public void LinkedListPs_InsertAt_InsertOnWrongPosition_ThrowsIndexOutOfRangeException(int index)
        {
            var list = new LinkedListPs<string>();
            list.AddLast("0");
            list.AddLast("1");
            list.AddLast("2");

            list.InsertAt(index, "kopytko");
        }
        public void LinkedListPs_InsertAt_Ok(int position)
        {
            var list = new LinkedListPs<string>();
            list.AddLast("0");
            list.AddLast("1");
            list.AddLast("2");

            list.InsertAt(position, "kopytko");

            list[position].ShouldBe("kopytko");
        }