Add oslo mock fixture

Change-Id: I8f75a7c112cf8232197f901c9b1b025a30c9ba71

heat/openstack/common/fixture/mockpatch.py

@@ -0,0 +1,49 @@
+# Copyright 2010 United States Government as represented by the
+# Administrator of the National Aeronautics and Space Administration.
+# Copyright 2013 Hewlett-Packard Development Company, L.P.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+import fixtures
+import mock
+
+
+class PatchObject(fixtures.Fixture):
+    """Deal with code around mock."""
+
+    def __init__(self, obj, attr, **kwargs):
+        self.obj = obj
+        self.attr = attr
+        self.kwargs = kwargs
+
+    def setUp(self):
+        super(PatchObject, self).setUp()
+        _p = mock.patch.object(self.obj, self.attr, **self.kwargs)
+        self.mock = _p.start()
+        self.addCleanup(_p.stop)
+
+
+class Patch(fixtures.Fixture):
+
+    """Deal with code around mock.patch."""
+
+    def __init__(self, obj, **kwargs):
+        self.obj = obj
+        self.kwargs = kwargs
+
+    def setUp(self):
+        super(Patch, self).setUp()
+        _p = mock.patch(self.obj, **self.kwargs)
+        self.mock = _p.start()
+        self.addCleanup(_p.stop)

heat/tests/common.py

@@ -23,6 +23,8 @@ import testtools
 
 from oslo.config import cfg
 
+from heat.openstack.common.fixture import mockpatch
+
 from heat.engine import environment
 from heat.engine import resources
 from heat.engine import scheduler
@@ -79,3 +81,7 @@ class HeatTestCase(testtools.TestCase):
 
         self.m.StubOutWithMock(scheduler, 'wallclock')
         scheduler.wallclock = fake_wallclock
+
+    def patch(self, obj, attr):
+        mockfixture = self.useFixture(mockpatch.PatchObject(obj, attr))
+        return mockfixture.mock

openstack-common.conf

@@ -5,6 +5,7 @@ module=db
 module=db.sqlalchemy
 module=eventlet_backdoor
 module=excutils
+module=fixture
 module=gettextutils
 module=importutils
 module=install_venv_common