* @param config Tika config.
         */
        public TikaDetectParser(final TikaConfig config) {
            super(config.getMediaTypeRegistry(), config.getParser());
            detector = config.getDetector();
        }

        @Override
        public void parse(final InputStream stream, final ContentHandler handler, final Metadata metadata, final ParseContext context)

            }
        }
        return null;
    }

    /**
     * Sets the language detector.
     *
     * @param detector The language detector.
     */
    public void setDetector(final LanguageDetector detector) {
        this.detector = detector;
    }

    /**
     * Creates a script for updating a document with language information.
     *
     * @param doc The document.

        assertNull(languageHelper.getSupportedLanguage("   "));
    }

    public void test_setDetector() {
        // Test with null detector
        languageHelper.setDetector(null);
        assertNull(languageHelper.detector);
    }

    public void test_createScript_withBlankLanguage() {
        Map<String, Object> doc = new HashMap<>();
        doc.put("lang", "");

},\n\n  getSelectorFromElement(element) {\n    const selector = getSelector(element)\n\n    if (selector) {\n      return SelectorEngine.findOne(selector) ? selector : null\n    }\n\n    return null\n  },\n\n  getElementFromSelector(element) {\n    const selector = getSelector(element)\n\n    return selector ? SelectorEngine.findOne(selector) : null\n  },\n\n  getMultipleElementsFromSelector(element) {\n    const selector = getSelector(element)\n\n    return selector ? SelectorEngine.find(selector)...