Over the last 8 years, the Rails application that we work on has steadily grown, and the test suite has grown with it. Today, our tests take 2 hours to run on a single machine. We run all of these tests as part of our integration process...in under 7 minutes. We developed a distributed test framework, Gorgon, to achieve this. In this presentation, I show why you should run all your tests as part of your integration process and how we achieve this with Gorgon.