def test_start_with_empty_config(self):
        rally = utils.Rally()
        config = utils.TaskConfig(None)
        with self.assertRaises(utils.RallyCliError) as err:
            rally("task start --task %s" % config.filename)
        self.assertIn("Input task is empty", err.exception.output)
dataset/ETHPy150Open openstack/rally/tests/functional/test_cli_task.py/TaskTestCase.test_start_with_empty_config/original