I was seeing this warning in a Django project when I thought I was correctly using timezone-aware dates everywhere:
RuntimeWarning: DateTimeField Shift.shift_start received a naive datetime (2022-04-01 00:00:00) while time zone support is active
pytest -Werror turns those warnings into errors that fail the tests.
Which means you can investigate them in the Python debugger by running:
pytest -Werror --pdb -x
--pdb starts the debugger at the warning (now error) and the
-x stops the tests after the first failure.
You can also set this in
pytest.ini - useful if you want ALL warnings to be failures in both development and CI.
Add the following to the
[pytest] # ... filterwarnings = error
If you do this you may find there are warnings you cannot fix (because they are in dependency libraries). You can ignore those like this:
[pytest] # ... filterwarnings = error ignore::arrow.factory.ArrowParseWarning
You need to figure out the full path to the warning. I used
--pdb to figure this out.
Created 2022-04-01T10:35:54-07:00, updated 2022-04-03T19:31:51-07:00 · History · Edit