old_contents: import unittest
  
  from . import base
  
  
  class Mp3TestCase(base.ShellParserTestCase, unittest.TestCase):
      extension = 'mp3'
      print extension
  
  	def test_mp3(self):
          """make sure default audio method output is correct"""
          print 'run test_google'
          self.compare_python_output(self.raw_text_filename)
  
      def test_mp3_google(self):
          """make sure google api python output is correct"""
          print 'run test_google'
          self.compare_python_output(self.raw_text_filename, method='google')
  
      def test_mp3_sphinx(self):
          """make sure sphinx python output is correct"""
          print 'run test_sphinx'
          self.compare_python_output(self.raw_text_filename, method='sphinx')
  
new_contents: import unittest
  
  from . import base
  
  
  class Mp3TestCase(base.ShellParserTestCase, unittest.TestCase):
      extension = 'mp3'
  
  	def test_mp3(self):
          """make sure default audio method output is correct"""
          self.compare_python_output(self.raw_text_filename)
  
      def test_mp3_google(self):
          """make sure google api python output is correct"""
          self.compare_python_output(self.raw_text_filename, method='google')
  
      def test_mp3_sphinx(self):
          """make sure sphinx python output is correct"""
          self.compare_python_output(self.raw_text_filename, method='sphinx')
  
subject: remove print statements