public void Test_Default_Constructor()
{
Core.DoublyLinkedList <int> doublyLinkList = new Core.DoublyLinkedList <int>();
Assert.Empty(doublyLinkList);
Assert.Equal(0, doublyLinkList.Count);
Assert.Null(doublyLinkList.FirstNode);
Assert.Null(doublyLinkList.LastNode);
}
public void Test_Constructor_With_Initial_Value()
{
Core.DoublyLinkedList <int> doublyLinkList = new Core.DoublyLinkedList <int>(2020);
Assert.NotEmpty(doublyLinkList);
Assert.Equal(1, doublyLinkList.Count);
Assert.Equal(2020, doublyLinkList.FirstNode.Value);
Assert.Equal(doublyLinkList.FirstNode, doublyLinkList.LastNode);
Assert.Equal(doublyLinkList.FirstNode.Value, doublyLinkList.LastNode.Value);
}
public void Test_Add_Last()
{
Core.DoublyLinkedList <int> doublyLinkedList = new Core.DoublyLinkedList <int>(10);
Assert.NotEmpty(doublyLinkedList);
doublyLinkedList.AddLast(20);
Assert.Equal(2, doublyLinkedList.Count);
Assert.Equal(10, doublyLinkedList.FirstNode.Value);
Assert.Equal(20, doublyLinkedList.LastNode.Value);
Assert.NotEqual(doublyLinkedList.FirstNode, doublyLinkedList.LastNode);
}