public void InsertNodeAfterInMiddle_Expect_CorrectCount()
        {
            var linkedList = new WsLinkedList();

            linkedList.InsertFirst(2);
            linkedList.InsertFirst(3);

            linkedList.InsertAfter(3, 1);

            Assert.Equal(3, linkedList.Count);
        }
        public void InsertNodeInMiddle_Expect_OrderPersisted()
        {
            var linkedList = new WsLinkedList();

            linkedList.InsertFirst(2);
            linkedList.InsertFirst(3);

            linkedList.InsertAfter(3, 1);

            var arr = linkedList.ToArray();

            Assert.Equal(3, arr[0]);
            Assert.Equal(1, arr[1]);
            Assert.Equal(2, arr[2]);
        }