new_contents: from unittest.case import TestCase
  
  from unknown_language_manager import translate_language_name
  
  class TestUnknownLanguageManager(TestCase):
      def setUp(self):
          pass
  
      def tearDown(self):
          pass
  
      def test_translate_language_name(self):
          translated = translate_language_name('toninu')
          self.assertEquals(translated, 'tônino')
          translated = translate_language_name('tanana')
          self.assertEquals(translated, 'tanana')
          translated = translate_language_name('chanki')
          self.assertEquals(translated, 'tsanky')
          self.assertRaises(ValueError, translate_language_name, 'tenia nanani')
subject: test unknown language manager