+
+# https://github.com/rails/rails/issues/20710
+module ActionDispatch
+ module Assertions
+ def html_document_with_rss
+ @html_document ||= if @response.content_type == Mime::RSS
+ Nokogiri::XML::Document.parse(@response.body)
+ else
+ html_document_without_rss
+ end
+ end
+
+ alias_method_chain :html_document, :rss
+ end
+end