %} {%cycle 1: "one", "two" %} {%cycle 2: "one", "two" %}')
  end

  def test_multiple_named_cycles_with_names_from_context
    assigns = { "var1" => 1, "var2" => 2 }
-    assert_template_result(
-      'one one two two one one',
-      '{%cycle var1: "one", "two" %} {%cycle var2: "one", "two" %} {%cycle var1: "one", "two" %} {%cycle var2: "one", "two" %} {%cycle var1: "one", "two" %} {%cycle var2: "one", "two" %}',
-      assigns,
-    )
+    assert_template_result('one one two two one one',
+      '{%cycle var1: "one", "two" %} {%cycle var2: "one", "two" %} {%cycle var1: "one", "two" %} {%cycle var2: "one", "two" %} {%cycle var1: "one", "two" %} {%cycle var2: "one", "two" %}', assigns)
  end

  def test_size_of_array
@@ -60,22 +60,22 @@ class StatementsTest < Minitest::Test

  def test_var_strings_equal
    text = ' {% if var == "hello there!" %} true {% else %} false {% endif %} '
-    assert_template_result('  true  ', text, { 'var' => 'hello there!' })
+    assert_template_result('  true  ', text, 'var' => 'hello there!')
  end

  def test_var_strings_are_not_equal
    text = ' {% if "hello there!" == var %} true {% else %} false {% endif %} '
-    assert_template_result('  true  ', text, { 'var' => 'hello there!' })
+    assert_template_result('  true  ', text, 'var' => 'hello there!')
  end

  def test_var_and_long_string_are_equal
    text = " {% if var == 'hello there!' %} true {% else %} false {% endif %} "
-    assert_template_result('  true  ', text, { 'var' => 'hello there!' })
+    assert_template_result('  true  ', text, 'var' => 'hello there!')
  end

  def test_var_and_long_string_are_equal_backwards
    text = " {% if 'hello there!' == var %} true {% else %} false {% endif %} "
-    assert_template_result('  true  ', text, { 'var' => 'hello there!' })
+    assert_template_result('  true  ', text, 'var' => 'hello there!')
  end

  # def test_is_nil
@@ -87,27 +87,27 @@ class StatementsTest < Minitest::Test

  def test_is_collection_empty
    text = ' {% if array == empty %} true {% else %} false {% endif %} '
-    assert_template_result('  true  ', text, { 'array' => [] })
+    assert_template_result('  true  ', text, 'array' => [])
  end

  def test_is_not_collection_empty
    text = ' {% if array == empty %} true {% else %} false {% endif %} '
-    assert_template_result('  false  ', text, { 'array' => [1, 2, 3] })
+    assert_template_result('  false  ', text, 'array' => [1, 2, 3])
  end

  def test_nil
    text = ' {% if var == nil %} true {% else %} false {% endif %} '
-    assert_template_result('  true  ', text, { 'var' => nil })
+    assert_template_result('  true  ', text, 'var' => nil)

    text = ' {% if var == null %} true {% else %} false {% endif %} '
-    assert_template_result('  true  ', text, { 'var' => nil })
+    assert_template_result('  true  ', text, 'var' => nil)
  end

  def test_not_nil
    text = ' {% if var != nil %} true {% else %} false {% endif %} '
-    assert_template_result('  true  ', text, { 'var' => 1 })
+    assert_template_result('  true  ', text, 'var' => 1)

    text = ' {% if var != null %} true {% else %} false {% endif %} '
-    assert_template_result('  true  ', text, { 'var' => 1 })
+    assert_template_result('  true  ', text, 'var' => 1)
  end
 end # StatementsTest
@@ -18,193 +18,49 @@ class TableRowTest < Minitest::Test
  end

  def test_table_row
-    assert_template_result(
-      "<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
+    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
      '{% tablerow n in numbers cols:3%} {{n}} {% endtablerow %}',
-      { 'numbers' => [1, 2, 3, 4, 5, 6] },
-    )
+      'numbers' => [1, 2, 3, 4, 5, 6])

-    assert_template_result(
-      "<tr class=\"row1\">\n</tr>\n",
+    assert_template_result("<tr class=\"row1\">\n</tr>\n",
      '{% tablerow n in numbers cols:3%} {{n}} {% endtablerow %}',
-      { 'numbers' => [] },
-    )
+      'numbers' => [])
  end

  def test_table_row_with_different_cols
-    assert_template_result(
-      "<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td><td class=\"col4\"> 4 </td><td class=\"col5\"> 5 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 6 </td></tr>\n",
+    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td><td class=\"col4\"> 4 </td><td class=\"col5\"> 5 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 6 </td></tr>\n",
      '{% tablerow n in numbers cols:5%} {{n}} {% endtablerow %}',
-      { 'numbers' => [1, 2, 3, 4, 5, 6] },
-    )
+      'numbers' => [1, 2, 3, 4, 5, 6])
  end

  def test_table_col_counter
-    assert_template_result(
-      "<tr class=\"row1\">\n<td class=\"col1\">1</td><td class=\"col2\">2</td></tr>\n<tr class=\"row2\"><td class=\"col1\">1</td><td class=\"col2\">2</td></tr>\n<tr class=\"row3\"><td class=\"col1\">1</td><td class=\"col2\">2</td></tr>\n",
+    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\">1</td><td class=\"col2\">2</td></tr>\n<tr class=\"row2\"><td class=\"col1\">1</td><td class=\"col2\">2</td></tr>\n<tr class=\"row3\"><td class=\"col1\">1</td><td class=\"col2\">2</td></tr>\n",
      '{% tablerow n in numbers cols:2%}{{tablerowloop.col}}{% endtablerow %}',
-      { 'numbers' => [1, 2, 3, 4, 5, 6] },
-    )
+      'numbers' => [1, 2, 3, 4, 5, 6])
  end

  def test_quoted_fragment
-    assert_template_result(
-      "<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
+    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
      "{% tablerow n in collections.frontpage cols:3%} {{n}} {% endtablerow %}",
-      { 'collections' => { 'frontpage' => [1, 2, 3, 4, 5, 6] } },
-    )
-    assert_template_result(
-      "<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
+      'collections' => { 'frontpage' => [1, 2, 3, 4, 5, 6] })
+    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
      "{% tablerow n in collections['frontpage'] cols:3%} {{n}} {% endtablerow %}",
-      { 'collections' => { 'frontpage' => [1, 2, 3, 4, 5, 6] } },
-    )
+      'collections' => { 'frontpage' => [1, 2, 3, 4, 5, 6] })
  end

  def test_enumerable_drop
-    assert_template_result(
-      "<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
+    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
      '{% tablerow n in numbers cols:3%} {{n}} {% endtablerow %}',
-      { 'numbers' => ArrayDrop.new([1, 2, 3, 4, 5, 6]) },
-    )
+      'numbers' => ArrayDrop.new([1, 2, 3, 4, 5, 6]))
  end

