added some throttling tetst. Can't get per-user-throttling testing to work though. :( any help?

djangorestframework/tests/throttling.py

+import time
+
 from django.conf.urls.defaults import patterns
 from django.test import TestCase
 from django.utils import simplejson as json
+from django.contrib.auth.models import User
 
 from djangorestframework.compat import RequestFactory
 from djangorestframework.views import View
@@ -18,21 +21,38 @@ urlpatterns = patterns('',
     (r'^$', MockView.as_view()),
 )
 
+class ThrottlingTests(TestCase):
+    urls = 'djangorestframework.tests.throttling'   
+    
+    def setUp(self):
+        time.sleep(1) # make sure throttle is expired before next test        
+        
+    def test_requests_are_throttled(self):
+        """Ensure request rate is limited"""
+        for dummy in range(3):
+            response = self.client.get('/')
+        response = self.client.get('/')
+        self.assertEqual(503, response.status_code)
+        
+    def DISABLEDtest_request_throttling_is_per_user(self):
+        #Can not login user.....Dunno why...
+        """Ensure request rate is only limited per user, not globally"""
+        User.objects.create_user('testuser', 'test', 'foo@bar.baz').save()
+        User.objects.create_user('another_testuser', 'test', 'foo@bar.baz').save()
 
-#class ThrottlingTests(TestCase):
-#    """Basic authentication"""
-#    urls = 'djangorestframework.tests.throttling'      
-#
-#    def test_requests_are_throttled(self):
-#        """Ensure request rate is limited"""
-#        for dummy in range(3):
-#            response = self.client.get('/')
-#        response = self.client.get('/')
-#        
-#    def test_request_throttling_is_per_user(self):
-#        """Ensure request rate is only limited per user, not globally"""
-#        pass
-#    
-#    def test_request_throttling_expires(self):
-#        """Ensure request rate is limited for a limited duration only"""
-#        pass
+        self.assertTrue(self.client.login(username='testuser', password='test'))
+        for dummy in range(3):
+            response = self.client.get('/')
+        self.client.logout()
+        self.assertTrue(self.client.login(username='another_testuser', password='test'))
+        self.assertEqual(200, response.status_code)
+        
+    def test_request_throttling_expires(self):
+        """Ensure request rate is limited for a limited duration only"""
+        for dummy in range(3):
+            response = self.client.get('/')
+        response = self.client.get('/')
+        self.assertEqual(503, response.status_code)
+        time.sleep(1)
+        response = self.client.get('/')
+        self.assertEqual(200, response.status_code)