"warning: instance variable @routes not initialized"

Author: amatsuda

actionpack/lib/action_dispatch/testing/assertions/routing.rb

@@ -165,7 +165,7 @@ def with_routing
 
       # ROUTES TODO: These assertions should really work in an integration context
       def method_missing(selector, *args, &block)
-        if defined?(@controller) && @controller && @routes && @routes.named_routes.route_defined?(selector)
+        if defined?(@controller) && @controller && defined?(@controller) && @routes && @routes.named_routes.route_defined?(selector)
           @controller.send(selector, *args, &block)
         else
           super