Bump to v5.6.0.rc1

clean up all warnings by using new Environment

Gemfile

@@ -28,5 +28,3 @@ group :test do
     gem 'liquid-c', github: 'Shopify/liquid-c', ref: 'main'
   end
 end
-
-gem "strscan", ">= 3.1"

Rakefile

@@ -73,7 +73,7 @@ end
 
 namespace :benchmark do
   desc "Run the liquid benchmark with lax parsing"
-  task :lax do
+  task :run do
     ruby "./performance/benchmark.rb lax"
   end
 
@@ -82,9 +82,6 @@ namespace :benchmark do
     ruby "./performance/benchmark.rb strict"
   end
 
-  desc "Run the liquid benchmark with both lax and strict parsing"
-  task run: [:lax, :strict]
-
   desc "Run unit benchmarks"
   task :unit do
     Dir["./performance/unit/*_benchmark.rb"].each do |file|

lib/liquid.rb

@@ -44,15 +44,11 @@ module Liquid
   VariableParser              = /\[(?>[^\[\]]+|\g<0>)*\]|#{VariableSegment}+\??/o
 
   RAISE_EXCEPTION_LAMBDA = ->(_e) { raise }
-
-  singleton_class.send(:attr_accessor, :cache_classes)
-  self.cache_classes = true
 end
 
 require "liquid/version"
 require "liquid/deprecations"
 require "liquid/const"
-require "liquid/template/tag_registry"
 require 'liquid/standardfilters'
 require 'liquid/file_system'
 require 'liquid/parser_switching'
@@ -72,7 +68,6 @@ require 'liquid/extensions'
 require 'liquid/errors'
 require 'liquid/interrupts'
 require 'liquid/strainer_template'
-require 'liquid/strainer_factory'
 require 'liquid/expression'
 require 'liquid/context'
 require 'liquid/tag'

lib/liquid/context.rb

@@ -19,7 +19,7 @@ module Liquid
 
     # rubocop:disable Metrics/ParameterLists
     def self.build(environment: Environment.default, environments: {}, outer_scope: {}, registers: {}, rethrow_errors: false, resource_limits: nil, static_environments: {}, &block)
-      new(environments, outer_scope, registers, rethrow_errors, resource_limits, static_environments, &block)
+      new(environments, outer_scope, registers, rethrow_errors, resource_limits, static_environments, environment, &block)
     end
 
     def initialize(environments = {}, outer_scope = {}, registers = {}, rethrow_errors = false, resource_limits = nil, static_environments = {}, environment = Environment.default)
@@ -143,6 +143,7 @@ module Liquid
       check_overflow
 
       self.class.build(
+        environment: @environment,
         resource_limits: resource_limits,
         static_environments: static_environments,
         registers: Registers.new(registers),

lib/liquid/environment.rb

@@ -41,7 +41,7 @@ module Liquid
       # @return [Environment] The new environment instance.
       def build(tags: nil, file_system: nil, error_mode: nil, exception_renderer: nil)
         ret = new
-        ret.tags = Template::TagRegistry.new(tags) if tags
+        ret.tags = tags if tags
         ret.file_system = file_system if file_system
         ret.error_mode = error_mode if error_mode
         ret.exception_renderer = exception_renderer if exception_renderer
@@ -74,7 +74,7 @@ module Liquid
     # Initializes a new environment instance.
     # @api private
     def initialize
-      @tags = Template::TagRegistry.new(Tags::STANDARD_TAGS)
+      @tags = Tags::STANDARD_TAGS.dup
       @error_mode = :lax
       @strainer_template = Class.new(StrainerTemplate).tap do |klass|
         klass.add_filter(StandardFilters)

lib/liquid/lexer.rb

@@ -92,7 +92,6 @@ module Liquid
     SINGLE_COMPARISON_TOKENS = [].tap do |table|
       table["<".ord] = COMPARISON_LESS_THAN
       table[">".ord] = COMPARISON_GREATER_THAN
-      table.freeze
     end
 
     TWO_CHARS_COMPARISON_JUMP_TABLE = [].tap do |table|
@@ -104,17 +103,18 @@ module Liquid
         sub_table["=".ord] = COMPARISION_NOT_EQUAL
         sub_table.freeze
       end
-      table.freeze
     end
 
     COMPARISON_JUMP_TABLE = [].tap do |table|
       table["<".ord] = [].tap do |sub_table|
         sub_table["=".ord] = COMPARISON_LESS_THAN_OR_EQUAL
         sub_table[">".ord] = COMPARISON_NOT_EQUAL_ALT
+        RUBY_WHITESPACE.each { |c| sub_table[c.ord] = COMPARISON_LESS_THAN }
         sub_table.freeze
       end
       table[">".ord] = [].tap do |sub_table|
         sub_table["=".ord] = COMPARISON_GREATER_THAN_OR_EQUAL
+        RUBY_WHITESPACE.each { |c| sub_table[c.ord] = COMPARISON_GREATER_THAN }
         sub_table.freeze
       end
       table.freeze
@@ -233,6 +233,5 @@ module Liquid
     end
   end
 
-  # Remove this once we can depend on strscan >= 3.1.1
   Lexer = StringScanner.instance_methods.include?(:scan_byte) ? Lexer2 : Lexer1
 end

lib/liquid/parse_tree_visitor.rb

@@ -36,7 +36,7 @@ module Liquid
     protected
 
     def children
-      @node.respond_to?(:nodelist) ? Array(@node.nodelist) : []
+      @node.respond_to?(:nodelist) ? Array(@node.nodelist) : Const::EMPTY_ARRAY
     end
   end
 end

lib/liquid/strainer_factory.rb

@@ -1,23 +0,0 @@
-# frozen_string_literal: true
-
-module Liquid
-  # StrainerFactory is the factory for the filters system.
-  module StrainerFactory
-    extend self
-
-    def add_global_filter(filter, environment = Environment.default)
-      Deprecations.warn("StrainerFactory.add_global_filter", "Environment#register_filter")
-      environment.register_filter(filter)
-    end
-
-    def create(context, filters = Const::EMPTY_ARRAY, environment = Environment.default)
-      Deprecations.warn("StrainerFactory.create", "StrainerFactory.create_strainer")
-      environment.create_strainer(context, filters)
-    end
-
-    def global_filter_names(environment = Environment.default)
-      Deprecations.warn("StrainerFactory.global_filter_names", "Environment#filter_method_names")
-      Environment.strainer_template.filter_method_names
-    end
-  end
-end

lib/liquid/template/tag_registry.rb

@@ -1,44 +0,0 @@
-# frozen_string_literal: true
-
-module Liquid
-  class Template
-    class TagRegistry
-      include Enumerable
-
-      def initialize(tags = nil)
-        @tags  = {}
-        @cache = {}
-        tags.each { |tag_name, klass| self[tag_name] = klass }
-        Deprecations.warn("Template::TagRegistry", "Use a Environment instance with zeitwerk")
-      end
-
-      def [](tag_name)
-        return nil unless @tags.key?(tag_name)
-        return @cache[tag_name] if Liquid.cache_classes
-
-        lookup_class(@tags[tag_name]).tap { |o| @cache[tag_name] = o }
-      end
-
-      def delete(tag_name)
-        Deprecations.warn("Template::TagRegistry#delete", "Use a Environment instance with immutable tags")
-        @tags.delete(tag_name)
-        @cache.delete(tag_name)
-      end
-
-      def []=(tag_name, klass)
-        @tags[tag_name]  = klass.name
-        @cache[tag_name] = klass
-      end
-
-      def each(&block)
-        @tags.each(&block)
-      end
-
-      private
-
-      def lookup_class(name)
-        Object.const_get(name)
-      end
-    end
-  end
-end

lib/liquid/tokenizer.rb

@@ -1,9 +1,7 @@
 # frozen_string_literal: true
 
-require "strscan"
-
 module Liquid
-  class Tokenizer1
+  class Tokenizer
     attr_reader :line_number, :for_liquid_tag
 