  def test_offset_and_limit
-    assert_template_result(
-      "<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
+    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
      '{% tablerow n in numbers cols:3 offset:1 limit:6%} {{n}} {% endtablerow %}',
-      { 'numbers' => [0, 1, 2, 3, 4, 5, 6, 7] },
-    )
+      'numbers' => [0, 1, 2, 3, 4, 5, 6, 7])
  end

  def test_blank_string_not_iterable
-    assert_template_result(
-      "<tr class=\"row1\">\n</tr>\n",
-      "{% tablerow char in characters cols:3 %}I WILL NOT BE OUTPUT{% endtablerow %}",
-      { 'characters' => '' },
-    )
-  end
-
-  def test_cols_nil_constant_same_as_evaluated_nil_expression
-    expect = "<tr class=\"row1\">\n" \
-      "<td class=\"col1\">false</td>" \
-      "<td class=\"col2\">false</td>" \
-      "</tr>\n"
-
-    assert_template_result(
-      expect,
-      "{% tablerow i in (1..2) cols:nil %}{{ tablerowloop.col_last }}{% endtablerow %}",
-    )
-
-    assert_template_result(
-      expect,
-      "{% tablerow i in (1..2) cols:var %}{{ tablerowloop.col_last }}{% endtablerow %}",
-      { "var" => nil },
-    )
-  end
-
-  def test_nil_limit_is_treated_as_zero
-    expect = "<tr class=\"row1\">\n" \
-      "</tr>\n"
-
-    assert_template_result(
-      expect,
-      "{% tablerow i in (1..2) limit:nil %}{{ i }}{% endtablerow %}",
-    )
-
-    assert_template_result(
-      expect,
-      "{% tablerow i in (1..2) limit:var %}{{ i }}{% endtablerow %}",
-      { "var" => nil },
-    )
-  end
-
-  def test_nil_offset_is_treated_as_zero
-    expect = "<tr class=\"row1\">\n" \
-      "<td class=\"col1\">1:false</td>" \
-      "<td class=\"col2\">2:true</td>" \
-      "</tr>\n"
-
-    assert_template_result(
-      expect,
-      "{% tablerow i in (1..2) offset:nil %}{{ i }}:{{ tablerowloop.col_last }}{% endtablerow %}",
-    )
-
-    assert_template_result(
-      expect,
-      "{% tablerow i in (1..2) offset:var %}{{ i }}:{{ tablerowloop.col_last }}{% endtablerow %}",
-      { "var" => nil },
-    )
-  end
-
-  def test_tablerow_loop_drop_attributes
-    template = <<~LIQUID.chomp
-      {% tablerow i in (1...2) %}
-      col: {{ tablerowloop.col }}
-      col0: {{ tablerowloop.col0 }}
-      col_first: {{ tablerowloop.col_first }}
-      col_last: {{ tablerowloop.col_last }}
-      first: {{ tablerowloop.first }}
-      index: {{ tablerowloop.index }}
-      index0: {{ tablerowloop.index0 }}
-      last: {{ tablerowloop.last }}
-      length: {{ tablerowloop.length }}
-      rindex: {{ tablerowloop.rindex }}
-      rindex0: {{ tablerowloop.rindex0 }}
-      row: {{ tablerowloop.row }}
-      {% endtablerow %}
-    LIQUID
-
-    expected_output = <<~OUTPUT
-      <tr class="row1">
-      <td class="col1">
-      col: 1
-      col0: 0
-      col_first: true
-      col_last: false
-      first: true
-      index: 1
-      index0: 0
-      last: false
-      length: 2
-      rindex: 2
-      rindex0: 1
-      row: 1
-      </td><td class="col2">
-      col: 2
-      col0: 1
-      col_first: false
-      col_last: true
-      first: false
-      index: 2
-      index0: 1
-      last: true
-      length: 2
-      rindex: 1
-      rindex0: 0
-      row: 1
-      </td></tr>
-    OUTPUT
-
-    assert_template_result(expected_output, template)
-  end
-
-  def test_table_row_renders_correct_error_message_for_invalid_parameters
-    assert_template_result(
-      "Liquid error (line 1): invalid integer",
-      '{% tablerow n in (1...10) limit:true %} {{n}} {% endtablerow %}',
-      render_errors: true,
-    )
-
-    assert_template_result(
-      "Liquid error (line 1): invalid integer",
-      '{% tablerow n in (1...10) offset:true %} {{n}} {% endtablerow %}',
-      render_errors: true,
-    )
-
-    assert_template_result(
-      "Liquid error (line 1): invalid integer",
-      '{% tablerow n in (1...10) cols:true %} {{n}} {% endtablerow %}',
-      render_errors: true,
-    )
+    assert_template_result("<tr class=\"row1\">\n</tr>\n", "{% tablerow char in characters cols:3 %}I WILL NOT BE OUTPUT{% endtablerow %}", 'characters' => '')
  end
 end
@@ -7,10 +7,8 @@ class UnlessElseTagTest < Minitest::Test

  def test_unless
    assert_template_result('  ', ' {% unless true %} this text should not go into the output {% endunless %} ')
-    assert_template_result(
-      '  this text should go into the output  ',
-      ' {% unless false %} this text should go into the output {% endunless %} ',
-    )
+    assert_template_result('  this text should go into the output  ',
+      ' {% unless false %} this text should go into the output {% endunless %} ')
    assert_template_result('  you rock ?', '{% unless true %} you suck {% endunless %} {% unless false %} you rock {% endunless %}?')
  end

@@ -21,10 +19,10 @@ class UnlessElseTagTest < Minitest::Test
  end

  def test_unless_in_loop
-    assert_template_result('23', '{% for i in choices %}{% unless i %}{{ forloop.index }}{% endunless %}{% endfor %}', { 'choices' => [1, nil, false] })
+    assert_template_result('23', '{% for i in choices %}{% unless i %}{{ forloop.index }}{% endunless %}{% endfor %}', 'choices' => [1, nil, false])
  end

  def test_unless_else_in_loop
-    assert_template_result(' TRUE  2  3 ', '{% for i in choices %}{% unless i %} {{ forloop.index }} {% else %} TRUE {% endunless %}{% endfor %}', { 'choices' => [1, nil, false] })
+    assert_template_result(' TRUE  2  3 ', '{% for i in choices %}{% unless i %} {{ forloop.index }} {% else %} TRUE {% endunless %}{% endfor %}', 'choices' => [1, nil, false])
  end
 end # UnlessElseTest
@@ -93,12 +93,10 @@ class TemplateTest < Minitest::Test

  def test_lambda_is_called_once_from_custom_assigns_over_multiple_parses_and_renders
    t = Template.new
-    assigns = {
-      'number' => -> {
-        @global ||= 0
-        @global += 1
-      },
-    }
+    assigns = { 'number' => -> {
+                              @global ||= 0
+                              @global  += 1
+                            } }
    assert_equal('1', t.parse("{{number}}").render!(assigns))
    assert_equal('1', t.parse("{{number}}").render!(assigns))
    assert_equal('1', t.render!(assigns))
@@ -317,11 +315,13 @@ class TemplateTest < Minitest::Test
  end

  def test_using_range_literal_works_as_expected
-    source = "{% assign foo = (x..y) %}{{ foo }}"
-    assert_template_result("1..5", source, { "x" => 1, "y" => 5 })
+    t = Template.parse("{% assign foo = (x..y) %}{{ foo }}")
+    result = t.render('x' => 1, 'y' => 5)
+    assert_equal('1..5', result)

