public IEnumerator SortByNameDescending()
{
var i = new Dummy_Inventory(9);
var itemDataA = new Item("TestA", 1);
var itemDataB = new Item("TestB", 1);
i.AddItem(itemDataA, 1);
i.AddItem(itemDataB, 1);
i.SortByNameDescending();
Assert.AreEqual(itemDataB, i.GetItem(0));
Assert.AreEqual(itemDataA, i.GetItem(1));
yield return(null);
}