final long createdTime = ((Number) body.get("createdTime")).longValue();
        final long expiredTime = ((Number) body.get("expiredTime")).longValue();
        // operation TTL = 7200000
        assertEquals(7200000L, expiredTime - createdTime);
    }

    @Test
    public void test_getIndexName_emptyPrefix() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {

labels.facet_contentLength_10kto100k=content_length:[10000 TO 99999]\t\
labels.facet_contentLength_100kto500k=content_length:[100000 TO 499999]\t\
labels.facet_contentLength_500kto1m=content_length:[500000 TO 999999]\t\
labels.facet_contentLength_1m=content_length:[1000000 TO *]\n\
labels.facet_filetype_title:\
labels.facet_filetype_html=filetype:html\t\
labels.facet_filetype_word=filetype:word\t\

     * labels.facet_filetype_title:labels.facet_filetype_html=filetype:html	labels.facet_filetype_word=filetype:word	labels.facet_filetype_excel=filetype:excel	lab...

     * Set to -1 to disable automatic purging of search logs.
     */
    @Min(-1)
    @Max(100000)
    @ValidateTypeFailure
    public Integer purgeSearchLogDay;

    /**
     * Number of days to keep job logs before purging.
     * Set to -1 to disable automatic purging of job logs.
     */
    @Min(-1)
    @Max(100000)
    @ValidateTypeFailure
    public Integer purgeJobLogDay;

    /**

        final long[] observedTimes = new long[10];
        final Thread[] threads = new Thread[10];

        // Trigger cache refresh by setting old time
        testFactory.lastLoadedTime = System.currentTimeMillis() - 70000L;

        // One thread updates
        Thread updater = new Thread(() -> {
            testFactory.getDataStoreNames();
        });

        updater.start();
        updater.join();

        final String longTitle = "T".repeat(1000);
        final ChatMessage msg = createAssistantWithSources("A".repeat(500), longTitle);
        final String result = chatClient.testBuildAssistantHistoryContent(msg, "smart_summary", 200, 200);
        // maxSuffixLen = 200/4 = 50, suffix is truncated to 50 chars
        assertNotNull(result);
        // The suffix portion should not exceed maxSuffixLen

        assertTrue(populatedString.contains("partialResults=false"));
        assertTrue(populatedString.contains("queryTime=500"));
        assertTrue(populatedString.contains("requestedTime=1000000"));
    }

    @Test
    public void test_complexScenario() {
        // Simulate a typical search result scenario
        // Page 2 of search results with 10 items per page

        assertEquals(0, mockResponse.getStatus());
    }

    @Test
    public void test_doFilter_aboveHundredThreshold() throws IOException, ServletException {
        setConfig(200, 200);
        testableFilter.setCpuPercent((short) 90);
        mockRequest.setRequestURI("/search");

        testableFilter.doFilter(mockRequest, mockResponse, mockFilterChain);

        final List<LlmMessage> history = new ArrayList<>();
        history.add(LlmMessage.user("Q1")); // 2 chars
        history.add(LlmMessage.assistant("A".repeat(200))); // 200 chars - too large
        history.add(LlmMessage.user("Q2")); // 2 chars
        history.add(LlmMessage.assistant("A2")); // 2 chars
        final LlmChatRequest request = new LlmChatRequest();