Missing marker in fixturenames for sub-fixture

conftest.py

import pytest


@pytest.fixture(name="fish")
def fixture_fish(taste):
    pass


def pytest_generate_tests(metafunc):
    if "taste" in metafunc.fixturenames:
        print("** found taste")
        marker = metafunc.definition.get_closest_marker(name="taste")
        if marker:
            metafunc.parametrize("taste", marker.args, ids=None)
    else:
        print("** didn't find taste")
        

test.py

import pytest


@pytest.fixture(name="fish")
def fixture_fish(fish):  # , taste):
    yield fish


@pytest.mark.taste("dry")
def test_fish(fish):
    pass

Without adding taste as argument to the sub-fixture's list of arguments the marker/fixture taste will not be available for the global fish fixture. Means it is not part of metafunc.fixturenames.