public void Should_Copy_To_Throw_If_Incorrect_ArrayIndex()
{
//arrange
var node1 = new MyDoublyLinkedListNode <int>(2);
var node2 = new MyDoublyLinkedListNode <int>(4);
var node3 = new MyDoublyLinkedListNode <int>(3);
var node4 = new MyDoublyLinkedListNode <int>(5);
node1.Next = node2;
node2.Next = node3;
node3.Next = node4;
node2.Prev = node1;
node3.Prev = node2;
node4.Prev = node3;
var list = new MyDoublyLinkedList <int>(node1);
var array = new int[3];
//act
Action actLower = () => list.CopyTo(array, -1);
Action actHigher = () => list.CopyTo(array, 1);
//assert
actLower.ShouldThrow <ArgumentOutOfRangeException>();
actHigher.ShouldThrow <ArgumentOutOfRangeException>();
}
public void Should_Copy_To()
{
//arrange
var node1 = new MyDoublyLinkedListNode <int>(2);
var node2 = new MyDoublyLinkedListNode <int>(4);
var node3 = new MyDoublyLinkedListNode <int>(3);
var node4 = new MyDoublyLinkedListNode <int>(5);
node1.Next = node2;
node2.Next = node3;
node3.Next = node4;
node2.Prev = node1;
node3.Prev = node2;
node4.Prev = node3;
var list = new MyDoublyLinkedList <int>(node1);
var array = new int[6];
//act
list.CopyTo(array, 2);
//assert
array[0].ShouldBeEquivalentTo(0);
array[1].ShouldBeEquivalentTo(0);
array[2].ShouldBeEquivalentTo(2);
array[3].ShouldBeEquivalentTo(4);
array[4].ShouldBeEquivalentTo(3);
array[5].ShouldBeEquivalentTo(5);
}
public void Should_Copy_To_Throw_If_Null()
{
//arrange
var list = new MyDoublyLinkedList <int>();
//act
Action act = () => list.CopyTo(null, 1);
//assert
act.ShouldThrow <ArgumentNullException>();
}
public void Should_Copy_To_Empty_List()
{
//arrange
var list = new MyDoublyLinkedList <int>();
var array = new int[3];
//act
list.CopyTo(array, 1);
//assert
array[0].ShouldBeEquivalentTo(0);
array[1].ShouldBeEquivalentTo(0);
array[2].ShouldBeEquivalentTo(0);
}
