autouse fixtures named with a leading underscore do not run

[tamird]

Very simple:

@pytest.fixture(autouse=True)
def foo(request: pytest.FixtureRequest) -> None:
  print("this runs")

@pytest.fixture(autouse=True)
def _foo(request: pytest.FixtureRequest) -> None:
  print("this does not run")

This causes ruff's PT004 to emit false positives. Let me know if this is intended behavior (though I didn't find documentation of that fact) and I'll send the bug over to ruff.

[bluetech]

I tried it and it works for me. Maybe you're using some plugin which affects this? Do you have a standalone reproduction?

[tamird]

Ah yeah, this is PEBKAC. My fixtures are shared between packages and glob imported into each package's conftest.py -- and underscored fixtures aren't being imported.