Comparing language YML files.rb

Comparing language YML files.rb

class Hash
  # Compares two hashes bases on only their keys.
  # Recursively matches nested hashes too.
  #
  # (Used for comparing translations hashes in test.)
  def =~(other, _raise = false)
    if _raise
      raise "Unmatched key: #{self.keys.inspect} / #{other.keys.inspect}" unless self.keys == other.keys 
    end  
    (self.keys == other.keys) && all?{ |k, v| !v.is_a?(Hash)  || other[k].=~(v, _raise)  }
  end
end

class LanguageTest < ActiveSupport::TestCase

  context "The language files" do
    setup do
      @en = YAML.load_file(File.join(RAILS_ROOT, 'lib', 'languages', 'en.yml'))['en']
      @nl = YAML.load_file(File.join(RAILS_ROOT, 'lib', 'languages', 'nl.yml'))['nl']
    end
    
    should "contain the same keys" do
      assert_nothing_raised do
        assert @en.=~(@nl, true)
      end
    end
  end

end