我有一个类似的WebsocketHandler:
class MyHandler(WebSocketHandler):
def open(self, *args, **kwargs):
self.application.logger.info('WebSocket connection opened from %s', self.request.remote_ip)
def on_close(self):
self.application.logger.info('WebSocket connection closed')
def on_message(self, message):
self.write_message(message)
我有一些使用pytest的测试,比如:
@pytest.fixture
def app(request):
request.cls.app_fixture = create_app(TornadoConfig)
@pytest.mark.usefixtures("app")
class TestWebSocket(testing.AsyncHTTPTestCase):
def get_app(self):
return self.app_fixture
def setUp(self):
super(TestWebSocket, self).setUp()
server = httpserver.HTTPServer(self.app_fixture)
self.socket, self.port = testing.bind_unused_port()
server.add_socket(self.socket)
def _mk_client(self):
client = websocket_connect('ws://localhost:{}/ws/'.format(self.port))
TestWebSocket.clients.append(client)
return client
@testing.gen_test
def test_auto_complete(self):
client = yield self._mk_client()
client.write_message('test')
response = yield client.read_message()
assert response == 'test'
client.close()
虽然我跟踪了它,我确信close
方法被调用了,但client.close()
对MyHandler
没有任何影响,on_close
从未被调用!
client.close()
将导致调用MyHandler.on_close
,但它还没有,并且当测试方法返回时,它永远不会有机会。如果要确保调用on_close
,则必须等待调用on_close
,而不是在client.close()
返回后立即返回。例如,请参阅Tornado对websocket功能的测试:https://github.com/tornadoweb/tornado/blob/43e23f977715396ce243c6cd7e3387abf2a2e4ee/tornado/test/websocket_test.py#L44
我使用ThreadPoolExecutor
来解决我的问题所以我创建了一个thread_pool
:
thread_pool = ThreadPoolExecutor(1)
并编写了另一种关闭客户端连接的方法:
def close_ws(self, client):
client.close()
time.sleep(1)
self.close_future.set_result('done')
在我的测试方法结束时,我做了:
self.thread_pool.submit(self.close_ws, client)
yield self.close_future