Support builtin pytest fixtures

[septatrix]

It would be great if this plugin could re-export annotated version of the builtin pytest fixtures. Only problem is that they are currently not publicly exported...

[tristan]

There is another problem that not all of them have unique types, or even pytest specific types.

e.g. capsys, capsysbinary, capfd and capfdbinary all share the CaptureFixture[...] type. So for these we would have to come up with a new unique name for an Annotated type to resolve it.

Also for things like tempdir that are typed as a pathlib.Path, I'd be hesitant to make a global resolution of that fixture based on the type alone.

If someone is in need of it right now, it can be done quite easily like so:

from typing import Annotated

from _pytest.capture import capsysbinary
from pytest import CaptureFixture

from pytest_annotated import Fixture

CapSysBinary = Annotated[CaptureFixture[bytes], Fixture(capsysbinary)]


def test_capsysbin(c: CapSysBinary):
    print("hello")
    captured = c.readouterr()
    assert captured.out == b"hello\n"

We could maybe add a bunch of these scoped to pytest_annotated (e.g. from pytest_annotated import CapSysBinary or from pytest_annotated import TempDir). If all the types can be mapped easily to a name that makes sense (without a lot of bikeshedding) I'd be happy to add it. I can't commit to doing it myself at this time though (I just don't have the time), happy to receive PRs though!