How to use regex inside objectContaining - jestjs

Question

Essentially trying to test the result of a function that contains 3 irrelevant string properties (irrelevant to this question). But a 4th property that is a ISO 8601 string that gets created when the function gets executed. I have no way of knowing what this exact value will be, so I want to test the property via regex. Usually I'd do something like this (which would work but not as clean):
expect(desiredProperty).toMatch(ISOPattern); // ISOPattern = regex i made that works
But doing it this way would mean i need to write this expect for every single property, whereas something like this is more clean and easier to read:
expect(result).toEqual(
expect.objectContaining({
id: mockEmail,
otpPassword: mockOtpPassword,
expire: 1000 * 60 * 60,
expire_at: expect.toMatch(ISOPattern), // NOT WORKING, FAILS
})
);
So I am wondering, is doing something like the above possible at all? I could just not check that property in my expect.objectContaining function, and add another expect to do what i mentioned above. But again, wondering if I could have the best of both worlds.

Answer 1

Not sure if I formatted my post right but essentially this is what I ended up doing (i mentioned this in the OP):
expect(result).toEqual(
expect.objectContaining({
id: mockEmail,
otpPassword: mockOtpPassword,
expire: 1000 * 60 * 60
})
);
expect(result.expire_at).toMatch(ISOPattern);
So the idea here was to get rid of the extra expect call (if you notice here I am checking against the same object result, but I wont know the value of the date and its not important anyways so I just want to check some regex I wrote (whether this works or not is irrelevant although the regex works for sure), and somehow do the regex check inside the expect.objectContaining function, but I dont think I did a good job at formatting my question right so thats probably on me.
Open to anyones help if they see a way to do what im talking about.
The code in this solution is what I am using now, the question I am trying to ask is if theres a better way to do this. The regex working is not relevant, although I know 100% it does work. I did not provide this regex because its literally not what I am asking or relevant to the solution I am seeking.