Method check

src/trio/_tests/test_highlevel_open_tcp_stream.py:332–341

(self, succeeded: SocketType | None)

        raise NotImplementedError

    def check(self, succeeded: SocketType | None) -> None:
        # sockets only go into self.sockets when connect is called; make sure
        # all the sockets that were created did in fact go in there.
        assert self.socket_count == len(self.sockets)

        for ip, socket_ in self.sockets.items():
            assert ip in self.ip_dict
            if socket_ is not succeeded:
                assert socket_.closed
            assert socket_.port == self.port


async def run_scenario(