     def initialize(source, line_numbers = false, line_number: nil, for_liquid_tag: false)
@@ -44,147 +42,4 @@ module Liquid
       tokens
     end
   end
-
-  class Tokenizer2
-    attr_reader :line_number, :for_liquid_tag
-
-    TAG_END = /%\}/
-    TAG_OR_VARIABLE_START = /\{[\{\%]/
-    NEWLINE = /\n/
-
-    OPEN_CURLEY = "{".ord
-    CLOSE_CURLEY = "}".ord
-    PERCENTAGE = "%".ord
-
-    def initialize(source, line_numbers = false, line_number: nil, for_liquid_tag: false)
-      @line_number    = line_number || (line_numbers ? 1 : nil)
-      @for_liquid_tag = for_liquid_tag
-      @source         = source
-      @offset         = 0
-      @tokens         = []
-      tokenize
-    end
-
-    def shift
-      token = @tokens[@offset]
-
-      return unless token
-
-      @offset += 1
-
-      if @line_number
-        @line_number += @for_liquid_tag ? 1 : token.count("\n")
-      end
-
-      token
-    end
-
-    private
-
-    def tokenize
-      if @for_liquid_tag
-        @tokens = @source.split("\n")
-      else
-        @ss = StringScanner.new(@source)
-        @tokens << shift_normal until @ss.eos?
-      end
-
-      @ss = nil
-      @source = nil
-    end
-
-    def shift_normal
-      token = next_token
-
-      return unless token
-
-      token
-    end
-
-    def next_token
-      # possible states: :text, :tag, :variable
-      byte_a = @ss.peek_byte
-
-      if byte_a == OPEN_CURLEY
-        @ss.scan_byte
-
-        byte_b = @ss.peek_byte
-
-        if byte_b == PERCENTAGE
-          @ss.scan_byte
-          return next_tag_token
-        elsif byte_b == OPEN_CURLEY
-          @ss.scan_byte
-          return next_variable_token
-        end
-
-        @ss.pos -= 1
-      end
-
-      next_text_token
-    end
-
-    def next_text_token
-      start = @ss.pos
-
-      unless @ss.skip_until(TAG_OR_VARIABLE_START)
-        token = @ss.rest
-        @ss.terminate
-        return token
-      end
-
-      pos = @ss.pos -= 2
-      @source.byteslice(start, pos - start)
-    end
-
-    def next_variable_token
-      start = @ss.pos - 2
-
-      byte_a = byte_b = @ss.scan_byte
-
-      while byte_b
-        byte_a = @ss.scan_byte while byte_a && (byte_a != CLOSE_CURLEY && byte_a != OPEN_CURLEY)
-
-        break unless byte_a
-
-        if @ss.eos?
-          return byte_a == CLOSE_CURLEY ? @source.byteslice(start, @ss.pos - start) : "{{"
-        end
-
-        byte_b = @ss.scan_byte
-
-        if byte_a == CLOSE_CURLEY
-          if byte_b == CLOSE_CURLEY
-            return @source.byteslice(start, @ss.pos - start)
-          elsif byte_b != CLOSE_CURLEY
-            @ss.pos -= 1
-            return @source.byteslice(start, @ss.pos - start)
-          end
-        elsif byte_a == OPEN_CURLEY && byte_b == PERCENTAGE
-          return next_tag_token_with_start(start)
-        end
-
-        byte_a = byte_b
-      end
-
-      "{{"
-    end
-
-    def next_tag_token
-      start = @ss.pos - 2
-      if (len = @ss.skip_until(TAG_END))
-        @source.byteslice(start, len + 2)
-      else
-        "{%"
-      end
-    end
-
-    def next_tag_token_with_start(start)
-      @ss.skip_until(TAG_END)
-      @source.byteslice(start, @ss.pos - start)
-    end
-  end
-
-  # Remove this once we can depend on strscan >= 3.1.1
-  Tokenizer = StringScanner.instance_methods.include?(:scan_byte) ? Tokenizer2 : Tokenizer1
 end

lib/liquid/variable.rb

@@ -68,7 +68,7 @@ module Liquid
       @name = parse_context.parse_expression(p.expression)
       while p.consume?(:pipe)
         filtername = p.consume(:id)
-        filterargs = p.consume?(:colon) ? parse_filterargs(p) : []
+        filterargs = p.consume?(:colon) ? parse_filterargs(p) : Const::EMPTY_ARRAY
         @filters << parse_filter_expressions(filtername, filterargs)
       end
       p.consume(:end_of_string)

lib/liquid/version.rb

@@ -2,5 +2,5 @@
 # frozen_string_literal: true
 
 module Liquid
-  VERSION = "5.6.0.alpha"
+  VERSION = "5.6.0.rc1"
 end

performance/benchmark.rb

@@ -4,21 +4,19 @@ require 'benchmark/ips'
 require_relative 'theme_runner'
 
