def test_empty_args(self):
        parser = make_argparser()
        info = StringInfo()
        with info.open("w") as f:
            status = non_exiting_main(parser, [], stdout=f)
        self.assertEqual(status, 0)
        # Confirm that help is displayed.
        self.assertStartsWith(info.value, "usage: ")
Run migrations in 'online' mode.
dataset/ETHPy150Open cjerdonek/open-rcv/openrcv/test/scripts/test_run.py/NonExitingMainTest.test_empty_args--crossover with--dataset/ETHPy150Open openstack/taskflow/taskflow/persistence/backends/sqlalchemy/alembic/env.py/run_migrations_online