"""Test if pytestmark works when defined on a class."""
import asyncio
import pytest


class TestPyTestMark:
    pytestmark = pytest.mark.asyncio

    async def test_is_asyncio(self, event_loop, sample_fixture):
        assert asyncio.get_event_loop()
        counter = 1

        async def inc():
            nonlocal counter
            counter += 1
            await asyncio.sleep(0)
        await asyncio.ensure_future(inc())
        assert counter == 2


@pytest.fixture
def sample_fixture():
    return None