new_contents: from unittest import TestCase, main
  
  from qiita_pet.util import clean_str
  
  # -----------------------------------------------------------------------------
  # Copyright (c) 2014--, The Qiita Development Team.
  #
  # Distributed under the terms of the BSD 3-clause License.
  #
  # The full license is in the file LICENSE, distributed with this software.
  # -----------------------------------------------------------------------------
  
  
  class TestUtil(TestCase):
      def test_clean_str(self):
          obs = clean_str("Remove Spaces From:String")
          self.assertEqual(obs, "Remove_Spaces_FromString")
  
  
  if __name__ == "__main__":
      main()
  
subject: add test for qiita_pet.util