Django Test Runs with Coverage

[danila-grobov]

#24199

[eleanorjboyd]

will review- sorry for the delay

[eleanorjboyd]

Hi @danila-grobov! Could you explain a bit how this PR works I am not sure I totally follow how this will add coverage for Django. From what I see, the PR just skips the Django run path if coverage is enabled (in the environment variable) but I didn't think that would correctly run Django tests if it followed the unittest path. Thanks

[danila-grobov]

Hi,

1. Skipping "django run path"

Most of the changed files in this PR are for testing setup. I used runner_with_cwd_env (a helper function only used in tests) to avoid reinventing the wheel. Other Django tests bypass execution.py, where coverage is set up, so runner_with_cwd_env was designed accordingly. However, my coverage tests required execution.py, so I added a small check to make it work as needed.

2. Implementing Coverage

Coverage wasn’t working because Django tests ran in a subprocess, preventing proper metric collection. To fix this, (in the django_handler.py) I imported the entire Django project module and used manage.py’s main function to run tests within the same process, allowing coverage to track execution correctly.

Hope this helps!