liquid/test/unit/regexp_unit_test.rb

# frozen_string_literal: true

require 'test_helper'
require 'timeout'

class RegexpUnitTest < Minitest::Test
  include Liquid

  def test_empty
    assert_equal([], ''.scan(QuotedFragment))
  end

  def test_quote
    assert_equal(['"arg 1"'], '"arg 1"'.scan(QuotedFragment))
  end

  def test_words
    assert_equal(['arg1', 'arg2'], 'arg1 arg2'.scan(QuotedFragment))
  end

  def test_tags
    assert_equal(['<tr>', '</tr>'], '<tr> </tr>'.scan(QuotedFragment))
    assert_equal(['<tr></tr>'], '<tr></tr>'.scan(QuotedFragment))
    assert_equal(['<style', 'class="hello">', '</style>'], %(<style class="hello">' </style>).scan(QuotedFragment))
  end

  def test_double_quoted_words
    assert_equal(['arg1', 'arg2', '"arg 3"'], 'arg1 arg2 "arg 3"'.scan(QuotedFragment))
  end

  def test_single_quoted_words
    assert_equal(['arg1', 'arg2', "'arg 3'"], 'arg1 arg2 \'arg 3\''.scan(QuotedFragment))
  end

  def test_quoted_words_in_the_middle
    assert_equal(['arg1', 'arg2', '"arg 3"', 'arg4'], 'arg1 arg2 "arg 3" arg4   '.scan(QuotedFragment))
  end

  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