Testing

Test runners

Name	Short description	🚦
pytest	A framework for writing and running tests. We recommend pytest over unittest because pytest tends to encourage a cleaner style, there are also extensive plugins and it’s in widespread use.	Best
tox	A framework that allows running tests and packaging in different environments.	Best
unittest	Python’s built in framework for writing and running tests. Encourages use of classes as test fixtures.	Good

pytest plugins

Name	Short description	🚦
pytest-cov	A framework to generate coverage reports that plays nicely with pytest.	Best
pytest-mock	A framework to mock/patch objects that plays nicely with pytest.	Best
pyfakefs	A plugin to create a full fake file system, for situations where you need something more complicated than the built in tmp_path fixture.	Best

Property based testing

Name	Short description	🚦
Hypothesis	Allows one to easily test multiple inputs for a given function with ease	Best