-    source = "{% assign nums = (x..y) %}{% for num in nums %}{{ num }}{% endfor %}"
-    assert_template_result("12345", source, { "x" => 1, "y" => 5 })
+    t = Template.parse("{% assign nums = (x..y) %}{% for num in nums %}{{ num }}{% endfor %}")
+    result = t.render('x' => 1, 'y' => 5)
+    assert_equal('12345', result)
  end

  def test_source_string_subclass
@@ -530,9 +530,14 @@ class TrimModeTest < Minitest::Test
  end

  def test_pre_trim_blank_preceding_text
-    assert_template_result("", "\n{%- raw %}{% endraw %}")
-    assert_template_result("", "\n{%- if true %}{% endif %}")
-    assert_template_result("BC", "{{ 'B' }} \n{%- if true %}C{% endif %}")
+    template = Liquid::Template.parse("\n{%- raw %}{% endraw %}")
+    assert_equal("", template.render)
+
+    template = Liquid::Template.parse("\n{%- if true %}{% endif %}")
+    assert_equal("", template.render)
+
+    template = Liquid::Template.parse("{{ 'B' }} \n{%- if true %}C{% endif %}")
+    assert_equal("BC", template.render)
  end

  def test_bug_compatible_pre_trim
@@ -1,87 +1,86 @@
 # frozen_string_literal: true

 require 'test_helper'
-require 'timeout'

 class VariableTest < Minitest::Test
  include Liquid

  def test_simple_variable
-    assert_template_result('worked', "{{test}}", { 'test' => 'worked' })
-    assert_template_result('worked wonderfully', "{{test}}", { 'test' => 'worked wonderfully' })
+    template = Template.parse(%({{test}}))
+    assert_equal('worked', template.render!('test' => 'worked'))
+    assert_equal('worked wonderfully', template.render!('test' => 'worked wonderfully'))
  end

  def test_variable_render_calls_to_liquid
-    assert_template_result('foobar', '{{ foo }}', { 'foo' => ThingWithToLiquid.new })
+    assert_template_result('foobar', '{{ foo }}', 'foo' => ThingWithToLiquid.new)
  end

  def test_variable_lookup_calls_to_liquid_value
-    assert_template_result('1', '{{ foo }}', { 'foo' => IntegerDrop.new('1') })
-    assert_template_result('2', '{{ list[foo] }}', { 'foo' => IntegerDrop.new('1'), 'list' => [1, 2, 3] })
-    assert_template_result('one', '{{ list[foo] }}', { 'foo' => IntegerDrop.new('1'), 'list' => { 1 => 'one' } })
-    assert_template_result('Yay', '{{ foo }}', { 'foo' => BooleanDrop.new(true) })
-    assert_template_result('YAY', '{{ foo | upcase }}', { 'foo' => BooleanDrop.new(true) })
+    assert_template_result('1', '{{ foo }}', 'foo' => IntegerDrop.new('1'))
+    assert_template_result('2', '{{ list[foo] }}', 'foo' => IntegerDrop.new('1'), 'list' => [1, 2, 3])
+    assert_template_result('one', '{{ list[foo] }}', 'foo' => IntegerDrop.new('1'), 'list' => { 1 => 'one' })
+    assert_template_result('Yay', '{{ foo }}', 'foo' => BooleanDrop.new(true))
+    assert_template_result('YAY', '{{ foo | upcase }}', 'foo' => BooleanDrop.new(true))
  end

  def test_if_tag_calls_to_liquid_value
-    assert_template_result('one', '{% if foo == 1 %}one{% endif %}', { 'foo' => IntegerDrop.new('1') })
-    assert_template_result('one', '{% if foo == eqv %}one{% endif %}', { 'foo' => IntegerDrop.new(1), 'eqv' => IntegerDrop.new(1) })
-    assert_template_result('one', '{% if 0 < foo %}one{% endif %}', { 'foo' => IntegerDrop.new('1') })
-    assert_template_result('one', '{% if foo > 0 %}one{% endif %}', { 'foo' => IntegerDrop.new('1') })
-    assert_template_result('one', '{% if b > a %}one{% endif %}', { 'b' => IntegerDrop.new(1), 'a' => IntegerDrop.new(0) })
-    assert_template_result('true', '{% if foo == true %}true{% endif %}', { 'foo' => BooleanDrop.new(true) })
-    assert_template_result('true', '{% if foo %}true{% endif %}', { 'foo' => BooleanDrop.new(true) })
+    assert_template_result('one', '{% if foo == 1 %}one{% endif %}', 'foo' => IntegerDrop.new('1'))
+    assert_template_result('one', '{% if 0 < foo %}one{% endif %}', 'foo' => IntegerDrop.new('1'))
+    assert_template_result('one', '{% if foo > 0 %}one{% endif %}', 'foo' => IntegerDrop.new('1'))
+    assert_template_result('true', '{% if foo == true %}true{% endif %}', 'foo' => BooleanDrop.new(true))
+    assert_template_result('true', '{% if foo %}true{% endif %}', 'foo' => BooleanDrop.new(true))

-    assert_template_result('', '{% if foo %}true{% endif %}', { 'foo' => BooleanDrop.new(false) })
-    assert_template_result('', '{% if foo == true %}True{% endif %}', { 'foo' => BooleanDrop.new(false) })
-
-    assert_template_result('one', '{% if a contains x %}one{% endif %}', { 'a' => [1], 'x' => IntegerDrop.new(1) })
+    assert_template_result('', '{% if foo %}true{% endif %}', 'foo' => BooleanDrop.new(false))
+    assert_template_result('', '{% if foo == true %}True{% endif %}', 'foo' => BooleanDrop.new(false))
  end

  def test_unless_tag_calls_to_liquid_value
-    assert_template_result('', '{% unless foo %}true{% endunless %}', { 'foo' => BooleanDrop.new(true) })
-    assert_template_result('true', '{% unless foo %}true{% endunless %}', { 'foo' => BooleanDrop.new(false) })
+    assert_template_result('', '{% unless foo %}true{% endunless %}', 'foo' => BooleanDrop.new(true))
  end

