/** Fields that should be highlighted in search results */
    protected String[] highlightedFields;

    /** Original highlight tag prefix */
    protected String originalHighlightTagPre = "";

    /** Original highlight tag suffix */
    protected String originalHighlightTagPost = "";

    /** Configured highlight tag prefix */
    protected String highlightTagPre;

query.highlight.encoder=default
# Whether to force source for query highlighting.
query.highlight.force.source=false
# Fragmenter type for query highlighting.
query.highlight.fragmenter=span
# Offset for query highlight fragments.
query.highlight.fragment.offset=-1
# Size for no-match query highlight.
query.highlight.no.match.size=0
# Order for query highlight fragments.
query.highlight.order=score

                for (var col = 0; col < 7; col++) {

                    var classes = [];

                    //highlight today's date
                    if (calendar[row][col].isSame(new Date(), "day"))
                        classes.push('today');

                    //highlight weekends
                    if (calendar[row][col].isoWeekday() > 5)
                        classes.push('weekend');

        assertEquals("additional query", queryHelper.getAdditionalQuery());
    }

    @Test
    public void test_setHighlightPrefix() {
        queryHelper.setHighlightPrefix("highlight_");
        assertEquals("highlight_", queryHelper.getHighlightPrefix());
    }

    @Test
    public void test_getHighlightPrefix() {
        assertEquals("hl_", queryHelper.getHighlightPrefix());
    }

    @Test

        public HighlightInfo getHighlightInfo() {
            return new HighlightInfo().fragmentSize(Integer.parseInt(fessConfig.getOrDefault("rag.chat.highlight.fragment.size", "500")))
                    .numOfFragments(Integer.parseInt(fessConfig.getOrDefault("rag.chat.highlight.number.of.fragments", "3")))
                    .preTags(StringUtil.EMPTY)
                    .postTags(StringUtil.EMPTY);
        }