port typescript approval tests from jest to vitest

TypeScript/test/vitest/approvals.spec.ts

@@ -0,0 +1,54 @@
+import { execSync } from "node:child_process";
+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", () => {
+    execSync(`ts-node test/golden-master-text-test.ts 30`, {
+      stdio: "inherit",
+    });
+
+    expect(gameConsoleOutput).toMatchSnapshot();
+  });
+});