}

    /**
     * Checks if popular word helper is available.
     * @return True if popular word helper is available, false otherwise.
     */
    public static boolean hasPopularWordHelper() {
        return hasComponent(POPULAR_WORD_HELPER);
    }

    /**
     * Checks if related query helper is available.
     * @return True if related query helper is available, false otherwise.
     */

    }

    @Test
    public void test_hasPopularWordHelper() {
        assertFalse(ComponentUtil.hasPopularWordHelper());

        ComponentUtil.register(new Object(), "popularWordHelper");
        assertTrue(ComponentUtil.hasPopularWordHelper());
    }

    @Test
    public void test_hasRelatedQueryHelper() {
        assertFalse(ComponentUtil.hasRelatedQueryHelper());

        suggester = Suggester.builder().settings(settingsBuilder).build(searchEngineClient, fessConfig.getIndexDocumentSuggestIndex());
        if (ComponentUtil.hasPopularWordHelper()) {
            popularWordHelper = ComponentUtil.getPopularWordHelper();
        }
        try {
            suggester.settings().array().delete(SuggestSettings.DefaultKeys.SUPPORTED_FIELDS);