assertTrue(docMap.containsKey("key2"));
    }

    public void test_putAll() {
        Map<String, Object> parentMap = new HashMap<>();
        DocMap docMap = new DocMap(parentMap);

        Map<String, Object> sourceMap = new HashMap<>();
        sourceMap.put("key1", "value1");
        sourceMap.put("key2", "value2");
        sourceMap.put("key3", "value3");

        // Test deeply nested exception causes
        Exception level3 = new Exception("Level 3: Database connection failed");
        Exception level2 = new Exception("Level 2: User lookup failed", level3);
        Exception level1 = new Exception("Level 1: Authentication service error", level2);
        SsoProcessException topLevel = new SsoProcessException("SSO process failed", level1);

        // Verify the chain

            int bytesRead2 = stream2.read(buffer2);
            assertEquals(testContent, new String(buffer2, 0, bytesRead2, "UTF-8"));
        }
    }

    @Test
    public void testMemoryBasedCacheWithEmptyData() throws IOException {
        byte[] data = new byte[0];
        ContentCache cache = new ContentCache(data);

        try (InputStream stream = cache.getInputStream()) {

        ComponentUtil.register(indexingHelper, "indexingHelper");
        ComponentUtil.register(new ThumbnailManager(), "thumbnailManager");
        final CrawlingConfigHelper crawlingConfigHelper = new CrawlingConfigHelper();
        crawlingConfigHelper.init();
        ComponentUtil.register(crawlingConfigHelper, "crawlingConfigHelper");
        ComponentUtil.register(new WebConfigService() {
            @Override

        final Exception[] exceptions = new Exception[threadCount];

        for (int i = 0; i < threadCount; i++) {
            final int index = i;
            threads[i] = new Thread(() -> {
                try {
                    providers[index] = new FessTimeResourceProvider(mockConfig);
                } catch (Exception e) {
                    exceptions[index] = e;
                }

        final BeanDesc beanDesc = new BeanDescImpl(MyBean.class);
        final PropertyDesc propDesc = beanDesc.getPropertyDesc("jjj");
        propDesc.setValue(myBean, null);
    }

    /**
     * @throws Exception
     */
    @Test(expected = IllegalPropertyRuntimeException.class)
    public void testSetValue_invalidType() throws Exception {
        final MyBean myBean = new MyBean();

    }

    public void test_register_entitySet() {
        RenderData data = new RenderData();

        BsUser entity1 = new BsUser();
        entity1.setName("name1");

        BsUser entity2 = new BsUser();
        entity2.setName("name2");

        Set<BsUser> entitySet = new HashSet<>();
        entitySet.add(entity1);
        entitySet.add(entity2);

        final NullPointerException npeCause = new NullPointerException("Null query parameter");
        final IllegalStateException iseCause = new IllegalStateException("Invalid parser state");
        final OutOfMemoryError oomCause = new OutOfMemoryError("Query too large");

        // Execute
        final InvalidQueryException npeException = new InvalidQueryException(messageCode, message, npeCause);

        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
    }

    public void test_constructor_withCause() {
        // Test constructor with cause only
        Throwable cause = new IllegalArgumentException("Cause exception");
        FessSystemException exception = new FessSystemException(cause);

        super.setUp();
        pingSearchEngineJob = new PingSearchEngineJob();
    }

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