test262/test/built-ins/Object/preventExtensions/15.2.3.10-3-23.js

25 lines
792 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: 15.2.3.10-3-23
description: >
Object.preventExtensions - properties can still be reassigned
after extensions have been prevented
includes: [runTestCase.js]
---*/
function testcase() {
var obj = { prop: 12 };
var preCheck = Object.isExtensible(obj);
Object.preventExtensions(obj);
obj.prop = -1;
return preCheck && obj.prop === -1;
}
runTestCase(testcase);