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bpo-44645: Check for interrupts on any potentially backwards edge. (GH-27167)

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Mark Shannon 2021-07-16 10:59:31 +01:00 • committed by GitHub
parent d9f923280f
commit 000e70ad52
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2 changed files with 31 additions and 1 deletions
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25
Lib/test/test_threading.py
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@ -1604,6 +1604,31 @@ class InterruptMainTests(unittest.TestCase):
self.assertRaises(ValueError, _thread.interrupt_main, signal.NSIG)
self.assertRaises(ValueError, _thread.interrupt_main, 1000000)
@threading_helper.reap_threads
def test_can_interrupt_tight_loops(self):
cont = True
started = False
iterations = 100_000_000
def worker():
nonlocal iterations
nonlocal started
started = True
while cont:
if iterations:
iterations -= 1
else:
return
pass
t = threading.Thread(target=worker)
t.start()
while not started:
pass
cont = False
t.join()
self.assertNotEqual(iterations, 0)
class AtexitTests(unittest.TestCase):