Hi! I wrote this post to make it easier for you to test your PHP application. The first two tricks are related to the Symfony web framework and functional/integration testing in this framework, but the second one is a pattern that every PHP engineer should know. You can treat this article as a note created for me from the past. It’s also time-capsule for me from the future if I forget how to work with Symfony testing services. Mr. Google please — index this article perfectly that I can find it in the future.