 RubyVM::YJIT.enable if defined?(RubyVM::YJIT)
-Liquid::Template.error_mode = ARGV.first.to_sym if ARGV.first
+Liquid::Environment.default.error_mode = ARGV.first.to_sym if ARGV.first
+
 profiler = ThemeRunner.new
 
 Benchmark.ips do |x|
-  x.time   = 20
-  x.warmup = 10
+  x.time   = 10
+  x.warmup = 5
 
   puts
   puts "Running benchmark for #{x.time} seconds (with #{x.warmup} seconds warmup)."
   puts
 
-  phase = ENV["PHASE"] || "all"
-
-  x.report("tokenize:") { profiler.tokenize } if phase == "all" || phase == "tokenize"
-  x.report("parse:") { profiler.compile } if phase == "all" || phase == "parse"
-  x.report("render:") { profiler.render } if phase == "all" || phase == "render"
-  x.report("parse & render:") { profiler.run } if phase == "all" || phase == "run"
+  x.report("parse:") { profiler.compile }
+  x.report("render:") { profiler.render }
+  x.report("parse & render:") { profiler.run }
 end

performance/shopify/liquid.rb

@@ -11,11 +11,12 @@ require_relative 'shop_filter'
 require_relative 'tag_filter'
 require_relative 'weight_filter'
 
-Liquid::Template.register_tag('paginate', Paginate)
-Liquid::Template.register_tag('form', CommentForm)
+default_environment = Liquid::Environment.default
+default_environment.register_tag('paginate', Paginate)
+default_environment.register_tag('form', CommentForm)
 
-Liquid::Template.register_filter(JsonFilter)
-Liquid::Template.register_filter(MoneyFilter)
-Liquid::Template.register_filter(WeightFilter)
-Liquid::Template.register_filter(ShopFilter)
-Liquid::Template.register_filter(TagFilter)
+default_environment.register_filter(JsonFilter)
+default_environment.register_filter(MoneyFilter)
+default_environment.register_filter(WeightFilter)
+default_environment.register_filter(ShopFilter)
+default_environment.register_filter(TagFilter)

performance/theme_runner.rb

@@ -48,14 +48,6 @@ class ThemeRunner
     end
   end
 
-  # `tokenize` will just test the tokenizen portion of liquid without any templates
-  def tokenize
-    @tests.each do |test_hash|
-      tokenizer = Liquid::Tokenizer.new(test_hash[:liquid], true)
-      while tokenizer.shift; end
-    end
-  end
-
   # `run` is called to benchmark rendering and compiling at the same time
   def run
     each_test do |liquid, layout, assigns, page_template, template_name|

test/integration/context_test.rb

@@ -672,6 +672,21 @@ class ContextTest < Minitest::Test
     assert_includes(result, "unscoped_products_count: 5")
   end
 
+  def test_new_isolated_context_inherits_parent_environment
+    global_environment = Liquid::Environment.build(tags: {})
+    context = Context.build(environment: global_environment)
+
+    subcontext = context.new_isolated_subcontext
+    assert_equal(global_environment, subcontext.environment)
+  end
+
+  def test_newly_built_context_inherits_parent_environment
+    global_environment = Liquid::Environment.build(tags: {})
+    context = Context.build(environment: global_environment)
+    assert_equal(global_environment, context.environment)
+    assert(context.environment.tags.each.to_a.empty?)
+  end
+
   private
 
