Method test_register_bad_fd

Lib/test/test_selectors.py:578–588

(self)

    SELECTOR = getattr(selectors, 'KqueueSelector', None)

    def test_register_bad_fd(self):
        # a file descriptor that's been closed should raise an OSError
        # with EBADF
        s = self.SELECTOR()
        bad_f = os_helper.make_bad_fd()
        with self.assertRaises(OSError) as cm:
            s.register(bad_f, selectors.EVENT_READ)
        self.assertEqual(cm.exception.errno, errno.EBADF)
        # the SelectorKey has been removed
        with self.assertRaises(KeyError):
            s.get_key(bad_f)

    def test_empty_select_timeout(self):
        # Issues #23009, #29255: Make sure timeout is applied when no fds