From eabc5727c2d717e07b47264dc9f11de2a904b89c Mon Sep 17 00:00:00 2001
From: thiwanka-aux <47382911+thiwanka-aux@users.noreply.github.com>
Date: Mon, 20 Sep 2021 14:14:36 +0530
Subject: [PATCH] Added tc :  quality should degrades twice as fast Added fn :
 common func for update Quality of the items

---
 TypeScript/test/gilded-rose.spec.ts | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/TypeScript/test/gilded-rose.spec.ts b/TypeScript/test/gilded-rose.spec.ts
index 57287f39..dd60c57d 100644
--- a/TypeScript/test/gilded-rose.spec.ts
+++ b/TypeScript/test/gilded-rose.spec.ts
@@ -1,6 +1,8 @@
 import { expect } from 'chai';
 import { Item, GildedRose } from '../app/gilded-rose';
 
+const updateQuality = (dataset:Item[]) => new GildedRose(dataset).updateQuality();
+
 describe('Gilded Rose', function () {
 
     // quality of the normal items degrades by 1
@@ -10,8 +12,7 @@ describe('Gilded Rose', function () {
             new Item('item 2', 45, 21),
         ]
 
-        const gildedRose = new GildedRose(dataset);
-        const result = gildedRose.updateQuality();
+        const result = updateQuality(dataset);
 
         expect(result[0].name).to.equal('item 1');
         expect(result[0].sellIn).to.equal(30);
@@ -21,4 +22,23 @@ describe('Gilded Rose', function () {
         expect(result[1].sellIn).to.equal(44);
         expect(result[1].quality).to.equal(20);
     });
+
+    // Once the sell by date has passed, Quality degrades twice as fast
+    it('quality should degrades twice as fast', function() {
+        const dataset = [
+            new Item('item 1', 0, 10),
+            new Item('item 2', -5, 17),
+        ]
+
+        const result = updateQuality(dataset);
+
+        expect(result[0].name).to.equal('item 1');
+        expect(result[0].sellIn).to.equal(-1);
+        expect(result[0].quality).to.equal(8);
+
+        expect(result[1].name).to.equal('item 2');
+        expect(result[1].sellIn).to.equal(-6);
+        expect(result[1].quality).to.equal(15);
+    });
+
 });