new_contents: # -*- coding: utf-8 -*-
  """
  Created on Tue Sep  1 19:02:54 2015
  
  @author: laurence
  """
  import unittest
  from ci_test.parens_match import parens_match
  
  def test_pairs_match():
      matching = '[]{}(){({()})}'
      assert parens_match(matching)
      
  def test_mismatch():
      dont_match = '[()[]}'
      assert not parens_match(dont_match)
  
  if __name__ == '__main__':
      unittest.main()
subject: test harness