WIP: adding Deno version

deno/test/golden-master-text-test.ts

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+import { GildedRose, Item } from "../app/gilded-rose.ts";
+
+console.log("OMGHAI!");
+
+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),
+  // this conjured item does not work properly yet
+  new Item("Conjured Mana Cake", 3, 6),
+];
+
+const gildedRose = new GildedRose(items);
+
+let days: number = 2;
+if (process.argv.length > 2) {
+  days = +process.argv[2];
+}
+
+for (let i = 0; i < days + 1; i++) {
+  console.log("-------- day " + i + " --------");
+  console.log("name, sellIn, quality");
+  items.forEach((element) => {
+    console.log(element.name + ", " + element.sellIn + ", " + element.quality);
+  });
+  console.log();
+  gildedRose.updateQuality();
+}

deno/test/jest/approvals.spec.ts

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+import { Item, GildedRose } from '@/gilded-rose';
+
+/**
+ * This unit test uses [Jest Snapshot](https://goo.gl/fbAQLP).
+ * 
+ * There are two test cases here with different styles:
+ * <li>"foo" is more similar to the unit test from the 'Java' version
+ * <li>"thirtyDays" is more similar to the TextTest from the 'Java' version
+ *
+ * I suggest choosing one style to develop and deleting the other.
+ */
+
+describe('Gilded Rose Approval', () => {
+
+  let gameConsoleOutput: string;
+  let originalConsoleLog: (message: any) => void;
+  let originalProcessArgv: string[]
+
+  function gameConsoleLog(msg: string) {
+    if (msg) {
+      gameConsoleOutput += msg;
+    }
+    gameConsoleOutput += "\n";
+  }
+
+  beforeEach(() => {
+    // prepare capturing console.log to our own gameConsoleLog.
+    gameConsoleOutput = "";
+    originalConsoleLog = console.log;
+    console.log = gameConsoleLog;
+    originalProcessArgv = process.argv;
+  });
+
+  afterEach(() => {
+    // reset original console.log
+    console.log = originalConsoleLog;
+    process.argv = originalProcessArgv;
+  });
+
+  it('should foo', () => {
+    const gildedRose = new GildedRose([new Item('foo', 0, 0)]);
+    const items = gildedRose.updateQuality();
+  
+    expect(items).toMatchSnapshot();
+  });
+
+  it('should thirtyDays', () => {
+    process.argv = ["<node>", "<script", "30"];
+    require('../golden-master-text-test.ts');
+       
+    expect(gameConsoleOutput).toMatchSnapshot();
+  });
+
+});

deno/test/jest/gilded-rose.spec.ts

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+import { Item, GildedRose } from '@/gilded-rose';
+
+describe('Gilded Rose', () => {
+  it('should foo', () => {
+    const gildedRose = new GildedRose([new Item('foo', 0, 0)]);
+    const items = gildedRose.updateQuality();
+    expect(items[0].name).toBe('fixme');
+  });
+});

deno/test/mocha/gilded-rose.spec.ts

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+import { expect } from 'chai';
+import { Item, GildedRose } from '@/gilded-rose';
+
+describe('Gilded Rose', () => {
+  it('should foo', () => {
+    const gildedRose = new GildedRose([new Item('foo', 0, 0)]);
+    const items = gildedRose.updateQuality();
+    expect(items[0].name).to.equal('fixme');
+  });
+});

deno/test/vitest/gilded-rose.spec.ts

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+import { Item, GildedRose } from '@/gilded-rose';
+
+describe('Gilded Rose', () => {
+  it('should foo', () => {
+    const gildedRose = new GildedRose([new Item('foo', 0, 0)]);
+    const items = gildedRose.updateQuality();
+    expect(items[0].name).toBe('fixme');
+  });
+});