test_subscription_transport.py 文件源码

def test_rejects_unparsable_message(server):

    node_script = '''
        module.paths.push('{0}');
        WebSocket = require('ws');
        const GRAPHQL_SUBSCRIPTIONS = 'graphql-subscriptions';
        const client = new WebSocket('ws://localhost:{1}/socket',
        GRAPHQL_SUBSCRIPTIONS);
        client.onmessage = (message) => {{
            let msg = JSON.parse(message.data)
            console.log(JSON.stringify({{[msg.type]: msg}}))
            client.close();
        }};
        client.onopen = () => {{
            client.send('HI');
        }}
    '''.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)
    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['subscription_fail']
    assert len(ret_values['subscription_fail']['payload']['errors']) > 0