test_devpoll.py 文件源码

def test_events_mask_overflow(self):
        pollster = select.devpoll()
        w, r = os.pipe()
        pollster.register(w)
        # Issue #17919
        self.assertRaises(OverflowError, pollster.register, 0, -1)
        self.assertRaises(OverflowError, pollster.register, 0, 1 << 64)
        self.assertRaises(OverflowError, pollster.modify, 1, -1)
        self.assertRaises(OverflowError, pollster.modify, 1, 1 << 64)