end of day gilded rose full implementation

Kotlin/src/main/kotlin/com/gildedrose/GildedRose.kt

@@ -11,7 +11,12 @@ class GildedRose(val items: List<Item>) {
             }
 
             if (items[i].name == "Aged Brie") {
-                items[i].quality += 1
+                if (items[i].sellIn < 0) {
+                    items[i].quality += 2
+                } else {
+                    items[i].quality += 1
+                }
+
             }
 
             if (items[i].name == "Backstage passes to a TAFKAL80ETC concert" && items[i].sellIn < 0) {
@@ -50,6 +55,10 @@ class GildedRose(val items: List<Item>) {
                 items[i].quality = 50
             }
 
+            if (items[i].quality == 0) {
+                items[i].quality = 0
+            }
+
         }
     }
 

Kotlin/src/main/kotlin/com/gildedrose/TexttestFixture.kt

@@ -13,7 +13,6 @@ fun main(args: Array<String>) {
             Item("Backstage passes to a TAFKAL80ETC concert", 15, 20),
             Item("Backstage passes to a TAFKAL80ETC concert", 10, 49),
             Item("Backstage passes to a TAFKAL80ETC concert", 5, 49),
-            // this conjured item does not work properly yet
             Item("Conjured Mana Cake", 3, 6)
     )
 

Kotlin/src/test/kotlin/com/gildedrose/GildedRoseTest.kt

@@ -15,6 +15,16 @@ internal class GildedRoseTest {
         assertEquals(19, app.items[0].quality)
     }
 
+    @Test
+    fun dexterityVestNegativeSellIn() {
+        val items = listOf(Item("+5 Dexterity Vest", 0, 20))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals("+5 Dexterity Vest",  app.items[0].name)
+        assertEquals(-1, app.items[0].sellIn)
+        assertEquals(18, app.items[0].quality)
+    }
+
     @Test
     fun agedBrie() {
         val items = listOf(Item("Aged Brie", 2, 0))
@@ -24,6 +34,7 @@ internal class GildedRoseTest {
         assertEquals(1, app.items[0].sellIn)
         assertEquals(1, app.items[0].quality)
     }
+
     @Test
     fun elixirOfTheMongoose() {
         val items = listOf(Item("Elixir of the Mongoose", 5, 7))