在 Bun 的测试运行器中设置系统时间

import { test, expect, setSystemTime } from "bun:test";

test("party like it's 1999", () => {
  const date = new Date("1999-01-01T00:00:00.000Z");
  setSystemTime(date); // 现在时间是 1999 年 1 月 1 日

  const now = new Date();
  expect(now.getFullYear()).toBe(1999);
  expect(now.getMonth()).toBe(0);
  expect(now.getDate()).toBe(1);
});

import { test, expect, beforeAll, setSystemTime } from "bun:test";

beforeAll(() => {
  const date = new Date("1999-01-01T00:00:00.000Z");
  setSystemTime(date); // 现在时间是 1999 年 1 月 1 日
});

// 测试代码...

import { test, expect, beforeAll, setSystemTime } from "bun:test";

setSystemTime(); // 重置为实际时间