bpo-35601: Alleviate race condition when waiting for SIGALRM in test_asyncio (GH-11337)
There is a race condition regarding signal delivery in test_signal_handling_args for
test_asyncio.test_events.KqueueEventLoopTests. The signal can be received at any moment outside the time window provided in the test. The fix is to wait for the signal to be received instead with a bigger timeout.
(cherry picked from commit 5471420faa
)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
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@ -574,6 +574,7 @@ class EventLoopTestsMixin:
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self.loop.add_signal_handler(signal.SIGALRM, my_handler)
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signal.setitimer(signal.ITIMER_REAL, 0.01, 0) # Send SIGALRM once.
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self.loop.call_later(60, self.loop.stop)
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self.loop.run_forever()
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self.assertEqual(caught, 1)
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@ -586,11 +587,12 @@ class EventLoopTestsMixin:
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nonlocal caught
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caught += 1
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self.assertEqual(args, some_args)
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self.loop.stop()
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self.loop.add_signal_handler(signal.SIGALRM, my_handler, *some_args)
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signal.setitimer(signal.ITIMER_REAL, 0.1, 0) # Send SIGALRM once.
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self.loop.call_later(0.5, self.loop.stop)
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self.loop.call_later(60, self.loop.stop)
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self.loop.run_forever()
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self.assertEqual(caught, 1)
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