categorize tests and add new ones

js-jest/test/gilded_rose.test.js

@@ -1,25 +1,22 @@
 const {Shop, Item} = require("../src/gilded_rose");
+
 const gildedRose = new Shop([
     new Item("+5 Dexterity Vest", 10, 20),
     new Item("Aged Brie", 2, 0),
-    new Item("Sulfuras, Hand of Ragnaros", 0, 80),
+    new Item("Sulfuras, Hand of Ragnaros", 0, 35),
     new Item("Backstage passes to a TAFKAL80ETC concert", 15, 20),
-    new Item("Backstage passes to a TAFKAL80ETC concert", 10, 49),
-    new Item("Backstage passes to a TAFKAL80ETC concert", 5, 49),
-
-    // This Conjured item does not work properly yet
+    new Item("Backstage passes to a TAFKAL80ETC concert", 10, 45),
+    new Item("Backstage passes to a TAFKAL80ETC concert", 5, 32),
     new Item("Conjured Mana Cake", 3, 6),
+    new Item("Expired Pears", -1, 11),
+    new Item("Overpriced Trinket", 10, 55),
+    new Item("Conjured Mana Cake", -3, 6),
   ]);
 
-describe("Initial state", function () {
-  it("number of items should equal 8", function () {
-    expect(gildedRose.items.length).toBe(8);
-  });
-});
+const items = gildedRose.updateQuality();
 
 describe("After one updateQuality call", function() {
-  const items = gildedRose.updateQuality();
-
+  
   it("Miscellaneous item should have decremented sellIn by 1", function() {
     expect(items[0].sellIn).toBe(9);
   });
@@ -28,22 +25,37 @@ describe("After one updateQuality call", function() {
     expect(items[0].quality).toBe(19);
   });
 
-  it("Aged Brie should have decremented sellIn by 1", function() {
+  it("Expired item should have decremented quality by 2", function () {
+    expect(items[7].quality).toBe(9);
+  });
+
+  it("Overpriced item should have reset quality to 50", function () {
+    expect(items[8].quality).toBe(50);
+  });
+
+});
+
+describe("After one updateQuality call, Aged Brie", function () {
+  it("should have decremented sellIn by 1", function () {
     expect(items[1].sellIn).toBe(1);
   });
 
-  it("Aged Brie should have incremented quality by 1", function() {
+  it("should have incremented quality by 1", function () {
     expect(items[1].quality).toBe(1);
   });
+});
 
-  it("Sulfuras should have same sellIn", function () {
+describe("After one updateQuality call, Sulfuras", function () {
+  it("should have same sellIn", function () {
     expect(items[2].sellIn).toBe(0);
   });
 
-  it("Sulfuras should have same quality", function () {
-    expect(items[2].quality).toBe(80);
+  it("should have same quality", function () {
+    expect(items[2].quality).toBe(35);
   });
+});
 
+describe("After one updateQuality call", function () {
   it("First backstage pass should have decremented sellIn by 1", function () {
     expect(items[3].sellIn).toBe(14);
   });
@@ -57,7 +69,7 @@ describe("After one updateQuality call", function() {
   });
 
   it("Second backstage pass should have incremented quality by 2", function () {
-    expect(items[4].quality).toBe(51);
+    expect(items[4].quality).toBe(47);
   });
 
   it("Third backstage pass should have decremented sellIn by 1", function () {
@@ -65,17 +77,20 @@ describe("After one updateQuality call", function() {
   });
 
   it("Third backstage pass should have incremented quality by 3", function () {
-    expect(items[5].quality).toBe(52);
+    expect(items[5].quality).toBe(35);
   });
-
-  it("Conjured item should have decremented sellIn by 1", function () {
-    expect(items[5].sellIn).toBe(2);
-  });
-
-  it("Conjured item pass should have decremented quality by 2", function () {
-    expect(items[5].quality).toBe(4);
-  });
-
 });
 
+describe("After one updateQuality call, Conjured item", function () {
+  it("should have decremented sellIn by 1", function () {
+    expect(items[6].sellIn).toBe(2);
+  });
 
+  it("should have decremented quality by 2", function () {
+    expect(items[6].quality).toBe(4);
+  });
+
+  it("should have decremented quality by 4 if expired", function () {
+    expect(items[9].quality).toBe(2);
+  });
+});