assertEquals(0, item.getTags().length);
        assertNotNull(item.getRoles());
        assertEquals(1, item.getRoles().length); // Default role is added
        assertNotNull(item.getLanguages());
        assertEquals(0, item.getLanguages().length);
        assertNotNull(item.getKinds());
        assertEquals(1, item.getKinds().length);
        assertEquals(SuggestItem.Kind.DOCUMENT, item.getKinds()[0]);
    }

    @Test

    }

    // Test getLanguages method
    public void test_getLanguages_fromParams() {
        SearchRequestParams params = createMockSearchRequestParams();
        ((MockSearchRequestParams) params).setLanguages(new String[] { "en", "ja" });

        try {
            String[] languages = searchHelper.getLanguages(getMockRequest(), params);

            assertNotNull(languages);

        }
        mergedItem.tags = tagList.toArray(new String[tagList.size()]);

        final List<String> langList = new ArrayList<>(item1.getLanguages().length + item2.getLanguages().length);
        Collections.addAll(langList, item1.getLanguages());
        for (final String lang : item2.getLanguages()) {
            if (!langList.contains(lang)) {
                langList.add(lang);
            }
        }

     */
    public String[] getLanguages(final HttpServletRequest request, final SearchRequestParams params) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        if (params.getLanguages() != null) {
            final Set<String> langSet = new HashSet<>();
            for (final String lang : params.getLanguages()) {

            }

            @Override
            public Map<String, String[]> getConditions() {
                return conditions;
            }

            @Override
            public String[] getLanguages() {
                return null;
            }

            @Override
            public GeoInfo getGeoInfo() {
                return null;
            }

            @Override

        registerModifiedProperty("hitCountRelation");
        this.hitCountRelation = value;
    }

    public String getLanguages() {
        checkSpecifiedProperty("languages");
        return convertEmptyToNull(languages);
    }

    public void setLanguages(String value) {
        registerModifiedProperty("languages");
        this.languages = value;
    }

    public String getQueryId() {

            if (virtualHost != null) {
                tags.add(virtualHost);
            }

            if (sb.length() > 0) {
                final String[] langs = searchLog.getLanguages() == null ? new String[] {} : searchLog.getLanguages().split(",");
                stream(searchLog.getRoles()).of(stream -> stream.forEach(role -> roles.add(role)));

            // redirect to index page
            form.q = null;
            return redirectToRoot();
        }

        try {
            buildFormParams(form);
            form.lang = searchHelper.getLanguages(request, form);
            final WebRenderData renderData = new WebRenderData();
            searchHelper.search(form, renderData, getUserBean());
            return asHtml(virtualHost(path_SearchJsp)).renderWith(data -> {

        }

        @Override
        public Map<String, String[]> getConditions() {
            return parent.getConditions();
        }

        @Override
        public String[] getLanguages() {
            return parent.getLanguages();
        }

        @Override
        public GeoInfo getGeoInfo() {
            return parent.getGeoInfo();
        }

        @Override

                (et, vl) -> ((SearchLog) et).setHitCountRelation(DfTypeUtil.toString(vl)), "hitCountRelation");
        setupEpg(_epgMap, et -> ((SearchLog) et).getLanguages(), (et, vl) -> ((SearchLog) et).setLanguages(DfTypeUtil.toString(vl)),
                "languages");
        setupEpg(_epgMap, et -> ((SearchLog) et).getQueryId(), (et, vl) -> ((SearchLog) et).setQueryId(DfTypeUtil.toString(vl)), "queryId");