FileUtil.writeBytes(propFile.getAbsolutePath(), "".getBytes());
        ComponentUtil.register(new DynamicProperties(propFile), "systemProperties");
        crawlingConfigHelper = new CrawlingConfigHelper();
        crawlingConfigHelper.init();
        ComponentUtil.register(crawlingConfigHelper, "crawlingConfigHelper");
        ComponentUtil.register(new WebConfigService() {
            @Override

     */
    @Test
    public void test_searcherThrowsRuntimeException() throws Exception {
        try (RankFusionProcessor processor = new RankFusionProcessor()) {
            processor.setSearcher(new TestSearcher(100));
            processor.register(new ExceptionThrowingSearcher(new RuntimeException("Test exception")));
            processor.init();

        pingSearchEngineJob = new PingSearchEngineJob();
    }

    // Test normal operation with GREEN status and state change
    @Test
    public void test_execute_greenStatusNoChange() {
        // Setup mock components
        SearchEngineClient searchEngineClient = new SearchEngineClient() {
            @Override
            public PingResponse ping() {

        queryContext = new QueryContext("test", true);
        queryContext.addFieldLog("field", "new");

        List<String> list = fieldLogMap.get("field");
        assertEquals(2, list.size());
        assertEquals("existing", list.get(0));
        assertEquals("new", list.get(1));
    }

    // Test addFieldLog with new field
    @Test
    public void test_addFieldLog_newField() {

        super.setUp(testInfo);
        chatApiManager = new ChatApiManager();
    }

    @Test
    public void test_defaultConstructor() {
        final ChatApiManager manager = new ChatApiManager();
        assertNotNull(manager);
    }

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

        // Setup mock SearchLogHelper that throws nested exception
        SearchLogHelper mockSearchLogHelper = new SearchLogHelper() {
            @Override
            public void storeSearchLog() {
                Exception cause = new IllegalArgumentException("Root cause");
                throw new RuntimeException("Wrapper exception", cause);
            }
        };

        assertEquals(999, groupPager.getCurrentPageNumber());
        List<Integer> pageNumberList = new ArrayList<Integer>(1);
        groupPager.setPageNumberList(pageNumberList);
        assertEquals(pageNumberList, groupPager.getPageNumberList());

    }

    public void test_clear() {
        GroupPager groupPager = new GroupPager();
        groupPager.id = "testId";
        groupPager.name = "testName";

        StorageException exception2 = new StorageException("NPE", new NullPointerException("Null reference"));
        assertTrue(exception2.getCause() instanceof NullPointerException);

        StorageException exception3 = new StorageException("Custom", new FessSystemException("System error"));
        assertTrue(exception3.getCause() instanceof FessSystemException);
    }

        super.setUp(testInfo);
        mimeTypeHelper = new FessMimeTypeHelper();
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        ComponentUtil.setFessConfig(null);
        super.tearDown(testInfo);
    }

    @Test
    public void test_init_emptyConfig() throws IOException {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {

    @Test
    public void test_nestedCause() {
        // Test with nested exceptions
        RuntimeException rootCause = new RuntimeException("Root cause");
        ParseException parseException = new ParseException("Parse error");
        parseException.initCause(rootCause);
        QueryParseException queryParseException = new QueryParseException(parseException);

        assertEquals(parseException, queryParseException.getCause());