old_contents: import unittest
  from cronquot.cronquot import has_directory
  
  
  class CronquotTest(unittest.TestCase):
  
      def test_has_directory(self):
          self.assertTrue(has_directory('/tmp'))
  
  if __name__ == '__main__':
      unittest.test()
  
new_contents: import unittest
  from cronquot.cronquot import has_directory
  
  
  class CronquotTest(unittest.TestCase):
  
      def test_has_directory(self):
          self.assertTrue(has_directory('/tmp2'))
  
  if __name__ == '__main__':
      unittest.test()
  
subject: Fix testing code.