how to validate that a field is the same as another?

How can I have rules to validate that the user wrote the same account and confirmedAccount?

const inst = yup.object({
  account: yup.string().min(7).required(),
  confirmedAccount: yup.string().oneOf([yup.ref('account')])
 });
inst.validate({ account: '123456', confirmedAccount: '234' }, {
	abortEarly: false
}).then(function() { 
	console.log('ok', arguments);
})
.catch(function(error) {
	console.log('failed', error);
});

console.log(inst.cast({ account: '123456', confirmedAccount: '234' }));

Looks like yup.ref only works for casting data, not for validations? So, how can I validate it?

[csantos1113]

FYI: I created this extended validation that looks working:

function equalTo(ref, msg) {
	return this.test({
		name: 'equalTo',
		exclusive: false,
    message: msg || '${path} must be the same as ${reference}',
		params: {
			reference: ref.path
		},
		test: function(value) {
      return value === this.resolve(ref) 
		}
	})
};

yup.addMethod(yup.string, 'equalTo', equalTo);


 const inst = yup.object({
   account: yup.string().min(7).required(),
   confirmedAccount: yup.string().equalTo(yup.ref('account'))
 });

inst.validate({ account: '1234567', confirmedAccount: '12345678' }, {
	abortEarly: false
}).then(function() { 
	console.log('ok', arguments);
})
.catch(function(error) {
	console.log('failed', error);
})

[Yaojian]

https://github.com/jquense/yup/issues/49#issuecomment-393100970 has a solution:

password: yup.string().required('Password is required'),
confirmPassword: yup.string().oneOf([yup.ref('password'), null], "Passwords don't match").required('Confirm Password is required'),