From 02df1d974cf83667ab0caff0b1aee1f6e5c43b74 Mon Sep 17 00:00:00 2001
From: Ovi Trif <ovi.artist@gmail.com>
Date: Fri, 5 Oct 2018 23:23:45 +0200
Subject: [PATCH] Add unit tests for quality of Aged Brie

---
 src/test/kotlin/com/gildedrose/QualityTest.kt | 26 +++++++++++++++++++
 texttest/specs.txt                            |  6 ++---
 2 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/src/test/kotlin/com/gildedrose/QualityTest.kt b/src/test/kotlin/com/gildedrose/QualityTest.kt
index 8453c9ff..d79b76de 100644
--- a/src/test/kotlin/com/gildedrose/QualityTest.kt
+++ b/src/test/kotlin/com/gildedrose/QualityTest.kt
@@ -85,4 +85,30 @@ class QualityTest {
         val expectedQuality = (initialItemQuality - days * 2).coerceAtLeast(0)
         assertThat(item.quality).isEqualTo(expectedQuality)
     }
+
+    @Test
+    fun givenAgedBrie_afterAnyNumberOfDays_shouldIncreaseQualityByNumberOfDays() {
+        val days = generateRandomNumber()
+        val item = Item("Aged Brie", generateRandomNumber(), (0..50).shuffled().last())
+        val initialItemQuality = item.quality
+        val app = GildedRose(arrayOf(item))
+
+        app.advanceTimeBy(days)
+
+        val expectedQuality = (initialItemQuality + days).coerceAtMost(50)
+        assertThat(item.quality).isEqualTo(expectedQuality)
+    }
+
+    @Test
+    fun givenBackstagePass_afterAnyNumberOfDays_shouldIncreaseQualityByNumberOfDays() {
+        val days = generateRandomNumber()
+        val item = Item("Backstage passes to a TAFKAL80ETC concert", generateRandomNumber(), (0..50).shuffled().last())
+        val initialItemQuality = item.quality
+        val app = GildedRose(arrayOf(item))
+
+        app.advanceTimeBy(days)
+
+        val expectedQuality = (initialItemQuality + days).coerceAtMost(50)
+        assertThat(item.quality).isEqualTo(expectedQuality)
+    }
 }
diff --git a/texttest/specs.txt b/texttest/specs.txt
index 2eba86aa..679d77d4 100644
--- a/texttest/specs.txt
+++ b/texttest/specs.txt
@@ -1,13 +1,13 @@
 SPECS
     LOGIC
         # - sellIn decreases every day
-        - Item.quality
+        # - Item.quality
             # - is >= 0 && <= 50
             # - decrements with number of days until sellIn is 0 then with the double of it
-        - Sulfuras
+        # - Sulfuras
             # sellIn = 0 // doesnt change
             # quality is 80 and does not decrease
-        - AgedBrie increases in quality
+        # - AgedBrie increases in quality
         - BackstagePasses
             increases in quality like AgedBrie
                 sellIn <= 0 - quality = 0