test_subscription_transport.py 文件源码

def test_send_subscription_fail_message_to_client_with_invalid_query(server):

    node_script = '''
        module.paths.push('{0}')
        WebSocket = require('ws')
        const SubscriptionClient =
        require('subscriptions-transport-ws').SubscriptionClient
        const client = new SubscriptionClient('ws://localhost:{1}/socket')
        setTimeout(function () {{
            client.subscribe({{
                query: `subscription useInfo($id: String) {{
                  user(id: $id) {{
                    id
                    birthday
                  }}
                }}`,
                operationName: 'useInfo',
                variables: {{
                  id: 3,
                }},

                }}, function (error, result) {{
                }}
            );
        }}, 100);
            client.client.onmessage = (message) => {{
                let msg = JSON.parse(message.data)
                console.log(JSON.stringify({{[msg.type]: msg}}))
            }};
    '''.format(
        os.path.join(os.path.dirname(__file__), 'node_modules'), TEST_PORT)

    p = subprocess.Popen(
        ['node', '-e', node_script],
        stdin=subprocess.PIPE,
        stdout=subprocess.PIPE,
        stderr=subprocess.STDOUT)
    time.sleep(.2)
    q = queue.Queue()
    t = threading.Thread(target=enqueue_output, args=(p.stdout, q))
    t.daemon = True
    t.start()
    time.sleep(.2)
    ret_values = {}
    while True:
        try:
            _line = q.get_nowait()
            if isinstance(_line, bytes):
                line = _line.decode()
            line = json.loads(line)
            ret_values[list(line.keys())[0]] = line[list(line.keys())[0]]
        except ValueError:
            pass
        except queue.Empty:
            break
    assert ret_values['type'] == SUBSCRIPTION_FAIL
    assert len(ret_values['payload']['errors']) > 0


# TODO: troubleshoot this a bit...passes, but receives extra messages which I'm
# filtering out w/ the "AttributeError" exception clause