Developers still hesitate to include writing tests in their everyday routine. There are numerous excuses, myths and misconceptions around: “they slow us down”, “we’ll never achieve 100 % code coverage, so why bother”, or “takes too much time to learn testing, we’re better off writing business logic instead”. When we get to the topic of writing tests first, the debate becomes even more heated. In the real world, where you get paid by code that ships, developers strive to write the most efficient tests possible to cover mission critical code and to quickly decide whether writing a functional test or series of unit tests is the best approach. Let us learn together how to use PHPUnit and TDD in the most efficient way possible, for extraordinary results. This workshop is for developers that start their projects by drawing a model of the database first, developers that are overwhelmed by the number of testing tools, don’t know where to start or simply want to level up their game.