public void BackstagePassTestDegradationBands()
{
var item = new Item
{
Name = "Backstage passes to a TAFKAL80ETC concert",
SellIn = 15,
Quality = 21
};
UpdateQuality(item);
Assert.Equal(item.Quality, 22);
UpdateQuality(item); // 23
UpdateQuality(item); // 24
UpdateQuality(item); // 25
UpdateQuality(item); // 26
UpdateQuality(item); // 28
UpdateQuality(item); // 30
UpdateQuality(item); // 32
Assert.Equal(item.Quality, 32);
UpdateQuality(item); // 34
UpdateQuality(item); // 36
UpdateQuality(item); // 39
UpdateQuality(item); // 42
Assert.Equal(item.Quality, 42);
UpdateQuality(item); // 45
UpdateQuality(item); // 48
UpdateQuality(item); // 50
Assert.Equal(item.Quality, 50); // should be no more than 50!
UpdateQuality(item); // 50
UpdateQuality(item); // 0
Assert.Equal(item.Quality, 0); // quality drops to zero now date has passed
}
private void ExpiredItemsUpdate(Item item)
{
item.SellIn--;
if (item.SellIn < 0)
{
if (NormalItem.Contains(item.Name) && item.Quality > 0)
{
item.Quality--;
}
if (item.Name == ConjuredCake)
{
item.Quality -= 2;
if (item.Quality < 0)
{
item.Quality = 0;
}
}
if (item.Name == BackstagePass || item.Quality < 0)
{
item.Quality = 0;
}
if (item.Name == AgedBrie && item.Quality < MaxQuality)
{
item.Quality++;
}
}
}
private void UpdateQuality(Item item)
{
if (ItemChecker.IncreasesOverTime(item.Name))
IncreaseQuality(item);
else
DecreaseQuality(item);
}
private void IncreaseQuality(Item item)
{
if (ItemChecker.IsBackStagePass(item.Name))
UpdateBackStagePass(item);
else
item.Quality += UpdateCalculator.Increase(item);
}
public void QualityCannotExceedMaximumQuality()
{
Item goldenSunWatch = new Item{Name = "Golden Pocket Sun Watch", SellIn = 14, Quality = MAX_QUALITY};
Store.Items.Add(goldenSunWatch);
Store.UpdateQuality();
Assert.That(goldenSunWatch.Quality, Is.LessThanOrEqualTo(MAX_QUALITY));
}
public void AgedBrieTestIncreasesInQuality()
{
var item = new Item { Name = "Aged Brie", SellIn = 2, Quality = 0 };
UpdateQuality(item);
Assert.Equal(item.Quality, 1);
Assert.Equal(item.SellIn, 1);
}
public void UpgradeReturnsNewItem()
{
var item = new Item { SellIn = 10, Quality = 10 };
var result = _itemUpgrade.Upgrade(item);
Assert.That(item, Is.Not.SameAs(result));
}
public void UpdateQuality(Item item)
{
if (item.Quality > 0)
{
item.Quality -= 2;
}
}
private void UpdateBackStagePass(Item item)
{
if (ItemChecker.BackStagePassExpired(item))
item.Quality = 0;
else
item.Quality += UpdateCalculator.BackStagePassIncrease(item);
}
public void ConjuredItemsDegradeTwiceAsFast()
{
var item = new Item() { Name = CONJURED_MANA_CAKE, SellIn = 10, Quality = 10 };
item = UpdateItemQuality(item);
Assert.That(item.Quality, Is.EqualTo(8));
}
public virtual void UpdateInventory(Item item)
{
AdjustSellInDays(item);
AdjustQuality(item);
if (item.SellIn < 0)
AdjustQuality(item);
}
public void AgedBrieIncreaseQualityAtTwiceTheRate()
{
var item = new Item() { Name = AGED_BRIE, SellIn = 0, Quality = 10 };
item = UpdateItemQuality(item);
Assert.That(item.Quality, Is.EqualTo(12));
}
public static Item UpdateQuality(Item item)
{
var program = new Program {Items = new List<Item> {item}};
program.UpdateQuality();
return item;
}
private void DecreaseQuality(Item item)
{
var decrease = UpdateCalculator.Decrease(item, ItemChecker.IsConjured(item.Name));
if (item.Quality - decrease >= 0)
item.Quality -= decrease;
}
public void BackstagePassesIncreaseInQuality()
{
var item = new Item() { Name = BACKSTAGE_PASSES, SellIn = 20, Quality = 10 };
item = UpdateItemQuality(item);
Assert.That(item.SellIn, Is.EqualTo(19));
Assert.That(item.Quality, Is.EqualTo(11));
