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')

        pollster = select.poll()
        # Issue 15989
        self.assertRaises(OverflowError, pollster.register, 0,
                          _testcapi.SHRT_MAX + 1)
        self.assertRaises(OverflowError, pollster.register, 0,
                          _testcapi.USHRT_MAX + 1)
        self.assertRaises(OverflowError, pollster.poll, _testcapi.INT_MAX + 1)
        self.assertRaises(OverflowError, pollster.poll, _testcapi.UINT_MAX + 1)