doc.put("content_length", "abc");

        final List<VaMessenger<FessMessages>> errorMessages = new ArrayList<>();
        AdminSearchlistAction.validateFields(doc, errorMessages::add);

        final FessMessages messages = new FessMessages();
        errorMessages.forEach(m -> m.message(messages));

        // title
        // content
        // cache
        // digest
        // host
        // site
        // url
        // anchor
        // content_length
        // last_modified
        // id
        // virtual_host
        defaultDataMap.put(fessConfig.getIndexFieldVirtualHost(),

                createFacetQueryView("size", "small", "content_length:[0 TO 10000]", "large", "content_length:[10000 TO *]"));
        final MockHttpServletRequest request = new MockHttpServletRequest();
        request.setParameterValues("ex_q",
                new String[] { "filetype:HTML", "filetype:PDF", "timestamp:[now-1y TO *]", "content_length:[0 TO 10000]" });

            public String getIndexFieldBoost() {
                return "boost";
            }

            @Override
            public String getIndexFieldContentLength() {
                return "content_length";
            }

            @Override
            public String getIndexFieldHost() {
                return "host";
            }

            @Override

labels.facet_contentLength_title:\
labels.facet_contentLength_10k=content_length:[0 TO 9999]\t\
labels.facet_contentLength_10kto100k=content_length:[10000 TO 99999]\t\
labels.facet_contentLength_100kto500k=content_length:[100000 TO 499999]\t\
labels.facet_contentLength_500kto1m=content_length:[500000 TO 999999]\t\
labels.facet_contentLength_1m=content_length:[1000000 TO *]\n\
labels.facet_filetype_title:\

        source.put("boost", 1.5);
        source.put("content_length", 12345);
        source.put("active", true);

        final String json = new JsonIndexExportFormatter().format(source, Collections.emptySet());

        assertTrue(json.contains("\"boost\": 1.5"));
        assertTrue(json.contains("\"content_length\": 12345"));
        assertTrue(json.contains("\"active\": true"));
    }

     * labels.facet_contentLength_title:labels.facet_contentLength_10k=content_length:[0 TO 9999]	labels.facet_contentLength_10kto100k=content_length:[10000 TO 99999]	labels.facet_contentLength_100kto500k=content_length:[100000 TO 499999]	labels.facet_contentLength_500kto1m=content_length:[500000 TO 999999]	labels.facet_contentLength_1m=content_length:[1000000 TO *]<br>

                    return "host";
                case FessConfig.INDEX_FIELD_SITE:
                    return "site";
                case FessConfig.INDEX_FIELD_content_length:
                    return "content_length";
                case FessConfig.INDEX_FIELD_FILETYPE:
                    return "filetype";
                case FessConfig.INDEX_FIELD_FILENAME:
                    return "filename";

            public String getIndexFieldBoost() {
                return "boost";
            }

            @Override
            public String getIndexFieldContentLength() {
                return "content_length";
            }

            @Override
            public String getIndexFieldHost() {
                return "host";
            }

            @Override
            public String getIndexFieldSite() {

        }
    }

    @Test
    public void searchTestWithSort() throws Exception {
        String sortField = "content_length";
        Map<String, String> params = new HashMap<>();
        params.put("q", "*");
        params.put("sort", sortField + ".asc");
        params.put("num", "100");