test262/test/built-ins/Object/preventExtensions/15.2.3.10-3-10.js

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// 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.
/*---
2014-07-25 00:41:42 +02:00
es5id: 15.2.3.10-3-10
description: >
Object.preventExtensions - indexed properties cannot be added into
an Error object
includes: [runTestCase.js]
---*/
function testcase() {
var errObj = new Error();
var preCheck = Object.isExtensible(errObj);
Object.preventExtensions(errObj);
errObj[0] = 12;
return preCheck && !errObj.hasOwnProperty("0");
}
runTestCase(testcase);