René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`test_contextlib_async` produces several `RuntimeWarning`s","articleBody":"# Bug report\n\n```\n» ./python.exe -m test test_contextlib_async\nUsing random seed 908291980\n0:00:00 load avg: 4.08 Run 1 test sequentially\n0:00:00 load avg: 4.08 [1/1] test_contextlib_async\n/Users/sobolev/Desktop/cpython/Lib/contextlib.py:701: RuntimeWarning: coroutine method 'aclose' of 'AsyncContextManagerTestCase.test_contextmanager_trap_second_yield.\u003clocals\u003e.whoo' was never awaited\n  async def __aenter__(self):\nRuntimeWarning: Enable tracemalloc to get the object allocation traceback\n/Users/sobolev/Desktop/cpython/Lib/contextlib.py:701: RuntimeWarning: coroutine method 'aclose' of 'AsyncContextManagerTestCase.test_contextmanager_trap_yield_after_throw.\u003clocals\u003e.whoo' was never awaited\n  async def __aenter__(self):\nRuntimeWarning: Enable tracemalloc to get the object allocation traceback\n/Users/sobolev/Desktop/cpython/Lib/contextlib.py:701: RuntimeWarning: coroutine method 'aclose' of 'TestAbstractAsyncContextManager.test_async_gen_propagates_generator_exit.\u003clocals\u003e.gen' was never awaited\n  async def __aenter__(self):\nRuntimeWarning: Enable tracemalloc to get the object allocation traceback\n\n== Tests result: SUCCESS ==\n\n1 test OK.\n\nTotal duration: 121 ms\nTotal tests: run=58\nTotal test files: run=1/1\nResult: SUCCESS\n```\n\nThis can be fixed by moving away from legacy `@_async_test` and by using stabel `IsolatedAsyncioTestCase`.\n\nhttps://github.com/python/cpython/blob/6592976061a6580fee2ade3564f6497eb685ab67/Lib/test/test_contextlib_async.py#L14-L20\n\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-110379\n* gh-110499\n* gh-110500\n* gh-110588\n* gh-110589\n* gh-110610\n* gh-110611\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/sobolevn","@type":"Person","name":"sobolevn"},"datePublished":"2023-10-05T07:59:56.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/110378/cpython/issues/110378"}