test262/test/built-ins/Object/defineProperties/15.2.3.7-6-a-120.js

31 lines
918 B
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// Ecma International makes this code available under the terms and conditions set
// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
// "Use Terms"). Any redistribution of this code must retain the above
// copyright and this notice and otherwise comply with the Use Terms.
/*---
es5id: 15.2.3.7-6-a-120
description: >
Object.defineProperties - 'O' is an Array, 'P' is the length
property of 'O', the [[Value]] field of 'desc' is absent, test
updating the [[Writable]] attribute of the length property from
true to false (15.4.5.1 step 3.a.i)
includes: [propertyHelper.js]
---*/
var arr = [];
Object.defineProperties(arr, {
length: { writable: false }
});
verifyEqualTo(arr, "length", 0);
verifyNotWritable(arr, "length");
verifyNotEnumerable(arr, "length");
verifyNotConfigurable(arr, "length");