}

                // Return test values for specific properties
                switch (propertyKey) {
                case "domain.title":
                    return "Test Fess";
                case "search_engine.type":
                    return "opensearch";
                case "test.property":
                    return "config-value";
                case "filter.null":

			 "http.cors.allow-origin":"*",
			 "discovery.type":"single-node",
			 "cluster.allocator.existing_shards_allocator.batch_enabled":"true",
			 <!--
			 "node.name":"search_engine",
			 "discovery.seed_hosts":"search_engine",
			 "cluster.initial_cluster_manager_nodes":"search_engine",
			 "node.roles":"cluster_manager,data,ingest,ml",
			 -->
			 "indices.breaker.total.limit":"100%",
			 "action.auto_create_index":"-*"}
		</property>

        assertEquals("domain.title", FessConfig.DOMAIN_TITLE);

        assertNotNull(FessConfig.search_engine_TYPE);
        assertEquals("search_engine.type", FessConfig.search_engine_TYPE);

        assertNotNull(FessConfig.search_engine_HTTP_URL);
        assertEquals("search_engine.http.url", FessConfig.search_engine_HTTP_URL);

        assertNotNull(FessConfig.INDEX_FIELD_favorite_count);

                return fesenUrl;
            }
        });

        // Set system property to ensure ResourceUtil.getFesenHttpUrl() works
        System.setProperty("fess.search_engine.http_address", fesenUrl);
    }

    private NodeManager getNodeManager(CurlHelper curlHelper) {
        try {
            Field field = CurlHelper.class.getDeclaredField("nodeManager");

    }

    public void test_constants_reference() {
        // Test that the constant used is accessible and has expected value
        assertEquals("fess.search_engine.http_address", Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);
    }

    public void test_static_method_signature() {
        // Verify method signature is correct
        try {

                .execute()
                .actionGet(fessConfig.getIndexHealthTimeout());

        final SuggestSettingsBuilder settingsBuilder = SuggestSettings.builder();
        settingsBuilder.addInitialSettings("search_engine.type", fessConfig.getFesenType());
        settingsBuilder.bulkTimeout(fessConfig.getIndexBulkTimeout());
        settingsBuilder.clusterTimeout(fessConfig.getIndexHealthTimeout());

    public static final String MATCHES_ALL_QUERY = "*:*";

    /** Configuration key for search engine HTTP address. */
    public static final String FESS_SEARCH_ENGINE_HTTP_ADDRESS = "fess.search_engine.http_address";

    /** Default number of results per page. */
    public static final int DEFAULT_PAGE_SIZE = 20;

    /** Default starting count for pagination. */

            assertNull(e.getComponentName());
        }
    }

    public void test_throwAndCatchWithCause() {
        // Test throwing and catching the exception with cause
        String componentName = "searchEngine";
        Exception expectedCause = new IllegalStateException("Not initialized");

        try {
            throw new ContainerNotAvailableException(componentName, expectedCause);