Unit-Tests in Python

https://code.tutsplus.com/tutorials/write-professional-unit-tests-in-python--cms-25835

https://medium.com/@rinu.gour123/unit-testing-with-python-unittest-ad045671010

https://docs.python-guide.org/writing/tests/

https://realpython.com/python-testing/#writing-your-first-test

https://www.journaldev.com/15899/python-unittest-unit-test-example

https://tox.wiki/en/latest/ – tox aims to automate and standardize testing in Python