From 4d82127c010a98e43c92a7bf8bab2de864d74b4d Mon Sep 17 00:00:00 2001
From: Pabasara Jayawardhana <pabasara@360development.net>
Date: Sun, 19 Sep 2021 06:56:01 +0530
Subject: [PATCH] Added update quality logic

---
 js-jest/src/gilded_rose.js       |  8 ++++++--
 js-jest/test/gilded_rose.test.js | 15 +++++++++++----
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/js-jest/src/gilded_rose.js b/js-jest/src/gilded_rose.js
index 6cb6f773..079f0739 100644
--- a/js-jest/src/gilded_rose.js
+++ b/js-jest/src/gilded_rose.js
@@ -1,5 +1,5 @@
 class Item {
-  constructor(name, sellIn, quality){
+  constructor(name, sellIn, quality) {
     this.name = name;
     this.sellIn = sellIn;
     this.quality = quality;
@@ -12,15 +12,19 @@ class ItemUpdater {
   }
 
   updateQuality() {
+    if (this.item.quality > 0 && this.item.quality <= 50) {
+      this.item.quality = this.item.quality - 1;
+    }
     return this.item;
   }
 }
 
 class Shop {
-  constructor(items=[]){
+  constructor(items = []) {
     this.items = items;
   }
   updateQuality() {
+
     for (let i = 0; i < this.items.length; i++) {
       if (this.items[i].name != 'Aged Brie' && this.items[i].name != 'Backstage passes to a TAFKAL80ETC concert') {
         if (this.items[i].quality > 0) {
diff --git a/js-jest/test/gilded_rose.test.js b/js-jest/test/gilded_rose.test.js
index 027d1edc..7999dde9 100644
--- a/js-jest/test/gilded_rose.test.js
+++ b/js-jest/test/gilded_rose.test.js
@@ -9,9 +9,16 @@ describe("Gilded Rose", function() {
 });
 
 describe("Gilded Rose check common rules", function () {
-  it("should foo", function () {
-    const gildedRose = new ItemUpdater(new Item("Aged Brie", 10, 0));
+  it("Item quality should decrease by one", function () {
+    const gildedRose = new ItemUpdater(new Item("+5 Dexterity Vest", 10, 20));
     const item = gildedRose.updateQuality();
-    expect(item.quality).toBe(10);
+    expect(item.quality).toBe(19);
   });
-});
+
+  it("Item quality should not decrease by one", function () {
+    const gildedRose = new ItemUpdater(new Item("+5 Dexterity Vest", 10, 0));
+    const item = gildedRose.updateQuality();
+    expect(item.quality).toBe(0);
+  });
+
+});
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