public void ListTestAddAfter(int expectedCount, int[] values)
{
var list = new DoublyLinkedList <int>();
foreach (var item in values)
{
if (list.Count > 0)
{
list.AddAfter(list.Tail, item);
}
else
{
list.AddNodeToFront(item);
}
}
Assert.Equal(expectedCount, list.Count);
if (expectedCount > 0)
{
Assert.Equal(list.Head.prev, list.Tail);
Assert.Equal(list.Tail.next, list.Head);
Assert.NotNull(list.Head);
Assert.NotNull(list.Tail);
Assert.Equal(values[0], list.Head.data);
Assert.Equal(values[values.Length - 1], list.Tail.data);
}
}