Validate properties from oneOf

Author: ismaelga

lib/validate.js

@@ -21,6 +21,7 @@ SOFTWARE.
 'use strict';
 
 var ou = require('./objectUtils');
+var alternative = require('./alternative');
 
 var checkNumber = function(schema, instance) {
   var errors = [];
@@ -173,6 +174,9 @@ validator.object = function(schema, instance, context) {
   if (instance == null)
     instance = {};
 
+  var alternativeSchema = alternative.schema(instance, schema, context);
+  schema = alternativeSchema || schema;
+
   if (instance.constructor !== Object)
     result.push({ path: [], errors: ['must be a plain object'] });
   else {