def test_wait_for_handle(self):
event = _overlapped.CreateEvent(None, True, False, None)
self.addCleanup(_winapi.CloseHandle, event)
# Wait for unset event with 0.2s timeout;
# result should be False at timeout
f = self.loop._proactor.wait_for_handle(event, 0.2)
start = self.loop.time()
self.loop.run_until_complete(f)
elapsed = self.loop.time() - start
self.assertFalse(f.result())
self.assertTrue(0.18 < elapsed < 0.9, elapsed)
_overlapped.SetEvent(event)
# Wait for for set event;
# result should be True immediately
f = self.loop._proactor.wait_for_handle(event, 10)
start = self.loop.time()
self.loop.run_until_complete(f)
elapsed = self.loop.time() - start
self.assertTrue(f.result())
self.assertTrue(0 <= elapsed < 0.1, elapsed)
_overlapped.ResetEvent(event)
# Wait for unset event with a cancelled future;
# CancelledError should be raised immediately
f = self.loop._proactor.wait_for_handle(event, 10)
f.cancel()
start = self.loop.time()
with self.assertRaises(asyncio.CancelledError):
self.loop.run_until_complete(f)
elapsed = self.loop.time() - start
self.assertTrue(0 <= elapsed < 0.1, elapsed)
def test_wait_for_handle(self):
event = _overlapped.CreateEvent(None, True, False, None)
self.addCleanup(_winapi.CloseHandle, event)
# Wait for unset event with 0.5s timeout;
# result should be False at timeout
fut = self.loop._proactor.wait_for_handle(event, 0.5)
start = self.loop.time()
done = self.loop.run_until_complete(fut)
elapsed = self.loop.time() - start
self.assertEqual(done, False)
self.assertFalse(fut.result())
# bpo-31008: Tolerate only 450 ms (at least 500 ms expected),
# because of bad clock resolution on Windows
self.assertTrue(0.45 <= elapsed <= 0.9, elapsed)
_overlapped.SetEvent(event)
# Wait for set event;
# result should be True immediately
fut = self.loop._proactor.wait_for_handle(event, 10)
start = self.loop.time()
done = self.loop.run_until_complete(fut)
elapsed = self.loop.time() - start
self.assertEqual(done, True)
self.assertTrue(fut.result())
self.assertTrue(0 <= elapsed < 0.3, elapsed)
# asyncio issue #195: cancelling a done _WaitHandleFuture
# must not crash
fut.cancel()
def test_wait_for_handle(self):
event = _overlapped.CreateEvent(None, True, False, None)
self.addCleanup(_winapi.CloseHandle, event)
# Wait for unset event with 0.5s timeout;
# result should be False at timeout
fut = self.loop._proactor.wait_for_handle(event, 0.5)
start = self.loop.time()
done = self.loop.run_until_complete(fut)
elapsed = self.loop.time() - start
self.assertEqual(done, False)
self.assertFalse(fut.result())
self.assertTrue(0.48 < elapsed < 0.9, elapsed)
_overlapped.SetEvent(event)
# Wait for set event;
# result should be True immediately
fut = self.loop._proactor.wait_for_handle(event, 10)
start = self.loop.time()
done = self.loop.run_until_complete(fut)
elapsed = self.loop.time() - start
self.assertEqual(done, True)
self.assertTrue(fut.result())
self.assertTrue(0 <= elapsed < 0.3, elapsed)
# asyncio issue #195: cancelling a done _WaitHandleFuture
# must not crash
fut.cancel()
def test_wait_for_handle(self):
event = _overlapped.CreateEvent(None, True, False, None)
self.addCleanup(_winapi.CloseHandle, event)
fut = self.loop._proactor.wait_for_handle(event, 0.5)
start = self.loop.time()
done = self.loop.run_until_complete(fut)
elapsed = self.loop.time() - start
self.assertEqual(done, False)
self.assertFalse(fut.result())
self.assertTrue(0.48 < elapsed < 0.9, elapsed)
_overlapped.SetEvent(event)
fut = self.loop._proactor.wait_for_handle(event, 10)
start = self.loop.time()
done = self.loop.run_until_complete(fut)
elapsed = self.loop.time() - start
self.assertEqual(done, True)
self.assertTrue(fut.result())
self.assertTrue(0 <= elapsed < 0.3, elapsed)
fut.cancel()