require 'rails-dom-testing' module ActionDispatch module Assertions autoload :ResponseAssertions, 'action_dispatch/testing/assertions/response' autoload :RoutingAssertions, 'action_dispatch/testing/assertions/routing' extend ActiveSupport::Concern include ResponseAssertions include RoutingAssertions include Rails::Dom::Testing::Assertions def html_document @html_document ||= if @response.content_type.to_s =~ /xml$/ Nokogiri::XML::Document.parse(@response.body) else Nokogiri::HTML::Document.parse(@response.body) end end end end