assertEquals("{labels.index_title}", FessLabels.LABELS_index_title);
        assertEquals("{labels.index_form_search_btn}", FessLabels.LABELS_index_form_search_btn);
        assertEquals("{labels.index_label}", FessLabels.LABELS_index_label);
        assertEquals("{labels.index_lang}", FessLabels.LABELS_index_lang);
        assertEquals("{labels.index_sort}", FessLabels.LABELS_index_sort);