get_received returns empty on second test case

[blackfly19]

Your question
I was unittesting my application. I wrote three tests. When I run the tests the first one works fine but in the second and third the get_received function returns an empty list.
Here is my code:

class MainTest(unittest.TestCase):

    def setUp(self):
        self.app = create_app(DevelopmentConfig())

    def test_connect(self):
        client = socketio.test_client(self.app)
        assert not client.is_connected()
        client = socketio.test_client(self.app, query_string='?api_key=random')
        assert client.is_connected()
        print(client.get_received())
        client.disconnect()

    def test_mapHashID(self):
        client = socketio.test_client(self.app, query_string='?api_key=random')
        assert client.is_connected()
        print(client.get_received())
        hashID = uuid.uuid1()
        client.emit('mapHashID', hashID.hex)
        client.disconnect()

    def test_onlineUsers(self):
        client = socketio.test_client(self.app, query_string='?api_key=random')
        assert client.is_connected()
        print(client.get_received())
        client.emit('onlineUsers')
        print(client.get_received())
        client.disconnect()


if __name__ == '__main__':
    unittest.main()

Logs
These are the logs.

Connected:  h8AdDg_5SZ1y0pDdAAAB
[{'name': 'authorize', 'args': [1], 'namespace': '/'}]
Disconnected:  h8AdDg_5SZ1y0pDdAAAB
.[]
.[]
[]
.
----------------------------------------------------------------------
Ran 3 tests in 0.092s

OK

[miguelgrinberg]

I can't really tell you. My guess is that it is something caused by your application.

[blackfly19]

Thank you for your prompt response. I solved the problem by removing the setUp() function and adding it directly inside the class. But I didn't understand why it wasn't working before and now it is.

[miguelgrinberg]

Probably because some state saved somewhere in your application is not reset when you create a new application.