Bad behavior of Joi.object().concat() #534
Description
I looked through the issues (both open and closed) and could not find one describing this behavior. Here is the script to reproduce:
var Joi = require('joi');
var a = Joi.object().keys({
foo: Joi.string()
});
var b = Joi.object().keys({
foo: Joi.number()
});
var ab = a.concat(b);
console.log(Joi.validate({ foo: 'bar' }, ab));
console.log(Joi.validate({ foo: 1 }, ab));I get:
{ error:
{ [ValidationError: foo must be a number]
name: 'ValidationError',
details: [ [Object] ],
_object: { foo: 'bar' },
annotate: [Function] },
value: { foo: 'bar' } }
{ error:
{ [ValidationError: foo must be a string]
name: 'ValidationError',
details: [ [Object] ],
_object: { foo: 1 },
annotate: [Function] },
value: { foo: 1 } }
I know this use case seems a bit stupid, but it might be good to be more defensive.
This issue is present in joi 5.1.0 installed with npm.