OpenSource/GildedRose-Refactoring-Kata
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Refactoring UpdateQuality function to make it easier to read and modify

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This commit is contained in:
Jeremie Magnette 2020-12-19 16:20:09 +01:00
parent 137b503798
commit 3b309a199f
2 changed files with 74 additions and 61 deletions
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133
csharpcore/GildedRose.cs
View File

@ -2,8 +2,20 @@
namespace csharpcore
{
public class GildedRoseConstants
{
}
public class GildedRose
{
public const int MIN_QUALITY = 0;
public const int MAX_QUALITY = 50;
public const string SULFURA_ITEM = "sulfura";
public const string AGED_BRIE_ITEM = "aged brie";
public const string BACKSTAGE_PASS_ITEM = "backstage pass";
IList<Item> Items;
public GildedRose(IList<Item> Items)
{
@ -12,78 +24,79 @@ namespace csharpcore
public void UpdateQuality()
{
for (var i = 0; i < Items.Count; i++)
foreach (var item in Items)
{
if (Items[i].Name != "Aged Brie" && Items[i].Name != "Backstage passes to a TAFKAL80ETC concert")
{
if (Items[i].Quality > 0)
{
if (Items[i].Name != "Sulfuras, Hand of Ragnaros")
{
Items[i].Quality = Items[i].Quality - 1;
}
}
}
var lowerCaseItemName = item.Name.ToLower();
if (lowerCaseItemName.Contains(SULFURA_ITEM))
HandleSulfuraItem(item);
else
{
if (Items[i].Quality < 50)
item.SellIn -= 1;
if (lowerCaseItemName.Contains(AGED_BRIE_ITEM))
{
Items[i].Quality = Items[i].Quality + 1;
if (Items[i].Name == "Backstage passes to a TAFKAL80ETC concert")
{
if (Items[i].SellIn < 11)
{
if (Items[i].Quality < 50)
{
Items[i].Quality = Items[i].Quality + 1;
}
}
if (Items[i].SellIn < 6)
{
if (Items[i].Quality < 50)
{
Items[i].Quality = Items[i].Quality + 1;
}
}
}
HandleAgedBrieItem(item);
}
}
if (Items[i].Name != "Sulfuras, Hand of Ragnaros")
{
Items[i].SellIn = Items[i].SellIn - 1;
}
if (Items[i].SellIn < 0)
{
if (Items[i].Name != "Aged Brie")
else if (lowerCaseItemName.Contains(BACKSTAGE_PASS_ITEM))
{
if (Items[i].Name != "Backstage passes to a TAFKAL80ETC concert")
{
if (Items[i].Quality > 0)
{
if (Items[i].Name != "Sulfuras, Hand of Ragnaros")
{
Items[i].Quality = Items[i].Quality - 1;
}
}
}
else
{
Items[i].Quality = Items[i].Quality - Items[i].Quality;
}
HandleBackstagePassItem(item);
}
else
{
if (Items[i].Quality < 50)
{
Items[i].Quality = Items[i].Quality + 1;
}
HandleMiscelaniousItem(item);
}
}
}
}
private void HandleSulfuraItem(Item item)
{
// We do not alter anything on Sulfura items !
}
private void HandleAgedBrieItem(Item item)
{
if (item.SellIn > 0)
UpdateItemQualityValue(item, 1);
else
UpdateItemQualityValue(item, 2); // Is it correct ? This is to reflect old code but seems to not be in the spec
}
private void HandleBackstagePassItem(Item item)
{
if (item.SellIn >= 10)
UpdateItemQualityValue(item, 1);
else if (item.SellIn >= 5)
UpdateItemQualityValue(item, 2);
else if (item.SellIn > 0)
UpdateItemQualityValue(item, 3);
else
item.Quality = MIN_QUALITY;
}
private void HandleMiscelaniousItem(Item item)
{
if (item.SellIn > 0)
UpdateItemQualityValue(item, -1);
else
UpdateItemQualityValue(item, -2);
}
private void UpdateItemQualityValue(Item item, int qualityStep)
{
item.Quality += qualityStep;
if (item.Quality < MIN_QUALITY)
item.Quality = MIN_QUALITY;
if (item.Quality > MAX_QUALITY)
item.Quality = MAX_QUALITY;
}
}
}

2
csharpcore/GildedRoseTest.cs
View File

@ -72,7 +72,7 @@ namespace csharpcore
app.UpdateQuality();
Assert.Equal(afterQuality, items[0].Quality);
Assert.Equal(beforeSellIn-1, items[0].SellIn);
Assert.Equal(beforeSellIn - 1, items[0].SellIn);
}
[Theory]