I do test

The I don't test section should have familiarized you with the basics of test-driven development, but there are some more things you should learn before you will be able to efficiently use this methodology.

This section describes a few problems developers bump into when they write tests, and some ways to solve them. It also provides a quick review of the popular test runners and tools that are available in the Python community.

unittest pitfalls

The unittest module was introduced in Python 2.1 and has been massively used by developers since then. But some alternative test frameworks were created in the community by people who were frustrated by the weaknesses and limitations of unittest.

The following are the...