test_poll.py 文件源码

def test_poll3(self):
        # test int overflow
        pollster = select.poll()
        pollster.register(1)

        self.assertRaises(OverflowError, pollster.poll, 1 << 64)

        x = 2 + 3
        if x != 5:
            self.fail('Overflow must have occurred')

        # Issues #15989, #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)