old_contents: import unittest
  
  from acronym import abbreviate
  
  
  # Tests adapted from `problem-specifications//canonical-data.json` @ v1.6.0
  
  class AcronymTest(unittest.TestCase):
      def test_basic(self):
          self.assertEqual(abbreviate('Portable Network Graphics'), 'PNG')
  
      def test_lowercase_words(self):
          self.assertEqual(abbreviate('Ruby on Rails'), 'ROR')
  
      def test_punctuation(self):
          self.assertEqual(abbreviate('First In, First Out'), 'FIFO')
  
      def test_all_caps_words(self):
          self.assertEqual(abbreviate('GNU Image Manipulation Program'), 'GIMP')
  
      def test_punctuation_without_whitespace(self):
          self.assertEqual(
              abbreviate('Complementary metal-oxide semiconductor'), 'CMOS')
  
      def test_very_long_abbreviation(self):
          self.assertEqual(
              abbreviate("Rolling On The Floor Laughing So Hard That "
                         "My Dogs Came Over And Licked Me"), "ROTFLSHTMDCOALM")
  
      def test_consecutive_delimiters(self):
          self.assertEqual(
              abbreviate('Something - I made up from thin air'), 'SIMUFTA')
  
      def test_apostrophes(self):
          self.assertEqual(abbreviate("Halley's Comet"), 'HC')
  
  
  if __name__ == '__main__':
      unittest.main()
  
new_contents: import unittest
  
  from acronym import abbreviate
  
  
  # Tests adapted from `problem-specifications//canonical-data.json` @ v1.7.0
  
  class AcronymTest(unittest.TestCase):
      def test_basic(self):
          self.assertEqual(abbreviate('Portable Network Graphics'), 'PNG')
  
      def test_lowercase_words(self):
          self.assertEqual(abbreviate('Ruby on Rails'), 'ROR')
  
      def test_punctuation(self):
          self.assertEqual(abbreviate('First In, First Out'), 'FIFO')
  
      def test_all_caps_words(self):
          self.assertEqual(abbreviate('GNU Image Manipulation Program'), 'GIMP')
  
      def test_punctuation_without_whitespace(self):
          self.assertEqual(
              abbreviate('Complementary metal-oxide semiconductor'), 'CMOS')
  
      def test_very_long_abbreviation(self):
          self.assertEqual(
              abbreviate("Rolling On The Floor Laughing So Hard That "
                         "My Dogs Came Over And Licked Me"), "ROTFLSHTMDCOALM")
  
      def test_consecutive_delimiters(self):
          self.assertEqual(
              abbreviate('Something - I made up from thin air'), 'SIMUFTA')
  
      def test_apostrophes(self):
          self.assertEqual(abbreviate("Halley's Comet"), 'HC')
  
      def test_underscore_emphasis(self):
          self.assertEqual(abbreviate("The Road _Not_ Taken"), 'TRNT')
  
  
  if __name__ == '__main__':
      unittest.main()
  
subject: update tests to 1.7.0 (#1649)