Deprecate ActionDispatch::TestResponse response aliases

https://github.com/rails/rails/issues/30072

1 files changed, 21 insertions, 3 deletions

diff --git a/actionpack/lib/action_dispatch/testing/test_response.rb b/actionpack/lib/action_dispatch/testing/test_response.rb
index 0b7e9ca945..b23ea7479c 100644
--- a/actionpack/lib/action_dispatch/testing/test_response.rb
+++ b/actionpack/lib/action_dispatch/testing/test_response.rb
@@ -20,13 +20,31 @@ module ActionDispatch
     end
 
     # Was the response successful?
-    alias_method :success?, :successful?
+    def success?
+      ActiveSupport::Deprecation.warn(<<-MSG.squish)
+       The success? predicate is deprecated and will be removed in Rails 6.0.
+       Please use successful? as provided by Rack::Response::Helpers.
+      MSG
+      successful?
+    end
 
     # Was the URL not found?
-    alias_method :missing?, :not_found?
+    def missing?
+      ActiveSupport::Deprecation.warn(<<-MSG.squish)
+       The missing? predicate is deprecated and will be removed in Rails 6.0.
+       Please use not_found? as provided by Rack::Response::Helpers.
+      MSG
+      not_found?
+    end
 
     # Was there a server-side error?
-    alias_method :error?, :server_error?
+    def error?
+      ActiveSupport::Deprecation.warn(<<-MSG.squish)
+       The error? predicate is deprecated and will be removed in Rails 6.0.
+       Please use server_error? as provided by Rack::Response::Helpers.
+      MSG
+      server_error?
+    end
 
     def parsed_body
       @parsed_body ||= @response_parser.call(body)