options.propertiesPath = tempPropFile.getAbsolutePath();
        options.numOfThreads = 1;
        options.cleanup = false;

        // Setup mock components
        setupMockComponents();

        Method processMethod = ThumbnailGenerator.class.getDeclaredMethod("process", ThumbnailGenerator.Options.class);
        processMethod.setAccessible(true);

        try {

    @Override
    public void setUp() throws Exception {
        super.setUp();
        updateLabelJob = new UpdateLabelJob();

        // Setup mock components
        setupMockComponents();
    }

    private void setupMockComponents() {
        // Mock SearchEngineClient
        SearchEngineClient mockSearchEngineClient = new SearchEngineClient() {
            @Override
            public long updateByQuery(String index,

    @Override
    public void setUp() throws Exception {
        super.setUp();
        searchLogHelper = new SearchLogHelper();
        setupMockComponents();
        searchLogHelper.init();
    }

    private void setupMockComponents() {
        ComponentUtil.setFessConfig(new MockFessConfig());
        ComponentUtil.register(new MockSystemHelper(), "systemHelper");
    }

    public void test_init() {

        super.setUp();
        dataIndexHelper = new DataIndexHelper();
        setupMockComponents();
        // Reduce default interval to minimize test execution time
        dataIndexHelper.setCrawlingExecutionInterval(1L); // 1ms instead of 5000ms
    }

    private void setupMockComponents() {
        // Lightweight mock CrawlingConfigHelper
        ComponentUtil.register(new CrawlingConfigHelper() {

            SuggestCreator.Options options = new SuggestCreator.Options();
            options.propertiesPath = tempPropFile.getAbsolutePath();

            // Setup minimal mock components
            setupMockComponents();

            Method processMethod = SuggestCreator.class.getDeclaredMethod("process", SuggestCreator.Options.class);
            processMethod.setAccessible(true);

            try {

    private SuggestHelper suggestHelper;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        suggestHelper = new SuggestHelper();
        setupMockComponents();
    }

    private void setupMockComponents() {
        ComponentUtil.setFessConfig(new MockFessConfig());
        ComponentUtil.register(new MockSearchEngineClient(), "searchEngineClient");

    private SearchHelper searchHelper;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        searchHelper = new SearchHelper();
        setupMockComponents();
    }

    private void setupMockComponents() {
        ComponentUtil.setFessConfig(new MockFessConfig());
        ComponentUtil.register(new MockSystemHelper(), "systemHelper");
    }

    public void test_serializeParameters() {