testjoi.js

'use strict';

var Joi = require('joi');


var schema = Joi.object({
  password: Joi.string(),
  confirm: Joi.object().keys({
    password: Joi.string()
  })
}).assert('confirm.password', Joi.ref('password'));

var data = {
  password: '123456',
  confirm: {
    password: '1234567'
  }
};
/*
 Should return path 'password' or 'confirm.password'
 instead it returns path: 'value'
*/
console.log(Joi.validate(data, schema).error.details[0]);