bun test timeouts are not accurate on Mac and Windows

[paperdave]

What version of Bun is running?

No response

What platform is your computer?

No response

What steps can reproduce the bug?

try something like

import { test, expect } from "bun:test";
import { sleep } from "bun";
test("timeout", async () => {
  await sleep(5001);
});

What is the expected behavior?

the test ALWAYS fails because it takes longer than 5 seconds

What do you see instead?

the test took longer than five seconds, but it passed???? execution, even a nanosecond, should not be longer than the timeout.

Additional information

CI reproduces this after we moved a time like 5001 to 5010 to workaround this bug. the real issue is that the test timeouts are not accurate.

[Jarred-Sumner]

It's not 100% precise and it ends up waiting longer than it should but i'm pretty sure this is more of a windows bug

[paperdave]

cannot reproduce this on linux, but can on mac and windows