old_contents: 
  with open('%s.txt' % os.path.basename(os.path.abspath(__file__)), 'wt') as fobj:
      fobj.write('Hi!')
  
new_contents: 
  with open('/tmp/%s.txt' % os.path.basename(os.path.abspath(__file__)), 'wt') as fobj:
      fobj.write('Hi!')
  
subject: Fix test file path