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from __future__ import annotations
from textwrap import dedent
from pytest import Pytester
def test_emit_warning_when_event_loop_fixture_is_redefined(pytester: Pytester):
pytester.makepyfile(
dedent(
"""\
import asyncio
import pytest
@pytest.fixture
def event_loop():
loop = asyncio.new_event_loop()
yield loop
loop.close()
@pytest.mark.asyncio
async def test_emits_warning():
pass
"""
)
)
result = pytester.runpytest_subprocess("--asyncio-mode=strict", "-W default")
result.assert_outcomes(passed=1, warnings=1)
result.stdout.fnmatch_lines(
["*event_loop fixture provided by pytest-asyncio has been redefined*"]
)
def test_emit_warning_when_event_loop_fixture_is_redefined_explicit_request(
pytester: Pytester,
):
pytester.makepyfile(
dedent(
"""\
import asyncio
import pytest
@pytest.fixture
def event_loop():
loop = asyncio.new_event_loop()
yield loop
loop.close()
@pytest.mark.asyncio
async def test_emits_warning_when_requested_explicitly(event_loop):
pass
"""
)
)
result = pytester.runpytest_subprocess("--asyncio-mode=strict", "-W default")
result.assert_outcomes(passed=1, warnings=2)
result.stdout.fnmatch_lines(
["*event_loop fixture provided by pytest-asyncio has been redefined*"]
)
result.stdout.fnmatch_lines(
['*is asynchronous and explicitly requests the "event_loop" fixture*']
)
def test_does_not_emit_warning_when_no_test_uses_the_event_loop_fixture(
pytester: Pytester,
):
pytester.makepyfile(
dedent(
"""\
import asyncio
import pytest
@pytest.fixture
def event_loop():
loop = asyncio.new_event_loop()
yield loop
loop.close()
def test_emits_no_warning():
pass
"""
)
)
result = pytester.runpytest_subprocess("--asyncio-mode=strict")
result.assert_outcomes(passed=1, warnings=0)
def test_emit_warning_when_redefined_event_loop_is_used_by_fixture(pytester: Pytester):
pytester.makepyfile(
dedent(
"""\
import asyncio
import pytest
import pytest_asyncio
@pytest.fixture
def event_loop():
loop = asyncio.new_event_loop()
yield loop
loop.close()
@pytest_asyncio.fixture
async def uses_event_loop():
pass
def test_emits_warning(uses_event_loop):
pass
"""
)
)
result = pytester.runpytest_subprocess("--asyncio-mode=strict", "-W default")
result.assert_outcomes(passed=1, warnings=1)
|
