Add Gilded Rose kata for JavaScript with Jest

js-jest/test/gilded_rose.test.js

@@ -0,0 +1,9 @@
+const {Shop, Item} = require("../src/gilded_rose");
+
+describe("Gilded Rose", function() {
+  it("should foo", function() {
+    const gildedRose = new Shop([new Item("foo", 0, 0)]);
+    const items = gildedRose.updateQuality();
+    expect(items[0].name).toBe("fixme");
+  });
+});