new_contents: # encoding: utf-8
  
  '''
  .. codeauthor:: Tsuyoshi Hombashi <tsuyoshi.hombashi@gmail.com>
  '''
  
  from __future__ import absolute_import, print_function, unicode_literals
  
  
  def print_result(expected, actual):
      print("[expected]\n{}\n".format(expected))
      print("[actual]\n{}\n".format(actual))
  
subject: Add a test helper function