  def test_case_tag_calls_to_liquid_value
-    assert_template_result('One', '{% case foo %}{% when 1 %}One{% endcase %}', { 'foo' => IntegerDrop.new('1') })
+    assert_template_result('One', '{% case foo %}{% when 1 %}One{% endcase %}', 'foo' => IntegerDrop.new('1'))
  end

  def test_simple_with_whitespaces
-    assert_template_result("  worked  ", "  {{ test }}  ", { "test" => "worked" })
-    assert_template_result("  worked wonderfully  ", "  {{ test }}  ", { "test" => "worked wonderfully" })
+    template = Template.parse(%(  {{ test }}  ))
+    assert_equal('  worked  ', template.render!('test' => 'worked'))
+    assert_equal('  worked wonderfully  ', template.render!('test' => 'worked wonderfully'))
  end

  def test_expression_with_whitespace_in_square_brackets
-    assert_template_result('result', "{{ a[ 'b' ] }}", { 'a' => { 'b' => 'result' } })
-    assert_template_result('result', "{{ a[ [ 'b' ] ] }}", { 'b' => 'c', 'a' => { 'c' => 'result' } })
+    assert_template_result('result', "{{ a[ 'b' ] }}", 'a' => { 'b' => 'result' })
+    assert_template_result('result', "{{ a[ [ 'b' ] ] }}", 'b' => 'c', 'a' => { 'c' => 'result' })
  end

  def test_ignore_unknown
-    assert_template_result("", "{{ test }}")
+    template = Template.parse(%({{ test }}))
+    assert_equal('', template.render!)
  end

  def test_using_blank_as_variable_name
-    assert_template_result("", "{% assign foo = blank %}{{ foo }}")
+    template = Template.parse("{% assign foo = blank %}{{ foo }}")
+    assert_equal('', template.render!)
  end

  def test_using_empty_as_variable_name
-    assert_template_result("", "{% assign foo = empty %}{{ foo }}")
+    template = Template.parse("{% assign foo = empty %}{{ foo }}")
+    assert_equal('', template.render!)
  end

  def test_hash_scoping
-    assert_template_result('worked', "{{ test.test }}", { 'test' => { 'test' => 'worked' } })
-    assert_template_result('worked', "{{ test . test }}", { 'test' => { 'test' => 'worked' } })
+    assert_template_result('worked', "{{ test.test }}", 'test' => { 'test' => 'worked' })
+    assert_template_result('worked', "{{ test . test }}", 'test' => { 'test' => 'worked' })
  end

  def test_false_renders_as_false
-    assert_template_result("false", "{{ foo }}", { 'foo' => false })
-    assert_template_result("false", "{{ false }}")
+    assert_equal('false', Template.parse("{{ foo }}").render!('foo' => false))
+    assert_equal('false', Template.parse("{{ false }}").render!)
  end

  def test_nil_renders_as_empty_string
-    assert_template_result("", "{{ nil }}")
-    assert_template_result("cat", "{{ nil | append: 'cat' }}")
+    assert_equal('', Template.parse("{{ nil }}").render!)
+    assert_equal('cat', Template.parse("{{ nil | append: 'cat' }}").render!)
  end

  def test_preset_assigns
@@ -122,86 +121,18 @@ class VariableTest < Minitest::Test
  end

  def test_multiline_variable
-    assert_template_result("worked", "{{\ntest\n}}", { "test" => "worked" })
+    assert_equal('worked', Template.parse("{{\ntest\n}}").render!('test' => 'worked'))
  end

  def test_render_symbol
-    assert_template_result('bar', '{{ foo }}', { 'foo' => :bar })
+    assert_template_result('bar', '{{ foo }}', 'foo' => :bar)
  end

  def test_dynamic_find_var
-    assert_template_result('bar', '{{ [key] }}', { 'key' => 'foo', 'foo' => 'bar' })
+    assert_template_result('bar', '{{ [key] }}', 'key' => 'foo', 'foo' => 'bar')
  end

  def test_raw_value_variable
-    assert_template_result('bar', '{{ [key] }}', { 'key' => 'foo', 'foo' => 'bar' })
-  end
-
-  def test_dynamic_find_var_with_drop
-    assert_template_result(
-      'bar',
-      '{{ [list[settings.zero]] }}',
-      {
-        'list' => ['foo'],
-        'settings' => SettingsDrop.new("zero" => 0),
-        'foo' => 'bar',
-      },
-    )
-
-    assert_template_result(
-      'foo',
-      '{{ [list[settings.zero]["foo"]] }}',
-      {
-        'list' => [{ 'foo' => 'bar' }],
-        'settings' => SettingsDrop.new("zero" => 0),
-        'bar' => 'foo',
-      },
-    )
-  end
-
-  def test_double_nested_variable_lookup
-    assert_template_result(
-      'bar',
-      '{{ list[list[settings.zero]]["foo"] }}',
-      {
-        'list' => [1, { 'foo' => 'bar' }],
-        'settings' => SettingsDrop.new("zero" => 0),
-        'bar' => 'foo',
-      },
-    )
-  end
-
-  def test_variable_lookup_should_not_hang_with_invalid_syntax
-    Timeout.timeout(1) do
-      assert_template_result(
-        'bar',
-        "{{['foo'}}",
-        {
-          'foo' => 'bar',
-        },
-        error_mode: :lax,
-      )
-    end
-
-    very_long_key = "1234567890" * 100
-
-    template_list = [
-      "{{['#{very_long_key}']}}", # valid
-      "{{['#{very_long_key}'}}", # missing closing bracket
-      "{{[['#{very_long_key}']}}", # extra open bracket
-    ]
-
-    template_list.each do |template|
-      Timeout.timeout(1) do
-        assert_template_result(
-          'bar',
-          template,
-          {
-            very_long_key => 'bar',
-          },
-          error_mode: :lax,
-        )
-      end
-    end
+    assert_template_result('bar', '{{ [key] }}', 'key' => 'foo', 'foo' => 'bar')
  end
 end
@@ -37,30 +37,23 @@ module Minitest
  module Assertions
    include Liquid

-    def assert_template_result(
-      expected, template, assigns = {},
-      message: nil, partials: nil, error_mode: nil, render_errors: false,
-      template_factory: nil
-    )
-      template = Liquid::Template.parse(template, line_numbers: true, error_mode: error_mode&.to_sym)
-      file_system = StubFileSystem.new(partials || {})
-      registers = Liquid::Registers.new(file_system: file_system, template_factory: template_factory)
-      context = Liquid::Context.build(static_environments: assigns, rethrow_errors: !render_errors, registers: registers)
-      output = template.render(context)
-      assert_equal(expected, output, message)
+    def assert_template_result(expected, template, assigns = {}, message = nil)
+      assert_equal(expected, Template.parse(template, line_numbers: true).render!(assigns), message)
    end

