public static void setLogLevel(String logName, String level) {
        
        switch (logName) {
            case "config-server":
                ((ch.qos.logback.classic.Logger) DEFAULT_LOG).setLevel(Level.valueOf(level));
                break;
            case "config-fatal":
                ((ch.qos.logback.classic.Logger) FATAL_LOG).setLevel(Level.valueOf(level));
                break;
            case "config-pull":
                ((ch.qos.logback.classic.Logger) PULL_LOG).setLevel(Level.valueOf(level));
                break;
            case "config-pull-check":
                ((ch.qos.logback.classic.Logger) PULL_CHECK_LOG).setLevel(Level.valueOf(level));
                break;
            case "config-dump":
                ((ch.qos.logback.classic.Logger) DUMP_LOG).setLevel(Level.valueOf(level));
                break;
            case "config-memory":
                ((ch.qos.logback.classic.Logger) MEMORY_LOG).setLevel(Level.valueOf(level));
                break;
            case "config-client-request":
                ((ch.qos.logback.classic.Logger) CLIENT_LOG).setLevel(Level.valueOf(level));
                break;
            case "config-trace":
                ((ch.qos.logback.classic.Logger) TRACE_LOG).setLevel(Level.valueOf(level));
                break;
            case "config-notify":
                ((ch.qos.logback.classic.Logger) NOTIFY_LOG).setLevel(Level.valueOf(level));
                break;
            default:
                break;
        }
        
    }
@Test
    void testSetLogLevel() {
        
        LogUtil.setLogLevel("config-server", "INFO");
        ch.qos.logback.classic.Logger defaultLog = (Logger) LogUtil.DEFAULT_LOG;
        assertEquals("INFO", defaultLog.getLevel().levelStr);
        
        LogUtil.setLogLevel("config-fatal", "INFO");
        ch.qos.logback.classic.Logger fatalLog = (Logger) LogUtil.FATAL_LOG;
        assertEquals("INFO", fatalLog.getLevel().levelStr);
        
        LogUtil.setLogLevel("config-pull", "INFO");
        ch.qos.logback.classic.Logger pullLog = (Logger) LogUtil.PULL_LOG;
        assertEquals("INFO", pullLog.getLevel().levelStr);
        
        LogUtil.setLogLevel("config-pull-check", "INFO");
        ch.qos.logback.classic.Logger pullCheckLog = (Logger) LogUtil.PULL_CHECK_LOG;
        assertEquals("INFO", pullCheckLog.getLevel().levelStr);
        
        LogUtil.setLogLevel("config-dump", "INFO");
        ch.qos.logback.classic.Logger dumpLog = (Logger) LogUtil.DUMP_LOG;
        assertEquals("INFO", dumpLog.getLevel().levelStr);
        
        LogUtil.setLogLevel("config-memory", "INFO");
        ch.qos.logback.classic.Logger memoryLog = (Logger) LogUtil.MEMORY_LOG;
        assertEquals("INFO", memoryLog.getLevel().levelStr);
        
        LogUtil.setLogLevel("config-client-request", "INFO");
        ch.qos.logback.classic.Logger clientRequestLog = (Logger) LogUtil.CLIENT_LOG;
        assertEquals("INFO", clientRequestLog.getLevel().levelStr);
        
        LogUtil.setLogLevel("config-trace", "INFO");
        ch.qos.logback.classic.Logger traceLog = (Logger) LogUtil.TRACE_LOG;
        assertEquals("INFO", traceLog.getLevel().levelStr);
        
        LogUtil.setLogLevel("config-notify", "INFO");
        ch.qos.logback.classic.Logger notifyLog = (Logger) LogUtil.NOTIFY_LOG;
        assertEquals("INFO", notifyLog.getLevel().levelStr);
        
    }