public void DeleteAllNodes()
{
var list = new KLList();
list.Add("fred");
list.Add("wilma");
list.Add("betty");
list.Add("barney");
list.Delete(list.Find("wilma"));
list.Delete(list.Find("barney"));
list.Delete(list.Find("fred"));
list.Delete(list.Find("betty"));
Assert.AreEqual(new string[] { }, list.Values());
}
public void DeleteNodesWilmaAndBarney()
{
var list = new KLList();
list.Add("fred");
list.Add("wilma");
list.Add("betty");
list.Add("barney");
list.Delete(list.Find("wilma"));
list.Delete(list.Find("barney"));
Assert.AreEqual(new[] {"fred", "betty"}, list.Values());
}
public void DeleteNodeNullThrowAssert()
{
var list = new KLList();
list.Add("fred");
list.Add("wilma");
list.Add("betty");
list.Add("barney");
Assert.Throws<NullReferenceException>(() => list.Delete(null));
Assert.AreEqual(new[] {"fred", "wilma", "betty", "barney"}, list.Values());
}
public void AfterDeleteNodeWilmaNodeFredLinkedWithNodeBetty()
{
var list = new KLList();
list.Add("fred");
list.Add("wilma");
list.Add("betty");
list.Delete(list.Find("wilma"));
Assert.AreEqual("betty", list.Find("fred").Next.Value);
Assert.IsNull(list.Find("betty").Next);
}