Ignore queue creation tests if the user running the tests is root

Otherwise they'll never pass as the root user will be able to create
'/oops' :). The idea of the tests are to see that Jens throws an
exception if the dirq cannot be auto-created because of FS
constraints.

Author: nbarrientos

jens/test/test_messaging.py

@@ -86,10 +86,14 @@ def test_fetch_all_messages_no_queuedir_is_created(self):
         self.assertEqual(0, len(msgs))
 
     def test_fetch_all_messages_queuedir_cannot_be_created(self):
+        if os.getuid() == 0:
+            return
         self.settings.MESSAGING_QUEUEDIR = "/oops"
         self.assertRaises(JensMessagingError, _fetch_all_messages)
 
     def test_purge_queue_queuedir_does_not_exist(self):
+        if os.getuid() == 0:
+            return
         self.settings.MESSAGING_QUEUEDIR = "/oops"
         self.assertRaises(JensMessagingError, purge_queue)