-    def assert_match_syntax_error(match, template, error_mode: nil)
+    def assert_template_result_matches(expected, template, assigns = {}, message = nil)
+      return assert_template_result(expected, template, assigns, message) unless expected.is_a?(Regexp)
+
+      assert_match(expected, Template.parse(template, line_numbers: true).render!(assigns), message)
+    end
+
+    def assert_match_syntax_error(match, template, assigns = {})
      exception = assert_raises(Liquid::SyntaxError) do
-        Template.parse(template, line_numbers: true, error_mode: error_mode&.to_sym).render
+        Template.parse(template, line_numbers: true).render(assigns)
      end
      assert_match(match, exception.message)
    end

-    def assert_syntax_error(template, error_mode: nil)
-      assert_match_syntax_error("", template, error_mode: error_mode)
-    end
-
    def assert_usage_increment(name, times: 1)
      old_method = Liquid::Usage.method(:increment)
      calls = 0
@@ -79,21 +72,21 @@ module Minitest
    end

    def with_global_filter(*globals)
-      original_global_cache = Liquid::StrainerFactory::GlobalCache
-      Liquid::StrainerFactory.send(:remove_const, :GlobalCache)
-      Liquid::StrainerFactory.const_set(:GlobalCache, Class.new(Liquid::StrainerTemplate))
+      original_global_filters = Liquid::StrainerFactory.instance_variable_get(:@global_filters)
+      Liquid::StrainerFactory.instance_variable_set(:@global_filters, [])
+      globals.each do |global|
+        Liquid::StrainerFactory.add_global_filter(global)
+      end
+
+      Liquid::StrainerFactory.send(:strainer_class_cache).clear

      globals.each do |global|
        Liquid::Template.register_filter(global)
      end
+      yield
+    ensure
      Liquid::StrainerFactory.send(:strainer_class_cache).clear
-      begin
-        yield
-      ensure
-        Liquid::StrainerFactory.send(:remove_const, :GlobalCache)
-        Liquid::StrainerFactory.const_set(:GlobalCache, original_global_cache)
-        Liquid::StrainerFactory.send(:strainer_class_cache).clear
-      end
+      Liquid::StrainerFactory.instance_variable_set(:@global_filters, original_global_filters)
    end

    def with_error_mode(mode)
@@ -126,23 +119,16 @@ class ThingWithToLiquid
  end
 end

-class SettingsDrop < Liquid::Drop
-  def initialize(settings)
-    super()
-    @settings = settings
-  end
-
-  def liquid_method_missing(key)
-    @settings[key]
-  end
-end
-
 class IntegerDrop < Liquid::Drop
  def initialize(value)
    super()
    @value = value.to_i
  end

+  def ==(other)
+    @value == other
+  end
+
  def to_s
    @value.to_s
  end
@@ -158,6 +144,10 @@ class BooleanDrop < Liquid::Drop
    @value = value
  end

+  def ==(other)
+    @value == other
+  end
+
  def to_liquid_value
    @value
  end
@@ -210,10 +200,8 @@ class StubTemplateFactory
    @count = 0
  end

-  def for(template_name)
+  def for(_template_name)
    @count += 1
-    template = Liquid::Template.new
-    template.name = "some/path/" + template_name
-    template
+    Liquid::Template.new
  end
 end
@@ -35,10 +35,8 @@ class BlockUnitTest < Minitest::Test
  def test_variable_many_embedded_fragments
    template = Liquid::Template.parse("  {{funk}} {{so}} {{brother}} ")
    assert_equal(7, template.root.nodelist.size)
-    assert_equal(
-      [String, Variable, String, Variable, String, Variable, String],
-      block_types(template.root.nodelist),
-    )
+    assert_equal([String, Variable, String, Variable, String, Variable, String],
+      block_types(template.root.nodelist))
  end

  def test_with_block
@@ -10,8 +10,8 @@ class ConditionUnitTest < Minitest::Test
  end

  def test_basic_condition
-    assert_equal(false, Condition.new(1, '==', 2).evaluate(Context.new))
-    assert_equal(true,  Condition.new(1, '==', 1).evaluate(Context.new))
+    assert_equal(false, Condition.new(1, '==', 2).evaluate)
+    assert_equal(true,  Condition.new(1, '==', 1).evaluate)
  end

  def test_default_operators_evalute_true
@@ -67,11 +67,11 @@ class ConditionUnitTest < Minitest::Test
  end

  def test_hash_compare_backwards_compatibility
-    assert_nil(Condition.new({}, '>', 2).evaluate(Context.new))
-    assert_nil(Condition.new(2, '>', {}).evaluate(Context.new))
-    assert_equal(false, Condition.new({}, '==', 2).evaluate(Context.new))
-    assert_equal(true, Condition.new({ 'a' => 1 }, '==', 'a' => 1).evaluate(Context.new))
-    assert_equal(true, Condition.new({ 'a' => 2 }, 'contains', 'a').evaluate(Context.new))
+    assert_nil(Condition.new({}, '>', 2).evaluate)
+    assert_nil(Condition.new(2, '>', {}).evaluate)
+    assert_equal(false, Condition.new({}, '==', 2).evaluate)
+    assert_equal(true, Condition.new({ 'a' => 1 }, '==', 'a' => 1).evaluate)
+    assert_equal(true, Condition.new({ 'a' => 2 }, 'contains', 'a').evaluate)
  end

  def test_contains_works_on_arrays
@@ -106,29 +106,30 @@ class ConditionUnitTest < Minitest::Test

  def test_or_condition
    condition = Condition.new(1, '==', 2)
-    assert_equal(false, condition.evaluate(Context.new))
+
+    assert_equal(false, condition.evaluate)

    condition.or(Condition.new(2, '==', 1))

-    assert_equal(false, condition.evaluate(Context.new))
+    assert_equal(false, condition.evaluate)

    condition.or(Condition.new(1, '==', 1))

-    assert_equal(true, condition.evaluate(Context.new))
+    assert_equal(true, condition.evaluate)
  end

  def test_and_condition
    condition = Condition.new(1, '==', 1)

-    assert_equal(true, condition.evaluate(Context.new))
+    assert_equal(true, condition.evaluate)

    condition.and(Condition.new(2, '==', 2))

-    assert_equal(true, condition.evaluate(Context.new))
+    assert_equal(true, condition.evaluate)

    condition.and(Condition.new(2, '==', 1))

-    assert_equal(false, condition.evaluate(Context.new))
+    assert_equal(false, condition.evaluate)
  end

  def test_should_allow_custom_proc_operator
@@ -147,34 +148,16 @@ class ConditionUnitTest < Minitest::Test
    assert_evaluates_true(VariableLookup.new("one"), '==', VariableLookup.new("another"))
  end

