Update GildedRoseTest.kt

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

@@ -6,14 +6,173 @@ import org.junit.jupiter.api.Test
 internal class GildedRoseTest {
 
     @Test
-    fun foo() {
+    fun sameName() {
         val items = listOf(Item("foo", 0, 0))
         val app = GildedRose(items)
         app.updateQuality()
-        assertEquals("fixme", app.items[0].name)
+        assertEquals("foo", app.items[0].name)
 
     }
+    @Test
+    fun qualityDecreases() {
+        val items = listOf(Item("foo", 1, 1))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(0, app.items[0].quality)
 
+    }
+    @Test
+    fun sellinDecreases() {
+        val items = listOf(Item("foo", 2, 1))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(1, app.items[0].sellIn)
+
+    }
+    @Test
+    fun sellingDecreasesToNegative() {
+        val items = listOf(Item("foo", 0, 1))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(-1, app.items[0].sellIn)
+
+    }
+    @Test
+    fun qualityNotBelowZeroNegativeSellin() {
+        val items = listOf(Item("foo", -10, 1))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(0, app.items[0].quality)
+
+    }
+    @Test
+    fun qualityNotBelowZeroPosSellin() {
+        val items = listOf(Item("foo", 10, 1))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(0, app.items[0].quality)
+
+    }
+    @Test
+    fun qualityDegradesTwiceAsFast() {
+        val items = listOf(Item("foo", -10, 10))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(8, app.items[0].quality)
+    }
+    @Test
+    fun qualityDegradesTwiceAsFast2() {
+        val items = listOf(Item("foo", 0, 10))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(8, app.items[0].quality)
+    }
+    @Test
+    fun qualityNotMoreThan50() {
+        val items = listOf(Item("foo", 0, 60))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(50, app.items[0].quality)
+    }
+    @Test
+    fun sulfarasQualityAlway80() {
+        val items = listOf(Item("Sulfuras, Hand of Ragnaros", 0, 60))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(80, app.items[0].quality)
+    }
+
+    @Test
+    fun sulfarasQualityAlway80Again() {
+        val items = listOf(Item("Sulfuras, Hand of Ragnaros", 0, 30))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(80, app.items[0].quality)
+    }
+    @Test
+    fun agedBrieIncreases() {
+        val items = listOf(Item("Aged Brie", 10, 30))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(31, app.items[0].quality)
+    }
+    @Test
+    fun agedBrieDoesNotIncreaseOver50() {
+        val items = listOf(Item("Aged Brie", 10, 50))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(50, app.items[0].quality)
+    }
+    @Test
+    fun agedBrieDoesNotIncreaseOver50AfterSellin() {
+        val items = listOf(Item("Aged Brie", 0, 49))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(50, app.items[0].quality)
+    }
+
+    @Test
+    fun agedBrieDoesNotIncreaseTwiceFasterAfterSellin() {
+        val items = listOf(Item("Aged Brie", 0, 40))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(42, app.items[0].quality)
+    }
+
+
+    @Test
+    fun agedBrieNotBelowZero() {
+        val items = listOf(Item("Aged Brie", 0, 49))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(50, app.items[0].quality)
+    }
+
+    @Test
+    fun concertZeroAfterSellin() {
+        val items = listOf(Item("Backstage passes to a TAFKAL80ETC concert", 0, 49))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(0, app.items[0].quality)
+    }
+    @Test
+    fun concertIncreaseBefore10DaysBeforeSellin() {
+        val items = listOf(Item("Backstage passes to a TAFKAL80ETC concert", 20, 40))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(41, app.items[0].quality)
+    }
+    @Test
+    fun concertIncreasesTwice10to5DaysBeforeSellin() {
+        val items = listOf(Item("Backstage passes to a TAFKAL80ETC concert", 10, 40))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(42, app.items[0].quality)
+    }
+
+    @Test
+    fun concertIncreasesThrice5DaysBeforeSellin() {
+        val items = listOf(Item("Backstage passes to a TAFKAL80ETC concert", 5, 40))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(43, app.items[0].quality)
+    }
+
+    @Test
+    fun conjuredItemsBeforeSellin() {
+        val items = listOf(Item("Conjured Mnan cake", 5, 40))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(38, app.items[0].quality)
+    }
+
+    @Test
+    fun conjuredItemsAfterSellin() {
+        val items = listOf(Item("Conjured Mana Cake", 0, 40))
+        val app = GildedRose(items)
+        app.updateQuality()
+        assertEquals(36, app.items[0].quality)
+    }
 }