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|
from __future__ import annotations
from textwrap import dedent
from pytest import Pytester
_ignore_installed_warning = (
"ignore"
":Module already imported so cannot be rewritten; pytest_asyncio"
":pytest.PytestAssertRewriteWarning"
)
def test_event_loop_fixture_handles_unclosed_async_gen(
pytester: Pytester,
):
pytester.makeini("[pytest]\nasyncio_default_fixture_loop_scope = function")
pytester.makepyfile(
dedent(
"""\
import asyncio
import pytest
pytest_plugins = 'pytest_asyncio'
@pytest.mark.asyncio
async def test_something():
async def generator_fn():
yield
yield
gen = generator_fn()
await gen.__anext__()
"""
)
)
result = pytester.runpytest(
"--asyncio-mode=strict", "-W", "default", "-W", _ignore_installed_warning
)
result.assert_outcomes(passed=1, warnings=0)
def test_closing_event_loop_in_sync_fixture_teardown_raises_warning(
pytester: Pytester,
):
pytester.makeini("[pytest]\nasyncio_default_fixture_loop_scope = function")
pytester.makepyfile(
dedent(
"""\
import asyncio
import pytest
import pytest_asyncio
pytest_plugins = 'pytest_asyncio'
@pytest_asyncio.fixture
async def _event_loop():
return asyncio.get_running_loop()
@pytest.fixture
def close_event_loop(_event_loop):
yield
# fixture has its own cleanup code
_event_loop.close()
@pytest.mark.asyncio
async def test_something(close_event_loop):
await asyncio.sleep(0.01)
"""
)
)
result = pytester.runpytest_subprocess("--asyncio-mode=strict", "--assert=plain")
result.assert_outcomes(passed=1, warnings=1)
result.stdout.fnmatch_lines(
["*An exception occurred during teardown of an asyncio.Runner*"]
)
def test_event_loop_fixture_asyncgen_error(
pytester: Pytester,
):
pytester.makeini("[pytest]\nasyncio_default_fixture_loop_scope = function")
pytester.makepyfile(
dedent(
"""\
import asyncio
import pytest
pytest_plugins = 'pytest_asyncio'
@pytest.mark.asyncio
async def test_something():
# mock shutdown_asyncgen failure
loop = asyncio.get_running_loop()
async def fail():
raise RuntimeError("mock error cleaning up...")
loop.shutdown_asyncgens = fail
"""
)
)
result = pytester.runpytest(
"--asyncio-mode=strict", "-W", "default", "-W", _ignore_installed_warning
)
result.assert_outcomes(passed=1, warnings=1)
|
