“Fashion changes, but style endures.” ― Coco Chanel ScalaTest provides great flexibility in styles of testing. If you’re just getting started using ScalaTest and are migrating from some other testing tools, ScalaTest provides some recommendations in the “Selecting testing styles” section of their user guide. But for those just getting started, which style should you choose? ScalaTest recommends as a default choice FlatSpec for unit and integration tests and FeatureSpec for acceptance tests.