Adds test for local.py

Change-Id: Ia25cd85bb9f9f8c79d18525ebabd9717b81ca3a3

nova/tests/test_local.py

@@ -0,0 +1,53 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 OpenStack LLC.
+# 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 eventlet
+
+from nova import local
+from nova import test
+
+
+class Dict(dict):
+    """Make weak referencable object."""
+    pass
+
+
+class LocalStoreTestCase(test.TestCase):
+    v1 = Dict(a='1')
+    v2 = Dict(a='2')
+    v3 = Dict(a='3')
+
+    def test_thread_unique_storage(self):
+        """Make sure local store holds thread specific values."""
+        expected_set = []
+        local.store.a = self.v1
+
+        def do_something():
+            local.store.a = self.v2
+            expected_set.append(getattr(local.store, 'a'))
+
+        def do_something2():
+            local.store.a = self.v3
+            expected_set.append(getattr(local.store, 'a'))
+
+        eventlet.spawn(do_something).wait()
+        eventlet.spawn(do_something2).wait()
+        expected_set.append(getattr(local.store, 'a'))
+
+        self.assertTrue(self.v1 in expected_set)
+        self.assertTrue(self.v2 in expected_set)
+        self.assertTrue(self.v3 in expected_set)