@Override
    public DefaultAlarm buildWalkFailedAlarm(DeviceId deviceId) {
        long timeRaised = System.currentTimeMillis();
        return new DefaultAlarm.Builder(
                AlarmId.alarmId(deviceId, Long.toString(timeRaised)),
                deviceId, "SNMP alarm retrieval failed",
                Alarm.SeverityLevel.CRITICAL, timeRaised).build();
    }
@Test
    public void walkFailedAlarm() {
        assertEquals("Alarms should be equals", alarm, snmpController.buildWalkFailedAlarm(device.deviceId()));
    }