}

    @Test
    public void test_setters() throws Exception {
        PopularWordsRequest request = new PopularWordsRequest();
        request.setIndex("test-index");
        request.setSize(20);
        request.setSeed("test-seed");
        request.setWindowSize(30);
        request.setQueryFreqThreshold(5);

        assertNotNull(request);
    }

    @Test
    public void test_addTag() throws Exception {

                        .setQueryFreqThreshold(fessConfig.getSuggestPopularWordQueryFreqAsInteger());
                popularWordsRequestBuilder.setSeed(baseSeed);
                stream(baseTags).of(stream -> stream.forEach(tag -> popularWordsRequestBuilder.addTag(tag)));
                stream(baseRoles).of(stream -> stream.forEach(role -> popularWordsRequestBuilder.addRole(role)));