The discussion on automated tests is hot topic. The approach has same number of advocates and skeptics. More and more tools eases testing, but also introduces a fundamental question: what, when and how to test? Practise and experience let's answer those questions or guide in the right direction.
In this talk usage examples of unit, functional and behavioral tests will be shown. Importance of properly handling dependencies and mocking them will be discussed as well. But most of important part will be hints on how to write code, that could be tested automaticaly.
Slides are available in interactive mode here: http://tdd.sznapka.pl/