Add test integrated with middleware

tests/test_middleware.py

+
+from django.conf.urls import patterns, url
+from django.contrib.auth.models import User
+from rest_framework.authentication import TokenAuthentication
+from rest_framework.authtoken.models import Token
+from rest_framework.test import APITestCase
+from rest_framework.views import APIView
+
+
+urlpatterns = patterns(
+    '',
+    url(r'^$', APIView.as_view(authentication_classes=(TokenAuthentication,))),
+)
+
+
+class MyMiddleware(object):
+
+    def process_response(self, request, response):
+        assert hasattr(request, 'user'), '`user` is not set on request'
+        assert request.user.is_authenticated(), '`user` is not authenticated'
+        return response
+
+
+class TestMiddleware(APITestCase):
+
+    urls = 'tests.test_middleware'
+
+    def test_middleware_can_access_user_when_processing_response(self):
+        user = User.objects.create_user('john', 'john@example.com', 'password')
+        key = 'abcd1234'
+        Token.objects.create(key=key, user=user)
+
+        with self.settings(
+            MIDDLEWARE_CLASSES=('tests.test_middleware.MyMiddleware',)
+        ):
+            auth = 'Token ' + key
+            self.client.get('/', HTTP_AUTHORIZATION=auth)