      # method in addition to the following end-to-end test
      def test_end_to_end(self):
          print('Test: Dequeue an empty queue')
          queue = Queue()
          assert_equal(queue.dequeue(), None)
  
          print('Test: Enqueue to an empty queue')
          queue.enqueue(1)
  
          print('Test: Dequeue a queue with one element')
 
</s> remove         assert_equal(queue.dequeue(), 1)
 </s> add         self.assertEqual(queue.dequeue(), 1) </s> remove     "        assert_equal(queue.dequeue(), None)\n",
 </s> add     "        self.assertEqual(queue.dequeue(), None)\n", </s> remove     "        assert_equal(queue.dequeue(), None)\n",
 </s> add     "        self.assertEqual(queue.dequeue(), None)\n", </s> remove class TestQueue(object):
 </s> add class TestQueue(unittest.TestCase): </s> remove         assert_equal(stack.peek(), None)
        assert_equal(stack.pop(), None)
 </s> add         self.assertEqual(stack.peek(), None)
        self.assertEqual(stack.pop(), None)
        self.assertEqual(queue.dequeue(), None)
      # method in addition to the following end-to-end test
      def test_end_to_end(self):
          print('Test: Dequeue an empty queue')
          queue = Queue()
        self.assertEqual(queue.dequeue(), None)
  
          print('Test: Enqueue to an empty queue')
          queue.enqueue(1)
  
          print('Test: Dequeue a queue with one element')
keep keep keep keep replace keep keep keep keep keep
 #273: Remove nose dependency for stacks_queues/ (#276) 
stacks_queues/queue_list/test_queue_list.py