pytest_fixture_setup hook doesn't run for session scoped fixture

[voronind]

test\conftest.py

import pytest

@pytest.fixture(scope='function')
# @pytest.fixture(scope='session')
def fixture_1():
    return None


@pytest.hookimpl(tryfirst=True)
def pytest_fixture_setup(fixturedef, request):
    print('Fixture setup: ', fixturedef.argname)

test/test_1.py

def test_1(fixture_1):
    assert 1

If we run pytest test we get

$ pytest test -s
============================= test session starts ==============================
platform linux -- Python 3.6.9, pytest-5.4.3, py-1.9.0, pluggy-0.13.1
rootdir: /home/voronin/projects/sintez_addons, inifile: setup.cfg
collected 1 item                                                               

test/test_1.py Fixture setup:  fixture_1
.

============================== 1 passed in 0.01s ==============================

If we change fixture_1 scope to session there is no hook running.

$ pytest test -s
============================= test session starts ==============================
platform linux -- Python 3.6.9, pytest-5.4.3, py-1.9.0, pluggy-0.13.1
rootdir: /home/voronin/projects/sintez_addons, inifile: setup.cfg
collected 1 item                                                               

test/test_1.py .

============================== 1 passed in 0.01s ===============================

IMHO problem in this code

hook = self._fixturemanager.session.gethookproxy(request.node.fspath)

In function scope case:

request.node.fspath == '/home/voronin/projects/sintez_addons'
hook is <_pytest.main.FSHookProxy object at 0x7f9200a69250>

In session scope case:

request.node.fspath == '/home/voronin/projects/sintez_addons/test/test_1.py'
hook is <pluggy.hooks._HookRelay object at 0x7f10c2952710>

[RonnyPfannschmidt]

I see, it's quite tricky to decide whether this is a feature or a bug

But im leaning towards bug since the location should matter

[nicoddemus]

I agree, but not sure this is fixable unfortunately... the session fixture is attached to the Session node, which is in the rootdir, so it won't pick up that conftest.py... sigh.

A workaround is to change your rootdir to the test directory by creating a test/pytest.ini file in there.

[Mathanraj-Sharma]

This hook not working with the package scope either.

[sarahbx]

imho, sounds like a feature. Separate fixture from hook.

test/conftest.py  # fixtures
conftest.py       # hooks
pytest.ini