Class TestServer

tornado/test/tcpserver_test.py:22–27

        # handle_stream may be a coroutine and any exception in its
        # Future will be logged.
        class TestServer(TCPServer):
            @gen.coroutine
            def handle_stream(self, stream, address):
                yield stream.read_bytes(len(b"hello"))
                stream.close()
                1 / 0

        server = client = None
        try: