How to call fixture once for one test function with parameters?

[cidlik]

Hello!
I'm apologize for my bad English.
test_main.py

import logging

import pytest

logger = logging.getLogger(__name__)


@pytest.mark.parametrize("param", ["val1", "val2"])
def test_dummy_1(setup_tests, parametrized_fixture, param):
    assert "data for test_dummy_1" in parametrized_fixture


def test_dummy_2(setup_tests, parametrized_fixture):
    assert "data for test_dummy_2" in parametrized_fixture

conftest.py

import logging
import os

import pytest

logger = logging.getLogger(__name__)


@pytest.fixture(scope="module", autouse=True)
def parametrized_fixture(request):
    logger.debug("parametrized_fixture")
    current_test = os.environ.get("PYTEST_CURRENT_TEST").split(":")[-1].split(" ")[0].split("[")[0]
    test_func = getattr(request.module, current_test)
    if hasattr(test_func, "pytestmark"):
        param = next((m for m in test_func.pytestmark if m.name == "parametrized_fixture_data"), None).args[0]
        logger.warning(f"param = {param}")
        yield param
    else:
        yield


@pytest.fixture
def setup_tests(parametrized_fixture):
    logger.debug("setup_tests")

I expect that fixture parametrized_fixture wil call once for test_dummy_1 and for test_dummy_2.
But in reality that fixture call once for all module. Is the way to use fixture for every functions, but do not call then uses one function with different parameters?

Expected behavior

platform linux -- Python 3.8.13, pytest-7.3.1, pluggy-1.0.0
rootdir: /home/rkuznecov/dummy-python-prj
configfile: pytest.ini
collected 3 items                                                                                  

tests/param_deco/test_main.py::test_dummy_1[val1]
------------------------------------------ live log setup ------------------------------------------
2023-05-05 12:14:22.285 DEBUG    parametrized_fixture
2023-05-05 12:14:22.285 WARNING  param = data for test_dummy_1
2023-05-05 12:14:22.285 DEBUG    setup_tests
PASSED                                                                                       [ 33%]
tests/param_deco/test_main.py::test_dummy_1[val2] 
------------------------------------------ live log setup ------------------------------------------
2023-05-05 12:14:22.287 DEBUG    setup_tests
PASSED                                                                                       [ 66%]
tests/param_deco/test_main.py::test_dummy_2
------------------------------------------ live log setup ------------------------------------------
2023-05-05 12:14:22.288 DEBUG    parametrized_fixture
2023-05-05 12:14:22.288 WARNING  param = data for test_dummy_2
2023-05-05 12:14:22.289 DEBUG    setup_tests
PASSED                                                                                       [100%]

Reality

platform linux -- Python 3.8.13, pytest-7.3.1, pluggy-1.0.0
rootdir: /home/rkuznecov/dummy-python-prj
configfile: pytest.ini
collected 3 items                                                                                  

tests/param_deco/test_main.py::test_dummy_1[val1] 
------------------------------------------ live log setup ------------------------------------------
2023-05-05 12:15:50.061 DEBUG    parametrized_fixture
2023-05-05 12:15:50.062 WARNING  param = data for test_dummy_1
2023-05-05 12:15:50.062 DEBUG    setup_tests
PASSED                                                                                       [ 33%]
tests/param_deco/test_main.py::test_dummy_1[val2] 
------------------------------------------ live log setup ------------------------------------------
2023-05-05 12:15:50.063 DEBUG    setup_tests
PASSED                                                                                       [ 66%]
tests/param_deco/test_main.py::test_dummy_2 
------------------------------------------ live log setup ------------------------------------------
2023-05-05 12:15:50.064 DEBUG    setup_tests
FAILED                                                                                       [100%]

Information for reproducing
I push my code to my repo. Commit SHA cdb11e6560264702b7c6f64f14a199bd655a1e6b.

(.venv) [rkuznecov@impact-pc dummy-python-prj]$ python --version
Python 3.8.13
(.venv) [rkuznecov@impact-pc dummy-python-prj]$ pytest --version
pytest 7.3.1

All the things
I tried to use mark.parametrize for passing parameters, and it worked great. But i saw that pytest concat all parametres ids. I can not use this in my case.

[RonnyPfannschmidt]

*edit *

Also autouse=True tells pytest to always use a fixture, you need it off

---

It's unclear what you are asking for but the posted code for implementation is so incomprehensibly incorrect that it's not clear what the intent is

Pytest already reorder parameterized tests as to minimise setup /teardown of higher scopes,

However in those cases the parameter comes in as attribute of the fixture sub request

I believe what you want is already implemented in fixture scopes

[cidlik]

Thank you for answer.
I want to write fixture with passing parametres. This fixture must run once for one test finction. If test function has parameters when my fixture must be called before first parameter and finish after last parameter.

parametrized_fixture: start
tests/param_deco/test_main.py::test_dummy_1[val1] 
tests/param_deco/test_main.py::test_dummy_1[val2] 
tests/param_deco/test_main.py::test_dummy_1[val3] 
parametrized_fixture: end
...
parametrized_fixture: start
tests/param_deco/test_main.py::test_dummy_2[val4]
parametrized_fixture: end

[RonnyPfannschmidt]

Now I get the use case,

The basic gist is that this would need a function definition scope exposed

Currently that is not the case as a larger internal refactoring is needed

[cidlik]

Ok, thank you for answer!

[RonnyPfannschmidt]

A possible hack would be a pytest_generate_tests that adds a hack fixture parameterized with only the name