Parse HTML as document fragment.

This is to match the changes in Rails Dom Testing rails/rails-dom-testing#20.

3 files changed, 3 insertions, 3 deletions

diff --git a/actionpack/lib/action_controller/test_case.rb b/actionpack/lib/action_controller/test_case.rb
index 8c10c3e7b0..41d33d4396 100644
--- a/actionpack/lib/action_controller/test_case.rb
+++ b/actionpack/lib/action_controller/test_case.rb
@@ -689,7 +689,7 @@ module ActionController
       private
 
       def document_root_element
-        html_document.root
+        html_document
       end
 
       def check_required_ivars
diff --git a/actionpack/lib/action_dispatch/testing/assertions.rb b/actionpack/lib/action_dispatch/testing/assertions.rb
index f325c35b57..41d00b5e2b 100644
--- a/actionpack/lib/action_dispatch/testing/assertions.rb
+++ b/actionpack/lib/action_dispatch/testing/assertions.rb
@@ -15,7 +15,7 @@ module ActionDispatch
       @html_document ||= if @response.content_type =~ /xml$/
         Nokogiri::XML::Document.parse(@response.body)
       else
-        Nokogiri::HTML::Document.parse(@response.body)
+        Nokogiri::HTML::DocumentFragment.parse(@response.body)
       end
     end
   end
diff --git a/actionpack/lib/action_dispatch/testing/integration.rb b/actionpack/lib/action_dispatch/testing/integration.rb
index 2d1c3ac5c7..c300a4ea0d 100644
--- a/actionpack/lib/action_dispatch/testing/integration.rb
+++ b/actionpack/lib/action_dispatch/testing/integration.rb
@@ -497,7 +497,7 @@ module ActionDispatch
     end
 
     def document_root_element
-      html_document.root
+      html_document
     end
   end
 end