Testing In Python

Chapter 3: Introduction to Pytest

Alfredo Deza

I remember when I started writing tests to be confused on how to run them. At the time, a project called nose was what everyone used, and it is what I ended up picking up. It still required one to use Python’s unit test library, which forces one to use classes and inheritance for tests. I was starting with Python and didn’t have a good grasp on classes, let alone on inheritance! The experience wasn’t great; I dreaded writing tests.

At some point, I found myself having some issue in a test that forced me to try out the Pytest project to check if it was a problem in my code or a problem with the test runner. Pytest didn’t have any issues, and I found the output and experience so lovely that I kept ...