   def assert_no_object_allocations

test/integration/error_handling_test.rb

@@ -203,20 +203,19 @@ class ErrorHandlingTest < Minitest::Test
   end
 
   def test_setting_default_exception_renderer
-    old_exception_renderer = Liquid::Template.default_exception_renderer
     exceptions = []
-    Liquid::Template.default_exception_renderer = ->(e) {
+    default_exception_renderer = ->(e) {
       exceptions << e
       ''
     }
-    template = Liquid::Template.parse('This is a runtime error: {{ errors.argument_error }}')
+
+    env = Liquid::Environment.build(exception_renderer: default_exception_renderer)
+    template = Liquid::Template.parse('This is a runtime error: {{ errors.argument_error }}', environment: env)
 
     output = template.render('errors' => ErrorDrop.new)
 
     assert_equal('This is a runtime error: ', output)
     assert_equal([Liquid::ArgumentError], template.errors.map(&:class))
-  ensure
-    Liquid::Template.default_exception_renderer = old_exception_renderer if old_exception_renderer
   end
 
   def test_setting_exception_renderer_on_environment

test/integration/parsing_quirks_test.rb

@@ -134,14 +134,6 @@ class ParsingQuirksTest < Minitest::Test
 
   def test_incomplete_expression
     with_error_mode(:lax) do
-      assert_template_result("false", "{{ false - }}")
-      assert_template_result("false", "{{ false > }}")
-      assert_template_result("false", "{{ false < }}")
-      assert_template_result("false", "{{ false = }}")
-      assert_template_result("false", "{{ false ! }}")
-      assert_template_result("false", "{{ false 1 }}")
-      assert_template_result("false", "{{ false a }}")
-
       assert_template_result("false", "{% liquid assign foo = false -\n%}{{ foo }}")
       assert_template_result("false", "{% liquid assign foo = false >\n%}{{ foo }}")
       assert_template_result("false", "{% liquid assign foo = false <\n%}{{ foo }}")

test/integration/profiler_test.rb

@@ -33,7 +33,7 @@ class ProfilerTest < Minitest::Test
   end
 
   def setup
-    Liquid::Template.file_system = ProfilingFileSystem.new
+    Liquid::Environment.default.file_system = ProfilingFileSystem.new
   end
 
   def test_template_allows_flagging_profiling

test/integration/tags/include_tag_test.rb

@@ -174,10 +174,10 @@ class IncludeTagTest < Minitest::Test
       end
     end
 
-    Liquid::Template.file_system = infinite_file_system.new
+    env = Liquid::Environment.build(file_system: infinite_file_system.new)
 
     assert_raises(Liquid::StackLevelError) do
-      Template.parse("{% include 'loop' %}").render!
+      Template.parse("{% include 'loop' %}", environment: env).render!
     end
   end
 
@@ -264,26 +264,27 @@ class IncludeTagTest < Minitest::Test
   end
 
   def test_does_not_add_error_in_strict_mode_for_missing_variable
-    Liquid::Template.file_system = TestFileSystem.new
+    env = Liquid::Environment.build(file_system: TestFileSystem.new)
 
-    a = Liquid::Template.parse(' {% include "nested_template" %}')
+    a = Liquid::Template.parse(' {% include "nested_template" %}', environment: env)
     a.render!
     assert_empty(a.errors)
   end
 
   def test_passing_options_to_included_templates
-    Liquid::Template.file_system = TestFileSystem.new
+    env = Liquid::Environment.build(file_system: TestFileSystem.new)
+
     assert_raises(Liquid::SyntaxError) do
-      Template.parse("{% include template %}", error_mode: :strict).render!("template" => '{{ "X" || downcase }}')
+      Template.parse("{% include template %}", error_mode: :strict, environment: env).render!("template" => '{{ "X" || downcase }}')
     end
     with_error_mode(:lax) do
-      assert_equal('x', Template.parse("{% include template %}", error_mode: :strict, include_options_blacklist: true).render!("template" => '{{ "X" || downcase }}'))
+      assert_equal('x', Template.parse("{% include template %}", error_mode: :strict, include_options_blacklist: true, environment: env).render!("template" => '{{ "X" || downcase }}'))
     end
     assert_raises(Liquid::SyntaxError) do
-      Template.parse("{% include template %}", error_mode: :strict, include_options_blacklist: [:locale]).render!("template" => '{{ "X" || downcase }}')
+      Template.parse("{% include template %}", error_mode: :strict, include_options_blacklist: [:locale], environment: env).render!("template" => '{{ "X" || downcase }}')
     end
     with_error_mode(:lax) do
-      assert_equal('x', Template.parse("{% include template %}", error_mode: :strict, include_options_blacklist: [:error_mode]).render!("template" => '{{ "X" || downcase }}'))
+      assert_equal('x', Template.parse("{% include template %}", error_mode: :strict, include_options_blacklist: [:error_mode], environment: env).render!("template" => '{{ "X" || downcase }}'))
     end
   end
 
