          assert_equal(stacks.pop(), 5)
          assert_equal(stacks.pop(), 3)
  
          print('Test: Pop on no elements')
          assert_equal(stacks.pop(), None)
  
          print('Success: test_set_of_stacks')
  
  
  def main():
 
</s> remove         assert_equal(stacks.pop(), 5)
        assert_equal(stacks.pop(), 3)
 </s> add         self.assertEqual(stacks.pop(), 5)
        self.assertEqual(stacks.pop(), 3) </s> remove         assert_equal(stacks.pop(), 'a')
 </s> add         self.assertEqual(stacks.pop(), 'a') </s> remove     "        assert_equal(stacks.pop(), None)\n",
 </s> add     "        self.assertEqual(stacks.pop(), None)\n", </s> remove     "        assert_equal(stacks.pop(), None)\n",
 </s> add     "        self.assertEqual(stacks.pop(), None)\n", </s> remove     "        assert_equal(stacks.pop(), 5)\n",
    "        assert_equal(stacks.pop(), 3)\n",
 </s> add     "        self.assertEqual(stacks.pop(), 5)\n",
    "        self.assertEqual(stacks.pop(), 3)\n",
        self.assertEqual(stacks.pop(), None)
          assert_equal(stacks.pop(), 5)
          assert_equal(stacks.pop(), 3)
  
          print('Test: Pop on no elements')
        self.assertEqual(stacks.pop(), None)
  
          print('Success: test_set_of_stacks')
  
  
  def main():
keep keep keep keep replace keep keep keep keep keep
 #273: Remove nose dependency for stacks_queues/ (#276) 
stacks_queues/set_of_stacks/test_set_of_stacks.py