from collections.abc import Generator

import pytest

from fluksio.sdk import FLOWS


@pytest.fixture(scope="session", autouse=True)
def db() -> Generator[None, None, None]:
    """Declaring a flow touches no database."""
    yield


@pytest.fixture(autouse=True)
def registry() -> Generator[None, None, None]:
    """The registry is module-level, so one test's flows are not another's."""
    FLOWS.clear()
    yield
    FLOWS.clear()