test262/test/built-ins/Object/defineProperties/15.2.3.7-6-a-144.js

36 lines
1.1 KiB
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.7-6-a-144
description: >
Object.defineProperties - 'O' is an Array, 'name' is the length
property of 'O', test the [[Value]] field of 'desc' is an Object
which has an own valueOf method that returns an object and
toString method that returns a string (15.4.5.1 step 3.c)
---*/
var arr = [];
var toStringAccessed = false;
var valueOfAccessed = false;
Object.defineProperties(arr, {
length: {
value: {
toString: function () {
toStringAccessed = true;
return '2';
},
valueOf: function () {
valueOfAccessed = true;
return {};
}
}
}
});
assert.sameValue(arr.length, 2, 'arr.length');
assert(toStringAccessed, 'toStringAccessed !== true');
assert(valueOfAccessed, 'valueOfAccessed !== true');