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[3.12] gh-111644: Fix asyncio test_unhandled_exceptions() (GH-111713) (#111718)

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gh-111644: Fix asyncio test_unhandled_exceptions() (GH-111713)

Fix test_unhandled_exceptions() of test_asyncio.test_streams: break
explicitly a reference cycle.

Fix also StreamTests.tearDown(): the loop must not be closed
explicitly, but using set_event_loop() which takes care of shutting
down the executor with executor.shutdown(wait=True).
BaseEventLoop.close() calls executor.shutdown(wait=False).
(cherry picked from commit ac01e2243a)

Co-authored-by: Victor Stinner <vstinner@python.org>
This commit is contained in:
Miss Islington (bot) 2023-11-04 07:29:20 +01:00 • committed by GitHub
parent 02f8f781da
commit d15fac2a67
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1 changed files with 3 additions and 2 deletions
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5
Lib/test/test_asyncio/test_streams.py
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@ -37,8 +37,7 @@ class StreamTests(test_utils.TestCase):
# just in case if we have transport close callbacks
test_utils.run_briefly(self.loop)
self.loop.close()
gc.collect()
# set_event_loop() takes care of closing self.loop in a safe way
super().tearDown()
def _basetest_open_connection(self, open_connection_fut):
@ -1102,6 +1101,8 @@ os.close(fd)
self.assertEqual(messages[0]['message'],
'Unhandled exception in client_connected_cb')
# Break explicitly reference cycle
messages = None
if __name__ == '__main__':