# File lib/route_translator/translator/route_helpers.rb, line 25
      def add(old_name, named_route_collection)
        helper_list = named_route_collection.helper_names

        %w[path url].each do |suffix|
          helper_container = named_route_collection.send("#{suffix}_helpers_module""#{suffix}_helpers_module")
          new_helper_name = "#{old_name}_#{suffix}"

          helper_list.push(new_helper_name.to_sym) unless helper_list.include?(new_helper_name.to_sym)

          helper_container.__send__(:define_method, new_helper_name) do |*args|
            __send__(Translator.route_name_for(args, old_name, suffix, self), *args)
          end

          add_helpers_to_test_cases(helper_container) if ENV['RAILS_ENV'] == 'test'
        end
      end