test262/test/built-ins/Object/defineProperty/15.2.3.6-4-564.js

47 lines
1.2 KiB
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: 15.2.3.6-4-564
description: >
ES5 Attributes - fail to update [[Configurable]] attribute of
accessor property ([[Get]] is a Function, [[Set]] is a Function,
[[Enumerable]] is false, [[Configurable]] is false) to different
value
includes: [propertyHelper.js]
---*/
var obj = {};
var getFunc = function () {
return 1001;
};
var verifySetFunc = "data";
var setFunc = function (value) {
verifySetFunc = value;
};
Object.defineProperty(obj, "prop", {
get: getFunc,
set: setFunc,
enumerable: false,
configurable: false
});
var desc1 = Object.getOwnPropertyDescriptor(obj, "prop");
try {
Object.defineProperty(obj, "prop", {
configurable: true
});
$ERROR("Expected TypeError");
} catch (e) {
assert(e instanceof TypeError);
assert.sameValue(desc1.configurable, false);
verifyNotConfigurable(obj, "prop");
}