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// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.6-4-456
description: >
ES5 Attributes - fail to update [[Configurable]] attribute of
accessor property ([[Get]] is undefined, [[Set]] is undefined,
[[Enumerable]] is false, [[Configurable]] is false) to different
value
includes: [propertyHelper.js]
---*/
var obj = {};
Object.defineProperty(obj, "prop", {
get: undefined,
set: undefined,
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);
var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
assert.sameValue(desc1.configurable, false);
assert.sameValue(desc2.configurable, false);
verifyNotConfigurable(obj, "prop");
assert(obj.hasOwnProperty("prop"));
}
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