From: Kevin Benton <blak111@gmail.com>
Date: Tue, 21 Apr 2015 11:28:27 +0000 (-0700)
Subject: Add weak reference test for callback manager
X-Git-Url: https://review.fuel-infra.org/gitweb?a=commitdiff_plain;h=aa769e7065075df06d98c676de0bbff742cdc92a;p=openstack-build%2Fneutron-build.git

Add weak reference test for callback manager

Adds a unit test to make sure the callback manager can
have weakly referenced functions as callbacks.

Change-Id: Ic811e8fe63bcde2d89cdb39f9a641cde1ebd9ddb
---

diff --git a/neutron/tests/unit/callbacks/test_manager.py b/neutron/tests/unit/callbacks/test_manager.py
index 1a4b4090d..e4e64323d 100644
--- a/neutron/tests/unit/callbacks/test_manager.py
+++ b/neutron/tests/unit/callbacks/test_manager.py
@@ -142,6 +142,11 @@ class CallBacksManagerTestCase(base.BaseTestCase):
         self.assertEqual(0, callback_1.counter)
         self.assertEqual(0, callback_2.counter)
 
+    def test_feebly_referenced_callback(self):
+        self.manager.subscribe(lambda *x, **y: None, resources.PORT,
+                               events.BEFORE_CREATE)
+        self.manager.notify(resources.PORT, events.BEFORE_CREATE, mock.ANY)
+
     def test_notify_with_exception(self):
         with mock.patch.object(self.manager, '_notify_loop') as n:
             n.return_value = ['error']