public void TestGetItemAt()
{
CustomLinkedList<DayOfWeek> list = new CustomLinkedList<DayOfWeek>();
list.AddLast(DayOfWeek.Monday);
list.AddFirst(DayOfWeek.Sunday);
list.AddLast(DayOfWeek.Tuesday);
list.AddLast(DayOfWeek.Wednesday);
Assert.AreEqual( DayOfWeek.Tuesday,list.GetItemAt(2).Data);
}
public void TestGetItemAtInvalidIndex()
{
CustomLinkedList<DayOfWeek> list = new CustomLinkedList<DayOfWeek>();
list.AddLast(DayOfWeek.Sunday);
list.AddLast(DayOfWeek.Monday);
list.GetItemAt(-1);
}