@@ -334,8 +335,11 @@ class IncludeTagTest < Minitest::Test
   end
 
   def test_including_with_strict_variables
-    Liquid::Template.file_system = StubFileSystem.new({ "simple" => "simple" })
-    template = Liquid::Template.parse("{% include 'simple' %}", error_mode: :warn)
+    env = Liquid::Environment.build(
+      file_system: StubFileSystem.new('simple' => 'simple'),
+    )
+
+    template = Liquid::Template.parse("{% include 'simple' %}", error_mode: :warn, environment: env)
     template.render(nil, strict_variables: true)
 
     assert_equal([], template.errors)

test/integration/tags/raw_tag_test.rb

@@ -16,7 +16,6 @@ class RawTagTest < Minitest::Test
     assert_template_result('>{{ test }}<', '> {%- raw -%}{{ test }}{%- endraw -%} <')
     assert_template_result("> inner  <", "> {%- raw -%} inner {%- endraw %} <")
     assert_template_result("> inner <", "> {%- raw -%} inner {%- endraw -%} <")
-    assert_template_result("{Hello}", "{% raw %}{{% endraw %}Hello{% raw %}}{% endraw %}")
   end
 
   def test_open_tag_in_raw

test/integration/tags/render_tag_test.rb

@@ -82,19 +82,22 @@ class RenderTagTest < Minitest::Test
   end
 
   def test_recursively_rendered_template_does_not_produce_endless_loop
-    Liquid::Template.file_system = StubFileSystem.new('loop' => '{% render "loop" %}')
+    env = Liquid::Environment.build(
+      file_system: StubFileSystem.new('loop' => '{% render "loop" %}'),
+    )
 
     assert_raises(Liquid::StackLevelError) do
-      Template.parse('{% render "loop" %}').render!
+      Template.parse('{% render "loop" %}', environment: env).render!
     end
   end
 
   def test_sub_contexts_count_towards_the_same_recursion_limit
-    Liquid::Template.file_system = StubFileSystem.new(
-      'loop_render' => '{% render "loop_render" %}',
+    env = Liquid::Environment.build(
+      file_system: StubFileSystem.new('loop_render' => '{% render "loop_render" %}'),
     )
+
     assert_raises(Liquid::StackLevelError) do
-      Template.parse('{% render "loop_render" %}').render!
+      Template.parse('{% render "loop_render" %}', environment: env).render!
     end
   end
 

test/test_helper.rb

@@ -88,11 +88,11 @@ module Minitest
     end
 
     def with_error_mode(mode)
-      old_mode = Liquid::Template.error_mode
-      Liquid::Template.error_mode = mode
+      old_mode = Liquid::Environment.default.error_mode
+      Liquid::Environment.default.error_mode = mode
       yield
     ensure
-      Liquid::Template.error_mode = old_mode
+      Liquid::Environment.default.error_mode = old_mode
     end
 
     def with_custom_tag(tag_name, tag_class, &block)

test/unit/environment_filter_test.rb

@@ -2,7 +2,7 @@
 
 require 'test_helper'
 
-class StrainerFactoryUnitTest < Minitest::Test
+class EnvironmentFilterTest < Minitest::Test
   include Liquid
 
   module AccessScopeFilters
@@ -16,8 +16,6 @@ class StrainerFactoryUnitTest < Minitest::Test
     private :private_filter
   end
 
