return "fess_log";
        }

        @Override
        public String getFesenType() {
            return "";
        }

        @Override
        public String getAppExtensionNames() {
            return "";
        }

        @Override
        public String getIndexReindexSize() {
            return "100";
        }

        @Override

        assertEquals(".*password|.*key|.*token|.*secret", fessConfig.getAppEncryptPropertyPattern());
    }

    @Test
    public void test_appExtensionNames() {
        assertEquals("jpg,jpeg,gif,png", fessConfig.getAppExtensionNames());
    }

    @Test
    public void test_jobMaxCrawlerProcesses() {
        assertEquals(Integer.valueOf(3), fessConfig.getJobMaxCrawlerProcessesAsInteger());
    }

    @Test

     * The value is, e.g.  <br>
     * comment: Extension names for application customization.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getAppExtensionNames();

    /**
     * Get the value for the key 'app.extension.names' as {@link Integer}. <br>
     * The value is, e.g.  <br>
     * comment: Extension names for application customization.

                    if (ResourceUtil.isExist(dataPath)) {
                        insertBulkData(fessConfig, indexName, dataPath, true);
                    }
                    split(fessConfig.getAppExtensionNames(), ",").of(stream -> stream.filter(StringUtil::isNotBlank).forEach(name -> {
                        final String bulkPath = getResourcePath(indexConfigPath, fessConfig.getFesenType(),