2 files changed, 3 insertions, 4 deletions
diff --git a/actionpack/lib/action_dispatch/testing/integration.rb b/actionpack/lib/action_dispatch/testing/integration.rb
index f953429e96..24898c7012 100644
--- a/actionpack/lib/action_dispatch/testing/integration.rb
+++ b/actionpack/lib/action_dispatch/testing/integration.rb
@@ -429,7 +429,6 @@ module ActionDispatch
           # reset the html_document variable, except for cookies/assigns calls
           unless method == 'cookies' || method == 'assigns'
             @html_document = nil
-            reset_template_assertion
           end
 
           integration_session.__send__(method, *args).tap do
diff --git a/actionpack/lib/action_dispatch/testing/test_process.rb b/actionpack/lib/action_dispatch/testing/test_process.rb
index 630e6a9b78..415ef80cd2 100644
--- a/actionpack/lib/action_dispatch/testing/test_process.rb
+++ b/actionpack/lib/action_dispatch/testing/test_process.rb
@@ -5,9 +5,9 @@ require 'active_support/core_ext/hash/indifferent_access'
 module ActionDispatch
   module TestProcess
     def assigns(key = nil)
-      assigns = {}.with_indifferent_access
-      @controller.view_assigns.each { |k, v| assigns.regular_writer(k, v) }
-      key.nil? ? assigns : assigns[key]
+      raise NoMethodError,
+        "assigns has been extracted to a gem. To continue using it,
+        add `gem 'rails-controller-testing'` to your Gemfile."
     end
 
     def session