old_contents: import unittest
  from etk.extractors.language_identification_extractor import LanguageIdentificationExtractor
  
  
  class TestLanguageIdentificationExtractor(unittest.TestCase):
      def test_langid(self):
          extractor = LanguageIdentificationExtractor()
  
          text_en = "langid.py comes pre-trained on 97 languages (ISO 639-1 codes given)"
          result_en = extractor.extract(text_en, "LANGID")
          self.assertEqual(result_en[0].value, "en")
  
          text_es = "Hola Mundo"
          result_es = extractor.extract(text_es, "LANGID")
          self.assertEqual(result_es[0].value, "es")
  
          text_de = "Ein, zwei, drei, vier"
          result_de = extractor.extract(text_de, "LANGID")
          self.assertEqual(result_de[0].value, "de")
  
          text_unknown = "%$@$%##"
          result_unknown = extractor.extract(text_unknown, "LANGID")
          self.assertEqual(result_unknown[0].value, "en")
  
      def test_langdetect(self):
          extractor = LanguageIdentificationExtractor()
  
          text_en = "langdetect supports 55 languages out of the box (ISO 639-1 codes)"
          result_en = extractor.extract(text_en, "LANGDETECT")
          self.assertEqual(result_en[0].value, "en")
  
          text_es = "Hola Mundo"
          result_es = extractor.extract(text_es, "LANGDETECT")
          self.assertEqual(result_es[0].value, "es")
  
          text_de = "Ein, zwei, drei, vier"
          result_de = extractor.extract(text_de, "LANGDETECT")
          self.assertEqual(result_de[0].value, "de")
  
          text_unknown = "%$@$%##"
          result_unknown = extractor.extract(text_unknown, "LANGDETECT")
          self.assertFalse(result_unknown)
  
  
  if __name__ == '__main__':
      unittest.main()
  
new_contents: import unittest
  from etk.extractors.language_identification_extractor import LanguageIdentificationExtractor
  
  
  class TestLanguageIdentificationExtractor(unittest.TestCase):
      def test_langid(self):
          extractor = LanguageIdentificationExtractor()
  
          text_en = "langid.py comes pre-trained on 97 languages (ISO 639-1 codes given)"
          result_en = extractor.extract(text_en, "LANGID")
          self.assertEqual(result_en[0].value, "en")
  
          text_es = "Hola Mundo"
          result_es = extractor.extract(text_es, "LANGID")
          self.assertEqual(result_es[0].value, "es")
  
          text_de = "Ein, zwei, drei, vier"
          result_de = extractor.extract(text_de, "LANGID")
          self.assertEqual(result_de[0].value, "de")
  
          text_unknown = "%$@$%##"
          result_unknown = extractor.extract(text_unknown, "LANGID")
          self.assertEqual(result_unknown[0].value, "en")
  
      def test_langdetect(self):
          extractor = LanguageIdentificationExtractor()
  
          text_en = "langdetect supports 55 languages out of the box (ISO 639-1 codes)"
          result_en = extractor.extract(text_en, "LANGDETECT")
          self.assertEqual(result_en[0].value, "en")
  
          text_es = "Hola Mundo"
          result_es = extractor.extract(text_es, "LANGDETECT")
          self.assertEqual(result_es[0].value, "es")
  
          text_de = "Ein, zwei, drei, vier"
          result_de = extractor.extract(text_de, "LANGDETECT")
          self.assertEqual(result_de[0].value, "de")
  
          text_unknown = "%$@$%##"
          result_unknown = extractor.extract(text_unknown, "LANGDETECT")
          self.assertTrue(len(result_unknown) == 0)
  
  
  if __name__ == '__main__':
      unittest.main()
  
subject: update language identification unit test