test_cleanup_app.py

import pytest


class App:
    def create(self):
        pass
    
    def cleanup(self):
        pass
    

@pytest.fixture
def app():
    app_instance = App()
    yield app_instance
    app_instance.cleanup()


def test_app(app):
    app.create()

test_finalizer.py

def create_app():
    return 1


def delete_app(app_id):
    print("Deleted " + str(app_id))


def test_app(request):
    app_id = create_app()
    request.addfinalizer(lambda: delete_app(app_id))

test_with_attrs.py

import pytest


def create_app():
    return 1


def delete_app(app_id):
    print("Deleted " + str(app_id))


@pytest.fixture(autouse=True)
def app_cleanup(request):
    yield
    if hasattr(request.node, "app_id"):
        delete_app(request.node.app_id)


def test_app(request):
    app_id = create_app()
    request.node.app_id = app_id