Test-driven Development is seen as the development method that makes Continuous Deployment possible.
It is a method that is mainly used in new systems, since the architecture of the code must be set up for this.

Nevertheless, the day-to-day work of a software developer mainly consists of reading and modifying/expanding existing code.
Adding (unit) tests to this legacy code can provide tremendous value, just for regression testing.
This also ensures that an improvement can be made in the code, without fear that something will break.
In the best case, you can even adjust the code in such a way that the code lasts much longer!

During this session I will show you how to modify a piece of legacy code to allow for unit testing and extensive refactoring.

1 hour, level 300