STINNER Victor <vstin...@python.org> added the comment:
test_run_coroutine_threadsafe_with_timeout() has a race condition. It relies on
"await asyncio.sleep(0.05)" synchronization primitive. That's not reliable.
async def add(self, a, b, fail=False, cancel=False):
"""Wait 0.05 second and return a + b."""
await asyncio.sleep(0.05)
if fail:
raise RuntimeError("Fail!")
if cancel:
asyncio.current_task(self.loop).cancel()
await asyncio.sleep(0)
return a + b
----------
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue38564>
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