test_subscription_transport.py 文件源码

def test_should_call_unsubscribe_when_client_closes_cxn(server_with_mocks):
    node_script = '''
        module.paths.push('{0}')
        WebSocket = require('ws')
        const SubscriptionClient =
        require('subscriptions-transport-ws').SubscriptionClient
        const client = new SubscriptionClient('ws://localhost:{1}/socket')
        client.subscribe({{
            query: `subscription useInfo($id: String) {{
            user(id: $id) {{
              id
              name
            }}
          }}`,
            operationName: 'useInfo',
            variables: {{
              id: 3,
            }},
          }}, function (error, result) {{
            // nothing
          }}
        )
        setTimeout(() => {{
            client.client.close()
        }}, 500)
    '''.format(
        os.path.join(os.path.dirname(__file__), 'node_modules'), TEST_PORT)
    try:
        subprocess.check_output(
            ['node', '-e', node_script], stderr=subprocess.STDOUT, timeout=1)
    except:
        while True:
            mock = server_with_mocks.get_nowait()
            if mock.name == 'on_unsubscribe':
                mock.assert_called_once()
                break