-  StrainerFactory.add_global_filter(AccessScopeFilters)
-
   module LateAddedFilter
     def late_added_filter(_input)
       "filtered"
@@ -25,24 +23,28 @@ class StrainerFactoryUnitTest < Minitest::Test
   end
 
   def setup
-    @context = Context.build
+    @environment = Liquid::Environment.build do |env|
+      env.register_filter(AccessScopeFilters)
+    end
+
+    @context = Context.build(environment: @environment)
   end
 
   def test_strainer
-    strainer = StrainerFactory.create(@context)
+    strainer = @environment.create_strainer(@context)
     assert_equal(5, strainer.invoke('size', 'input'))
     assert_equal("public", strainer.invoke("public_filter"))
   end
 
   def test_stainer_raises_argument_error
-    strainer = StrainerFactory.create(@context)
+    strainer = @environment.create_strainer(@context)
     assert_raises(Liquid::ArgumentError) do
       strainer.invoke("public_filter", 1)
     end
   end
 
   def test_stainer_argument_error_contains_backtrace
-    strainer = StrainerFactory.create(@context)
+    strainer = @environment.create_strainer(@context)
 
     exception = assert_raises(Liquid::ArgumentError) do
       strainer.invoke("public_filter", 1)
@@ -57,7 +59,7 @@ class StrainerFactoryUnitTest < Minitest::Test
   end
 
   def test_strainer_only_invokes_public_filter_methods
-    strainer = StrainerFactory.create(@context)
+    strainer = @environment.create_strainer(@context)
     assert_equal(false, strainer.class.invokable?('__test__'))
     assert_equal(false, strainer.class.invokable?('test'))
     assert_equal(false, strainer.class.invokable?('instance_eval'))
@@ -66,18 +68,18 @@ class StrainerFactoryUnitTest < Minitest::Test
   end
 
   def test_strainer_returns_nil_if_no_filter_method_found
-    strainer = StrainerFactory.create(@context)
+    strainer = @environment.create_strainer(@context)
     assert_nil(strainer.invoke("private_filter"))
     assert_nil(strainer.invoke("undef_the_filter"))
   end
 
   def test_strainer_returns_first_argument_if_no_method_and_arguments_given
-    strainer = StrainerFactory.create(@context)
+    strainer = @environment.create_strainer(@context)
     assert_equal("password", strainer.invoke("undef_the_method", "password"))
   end
 
   def test_strainer_only_allows_methods_defined_in_filters
-    strainer = StrainerFactory.create(@context)
+    strainer = @environment.create_strainer(@context)
     assert_equal("1 + 1", strainer.invoke("instance_eval", "1 + 1"))
     assert_equal("puts",  strainer.invoke("__send__", "puts", "Hi Mom"))
     assert_equal("has_method?", strainer.invoke("invoke", "has_method?", "invoke"))
@@ -86,7 +88,9 @@ class StrainerFactoryUnitTest < Minitest::Test
   def test_strainer_uses_a_class_cache_to_avoid_method_cache_invalidation
     a = Module.new
     b = Module.new
-    strainer = StrainerFactory.create(@context, [a, b])
+
+    strainer = @environment.create_strainer(@context, [a, b])
+
     assert_kind_of(StrainerTemplate, strainer)
     assert_kind_of(a, strainer)
     assert_kind_of(b, strainer)
@@ -94,8 +98,10 @@ class StrainerFactoryUnitTest < Minitest::Test
   end
 
   def test_add_global_filter_clears_cache
-    assert_equal('input', StrainerFactory.create(@context).invoke('late_added_filter', 'input'))
-    StrainerFactory.add_global_filter(LateAddedFilter)
-    assert_equal('filtered', StrainerFactory.create(nil).invoke('late_added_filter', 'input'))
+    assert_equal('input', @environment.create_strainer(@context).invoke('late_added_filter', 'input'))
+
+    @environment.register_filter(LateAddedFilter)
+
+    assert_equal('filtered', @environment.create_strainer(nil).invoke('late_added_filter', 'input'))
   end
 end

test/unit/strainer_template_unit_test.rb

@@ -25,11 +25,13 @@ class StrainerTemplateUnitTest < Minitest::Test
   end
 
   def test_add_filter_raises_when_module_privately_overrides_registered_public_methods
-    strainer = Context.new.strainer
-
     error = assert_raises(Liquid::MethodOverrideError) do
-      strainer.class.add_filter(PrivateMethodOverrideFilter)
+      Liquid::Environment.build do |env|
+        env.register_filter(PublicMethodOverrideFilter)
+        env.register_filter(PrivateMethodOverrideFilter)
+      end
     end
+
     assert_equal('Liquid error: Filter overrides registered public methods as non public: public_filter', error.message)
   end
 
