Cleaned up some lingering signals in the test suite that were causing spurious…

Cleaned up some lingering signals in the test suite that were causing spurious failures with Pypy and Postgres.

tests/modeltests/update_only_fields/tests.py

@@ -207,6 +207,9 @@ class UpdateOnlyFieldsTests(TestCase):
         self.assertEqual(len(post_save_data[0]), 1)
         self.assertTrue('name' in post_save_data[0])
 
+        pre_save.disconnect(pre_save_receiver)
+        post_save.disconnect(post_save_receiver)
+
     def test_update_fields_incorrect_params(self):
         s = Person.objects.create(name='Sara', gender='F')
 
@@ -233,6 +236,9 @@ class UpdateOnlyFieldsTests(TestCase):
         self.assertEqual(len(pre_save_data), 0)
         self.assertEqual(len(post_save_data), 0)
 
+        pre_save.disconnect(pre_save_receiver)
+        post_save.disconnect(post_save_receiver)
+
     def test_num_queries_inheritance(self):
         s = Employee.objects.create(name='Sara', gender='F')
         s.employee_num = 1

tests/regressiontests/comment_tests/tests/moderation_view_tests.py

@@ -93,6 +93,8 @@ class FlagViewTests(CommentTestCase):
         self.testFlagPost()
         self.assertEqual(received_signals, [signals.comment_was_flagged])
 
+        signals.comment_was_flagged.disconnect(receive)
+
 def makeModerator(username):
     u = User.objects.get(username=username)
     ct = ContentType.objects.get_for_model(Comment)
@@ -164,6 +166,8 @@ class DeleteViewTests(CommentTestCase):
         self.testDeletePost()
         self.assertEqual(received_signals, [signals.comment_was_flagged])
 
+        signals.comment_was_flagged.disconnect(receive)
+
     def testDeletedView(self):
         comments = self.createSomeComments()
         pk = comments[0].pk
@@ -239,6 +243,8 @@ class ApproveViewTests(CommentTestCase):
         self.testApprovePost()
         self.assertEqual(received_signals, [signals.comment_was_flagged])
 
+        signals.comment_was_flagged.disconnect(receive)
+
     def testApprovedView(self):
         comments = self.createSomeComments()
         pk = comments[0].pk

tests/regressiontests/multiple_database/tests.py

@@ -1761,6 +1761,11 @@ class SignalTests(TestCase):
         self.assertEqual(pre_delete_receiver._database, "other")
         self.assertEqual(post_delete_receiver._database, "other")
 
+        signals.pre_save.disconnect(sender=Person, receiver=pre_save_receiver)
+        signals.post_save.disconnect(sender=Person, receiver=post_save_receiver)
+        signals.pre_delete.disconnect(sender=Person, receiver=pre_delete_receiver)
+        signals.post_delete.disconnect(sender=Person, receiver=post_delete_receiver)
+
     def test_database_arg_m2m(self):
         """
         Test that the m2m_changed signal has a correct database arg (#13552)