It's good practice to write decoupled code. That good practice should include minimising the coupling between your test code and the code under test. This talk examines why this is important and how to achieve it.
Testing code is difficult right? Not if you design your code with testability in mind. Learn how with this talk.
This talk look at the properties of unit, integration and system tests in terms of what they test, how fast they run and how quick they are to write. Will look at how to get the most out of testing at each of these levels, how best to architect code for testing and where best to make comprises.
How do you effectively test software that relies on events rather than standard CRUD layers? We sat down with the creator of PHPUnit, Sebastian Bergmann, to discuss his talk at PHP UK Conference 2026.