public int When_BackstagePassesItem_gets_older_then_Quality_increases(int sellIn, int quality)
        {
            var updater = new BackstagePassesUpdater();
            var item    = new Item {
                Name = "Backstage passes to a TAFKAL80ETC concert", SellIn = sellIn, Quality = quality
            };

            updater.Update(item);

            return(item.Quality);
        }
 public BackstagePassesUpdaterTest()
 {
     Updater = new BackstagePassesUpdater();
 }