Method test_mixed_fd_fileobj

python/python3/tornado/test/ioloop_test.py:309–321

(self)

        server_sock.close()

    def test_mixed_fd_fileobj(self):
        server_sock, port = bind_unused_port()

        def f(fd, events):
            pass

        self.io_loop.add_handler(server_sock, f, IOLoop.READ)
        with self.assertRaises(Exception):
            # The exact error is unspecified - some implementations use
            # IOError, others use ValueError.
            self.io_loop.add_handler(server_sock.fileno(), f, IOLoop.READ)
        self.io_loop.remove_handler(server_sock.fileno())
        server_sock.close()

    def test_reentrant(self):
        """Calling start() twice should raise an error, not deadlock."""