public void DegradeNormalItem()
{
var item = new Item {
Name = "normal", SellIn = 1, Quality = 5
};
var app = new GildedRose(null);
// check decreases by 1
app.DegradeNormalItem(item);
Assert.AreEqual(4, item.Quality);
Assert.AreEqual(0, item.SellIn);
// check decreases by 2 when past sell by
app.DegradeNormalItem(item);
Assert.AreEqual(2, item.Quality);
Assert.AreEqual(-1, item.SellIn);
}
