text: import unittest
  
  
  class TestCompress(unittest.TestCase):
  
      def test_compress(self, func):
          self.assertEqual(func(None), None)
          self.assertEqual(func(''), '')
          self.assertEqual(func('AABBCC'), 'AABBCC')
          self.assertEqual(func('AAABCCDDDD'), 'A3BCCD4')
          self.assertEqual(
              func('aaBCCEFFFFKKMMMMMMP taaammanlaarrrr seeeeeeeeek tooo'),
              'aaBCCEF4KKM6P ta3mmanlaar4 se9k to3',
          )
          print('Success: test_compress')
  
  
  def main():
      test = TestCompress()
      test.test_compress(compress_string)
  
  
  if __name__ == '__main__':
      main()
  