test262/test/built-ins/Object/preventExtensions/15.2.3.10-3-1.js

17 lines
518 B
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.10-3-1
description: >
Object.preventExtensions - Object.isExtensible(arg) returns false
if arg is the returned object
---*/
var obj = {};
var preCheck = Object.isExtensible(obj);
Object.preventExtensions(obj);
assert(preCheck, 'preCheck !== true');
assert.sameValue(Object.isExtensible(obj), false, 'Object.isExtensible(obj)');