-  def test_default_context_is_deprecated
-    if Gem::Version.new(Liquid::VERSION) >= Gem::Version.new('6.0.0')
-      flunk("Condition#evaluate without a context argument is to be removed")
-    end
-
-    _out, err = capture_io do
-      assert_equal(true, Condition.new(1, '==', 1).evaluate)
-    end
-
-    expected = "DEPRECATION WARNING: Condition#evaluate without a context argument is deprecated" \
-      " and will be removed from Liquid 6.0.0."
-    assert_includes(err.lines.map(&:strip), expected)
-  end
-
  private

  def assert_evaluates_true(left, op, right)
-    assert(
-      Condition.new(left, op, right).evaluate(@context),
-      "Evaluated false: #{left} #{op} #{right}",
-    )
+    assert(Condition.new(left, op, right).evaluate(@context),
+      "Evaluated false: #{left} #{op} #{right}")
  end

  def assert_evaluates_false(left, op, right)
-    assert(
-      !Condition.new(left, op, right).evaluate(@context),
-      "Evaluated true: #{left} #{op} #{right}",
-    )
+    assert(!Condition.new(left, op, right).evaluate(@context),
+      "Evaluated true: #{left} #{op} #{right}")
  end

  def assert_evaluates_argument_error(left, op, right)
@@ -8,245 +8,231 @@ class ParseTreeVisitorTest < Minitest::Test
  def test_variable
    assert_equal(
      ["test"],
-      visit(%({{ test }})),
+      visit(%({{ test }}))
    )
  end

  def test_varible_with_filter
    assert_equal(
      ["test", "infilter"],
-      visit(%({{ test | split: infilter }})),
+      visit(%({{ test | split: infilter }}))
    )
  end

  def test_dynamic_variable
    assert_equal(
      ["test", "inlookup"],
-      visit(%({{ test[inlookup] }})),
+      visit(%({{ test[inlookup] }}))
    )
  end

  def test_echo
    assert_equal(
      ["test"],
-      visit(%({% echo test %})),
+      visit(%({% echo test %}))
    )
  end

  def test_if_condition
    assert_equal(
      ["test"],
-      visit(%({% if test %}{% endif %})),
+      visit(%({% if test %}{% endif %}))
    )
  end

  def test_complex_if_condition
    assert_equal(
      ["test"],
-      visit(%({% if 1 == 1 and 2 == test %}{% endif %})),
+      visit(%({% if 1 == 1 and 2 == test %}{% endif %}))
    )
  end

  def test_if_body
    assert_equal(
      ["test"],
-      visit(%({% if 1 == 1 %}{{ test }}{% endif %})),
+      visit(%({% if 1 == 1 %}{{ test }}{% endif %}))
    )
  end

  def test_unless_condition
    assert_equal(
      ["test"],
-      visit(%({% unless test %}{% endunless %})),
+      visit(%({% unless test %}{% endunless %}))
    )
  end

  def test_complex_unless_condition
    assert_equal(
      ["test"],
-      visit(%({% unless 1 == 1 and 2 == test %}{% endunless %})),
+      visit(%({% unless 1 == 1 and 2 == test %}{% endunless %}))
    )
  end

  def test_unless_body
    assert_equal(
      ["test"],
-      visit(%({% unless 1 == 1 %}{{ test }}{% endunless %})),
+      visit(%({% unless 1 == 1 %}{{ test }}{% endunless %}))
    )
  end

  def test_elsif_condition
    assert_equal(
      ["test"],
-      visit(%({% if 1 == 1 %}{% elsif test %}{% endif %})),
+      visit(%({% if 1 == 1 %}{% elsif test %}{% endif %}))
    )
  end

  def test_complex_elsif_condition
    assert_equal(
      ["test"],
-      visit(%({% if 1 == 1 %}{% elsif 1 == 1 and 2 == test %}{% endif %})),
+      visit(%({% if 1 == 1 %}{% elsif 1 == 1 and 2 == test %}{% endif %}))
    )
  end

  def test_elsif_body
    assert_equal(
      ["test"],
-      visit(%({% if 1 == 1 %}{% elsif 2 == 2 %}{{ test }}{% endif %})),
+      visit(%({% if 1 == 1 %}{% elsif 2 == 2 %}{{ test }}{% endif %}))
    )
  end

  def test_else_body
    assert_equal(
      ["test"],
-      visit(%({% if 1 == 1 %}{% else %}{{ test }}{% endif %})),
+      visit(%({% if 1 == 1 %}{% else %}{{ test }}{% endif %}))
    )
  end

  def test_case_left
    assert_equal(
      ["test"],
-      visit(%({% case test %}{% endcase %})),
+      visit(%({% case test %}{% endcase %}))
    )
  end

  def test_case_condition
    assert_equal(
      ["test"],
-      visit(%({% case 1 %}{% when test %}{% endcase %})),
+      visit(%({% case 1 %}{% when test %}{% endcase %}))
    )
  end

  def test_case_when_body
    assert_equal(
      ["test"],
-      visit(%({% case 1 %}{% when 2 %}{{ test }}{% endcase %})),
+      visit(%({% case 1 %}{% when 2 %}{{ test }}{% endcase %}))
    )
  end

  def test_case_else_body
    assert_equal(
      ["test"],
-      visit(%({% case 1 %}{% else %}{{ test }}{% endcase %})),
+      visit(%({% case 1 %}{% else %}{{ test }}{% endcase %}))
    )
  end

  def test_for_in
    assert_equal(
      ["test"],
-      visit(%({% for x in test %}{% endfor %})),
+      visit(%({% for x in test %}{% endfor %}))
    )
  end

  def test_for_limit
    assert_equal(
      ["test"],
-      visit(%({% for x in (1..5) limit: test %}{% endfor %})),
+      visit(%({% for x in (1..5) limit: test %}{% endfor %}))
    )
  end

  def test_for_offset
    assert_equal(
      ["test"],
-      visit(%({% for x in (1..5) offset: test %}{% endfor %})),
+      visit(%({% for x in (1..5) offset: test %}{% endfor %}))
    )
  end

  def test_for_body
    assert_equal(
      ["test"],
-      visit(%({% for x in (1..5) %}{{ test }}{% endfor %})),
+      visit(%({% for x in (1..5) %}{{ test }}{% endfor %}))
    )
  end

  def test_for_range
    assert_equal(
      ["test"],
-      visit(%({% for x in (1..test) %}{% endfor %})),
+      visit(%({% for x in (1..test) %}{% endfor %}))
    )
  end

  def test_tablerow_in
    assert_equal(
      ["test"],
-      visit(%({% tablerow x in test %}{% endtablerow %})),
+      visit(%({% tablerow x in test %}{% endtablerow %}))
    )
  end

  def test_tablerow_limit
    assert_equal(
      ["test"],
-      visit(%({% tablerow x in (1..5) limit: test %}{% endtablerow %})),
+      visit(%({% tablerow x in (1..5) limit: test %}{% endtablerow %}))
    )
  end

