test262/test/built-ins/Object/defineProperty/15.2.3.6-4-42.js

32 lines
820 B
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.6-4-42
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);