Improve readability of MagicMock use in RYU test

Replaces an unnecessarily complex setup of a magicmock
in an RYU test module.

Change-Id: If2e99ff76114d896a6480a884a531f901198caa5

diff --git a/neutron/tests/unit/ryu/test_ryu_security_group.py b/neutron/tests/unit/ryu/test_ryu_security_group.py
index 16f92f088fe72355e3b6e9f33ff60ee75e30f641..aadbe8266b6636fc8bc618bc452ad950912aab9c 100644 (file)
--- a/neutron/tests/unit/ryu/test_ryu_security_group.py
+++ b/neutron/tests/unit/ryu/test_ryu_security_group.py
@@ -38,10 +38,7 @@ class RyuSecurityGroupsTestCase(test_sg.SecurityGroupDBTestCase):
     def setUp(self, plugin=None):
         test_sg_rpc.set_firewall_driver(test_sg_rpc.FIREWALL_HYBRID_DRIVER)
         self.fake_ryu = fake_ryu.patch_fake_ryu_client().start()
-        notifier_p = mock.patch(NOTIFIER)
-        notifier_cls = notifier_p.start()
-        self.notifier = mock.Mock()
-        notifier_cls.return_value = self.notifier
+        self.notifier = mock.patch(NOTIFIER).start().return_value
         self._attribute_map_bk_ = {}
         for item in attributes.RESOURCE_ATTRIBUTE_MAP:
             self._attribute_map_bk_[item] = (attributes.