}
public void BackstagePassesIncreaseInAtTrippleRate()
{
var item = new Item() { Name = BACKSTAGE_PASSES, SellIn = 5, Quality = 10 };
item = UpdateItemQuality(item);
Assert.That(item.SellIn, Is.EqualTo(4));
Assert.That(item.Quality, Is.EqualTo(13));
}
public void BackstagePassesExpire()
{
var item = new Item() { Name = BACKSTAGE_PASSES, SellIn = 0, Quality = 10 };
item = UpdateItemQuality(item);
Assert.That(item.SellIn, Is.EqualTo(-1));
Assert.That(item.Quality, Is.EqualTo(0));
}
public void AgedBrieTestNoMoreThan50()
{
var item = new Item { Name = "Aged Brie", SellIn = 2, Quality = 48 };
UpdateQuality(item);
UpdateQuality(item);
UpdateQuality(item);
Assert.Equal(item.Quality, 50);
}
public void QualityCanNeverBeDecreasedBelowMinimumQuality()
{
Item deOideLederhosn = new Item { Name = "Lederhose", SellIn = 1000, Quality = MIN_QUALITY };
Store.Items.Add(deOideLederhosn);
Store.UpdateQuality();
Assert.That(deOideLederhosn.Quality, Is.GreaterThanOrEqualTo(MIN_QUALITY));
}
public void when_updating_a_normal_item_past_its_sellby_date_should_degrade_two_quality()
{
var item = new Item { Name = "Item", Quality = 10, SellIn = 0 };
var program = CreateProgram(item);
program.UpdateQuality();
Assert.That(item.Quality, Is.EqualTo(8));
}
public void when_updating_a_conjured_item_should_degrade_the_quality_twice_as_fast()
{
var item = new Item { Name = "Conjured Cloak", Quality = 30, SellIn = 5 };
var program = CreateProgram(item);
program.UpdateQuality();
Assert.That(item.Quality, Is.EqualTo(28));
}
public void when_updating_aged_brie_with_50_quality_should_stay_at_50_quality()
{
var item = new Item { Name = "Aged Brie", Quality = 50, SellIn = 5 };
var program = CreateProgram(item);
program.UpdateQuality();
Assert.That(item.Quality, Is.EqualTo(50));
}
public void when_updating_aged_brie_should_appreciate_one_quality()
{
var item = new Item { Name = "Aged Brie", Quality = 10, SellIn = 10 };
var program = CreateProgram(item);
program.UpdateQuality();
Assert.That(item.Quality, Is.EqualTo(11));
}
public void CloneItem()
{
var item = new Item {SellIn = 10, Quality = 10};
var result = _itemUpgrade.Clone(item);
Assert.That(item, Is.Not.SameAs(result));
Assert.That(item.Name, Is.EqualTo(result.Name));
Assert.That(item.SellIn, Is.EqualTo(result.SellIn));
Assert.That(item.Quality, Is.EqualTo(result.Quality));
}
private Item UpdateItemAsConjured(Item item)
{
item.Quality -= 2;
if (item.Quality < 0)
item.Quality = 0;
item.SellIn -= 1;
return item;
}
private int CalculateDecrease(Item item)
{
var amountToDecreaseBy = item.SellIn < 1 ? 2 : 1;
if (IsConjured(item.Name))
{
amountToDecreaseBy *= 2;
}
return amountToDecreaseBy;
}
private void DecreaseQuality(Item item)
{
var amountToDecreaseBy = CalculateDecrease(item);
item.Quality -= amountToDecreaseBy;
if (item.Quality < 0)
{
item.Quality = 0;
}
}
public void QuailityCanNeverBeMoreThanFifty()
{
var item = new Item { Name = "Aged Brie", SellIn = 2, Quality = 50 };
var subject = new Program
{
Items = new List<Item> { item }
};
subject.UpdateQuality();
Assert.That(item.Quality, Is.EqualTo(50));
}
public void QuailityDegradesByTwoWhenPastTheSellinPeriod()
{
var item = new Item { Name = "+5 Dexterity Vest", Quality = 20, SellIn = 0 };
var subject = new Program
{
Items = new List<Item> { item }
};
subject.UpdateQuality();
Assert.That(item.Quality, Is.EqualTo(18));
}
public void QuailityOfAnItemIsNeverNegative()
{
var item = new Item { Name = "+5 Dexterity Vest", Quality = 0, SellIn = 0 };
var subject = new Program
{
Items = new List<Item> { item }
};
subject.UpdateQuality();
Assert.That(item.Quality, Is.EqualTo(0));
}