I'm not going to address the mocking, as there's subtle details there (e.g.
you mocked group_name as a non-property, I think), but look at the main
issue.
Can you make your code print out what _is_ in `self.scope`? url_route
should definitely be in there, but I am curious what it looks like if it is
not.
Andrew
On Wed, Feb 7, 2018 at 12:16 PM, Azamat Galimzhanov <aza...@galimzhanov.com>
wrote:
> Hello,
>
> I'm setting up an auctions application using channels and websockets. When
> I'm running the server the code works just fine, troubles arise when I'm
> trying to test my app.
>
> asgiref==2.1.3
> daphne==2.0.2
> Django==2.0.2
> channels==2.0.1
> channels-redis==2.0.2
> pytest==3.4.0
> pytest-asyncio==0.8.0
>
> a bunch of other stuff, but I think that's it for relevant libraries.
>
> Here is my consumer:
>
> class AuctionConsumer(WebsocketConsumer):
> @property
> @lru_cache(maxsize=None)
> def group_name(self):
> auction_id = self.scope['url_route']['kwargs']['auction_id']
> return 'auction_{}'.format(auction_id)
>
> def connect(self):
> AsyncToSync(self.channel_layer.group_add)(self.group_name,
> self.channel_name)
> self.accept()
>
>
> Here is my routing:
>
> application = ProtocolTypeRouter({
> 'websocket': URLRouter([
> path("auctions/<auction_id>/", AuctionConsumer),
> ]),
> })
>
>
> And here is my test:
>
>
> @pytest.mark.asyncio
> async def test_auction_consumer(mocker):
> communicator = WebsocketCommunicator(AuctionConsumer, 'auctions/1/')
> connected, subprotocol = await communicator.connect()
> assert connected
> # Test sending text
> await communicator.send_to(text_data='1')
> response = await communicator.receive_from()
> assert response == '1'
> # Close
> await communicator.disconnect()
>
>
>
> I'm running into the following problem;
>
> @property
> @lru_cache(maxsize=None)
> def group_name(self):
> > auction_id = self.scope['url_route']['kwargs']['auction_id']
> E KeyError: 'url_route'
>
> I tried mocking at the top of my test:
>
> group_name = mocker.patch('auctions.consumers.AuctionConsumer.group_name')
> group_name.return_value = 'auction'
>
>
> But then I run into:
>
> def valid_group_name(self, name):
> if self.match_type_and_length(name):
> if bool(self.group_name_regex.match(name)):
> return True
> raise TypeError(
> "Group name must be a valid unicode string containing only
> ASCII " +
> > "alphanumerics, hyphens, or periods."
> )
> E TypeError: Group name must be a valid unicode string containing
> only ASCII alphanumerics, hyphens, or periods.
>
>
> I also tried:
>
> scope = mocker.patch('auctions.consumers.AuctionConsumer.scope')
> scope.return_value = {'url_route': {}}
>
>
> But that got me:
>
> if not self.create and original is DEFAULT:
> raise AttributeError(
> > "%s does not have the attribute %r" % (target, name)
> )
> E AttributeError: <class 'auctions.consumers.AuctionConsumer'>
> does not have the attribute 'scope'
>
>
> At this point I'm out of ideas. Anything I should try?
>
> Thanks in advance.
>
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