public void FineWine_When_sell_in_zero_quality_increases()
{
var item = new FineWine(0, 0);
item.UpdateItem();
Assert.Equal(2, item.Quality);
Assert.Equal(-1, item.SellIn);
item.UpdateItem();
Assert.Equal(4, item.Quality);
Assert.Equal(-2, item.SellIn);
}
public void FineWineWillGainQuality()
{
var item = new FineWine(2, 0);
item.UpdateItem();
Assert.Equal(1, item.Quality);
}
public void FineWineSellInReducesOnUpdate()
{
var item = new FineWine(2, 0);
item.UpdateItem();
Assert.Equal(1, item.SellIn);
}
public void FineWine_Quality_will_not_exceed_50_with_negative_sellin()
{
var item = new FineWine(-1, 50);
item.UpdateItem();
Assert.Equal(50, item.Quality);
Assert.Equal(-2, item.SellIn);
}