bun test should drop-in replace vi.useFakeTimers + vi.setSystemTime + vi.useRealTimers using vitest like it does with jest globals

[NateRadebaugh]

Clear and concise description of the problem

Test file in formatDate.test.ts

import { afterAll, beforeAll, describe, vi } from "vitest";

describe("formatDate", () => {
  beforeAll(() => {
    vi.useFakeTimers();
    vi.setSystemTime(new Date("2021-01-01T18:00:00Z"));
  });

  afterAll(() => {
    vi.useRealTimers();
  });
});

Run:

bun test formatDate

Error:

XXX> bun test formatDate        
bun test v1.1.3 (2615dc74)

XXX\formatDate.test.ts:
2 | import { formatDate } from "XXX/format";
3 | import { afterAll, beforeAll, describe, expect, it, vi } from "vitest";
4 |
5 | describe("formatDate", () => {
6 |   beforeAll(() => {
7 |     vi.useFakeTimers();
        ^
TypeError: vi.useFakeTimers is not a function. (In 'vi.useFakeTimers()', 'vi.useFakeTimers' is undefined)
      at XXX\formatDate.test.ts:7:5
      at XXX\formatDate.test.ts:5:1

 0 pass
 0 fail
Ran 0 tests across 1 files. [107.00ms]

Suggested solution

There's already some magic that occurs within bun test when using jest methods via @jest/globals but it'd be great if the same logic could be extended to include vitest helper methods from vi so we don't need to change our test code in order to run with bun test.

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[NateRadebaugh]

Sorry I meant to open this in the bun repo.

oven-sh/bun#10275