test262/test/built-ins/Object/defineProperties/15.2.3.7-6-a-116.js

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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-116
description: >
Object.defineProperties - 'O' is an Array, 'P' is the length
property of 'O', the [[Value]] field of 'desc' is absent, test
TypeError is thrown when updating the [[Configurable]] attribute
of the length property from false to true (15.4.5.1 step 3.a.i)
---*/
var arr = [];
assert.throws(TypeError, function() {
Object.defineProperties(arr, {
length: { configurable: true }
});
});