// Copyright (c) 2012 Ecma International. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es5id: 15.2.3.6-4-192 description: > Object.defineProperty - 'O' is an Array, 'name' is an array index named property, 'name' is own data property that overrides an inherited data property, test TypeError is thrown on updating the [[Configurable]] attribute from false to true (15.4.5.1 step 4.c) ---*/ var arrObj = []; assert.throws(TypeError, function() { Object.defineProperty(Array.prototype, "0", { value: 11, configurable: true }); Object.defineProperty(arrObj, "0", { value: 12, configurable: false }); Object.defineProperty(arrObj, "0", { configurable: true }); }); assert.sameValue(Array.prototype[0], 11, 'Array.prototype[0]'); assert.sameValue(arrObj[0], 12, 'arrObj[0]'); reportCompare(0, 0);