ComponentUtil.register(new MockSystemHelper(), "systemHelper");
        ComponentUtil.register(new MockPopularWordHelper(), "popularWordHelper");
    }

    public void test_init() {
        SuggestHelper helper = new SuggestHelper();
        try {
            helper.init();
            assertNotNull(helper.suggester());
        } catch (Exception e) {
            assertTrue(true);
        }

        ComponentUtil.register(new MockFessConfig(), "fessConfig");

        inject(relatedQueryHelper);
        inject(virtualHostHelper);
    }

    public void test_init() {
        // Setup test data
        List<RelatedQuery> testData = new ArrayList<>();
        testData.add(createRelatedQuery("test", new String[] { "related1", "related2" }, ""));
        mockBhv.setTestData(testData);

        indexUpdateCallback.init();
    }

    @Override
    public void tearDown() throws Exception {
        super.tearDown();
    }

    public void test_init() {
        // Test initialization
        assertEquals(1048576L, indexUpdateCallback.maxDocumentRequestSize);
        assertEquals(10000, indexUpdateCallback.maxDocumentCacheSize);
    }

        assertFalse(roleQueryHelper.encryptedCookieValue);

        roleQueryHelper.setMaxAge(300);
        assertEquals(300, roleQueryHelper.maxAge);
    }

    public void test_init() {
        final RoleQueryHelper roleQueryHelper = new RoleQueryHelper();

        assertEquals(0, roleQueryHelper.defaultRoleList.size());

        roleQueryHelper.init();

        super.tearDown();
    }

    // Test constructor
    public void test_constructor() {
        assertNotNull(new WebApiFilter());
    }

    // Test init method
    public void test_init() throws ServletException {
        FilterConfig filterConfig = new FilterConfig() {
            @Override
            public String getFilterName() {
                return "testFilter";
            }

    }

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

    public void test_init() {
        // Test initialization with null fields
        queryFieldConfig.init();

        // Verify response fields are initialized
        assertNotNull(queryFieldConfig.getResponseFields());

            indexUpdater.interrupt();
            indexUpdater.join(1000);
        }
        super.tearDown();
    }

    // Test initialization
    public void test_init() {
        indexUpdater.init();
        assertNotNull(indexUpdater);
    }

    // Test initialization with IngestFactory
    public void test_init_withIngestFactory() {