test262/test/built-ins/Object/defineProperty/15.2.3.6-4-124.js

// 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: 15.2.3.6-4-124
description: >
    Object.defineProperty - 'O' is an Array, 'name' 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 arrObj = [];

Object.defineProperty(arrObj, "length", {
    writable: false
});
verifyEqualTo(arrObj, "length", 0);

verifyNotWritable(arrObj, "length");

verifyNotEnumerable(arrObj, "length");

verifyNotConfigurable(arrObj, "length");