public void test_indexFieldContent() {
        assertEquals("content", fessConfig.getIndexFieldContent());
    }

    public void test_indexFieldCache() {
        assertEquals("cache", fessConfig.getIndexFieldCache());
    }

    public void test_indexFieldDigest() {
        assertEquals("digest", fessConfig.getIndexFieldDigest());
    }

    public void test_indexFieldHost() {

            public String getIndexFieldHasCache() {
                return baseConfig.getIndexFieldHasCache();
            }

            @Override
            public String getIndexFieldCache() {
                return baseConfig.getIndexFieldCache();
            }

            @Override
            public String getIndexFieldLabel() {
                return baseConfig.getIndexFieldLabel();
            }

            @Override
            public String[] getQueryAdditionalApiResponseFields(String... fields) {
                return fields;
            }

            @Override
            public String getIndexFieldCache() {
                return "cache";
            }

            @Override
            public String getIndexFieldLabel() {
                return "label";
            }

            @Override

        final String body = documentHelper.getContent(crawlingConfig, responseData, bodyBase, dataMap);
        putResultDataBody(dataMap, fessConfig.getIndexFieldContent(), body);
        if ((fieldConfigs.getConfig(fessConfig.getIndexFieldCache())
                .map(org.codelibs.fess.crawler.util.FieldConfigs.Config::isCache)
                .orElse(false) || fessConfig.isCrawlerDocumentCacheEnabled()) && fessConfig.isSupportedDocumentCacheMimetypes(mimeType)) {

                    fessConfig.getIndexFieldFavoriteCount(), //
                    fessConfig.getIndexFieldConfigId(), //
                    fessConfig.getIndexFieldLang(), //
                    fessConfig.getIndexFieldCache());
        }
        if (highlightedFields == null) {
            highlightedFields = fessConfig.getQueryAdditionalHighlightedFields( //
                    fessConfig.getIndexFieldContent());
        }

            }

            @Override
            public String getIndexFieldHasCache() {
                return "has_cache";
            }

            @Override
            public String getIndexFieldCache() {
                return "cache";
            }

            @Override
            public String getIndexFieldLabel() {
                return "label";
            }

            @Override

            }

            @Override
            public String getIndexFieldHasCache() {
                return "has_cache";
            }

            @Override
            public String getIndexFieldCache() {
                return "cache";
            }

            @Override
            public String getIndexFieldContent() {
                return "content";
            }

            @Override

        final String fileName = getFileName(url, urlEncoding);
        putResultDataContent(dataMap, responseData, fessConfig, crawlingConfig, documentHelper, body, fileName);
        if ((fieldConfigs.getConfig(fessConfig.getIndexFieldCache())
                .map(org.codelibs.fess.crawler.util.FieldConfigs.Config::isCache)
                .orElse(false) || fessConfig.isCrawlerDocumentCacheEnabled()) && fessConfig.isSupportedDocumentCacheMimetypes(mimeType)) {

        doc.put(QUERIES, queries);

        String cache = DocumentUtil.getValue(doc, fessConfig.getIndexFieldCache(), String.class);
        if (cache != null) {
            final String mimetype = DocumentUtil.getValue(doc, fessConfig.getIndexFieldMimetype(), String.class);

     * The value is, e.g. cache <br>
     * comment: Field name for cache in the index.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldCache();

    /**
     * Get the value for the key 'index.field.digest'. <br>
     * The value is, e.g. digest <br>
     * comment: Field name for digest in the index.