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from __future__ import annotations
from textwrap import dedent
from pytest import Pytester
def test_event_loop_parametrization(pytester: Pytester):
pytester.makepyfile(
dedent(
"""\
import asyncio
import pytest
import pytest_asyncio
TESTS_COUNT = 0
def teardown_module():
# parametrized 2 * 2 times: 2 for 'event_loop' and 2 for 'fix'
assert TESTS_COUNT == 4
@pytest.fixture(scope="module", params=[1, 2])
def event_loop(request):
request.param
loop = asyncio.new_event_loop()
yield loop
loop.close()
@pytest_asyncio.fixture(params=["a", "b"])
async def fix(request):
await asyncio.sleep(0)
return request.param
@pytest.mark.asyncio
async def test_parametrized_loop(fix):
await asyncio.sleep(0)
global TESTS_COUNT
TESTS_COUNT += 1
"""
)
)
result = pytester.runpytest_subprocess("--asyncio-mode=strict")
result.assert_outcomes(passed=4)
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