public void DecreaseSellIn_ItemLegendary_SellInDoesntChange(int sellIn)
{
//Arrange
var item = Constructors.ItemLegendary;
item.SellIn = sellIn;
var sellInCalculator = new ItemSellInCalculator();
//Act
sellInCalculator.DecreaseSellIn(item);
//Assert
Assert.Equal(sellIn, item.SellIn);
}
public void DecreaseSellIn_Item(int sellIn)
{
//Arrange
var item = Constructors.Item;
item.SellIn = sellIn;
var sellInCalculator = new ItemSellInCalculator();
//Act
sellInCalculator.DecreaseSellIn(item);
//Assert
Assert.Equal(sellIn - 1, item.SellIn);
}