test262/test/built-ins/Object/defineProperty/15.2.3.6-4-42.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: 15.2.3.6-4-42
description: >
Object.defineProperty - 'O' is an Error object that uses Object's
[[GetOwnProperty]] method to access the 'name' property (8.12.9
step 1)
includes: [runTestCase.js]
---*/
function testcase() {
var desc = new Error();
Object.defineProperty(desc, "foo", {
value: 12,
configurable: false
});
try {
Object.defineProperty(desc, "foo", {
value: 11,
configurable: true
});
return false;
} catch (e) {
return e instanceof TypeError && desc.foo === 12;
}
}
runTestCase(testcase);