diff --git a/tests/unit/fakes.py b/tests/unit/fakes.py
index 88c56c7a..f41c119d 100644
--- a/tests/unit/fakes.py
+++ b/tests/unit/fakes.py
@@ -96,7 +96,7 @@ class FakeResource(object):
     def __getattr__(self, name):
         # NOTE(msdubov): e.g. server.delete() -> manager.delete(server)
         def manager_func(*args, **kwargs):
-            getattr(self.manager, name)(self, *args, **kwargs)
+            return getattr(self.manager, name)(self, *args, **kwargs)
         return manager_func
 
     def __getitem__(self, key):
@@ -529,6 +529,9 @@ class FakeSecurityGroupManager(FakeManager):
         sg.description = description
         return self._cache(sg)
 
+    def to_dict(self, obj):
+        return {"id": obj.id, "name": obj.name}
+
     def find(self, name, **kwargs):
         kwargs["name"] = name
         for resource in self.cache.values():