Python Testing with pytest

Testing Multiple Python and pytest Versions with tox

In Chapter 11, ​tox and Continuous Integration​, we used tox to test Cards against multiple versions of Python. We’re going to do the same thing with our plugin, but also test against a couple versions of pytest.

Here’s our tox.ini for our plugin:

ch15/pytest_skip_slow_final/tox.ini

[pytest]
testpaths = tests

[tox]
envlist = py{37, 38, 39, 310}-pytest{62,70}
isolated_build = True

[testenv]
deps =
    pytest62: pytest==6.2.5
    pytest70: pytest==7.0.0

commands = pytest {posargs:tests}
description = Run pytest

We are using a couple of new tricks for tox:

• envlist = py{37, 38, 39, 310}-pytest{62,70}. The curly brackets and dashes are creating a test environment ...