=== modified file 'lib/lp/bugs/mail/tests/test_bug_task_assignment.py'
--- lib/lp/bugs/mail/tests/test_bug_task_assignment.py	2010-06-21 18:09:47 +0000
+++ lib/lp/bugs/mail/tests/test_bug_task_assignment.py	2010-06-21 18:10:23 +0000
@@ -68,6 +68,19 @@
         msg = stub.test_emails[-1][2]
         self.assertTrue(rationale in msg, '%s not in\n%s\n' % (rationale, msg))
 
+    def test_assignee_is_assigner_notification_message(self):
+        """Test that the string is different if someone assigns themselves a bug task."""
+        self.assertEqual(len(stub.test_emails), 0, 'emails in queue')
+        self.bug_task.transitionToAssignee(self.person_assigned)
+        notify(ObjectModifiedEvent(
+            self.bug_task, self.bug_task_before_modification,
+            ['assignee'], user=self.user))
+        transaction.commit()
+        self.assertEqual(len(stub.test_emails), 1, 'email not sent')
+        rationale = 'You have assigned yourself a bug task for a public bug'
+        msg = stub.test_emails[-1][2]
+        self.assertTrue(rationale in msg, '%s not in\n%s\n' % (rationale, msg))
+
     def test_assignee_not_a_subscriber(self):
         """Test that a new recipient being assigned a bug task does send a NEW message."""
         self.assertEqual(len(stub.test_emails), 0, 'emails in queue')