Unit test the equivalent of manage.py "system checks"

[johnthagen]

I also just learned that you can run:

python manage.py check --settings config.settings --fail-level DEBUG --verbosity 3

• System check framework | Django documentation | Django

This is probably preferred since it’s documented and manage.py presumably has all of the settings and other things needed.

I’ll probably add this to my noxfile.py to run just before pytest is invoked.