  def test_tablerow_offset
    assert_equal(
      ["test"],
-      visit(%({% tablerow x in (1..5) offset: test %}{% endtablerow %})),
+      visit(%({% tablerow x in (1..5) offset: test %}{% endtablerow %}))
    )
  end

  def test_tablerow_body
    assert_equal(
      ["test"],
-      visit(%({% tablerow x in (1..5) %}{{ test }}{% endtablerow %})),
+      visit(%({% tablerow x in (1..5) %}{{ test }}{% endtablerow %}))
    )
  end

  def test_cycle
    assert_equal(
      ["test"],
-      visit(%({% cycle test %})),
+      visit(%({% cycle test %}))
    )
  end

  def test_assign
    assert_equal(
      ["test"],
-      visit(%({% assign x = test %})),
+      visit(%({% assign x = test %}))
    )
  end

  def test_capture
    assert_equal(
      ["test"],
-      visit(%({% capture x %}{{ test }}{% endcapture %})),
+      visit(%({% capture x %}{{ test }}{% endcapture %}))
    )
  end

  def test_include
    assert_equal(
      ["test"],
-      visit(%({% include test %})),
+      visit(%({% include test %}))
    )
  end

  def test_include_with
    assert_equal(
      ["test"],
-      visit(%({% include "hai" with test %})),
+      visit(%({% include "hai" with test %}))
    )
  end

  def test_include_for
    assert_equal(
      ["test"],
-      visit(%({% include "hai" for test %})),
-    )
-  end
-
-  def test_render_with
-    assert_equal(
-      ["test"],
-      visit(%({% render "hai" with test %})),
-    )
-  end
-
-  def test_render_for
-    assert_equal(
-      ["test"],
-      visit(%({% render "hai" for test %})),
+      visit(%({% include "hai" for test %}))
    )
  end

@@ -257,7 +243,7 @@ class ParseTreeVisitorTest < Minitest::Test
        ["test", []],
        ["xs", []],
      ]]],
-      traversal(%({% for x in xs offset: test %}{{ other }}{% endfor %})).visit,
+      traversal(%({% for x in xs offset: test %}{{ other }}{% endfor %})).visit
    )
  end

@@ -7,13 +7,13 @@ class PartialCacheUnitTest < Minitest::Test
    context = Liquid::Context.build(
      registers: {
        file_system: StubFileSystem.new('my_partial' => 'my partial body'),
-      },
+      }
    )

    partial = Liquid::PartialCache.load(
      'my_partial',
      context: context,
-      parse_context: Liquid::ParseContext.new,
+      parse_context: Liquid::ParseContext.new
    )

    assert_equal('my partial body', partial.render)
@@ -22,14 +22,14 @@ class PartialCacheUnitTest < Minitest::Test
  def test_reads_from_the_file_system_only_once_per_file
    file_system = StubFileSystem.new('my_partial' => 'some partial body')
    context     = Liquid::Context.build(
-      registers: { file_system: file_system },
+      registers: { file_system: file_system }
    )

    2.times do
      Liquid::PartialCache.load(
        'my_partial',
        context: context,
-        parse_context: Liquid::ParseContext.new,
+        parse_context: Liquid::ParseContext.new
      )
    end

@@ -39,31 +39,31 @@ class PartialCacheUnitTest < Minitest::Test
  def test_cache_state_is_stored_per_context
    parse_context      = Liquid::ParseContext.new
    shared_file_system = StubFileSystem.new(
-      'my_partial' => 'my shared value',
+      'my_partial' => 'my shared value'
    )
    context_one = Liquid::Context.build(
      registers: {
        file_system: shared_file_system,
-      },
+      }
    )
    context_two = Liquid::Context.build(
      registers: {
        file_system: shared_file_system,
-      },
+      }
    )

    2.times do
      Liquid::PartialCache.load(
        'my_partial',
        context: context_one,
-        parse_context: parse_context,
+        parse_context: parse_context
      )
    end

    Liquid::PartialCache.load(
      'my_partial',
      context: context_two,
-      parse_context: parse_context,
+      parse_context: parse_context
    )

    assert_equal(2, shared_file_system.file_read_count)
@@ -72,18 +72,18 @@ class PartialCacheUnitTest < Minitest::Test
  def test_cache_is_not_broken_when_a_different_parse_context_is_used
    file_system = StubFileSystem.new('my_partial' => 'some partial body')
    context     = Liquid::Context.build(
-      registers: { file_system: file_system },
+      registers: { file_system: file_system }
    )

    Liquid::PartialCache.load(
      'my_partial',
      context: context,
-      parse_context: Liquid::ParseContext.new(my_key: 'value one'),
+      parse_context: Liquid::ParseContext.new(my_key: 'value one')
    )
    Liquid::PartialCache.load(
      'my_partial',
      context: context,
-      parse_context: Liquid::ParseContext.new(my_key: 'value two'),
+      parse_context: Liquid::ParseContext.new(my_key: 'value two')
    )

    # Technically what we care about is that the file was parsed twice,
@@ -95,13 +95,13 @@ class PartialCacheUnitTest < Minitest::Test
    context = Liquid::Context.build(
      registers: {
        file_system: StubFileSystem.new('my_partial' => 'my partial body'),
-      },
+      }
    )

    partial = Liquid::PartialCache.load(
      'my_partial',
      context: context,
-      parse_context: Liquid::ParseContext.new,
+      parse_context: Liquid::ParseContext.new
    )

    assert_equal('my partial body', partial.render)
@@ -113,65 +113,16 @@ class PartialCacheUnitTest < Minitest::Test
      registers: {
        file_system: StubFileSystem.new('my_partial' => 'my partial body'),
        template_factory: template_factory,
-      },
+      }
    )

    partial = Liquid::PartialCache.load(
      'my_partial',
      context: context,
-      parse_context: Liquid::ParseContext.new,
+      parse_context: Liquid::ParseContext.new
    )

    assert_equal('my partial body', partial.render)
    assert_equal(1, template_factory.count)
  end
-
-  def test_cache_state_is_shared_for_subcontexts
-    parse_context      = Liquid::ParseContext.new
-    shared_file_system = StubFileSystem.new(
-      'my_partial' => 'my shared value',
-    )
-    context = Liquid::Context.build(
-      registers: Liquid::Registers.new(
-        file_system: shared_file_system,
-      ),
-    )
-    subcontext = context.new_isolated_subcontext
-
-    assert_equal(subcontext.registers[:cached_partials].object_id, context.registers[:cached_partials].object_id)
-
-    2.times do
-      Liquid::PartialCache.load(
-        'my_partial',
-        context: context,
-        parse_context: parse_context,
-      )
-
-      Liquid::PartialCache.load(
-        'my_partial',
-        context: subcontext,
-        parse_context: parse_context,
-      )
-    end
-
-    assert_equal(1, shared_file_system.file_read_count)
-  end
-
-  def test_uses_template_name_from_template_factory
-    template_factory = StubTemplateFactory.new
-    context = Liquid::Context.build(
-      registers: {
-        file_system: StubFileSystem.new('my_partial' => 'my partial body'),
-        template_factory: template_factory,
-      },
-    )
-
-    partial = Liquid::PartialCache.load(
-      'my_partial',
-      context: context,
-      parse_context: Liquid::ParseContext.new,
-    )
-
-    assert_equal('some/path/my_partial', partial.name)
-  end
 end
@@ -1,7 +1,6 @@
 # frozen_string_literal: true

