class TestActionKeywordArgs(TestCase):
    """
    Ensure keyword arguments passed in the `@action` decorator
    are properly handled.  Refs #940.
    """

    def setUp(self):
        class TestViewSet(viewsets.ModelViewSet):
            permission_classes = []

            @detail_route(methods=['post'], permission_classes=[permissions.AllowAny])
            def custom(self, request, *args, **kwargs):
                return Response({
                    'permission_classes': self.permission_classes
                })

        self.router = SimpleRouter()
        self.router.register(r'test', TestViewSet, base_name='test')
        self.view = self.router.urls[-1].callback

    def test_action_kwargs(self):
        request = factory.post('/test/0/custom/')
        response = self.view(request)
        self.assertEqual(
            response.data,
            {'permission_classes': [permissions.AllowAny]}
        )
class TestTrailingSlashRemoved(TestCase):
    def setUp(self):
        class NoteViewSet(viewsets.ModelViewSet):
            queryset = RouterTestModel.objects.all()

        self.router = SimpleRouter(trailing_slash=False)
        self.router.register(r'notes', NoteViewSet)
        self.urls = self.router.urls

    def test_urls_can_have_trailing_slash_removed(self):
        expected = ['^notes$', '^notes/(?P<pk>[^/.]+)$']
        for idx in range(len(expected)):
            self.assertEqual(expected[idx], self.urls[idx].regex.pattern)
class TestLookupValueRegex(TestCase):
    """
    Ensure the router honors lookup_value_regex when applied
    to the viewset.
    """
    def setUp(self):
        class NoteViewSet(viewsets.ModelViewSet):
            queryset = RouterTestModel.objects.all()
            lookup_field = 'uuid'
            lookup_value_regex = '[0-9a-f]{32}'

        self.router = SimpleRouter()
        self.router.register(r'notes', NoteViewSet)
        self.urls = self.router.urls

    def test_urls_limited_by_lookup_value_regex(self):
        expected = ['^notes/$', '^notes/(?P<uuid>[0-9a-f]{32})/$']
        for idx in range(len(expected)):
            self.assertEqual(expected[idx], self.urls[idx].regex.pattern)
class TestActionAppliedToExistingRoute(TestCase):
    """
    Ensure `@detail_route` decorator raises an except when applied
    to an existing route
    """

    def test_exception_raised_when_action_applied_to_existing_route(self):
        class TestViewSet(viewsets.ModelViewSet):

            @detail_route(methods=['post'])
            def retrieve(self, request, *args, **kwargs):
                return Response({
                    'hello': 'world'
                })

        self.router = SimpleRouter()
        self.router.register(r'test', TestViewSet, base_name='test')

        with self.assertRaises(ImproperlyConfigured):
            self.router.urls

class KWargedNoteViewSet(viewsets.ModelViewSet):
    queryset = RouterTestModel.objects.all()
    serializer_class = NoteSerializer
    lookup_field = 'text__contains'
    lookup_url_kwarg = 'text'


class MockViewSet(viewsets.ModelViewSet):
    queryset = None
    serializer_class = None


notes_router = SimpleRouter()
notes_router.register(r'notes', NoteViewSet)

kwarged_notes_router = SimpleRouter()
kwarged_notes_router.register(r'notes', KWargedNoteViewSet)

namespaced_router = DefaultRouter()
namespaced_router.register(r'example', MockViewSet, base_name='example')

urlpatterns = [
    url(r'^non-namespaced/', include(namespaced_router.urls)),
    url(r'^namespaced/', include(namespaced_router.urls, namespace='example')),
    url(r'^example/', include(notes_router.urls)),
    url(r'^example2/', include(kwarged_notes_router.urls)),
]