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gh-132106: Ensure that running logging.handlers.QueueListener cannot be started again (GH-132444)

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Prevents a thread leak
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
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Charles Machalow 2025-04-13 00:53:13 -07:00 • committed by GitHub
parent 64b066ad29
commit 5863cd70b8
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11
Lib/test/test_logging.py
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@ -4356,6 +4356,17 @@ class QueueHandlerTest(BaseTest):
listener.stop()
self.assertIsNone(listener._thread)
def test_queue_listener_multi_start(self):
handler = TestHandler(support.Matcher())
with logging.handlers.QueueListener(self.queue, handler) as listener:
self.assertRaises(RuntimeError, listener.start)
with listener:
self.assertRaises(RuntimeError, listener.start)
listener.start()
listener.stop()
def test_queue_listener_with_StreamHandler(self):
# Test that traceback and stack-info only appends once (bpo-34334, bpo-46755).
listener = logging.handlers.QueueListener(self.queue, self.root_hdlr)