public void TestExists() { MyLinkedList list = new MyLinkedList(); list.Add(1); list.Add(2); list.Add(3); Assert.That(list.Exists(1), Is.EqualTo(true)); Assert.That(list.Exists(2), Is.EqualTo(true)); Assert.That(list.Exists(3), Is.EqualTo(true)); Assert.That(list.Exists(5), Is.EqualTo(false)); }