--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/forums/tests/test_receivers.py	Tue Apr 21 20:32:56 2015 -0500
@@ -0,0 +1,63 @@
+"""Tests for the forum app's signal handlers."""
+
+from django.contrib.auth.models import User
+from django.test import TestCase
+
+from mock import patch
+
+import custom_search.receivers
+
+from forums.models import Forum
+from forums.models import Post
+from forums.models import Topic
+
+
+class ReceiverTestCase(TestCase):
+
+    fixtures = ['forums.json']
+
+    def setUp(self):
+        self.user = User.objects.create_user('user', 'user@example.com', 'pw')
+
+        # Don't let our custom search signal handler class catch any of the
+        # signals we are throwing here.
+        custom_search.receivers.signal_processor.teardown()
+
+    def tearDown(self):
+        custom_search.receivers.signal_processor.setup()
+
+    @patch('forums.latest.notify_topic_delete')
+    def test_signal_handlers(self, mock_latest):
+        forum = Forum.objects.get(pk=2)
+        topic = Topic(forum=forum,
+                      name='Test Topic',
+                      user=self.user)
+        topic.save()
+        forum = Forum.objects.get(pk=2)
+        self.assertEqual(1, forum.topic_count)
+
+        post = Post(topic=topic, user=self.user, body='test')
+        post.save()
+
+        topic = Topic.objects.get(pk=topic.pk)
+        self.assertEqual(topic.post_count, 1)
+        forum = Forum.objects.get(pk=2)
+        self.assertEqual(forum.post_count, 1)
+
+        # To prevent cascading deletes
+        topic.last_post_pre_delete()
+        topic.save()
+        forum.last_post_pre_delete()
+        forum.save()
+
+        post.delete()
+        topic = Topic.objects.get(pk=topic.pk)
+        self.assertEqual(topic.post_count, 0)
+        forum = Forum.objects.get(pk=2)
+        self.assertEqual(forum.post_count, 0)
+
+        topic.delete()
+        forum = Forum.objects.get(pk=2)
+        self.assertEqual(0, forum.topic_count)
+
+        mock_latest.assert_called_once_with(topic)