Switch Django Evolution's test suite to use pytest.
Review Request #11917 — Created Jan. 9, 2022 and submitted
Historically, we've used
noseas the test runner, with a custom test
runner script responsible for setting up a Django environment for the
given version of Django.
nose1.x hasn't been updated in a long while, and isn't
compatible with modern versions of Python 3. The forks also don't
support Python 3 very well.
nose2does, but is so different that it's
not a great option for us.
Instead, we're moving to
pytest. This is a much more modern test
runner with a lot of interesting capabilities and a wide ecosystem of
We now use this and define all our custom setup logic using
conftest.py. This handles Django setup, and adds a
option for specifying which test database we want to use to run the
Developers can now run
pytestdirectly to run the test suite. The old
./tests/runtests.pystill works, but is deprecated, and merely wraps
Tested with manual test runs, using a variety of parameters.
Ran the whole Python/Django compatibility matrix using