// Copyright (c) 2012 Ecma International. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es5id: 15.2.3.6-4-410 description: > ES5 Attributes - Failed to add a property to an object when the object's prototype has a property with the same name and [[Writable]] set to false (JSON) includes: [propertyHelper.js] ---*/ Object.defineProperty(Object.prototype, "prop", { value: 1001, writable: false, enumerable: false, configurable: true }); assert(!JSON.hasOwnProperty("prop")); verifyNotWritable(JSON, "prop", "noCheckOwnProp"); assert.sameValue(JSON.prop, 1001); reportCompare(0, 0);