regression-test/suites/node_p0/test_frontend.groovy

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suite("test_frontend", "nonConcurrent") {
    def res = sql """SHOW FRONTENDS DISKS"""
    assertTrue(res.size() != 0)

    def res2 = sql """SHOW FRONTENDS Disks"""
    assertTrue(res2.size() != 0)

    if (isCloudMode()) {
        // In the test_sql_mode_node_mgr regression case, there is already a similar and more complex case. This case is redundant. Additionally, there is a 5-minute limit for dropping FE on the cloud.
        // so ignore it in cloud
        return;
    }
    def address = "127.0.0.1"
    def notExistPort = 12345

    for (int i = 0; i < 2; i++) {
        def result = sql """SHOW FRONTENDS;"""
        logger.debug("result:${result}")

        sql """ALTER SYSTEM ADD FOLLOWER "${address}:${notExistPort}";"""
        waitAddFeFinished(address, notExistPort);
        result = sql """SHOW FRONTENDS;"""
        logger.debug("result:${result}")

        sql """ALTER SYSTEM DROP FOLLOWER "${address}:${notExistPort}";"""
        waitDropFeFinished(address, notExistPort);
        result = sql """SHOW FRONTENDS;"""
        logger.debug("result:${result}")

        sql """ALTER SYSTEM ADD OBSERVER "${address}:${notExistPort}";"""
        waitAddFeFinished(address, notExistPort);
        result = sql """SHOW FRONTENDS;"""
        logger.debug("result:${result}")

        sql """ALTER SYSTEM DROP OBSERVER "${address}:${notExistPort}";"""
        waitDropFeFinished(address, notExistPort);
        result = sql """SHOW FRONTENDS;"""
        logger.debug("result:${result}")
    }
}