public void CustomQueue_Dequeue_Int_Test()
        {
            var customQueue = new CustomQueue <int>();

            customQueue.Enqueue(1);
            customQueue.Enqueue(2);
            customQueue.Enqueue(3);
            customQueue.Enqueue(4);
            customQueue.Enqueue(5);
            customQueue.Enqueue(6);
            customQueue.Enqueue(7);

            Assert.AreEqual(customQueue.Deque(), 1);
            Assert.AreEqual(customQueue.Count, 6);
        }