class Spec::Example::ExampleMatcher

def example_group_regex
  Regexp.escape(@example_group_description)
end

def example_group_regex_not_considering_modules
  Regexp.escape(@example_group_description.split('::').last)
end

def example_group_with_before_all_regexp
  Regexp.escape("#{@example_group_description} before(:all)")
end

def example_regexp
  Regexp.escape(@example_name)
end

def initialize(example_group_description, example_name)
  @example_group_description = example_group_description
  @example_name = example_name
end

def matches?(specified_examples)
  specified_examples.each do |specified_example|
    return true if matches_literal_example?(specified_example) || matches_example_not_considering_modules?(specified_example)
  end
  false
end

def matches_example_not_considering_modules?(specified_example)
  specified_example =~ /(^#{example_group_regex_not_considering_modules} #{example_regexp}$|^#{example_group_regex_not_considering_modules}$|^#{example_regexp}$)/
end

def matches_literal_example?(specified_example)
  specified_example =~ /(^#{example_group_regex} #{example_regexp}$|^#{example_group_regex}$|^#{example_group_with_before_all_regexp}$|^#{example_regexp}$)/
end