### Question:
IslLatencyService { public void handleOneWayIslLatency(IslOneWayLatency data, long timestamp) { log.debug("Received one way latency {} for ISL {}_{} ===> {}_{}, Packet Id: {}", data.getLatency(), data.getSrcSwitchId(), data.getSrcPortNo(), data.getDstSwitchId(), data.getDstPortNo(), data.getPacketId()); IslKey islKey = new IslKey(data); oneWayLatencyStorage.putIfAbsent(islKey, new LinkedList<>()); oneWayLatencyStorage.get(islKey).add(new LatencyRecord(data.getLatency(), timestamp)); if (isUpdateRequired(islKey)) { updateOneWayLatencyIfNeeded(data, islKey); } } IslLatencyService(TransactionManager transactionManager,
                             RepositoryFactory repositoryFactory, long latencyUpdateInterval,
                             long latencyUpdateTimeRange); void handleRoundTripIslLatency(IslRoundTripLatency data, Endpoint destination, long timestamp); void handleOneWayIslLatency(IslOneWayLatency data, long timestamp); static final String ONE_WAY_LATENCY; static final String ROUND_TRIP_LATENCY; }### Answer:
@Test public void handleOneWayIslLatencyTest() { assertTrue(islLatencyService.isUpdateRequired(FORWARD_ISL_KEY)); islLatencyService.handleOneWayIslLatency(createForwardOneWayLatency(1), System.currentTimeMillis()); assertForwardLatency(1); assertFalse(islLatencyService.isUpdateRequired(FORWARD_ISL_KEY)); islLatencyService.handleOneWayIslLatency(createForwardOneWayLatency(10000), System.currentTimeMillis()); assertForwardLatency(1); assertFalse(islLatencyService.isUpdateRequired(FORWARD_ISL_KEY)); }