z.date() does not work with vi.setSystemTime()

[Its-treason]

When mocking the system, time with vitest (which uses: https://github.com/sinonjs/fake-timers internally) the date parser stops working.

CodeSandbox: https://codesandbox.io/p/sandbox/zen-bartik-gg4nn9

it("runs", () => {
  const dateSchema = z.coerce.date();

  // This Works
  console.log(dateSchema.parse("2023-07-19"));

  vi.setSystemTime(1689775661);

  // This doesn't work
  console.log(dateSchema.parse("2023-07-19"));
});

The second parse throws an Error, even through it worked before with the same value:

ZodError: [
  {
    "code": "invalid_type",
    "expected": "date",
    "received": "object",
    "path": [],
    "message": "Expected date, received object"
  }
]

[JacobWeisenburger]

This seems to have nothing to do with Zod.

https://vitest.dev/api/vi.html#vi-setsystemtime

you need to use vi.useFakeTimers()

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[agos]

fyi the example links are broken