new_contents: 
  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)
  
subject: Add test integrated with middleware