thumbnailManager = new TestThumbnailManager();
        thumbnailManager.baseDir = tempDir;
        thumbnailManager.thumbnailTaskQueue = new LinkedBlockingQueue<>(100);
        thumbnailManager.generating = false;
    }

    // Test implementation of ThumbnailManager to avoid container dependencies
    private class TestThumbnailManager extends ThumbnailManager {
        @Override

                    return 60;
                }
            };
            ComponentUtil.register(mockConfig, "fessConfig");

            // Register mock ThumbnailManager
            ThumbnailManager mockThumbnailManager = new ThumbnailManager() {
                private int callCount = 0;

                @Override
                public int generate(ExecutorService executorService, boolean cleanup) {

        super.setUp(testInfo);
        purgeThumbnailJob = new PurgeThumbnailJob();

        // Create a mock ThumbnailManager
        thumbnailManager = new MockThumbnailManager();

        ComponentUtil.register(thumbnailManager, "thumbnailManager");
    }

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

    private static final String RATE_LIMIT_HELPER = "rateLimitHelper";

    private static final String AUTHENTICATION_MANAGER = "authenticationManager";

    private static final String THUMBNAIL_MANAGER = "thumbnailManager";

    private static final String SSO_MANAGER = "ssoManager";

    private static final String PERMISSION_HELPER = "permissionHelper";

    private static final String QUERY_PARSER = "queryParser";

        indexingHelper.setDefaultRowSize(100);
        indexingHelper.setRequestInterval(500);
        ComponentUtil.register(indexingHelper, "indexingHelper");
        ComponentUtil.register(new ThumbnailManager(), "thumbnailManager");
        final CrawlingConfigHelper crawlingConfigHelper = new CrawlingConfigHelper();
        crawlingConfigHelper.init();
        ComponentUtil.register(crawlingConfigHelper, "crawlingConfigHelper");