TestProf III: guided and automated Ruby test profiling

The trend towards better developer experience (and developer tools) is increasing. Engineers crave smarter tools and faster feedback loops to maximize productivity. In the Ruby on Rails community, the latter usually implies long-running CI/CD builds due to slow tests. The introduction of TestProf six years ago made Ruby developer lives easier and their tests much faster. Even though the project has proven its effectiveness and could be considered complete, it’s never stopped evolving. Today, we’d like to share our updated tests profiling playbook along with new TestProf tools and features!.