def test_rotate_queue_2(self):
     rotate_queue(self.qu, 2)
     self.assertEqual(self.qu.items, [3, 4, 5, 1, 2])
 def test_rotate_queue_len(self):
     rotate_queue(self.qu, len(self.qu.items))
     self.assertEqual(self.qu.items, [1, 2, 3, 4, 5])
 def test_rotate_queue_1(self):
     rotate_queue(self.qu, 1)
     self.assertEqual(self.qu.items, [2, 3, 4, 5, 1])