gildedrose --测试

gildedRose/src/app.js

+import { GildedRose } from './gilded-rose'
+import { Item } from './item'
+
+const items = [
+  new Item('+5 Dexterity Vest', 10, 20), //
+  new Item('Aged Brie', 2, 0), //
+  new Item('Elixir of the Mongoose', 5, 7), //
+  new Item('Sulfuras, Hand of Ragnaros', 0, 80), //
+  new Item('Sulfuras, Hand of Ragnaros', -1, 80),
+  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),
+  new Item('Backstage passes to a TAFKAL80ETC concert', 1, 20),
+  // this conjured item does not work properly yet
+  new Item('Conjured Mana Cake', 3, 6),
+]
+
+const app = new GildedRose(items)
+const days = 3
+const result = []
+
+result.push('OMGHAI')
+for (let i = 0; i < days; i++) {
+  result.push(`-------- day ${i} --------`)
+  result.push('name, sellIn, quality')
+  for (const item of items) {
+    result.push(item.toString())
+  }
+  result.push('')
+  app.update_quality()
+}
+
+console.log(result.join('\n'))

gildedRose/src/gilded-rose.js

+export class GildedRose {
+  items
+
+  constructor(items) {
+    this.items = items
+  }
+
+  
+
+  update_quality() {
+    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) {
+          if (this.items[i].name != 'Sulfuras, Hand of Ragnaros') {
+            this.items[i].quality = this.items[i].quality - 1
+          }
+        }
+      } else {
+        if (this.items[i].quality < 50) {
+          this.items[i].quality = this.items[i].quality + 1
+          if (
+            this.items[i].name == 'Backstage passes to a TAFKAL80ETC concert'
+          ) {
+            if (this.items[i].sell_in < 11) {
+              if (this.items[i].quality < 50) {
+                this.items[i].quality = this.items[i].quality + 1
+              }
+            }
+            if (this.items[i].sell_in < 6) {
+              if (this.items[i].quality < 50) {
+                this.items[i].quality = this.items[i].quality + 1
+              }
+            }
+          }
+        }
+      }
+      if (this.items[i].name != 'Sulfuras, Hand of Ragnaros') {
+        this.items[i].sell_in = this.items[i].sell_in - 1
+      }
+      if (this.items[i].sell_in < 0) {
+        if (this.items[i].name != 'Aged Brie') {
+          if (
+            this.items[i].name != 'Backstage passes to a TAFKAL80ETC concert'
+          ) {
+            if (this.items[i].quality > 0) {
+              if (this.items[i].name != 'Sulfuras, Hand of Ragnaros') {
+                this.items[i].quality = this.items[i].quality - 1
+              }
+            }
+          } else {
+            this.items[i].quality =
+              this.items[i].quality - this.items[i].quality
+          }
+        } else {
+          if (this.items[i].quality < 50) {
+            this.items[i].quality = this.items[i].quality + 1
+          }
+        }
+      }
+    }
+  }
+}

gildedRose/src/gilded-rose.test.js

+import { GildedRose } from './gilded-rose'
+import { Item } from './item'
+
+describe('GildedRoseTest', () => {
+  it('foo', () => {
+    const items = [new Item('foo', 1, 5)]
+
+    const app = new GildedRose(items)
+    app.update_quality()
+
+    expect(app.items[0].name).toEqual('foo')
+    expect(app.items[0].quality).toEqual(4)
+    expect(app.items[0].sell_in).toEqual(0)
+  })
+})

gildedRose/src/item.js

+export class Item {
+  name
+  sell_in
+  quality
+
+  constructor(name, sell_in, quality) {
+    this.name = name
+    this.sell_in = sell_in
+    this.quality = quality
+  }
+
+  toString() {
+    return `${this.name}, ${this.sell_in}, ${this.quality}`
+  }
+}