public void InsertedElementCanBeRetrieved()
{
LinkedList list = new LinkedList();
int testValue = 1;
list.Add(testValue);
int lastAddedItem = list.Last();
Assert.AreEqual(testValue, lastAddedItem);
}
public void InsertedLowerElementIsNotLast()
{
LinkedList list = new LinkedList();
int testValue = 5;
int smallerTestValue = 3;
list.Add(testValue);
list.Add(smallerTestValue);
int lastAddedItem = list.Last();
Assert.AreEqual(testValue, lastAddedItem);
}
public void InsertedMultipleItemsAreSorted()
{
LinkedList list = new LinkedList();
int[] values = { 5, 3, 4, 0 };
foreach (int val in values)
{
list.Add(val);
}
Array.Sort(values);
int counter = 0;
foreach(var item in list.Next()) {
Assert.AreEqual(values[counter], item.Value);
counter++;
}
}
public void LastOneEmptyListThrowsInvalidOperation()
{
LinkedList list = new LinkedList();
Assert.Throws(typeof(InvalidOperationException), () => list.Last());
}