Nested fields ?

[mathieutu]

Hi,
Thanks for your work and this package.

I would like to validate objects with a lot of nested structure, like this:

{
	foos: [{ bar: '...' }, { bar: '...' }, { bar: '...' }, ...]
}

Do you recommend a particular way to write the validation tests with vest?

I tought about something basic like this, but maybe is there a better way?

const validate = vest.create('form', (formData) => {
	formData.foos.forEach((fooObject) => {
		test('bar', 'Must be between 2 and 10 chars', () => {
	        enforce(fooObject.bar).longerThanOrEquals(2).shorterThan(10);
	    });
	})
});

Thanks,
Mathieu.

[ealush]

Hey @mathieutu, thanks for reaching out!

The problem of dynamically generated fields, or fiels queried from the server does come up every once in a while, and the way you handle it is the most straightforward way of doing it. There aren't any drawbacks to using it. It's quite simple to maintain and debug, and I should probably add it to the docs as well. Thank you for bringing that up!

As a side note, in the future I plan on adding test.each() that would behave similarly to jest's test.each function. It would have a built-in integration with vest.only so that skipped fields won't be iterated over to begin with - so you can save some precious runtime perf.