}
        }
        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("   "));
    }

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

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