mirror of https://github.com/tc39/test262.git
29 lines
737 B
JavaScript
29 lines
737 B
JavaScript
// Copyright (c) 2012 Ecma International. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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es5id: 15.2.3.6-4-410
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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 prototype has a property with the same name and
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[[Writable]] set to false (JSON)
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includes: [propertyHelper.js]
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---*/
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try {
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Object.defineProperty(Object.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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assert(!JSON.hasOwnProperty("prop"));
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verifyNotWritable(JSON, "prop", "noCheckOwnProp");
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assert.sameValue(JSON.prop, 1001);
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} finally {
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delete Object.prototype.prop;
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}
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