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from __future__ import annotations
import asyncio
import functools
import pytest
import pytest_asyncio
@pytest.mark.asyncio(loop_scope="module")
async def test_module_with_event_loop_finalizer(port_with_event_loop_finalizer):
await asyncio.sleep(0.01)
assert port_with_event_loop_finalizer
@pytest.mark.asyncio(loop_scope="module")
async def test_module_with_get_event_loop_finalizer(port_with_get_event_loop_finalizer):
await asyncio.sleep(0.01)
assert port_with_get_event_loop_finalizer
@pytest.fixture(scope="module")
def event_loop():
"""Change event_loop fixture to module level."""
policy = asyncio.get_event_loop_policy()
loop = policy.new_event_loop()
yield loop
loop.close()
@pytest_asyncio.fixture(loop_scope="module", scope="module")
async def port_with_event_loop_finalizer(request):
def port_finalizer(finalizer):
async def port_afinalizer():
# await task using loop provided by event_loop fixture
# RuntimeError is raised if task is created on a different loop
await finalizer
asyncio.run(port_afinalizer())
worker = asyncio.ensure_future(asyncio.sleep(0.2))
request.addfinalizer(functools.partial(port_finalizer, worker))
return True
@pytest_asyncio.fixture(loop_scope="module", scope="module")
async def port_with_get_event_loop_finalizer(request):
def port_finalizer(finalizer):
async def port_afinalizer():
# await task using current loop retrieved from the event loop policy
# RuntimeError is raised if task is created on a different loop.
# This can happen when pytest_fixture_setup
# does not set up the loop correctly,
# for example when policy.set_event_loop() is called with a wrong argument
await finalizer
current_loop = asyncio.get_event_loop_policy().get_event_loop()
current_loop.run_until_complete(port_afinalizer())
worker = asyncio.ensure_future(asyncio.sleep(0.2))
request.addfinalizer(functools.partial(port_finalizer, worker))
return True
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