public void StackQueueAddedItemCountTest()
        {
            StackQueue sq = new StackQueue();

            sq.Enqueue(new StackQueueElement()
            {
                ElementValue = 1
            });
            sq.Enqueue(new StackQueueElement()
            {
                ElementValue = 2
            });
            sq.Enqueue(new StackQueueElement()
            {
                ElementValue = 3
            });

            Assert.AreEqual(3, sq.Count());
        }