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38 lines
1.1 KiB
JavaScript
38 lines
1.1 KiB
JavaScript
// Copyright (c) 2012 Ecma International. All rights reserved.
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// Ecma International makes this code available under the terms and conditions set
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// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
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// "Use Terms"). Any redistribution of this code must retain the above
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// copyright and this notice and otherwise comply with the Use Terms.
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/*---
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es5id: 15.2.3.6-4-447
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description: >
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ES5 Attributes - success to update [[Configurable]] attribute of
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accessor property ([[Get]] is undefined, [[Set]] is undefined,
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[[Enumerable]] is false, [[Configurable]] is true) to different
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value
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includes: [propertyHelper.js]
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---*/
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var obj = {};
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Object.defineProperty(obj, "prop", {
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get: undefined,
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set: undefined,
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enumerable: false,
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configurable: true
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});
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var desc1 = Object.getOwnPropertyDescriptor(obj, "prop");
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Object.defineProperty(obj, "prop", {
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configurable: false
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});
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var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
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assert.sameValue(desc1.configurable, true);
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assert.sameValue(desc2.configurable, false);
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verifyNotConfigurable(obj, "prop");
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assert(obj.hasOwnProperty("prop"));
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