public void ShouldNotDegradeQualityBelowZero(int sellIn, int quality)
{
// arrange
var item = new ConjuredManaCakeItem(sellIn, quality);
// act
item.Update();
// assert
Assert.Equal(0, item.Quality);
}
public void ShouldDecreaseSellInTimeAfterEachUpdate()
{
// arrange
var sellIn = 10;
var quality = 20;
var item = new ConjuredManaCakeItem(sellIn, quality);
// act
item.Update();
// assert
Assert.Equal(sellIn - 1, item.SellIn);
}
public void ShouldDegradeItemQualityTwiceAsFastAfterSellIn()
{
// arrange
var sellIn = 0;
var quality = 20;
var item = new ConjuredManaCakeItem(sellIn, quality);
// act
item.Update();
// assert
Assert.Equal(quality - 4, item.Quality);
}
public void ShouldDegradeItemQualityByTwoAfterEachUpdate()
{
// arrange
var sellIn = 10;
var quality = 20;
var item = new ConjuredManaCakeItem(sellIn, quality);
// act
item.Update();
// assert
Assert.Equal(quality - 2, item.Quality);
}
