Move contains test in the ObjStorage test fixture
As this method is required in the ObjStorage abstract base class, the test belongs to the fixture test class of this abstract class.
Migrated from D99 (view on Phabricator)
As this method is required in the ObjStorage abstract base class, the test belongs to the fixture test class of this abstract class.
Migrated from D99 (view on Phabricator)