Read'         stack = utils.parse_stack(t)          container_name = utils.PhysName(stack.name, 'test_resource')         self.mock_con.put_container.return_value = None         self.mock_con.delete_container.return_value = None          rsrc = self.create_resource(t, stack, 'S0Bucket')         scheduler.TaskRunner(rsrc.delete)()         self.mock_con.put_container.assert_called_once_with(             container_name,             {'X-Container-Write': 'test_tenant:test_username',              'X-Container-Read': 'test_tenant'})         self.mock_con.delete_container.assert_called_once_with(container_name)      def test_