old_contents: import shutil
  import unittest
  from unittest.case import SkipTest
  
  from bears.natural_language.LanguageToolBear import LanguageToolBear
  from tests.BearTestHelper import generate_skip_decorator
  from tests.LocalBearTestHelper import verify_local_bear
  
  try:
      import language_check
      import guess_language
  except ImportError as err:
      raise SkipTest(str(err))
  
  
  LanguageToolBearTest = verify_local_bear(
      LanguageToolBear,
      valid_files=("A correct English sentence sounds nice in everyone.",
                   "Eine korrekte englische Satz klingt nett zu jedermann."),
      invalid_files=("  ",
                     "asdgaasdfgahsadf",
                     '"quoted"'))
  
  
  LanguageToolBearLanguageTest = verify_local_bear(
      LanguageToolBear,
      valid_files=("A correct English sentence sounds nice in everyone.",),
      invalid_files=("Eine korrekte englische Satz klingt nett zu jedermann.",),
      settings={'language': 'en-US'})
  
  
  LanguageToolBearDisableRulesTest = verify_local_bear(
      LanguageToolBear,
      valid_files=("Line without unnecessary spaces at the start.",
                   "a line beginning with lowercase.",
                   "A line beginning with uppercase."),
      invalid_files=("  Line with unnecessary spaces at the start.",),
      settings={'languagetool_disable_rules': 'UPPERCASE_SENTENCE_START'})
  
  
  @generate_skip_decorator(LanguageToolBear)
  class LanguageToolBearPrerequisitesTest(unittest.TestCase):
  
      def test_check_prerequisites(self):
          _shutil_which = shutil.which
          try:
              shutil.which = lambda *args, **kwargs: None
              self.assertEqual(LanguageToolBear.check_prerequisites(),
                               "java is not installed.")
  
              shutil.which = lambda *args, **kwargs: "path/to/java"
              self.assertTrue(LanguageToolBear.check_prerequisites())
          finally:
              shutil.which = _shutil_which
  
new_contents: import shutil
  import unittest
  from unittest.case import SkipTest
  
  from bears.natural_language.LanguageToolBear import LanguageToolBear
  from tests.BearTestHelper import generate_skip_decorator
  from tests.LocalBearTestHelper import verify_local_bear
  
  try:
      import language_check
      import guess_language
  except ImportError as err:
      raise SkipTest(str(err))
  
  
  LanguageToolBearTest = verify_local_bear(
      LanguageToolBear,
      valid_files=("A correct English sentence sounds nice to everyone.",
                   "Ein korrekter englischer Satz klingt für alle gut."),
      invalid_files=("  ",
                     "asdgaasdfgahsadf",
                     '"quoted"'))
  
  
  LanguageToolBearLanguageTest = verify_local_bear(
      LanguageToolBear,
      valid_files=("A correct English sentence sounds nice to everyone.",),
      invalid_files=("Ein korrekter englischer Satz klingt für alle gut.",),
      settings={'language': 'en-US'})
  
  
  LanguageToolBearDisableRulesTest = verify_local_bear(
      LanguageToolBear,
      valid_files=("Line without unnecessary spaces at the start.",
                   "a line beginning with lowercase.",
                   "A line beginning with uppercase."),
      invalid_files=("  Line with unnecessary spaces at the start.",),
      settings={'languagetool_disable_rules': 'UPPERCASE_SENTENCE_START'})
  
  
  @generate_skip_decorator(LanguageToolBear)
  class LanguageToolBearPrerequisitesTest(unittest.TestCase):
  
      def test_check_prerequisites(self):
          _shutil_which = shutil.which
          try:
              shutil.which = lambda *args, **kwargs: None
              self.assertEqual(LanguageToolBear.check_prerequisites(),
                               "java is not installed.")
  
              shutil.which = lambda *args, **kwargs: "path/to/java"
              self.assertTrue(LanguageToolBear.check_prerequisites())
          finally:
              shutil.which = _shutil_which
  
subject: Correct test sentences