Function test_netdev_status_set

components/net/utest/tc_netdev.c:526–568

* @brief Test network device status setting operations * * This function tests: * - Network interface up/down operations * - Link status setting and verification * - Status operation error handling * - Status restoration * * @note Carefully avoids disrupting network connectivity during testing */

 * @note Carefully avoids disrupting network connectivity during testing
 */
static void test_netdev_status_set(void)
{
    rt_err_t res;
    rt_bool_t original_link_up;

    /* Test set_up and set_down - be careful not to disrupt network */
    rt_bool_t was_up = netdev_is_up(netdev_default);

    if (!was_up)
    {
        res = netdev_set_up(netdev_default);
        uassert_true(res == RT_EOK);
        uassert_true(netdev_is_up(netdev_default));
    }

    uassert_true(netdev_is_up(netdev_default));
    uassert_true(netdev_default->ops->set_up != RT_NULL);
    uassert_true(netdev_default->ops->set_down != RT_NULL);

    /* Test set_down and set_up cycle */
    res = netdev_set_down(netdev_default);
    if (res == RT_EOK)
    {
        uassert_false(netdev_is_up(netdev_default));
        res = netdev_set_up(netdev_default);
        uassert_true(res == RT_EOK);
        uassert_true(netdev_is_up(netdev_default));
    }
    else
    {
        uassert_true(netdev_is_up(netdev_default));
    }

    /* Test link status */
    original_link_up = netdev_is_link_up(netdev_default);
    netdev_low_level_set_link_status(netdev_default, RT_FALSE);
    uassert_false(netdev_is_link_up(netdev_default));
    netdev_low_level_set_link_status(netdev_default, RT_TRUE);
    uassert_true(netdev_is_link_up(netdev_default));

    /* Restore original link status */
    netdev_low_level_set_link_status(netdev_default, original_link_up);
}

/**
 * @brief Test network device configuration setting operations