File: event_loop_policy_example.py

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python-pytest-asyncio 1.2.0-1
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import asyncio
import warnings

with warnings.catch_warnings():
    warnings.simplefilter("ignore", DeprecationWarning)
    from asyncio import DefaultEventLoopPolicy

import pytest


class CustomEventLoopPolicy(DefaultEventLoopPolicy):
    pass


@pytest.fixture(scope="module")
def event_loop_policy(request):
    return CustomEventLoopPolicy()


@pytest.mark.asyncio(loop_scope="module")
@pytest.mark.filterwarnings("ignore::DeprecationWarning")
async def test_uses_custom_event_loop_policy():
    assert isinstance(asyncio.get_event_loop_policy(), CustomEventLoopPolicy)