 require 'test_helper'
-require 'timeout'

 class RegexpUnitTest < Minitest::Test
  include Liquid
@@ -38,22 +37,10 @@ class RegexpUnitTest < Minitest::Test

  def test_variable_parser
    assert_equal(['var'],                               'var'.scan(VariableParser))
-    assert_equal(['[var]'],                             '[var]'.scan(VariableParser))
    assert_equal(['var', 'method'],                     'var.method'.scan(VariableParser))
    assert_equal(['var', '[method]'],                   'var[method]'.scan(VariableParser))
    assert_equal(['var', '[method]', '[0]'],            'var[method][0]'.scan(VariableParser))
    assert_equal(['var', '["method"]', '[0]'],          'var["method"][0]'.scan(VariableParser))
    assert_equal(['var', '[method]', '[0]', 'method'],  'var[method][0].method'.scan(VariableParser))
  end
-
-  def test_variable_parser_with_large_input
-    Timeout.timeout(1) { assert_equal(['[var]'], '[var]'.scan(VariableParser)) }
-
-    very_long_string = "foo" * 1000
-
-    # valid dynamic lookup
-    Timeout.timeout(1) { assert_equal(["[#{very_long_string}]"], "[#{very_long_string}]".scan(VariableParser)) }
-    # invalid dynamic lookup with missing closing bracket
-    Timeout.timeout(1) { assert_equal([very_long_string], "[#{very_long_string}".scan(VariableParser)) }
-  end
 end # RegexpTest
@@ -2,11 +2,11 @@

 require 'test_helper'

-class RegistersUnitTest < Minitest::Test
+class StaticRegistersUnitTest < Minitest::Test
  include Liquid

  def test_set
-    static_register = Registers.new(a: 1, b: 2)
+    static_register = StaticRegisters.new(a: 1, b: 2)
    static_register[:b] = 22
    static_register[:c] = 33

@@ -16,13 +16,13 @@ class RegistersUnitTest < Minitest::Test
  end

  def test_get_missing_key
-    static_register = Registers.new
+    static_register = StaticRegisters.new

    assert_nil(static_register[:missing])
  end

  def test_delete
-    static_register = Registers.new(a: 1, b: 2)
+    static_register = StaticRegisters.new(a: 1, b: 2)
    static_register[:b] = 22
    static_register[:c] = 33

@@ -37,7 +37,7 @@ class RegistersUnitTest < Minitest::Test
  end

  def test_fetch
-    static_register = Registers.new(a: 1, b: 2)
+    static_register = StaticRegisters.new(a: 1, b: 2)
    static_register[:b] = 22
    static_register[:c] = 33

@@ -61,7 +61,7 @@ class RegistersUnitTest < Minitest::Test
  end

  def test_key
-    static_register = Registers.new(a: 1, b: 2)
+    static_register = StaticRegisters.new(a: 1, b: 2)
    static_register[:b] = 22
    static_register[:c] = 33

@@ -72,7 +72,7 @@ class RegistersUnitTest < Minitest::Test
  end

  def test_static_register_can_be_frozen
-    static_register = Registers.new(a: 1)
+    static_register = StaticRegisters.new(a: 1)

    static_register.static.freeze

@@ -94,14 +94,14 @@ class RegistersUnitTest < Minitest::Test
  end

  def test_new_static_retains_static
-    static_register = Registers.new(a: 1, b: 2)
+    static_register = StaticRegisters.new(a: 1, b: 2)
    static_register[:b] = 22
    static_register[:c] = 33

-    new_static_register = Registers.new(static_register)
+    new_static_register = StaticRegisters.new(static_register)
    new_static_register[:b] = 222

-    newest_static_register = Registers.new(new_static_register)
+    newest_static_register = StaticRegisters.new(new_static_register)
    newest_static_register[:c] = 333

    assert_equal(1, static_register[:a])
@@ -118,11 +118,11 @@ class RegistersUnitTest < Minitest::Test
  end

  def test_multiple_instances_are_unique
-    static_register_1 = Registers.new(a: 1, b: 2)
+    static_register_1 = StaticRegisters.new(a: 1, b: 2)
    static_register_1[:b] = 22
    static_register_1[:c] = 33

-    static_register_2 = Registers.new(a: 10, b: 20)
+    static_register_2 = StaticRegisters.new(a: 10, b: 20)
    static_register_2[:b] = 220
    static_register_2[:c] = 330

@@ -138,11 +138,11 @@ class RegistersUnitTest < Minitest::Test
  end

  def test_initialization_reused_static_same_memory_object
-    static_register_1 = Registers.new(a: 1, b: 2)
+    static_register_1 = StaticRegisters.new(a: 1, b: 2)
    static_register_1[:b] = 22
    static_register_1[:c] = 33

-    static_register_2 = Registers.new(static_register_1)
+    static_register_2 = StaticRegisters.new(static_register_1)

    assert_equal(1, static_register_2[:a])
    assert_equal(2, static_register_2[:b])
@@ -50,10 +50,9 @@ class StrainerFactoryUnitTest < Minitest::Test

    assert_match(
      /\ALiquid error: wrong number of arguments \((1 for 0|given 1, expected 0)\)\z/,
-      exception.message,
+      exception.message
    )
-    source = AccessScopeFilters.instance_method(:public_filter).source_location
-    assert_equal(source.map(&:to_s), exception.backtrace[0].split(':')[0..1])
+    assert_equal(exception.backtrace[0].split(':')[0], __FILE__)
  end

  def test_strainer_only_invokes_public_filter_methods
@@ -57,8 +57,8 @@ class StrainerTemplateUnitTest < Minitest::Test
  end

  def test_add_filter_does_not_raise_when_module_overrides_previously_registered_method
+    strainer = Context.new.strainer
    with_global_filter do
-      strainer = Context.new.strainer
      strainer.class.add_filter(PublicMethodOverrideFilter)
      assert(strainer.class.send(:filter_methods).include?('public_filter'))
    end
Author	SHA1	Message	Date
Christophe Naud-Dulude	02b6be4025	Potential fix	2021-11-30 14:10:34 -05:00
Christophe Naud-Dulude	f3638b3eb4	Test parsing of Liquid code in comments	2021-11-30 11:56:49 -05:00