public void TestReverse() { LinkedList<int> ll = new LinkedList<int>(); ll.AddFirst(9); ll.AddFirst(8); ll.AddFirst(7); ll.AddFirst(6); ll.AddFirst(5); ll.AddFirst(4); ll.AddFirst(3); ll.AddFirst(2); ll.AddFirst(1); ll.Reverse(); int[] myAnswer = ll.ToArray(); int[] answer = new int[] { 9, 8, 7, 6, 5, 4, 3, 2, 1 }; for (int i = 0; i < answer.Length; i++) { Assert.AreEqual(answer[i], myAnswer[i]); } LinkedList<int> l2 = new LinkedList<int>(); l2.AddFirst(9); l2.AddFirst(8); l2.AddFirst(7); l2.AddFirst(6); l2.AddFirst(5); l2.AddFirst(4); l2.AddFirst(3); l2.AddFirst(2); l2.AddFirst(1); l2.ReverseRecursive(); int[] myRecursiveAnswer = l2.ToArray(); for (int i = 0; i < answer.Length; i++) { Assert.AreEqual(answer[i], myRecursiveAnswer[i]); } }