public void CanAddData()
        {
            Queue <int> queue = new LinearDataStructures.Queue <int>();

            queue.Enqueue(7);

            Assert.IsTrue(queue.Count == 1);
            Assert.AreEqual(7, queue.Peek());
        }
        public void CanClearQueue()
        {
            Queue <int> queue = new LinearDataStructures.Queue <int>();

            queue.Enqueue(7);
            queue.Enqueue(77);

            Assert.IsTrue(queue.Count == 2);

            queue.Clear();

            // Default value of int
            Assert.IsTrue(queue.Peek() == 0);
        }