public void ListWithOneItem_ShouldNotBeEmpty()
{
var list = new DblLinkedList <int>();
var node = DblLinkedList.CreateNode(1);
list.InsertHead(node);
list.IsEmpty().Should().BeFalse();
}
public void ListAfterInsertingAndRemovingNode_ShouldBeEmpty()
{
var list = new DblLinkedList <int>();
var node = DblLinkedList.CreateNode(1);
list.InsertTail(node);
list.Remove(node);
list.IsEmpty().Should().BeTrue();
}
private void VerifyList <T>(DblLinkedList <T> list, IList <T> expectedList)
{
if (!expectedList.Any())
{
list.Head.IsNull.Should().BeTrue();
list.Tail.IsNull.Should().BeTrue();
list.IsEmpty().Should().BeTrue();
return;
}
list.Head.IsNull.Should().BeFalse();
list.Tail.IsNull.Should().BeFalse();
list.Head.Value.Should().Be(expectedList.First());
list.Tail.Value.Should().Be(expectedList.Last());
VerifyListNode(list.Head, expectedList);
}
public void NewlyCreatedList_ShouldBeEmpty()
{
var list = new DblLinkedList <int>();
list.IsEmpty().Should().BeTrue();
}
