An excellent book on the subject is Brian Okken's Python Testing with pytest, published by Pragmatic Programmers. He also has many other resources, about pytest and code testing in general, here.

Testing functions isn't hard, but how do you test user input and output? In my last article, I started looking at "pytest", a framework for testing Python programs that's really changed the way I look ...

Learn how to set up, run, and test a virtual environment in Visual Studio Code. Perfect for beginners managing Python dependencies efficiently.

The Playwright tool that automates web testing for JavaScript applications is now out in preview for Python.