Method test_bad_fd

Lib/test/test_fcntl.py:281–289

(self)

    @unittest.skipUnless(hasattr(fcntl, 'F_DUPFD'), 'need fcntl.F_DUPFD')
    def test_bad_fd(self):
        # gh-134744: Test error handling
        fd = make_bad_fd()
        with self.assertRaises(OSError):
            fcntl.fcntl(fd, fcntl.F_DUPFD, 0)
        with self.assertRaises(OSError):
            fcntl.fcntl(fd, fcntl.F_DUPFD, b'\0' * 10)
        with self.assertRaises(OSError):
            fcntl.fcntl(fd, fcntl.F_DUPFD, b'\0' * 2048)


if __name__ == '__main__':