public void TestListExtend() { CList <int> l1 = new CList <int>(); for (int i = 1; i <= 5; i++) { l1.Append(i); } CList <int> l2 = new CList <int>(); for (int i = 6; i <= 12; i++) { l2.Append(i); } l1.Extend(l2); Assert.AreEqual(l1.Length, 12); Assert.AreEqual("[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]", l1.ToString()); }