1 files changed, 3 insertions, 1 deletions
diff --git a/actionpack/lib/action_controller/testing/process.rb b/actionpack/lib/action_controller/testing/process.rb
index 6bc7d60d76..4185b803c5 100644
--- a/actionpack/lib/action_controller/testing/process.rb
+++ b/actionpack/lib/action_controller/testing/process.rb
@@ -249,6 +249,7 @@ module ActionController #:nodoc:
 
       temporary_routes = ActionController::Routing::RouteSet.new
       ActionController::Routing.module_eval { const_set :Routes, temporary_routes }
+      ActionController::Dispatcher.router = temporary_routes
 
       yield temporary_routes
     ensure
@@ -256,6 +257,7 @@ module ActionController #:nodoc:
         ActionController::Routing.module_eval { remove_const :Routes }
       end
       ActionController::Routing.const_set(:Routes, real_routes) if real_routes
+      ActionController::Dispatcher.router = ActionController::Routing::Routes
     end
   end
-end
-\ No newline at end of file
+end