fix unittests with mocking

specs/test_comment.py

@@ -10,9 +10,12 @@ import unittest
 from werkzeug.test import Client
 from werkzeug.wrappers import Response
 
-from isso import Isso, notify
+from isso import Isso, notify, utils
 from isso.models import Comment
 
+utils.heading = lambda *args: "Untitled."
+utils.urlexists = lambda *args: True
+
 
 class FakeIP(object):
 

specs/test_vote.py

@@ -9,7 +9,10 @@ import unittest
 from werkzeug.test import Client
 from werkzeug.wrappers import Response
 
-from isso import Isso, notify
+from isso import Isso, notify, utils
+
+utils.heading = lambda *args: "Untitled."
+utils.urlexists = lambda *args: True
 
 
 class FakeIP(object):