Date range validation

I’m really excited about this library, however I found an issue that I’m not sure how to deal with. I’d like to be able to validate a date range, but it doesn’t seem to work. I’ve written two tests to show what does and does not work for me.

test('validate a number range', () => {
        return yup
            .object({
                start: yup.number().required(),
                end: yup.number().when('start', (st, schema) => {
                    return schema.min(st);
                }),
            })
            .validate({
                start: 5,
                end: 3,
            })
            .catch((e) => {
                expect(e.message).toEqual(
                    'end must be greater than or equal to 5', // works :)
                );
            });
});

    test('validates a date range', () => {
        return yup
            .object({
                start: yup.date().required(),
                end: yup.date().when('start', (st, schema) => {
                    return schema.min(st);
                }),
            })
            .validate({
                start: moment().toDate(),
                end: moment()
                    .subtract(1, 'days')
                    .toDate(),
            })
            .catch((e) => {
                expect(e).toEqual(1); // this line is never executed
            });
    });

The first test works, but I get an error message RangeError: Maximum call stack size exceeded on the second test. Is there something I can do differently to validate a date range?

[andrewzamojc-pd]

Unlike the documentation, I got this working by using yup instead of schema.

end: yup.date().when('start', (st, schema) => {
    return yup.date().min(st);
})

[SPeshov]

Here are two solutions that worked for me.