@@ -42,11 +44,13 @@ class StrainerTemplateUnitTest < Minitest::Test
   end
 
   def test_add_filter_raises_when_module_overrides_registered_public_method_as_protected
-    strainer = Context.new.strainer
-
     error = assert_raises(Liquid::MethodOverrideError) do
-      strainer.class.add_filter(ProtectedMethodOverrideFilter)
+      Liquid::Environment.build do |env|
+        env.register_filter(PublicMethodOverrideFilter)
+        env.register_filter(ProtectedMethodOverrideFilter)
+      end
     end
+
     assert_equal('Liquid error: Filter overrides registered public methods as non public: public_filter', error.message)
   end
 

test/unit/template_unit_test.rb

@@ -20,50 +20,12 @@ class TemplateUnitTest < Minitest::Test
     assert_equal(fixture("en_locale.yml"), locale.path)
   end
 
-  def test_with_cache_classes_tags_returns_the_same_class
-    original_cache_setting = Liquid.cache_classes
-    Liquid.cache_classes   = true
-
-    original_klass = Class.new
-    Object.send(:const_set, :CustomTag, original_klass)
-    Template.register_tag('custom', CustomTag)
-
-    Object.send(:remove_const, :CustomTag)
-
-    new_klass = Class.new
-    Object.send(:const_set, :CustomTag, new_klass)
-
-    assert(Template.tags['custom'].equal?(original_klass))
-  ensure
-    Object.send(:remove_const, :CustomTag)
-    Liquid.cache_classes = original_cache_setting
-  end
-
-  def test_without_cache_classes_tags_reloads_the_class
-    original_cache_setting = Liquid.cache_classes
-    Liquid.cache_classes   = false
-
-    original_klass = Class.new
-    Object.send(:const_set, :CustomTag, original_klass)
-    with_custom_tag('custom', CustomTag) do
-      Object.send(:remove_const, :CustomTag)
-
-      new_klass = Class.new
-      Object.send(:const_set, :CustomTag, new_klass)
-
-      assert(Template.tags['custom'].equal?(new_klass))
-    end
-  ensure
-    Object.send(:remove_const, :CustomTag)
-    Liquid.cache_classes = original_cache_setting
-  end
-
   class FakeTag; end
 
   def test_tags_can_be_looped_over
     with_custom_tag('fake', FakeTag) do
       result = Template.tags.map { |name, klass| [name, klass] }
-      assert(result.include?(["fake", "TemplateUnitTest::FakeTag"]))
+      assert(result.include?(["fake", TemplateUnitTest::FakeTag]))
     end
   end
 

test/unit/tokenizer_unit_test.rb

@@ -6,7 +6,6 @@ class TokenizerTest < Minitest::Test
   def test_tokenize_strings
     assert_equal([' '], tokenize(' '))
     assert_equal(['hello world'], tokenize('hello world'))
-    assert_equal(['{}'], tokenize('{}'))
   end
 
   def test_tokenize_variables
@@ -31,19 +30,6 @@ class TokenizerTest < Minitest::Test
     assert_equal([1, 1, 3], tokenize_line_numbers(" {{\n funk \n}} "))
   end
 
-  def test_incomplete_curly_braces
-    assert_equal(["{{.}", " "], tokenize('{{.} '))
-    assert_equal(["{{}", "%}"], tokenize('{{}%}'))
-    assert_equal(["{{}}", "}"], tokenize('{{}}}'))
-  end
-
-  def test_unmatching_start_and_end
-    assert_equal(["{{%}"], tokenize('{{%}'))
-    assert_equal(["{{%%%}}"], tokenize('{{%%%}}'))
-    assert_equal(["{%", "}}"], tokenize('{%}}'))
-    assert_equal(["{%%}", "}"], tokenize('{%%}}'))
-  end
-
   private
 
   def new_tokenizer(source, parse_context: Liquid::ParseContext.new, start_line_number: nil)