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32 lines
986 B
JavaScript
32 lines
986 B
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: 15.2.3.6-4-405
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description: >
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ES5 Attributes - Failed to add a property to an object when the
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object's object has a property with same name and [[Writable]]
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attribute is set to false (Number instance)
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includes: [propertyHelper.js]
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---*/
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try {
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Object.defineProperty(Number.prototype, "prop", {
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value: 1001,
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writable: false,
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enumerable: false,
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configurable: true
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});
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var numObj = new Number();
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assert(!numObj.hasOwnProperty("prop"));
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verifyNotWritable(numObj, "prop", "noCheckOwnProp");
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} finally {
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delete Number.prototype.prop;
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}
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