diff -r 96549de9dd70 -r 8aabfefc8a81 sobjects/test/unittest_notification.py
--- a/sobjects/test/unittest_notification.py	Tue Apr 08 17:39:39 2014 +0200
+++ b/sobjects/test/unittest_notification.py	Tue Apr 08 18:00:14 2014 +0200
@@ -31,10 +31,10 @@
         msgid1 = construct_message_id('testapp', 21)
         msgid2 = construct_message_id('testapp', 21)
         self.assertNotEqual(msgid1, msgid2)
-        self.assertFalse('&' in msgid1)
-        self.assertFalse('=' in msgid1)
-        self.assertFalse('/' in msgid1)
-        self.assertFalse('+' in msgid1)
+        self.assertNotIn('&', msgid1)
+        self.assertNotIn('=', msgid1)
+        self.assertNotIn('/', msgid1)
+        self.assertNotIn('+', msgid1)
         values = parse_message_id(msgid1, 'testapp')
         self.assertTrue(values)
         # parse_message_id should work with or without surrounding <>