instance method url_helpers

# File actionpack/lib/action_dispatch/system_test_case.rb, line 173
      def url_helpers
        @url_helpers ||=
          if ActionDispatch.test_app
            Class.new do
              include ActionDispatch.test_app.routes.url_helpers
              include ActionDispatch.test_app.routes.mounted_helpers

              def url_options
                default_url_options.reverse_merge(host: app_host)
              end

              def app_host
                Capybara.app_host || Capybara.current_session.server_url || DEFAULT_HOST
              end
            end.new
          end
      end