// Copyright (c) 2012 Ecma International. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es5id: 15.2.3.6-4-250 description: > Object.defineProperty - 'O' is an Array, 'name' is an array index named property, 'name' is data property and 'desc' is data descriptor, and the [[Configurable]] attribute value of 'name' is false, test TypeError is thrown if the [[Writable]] attribute value of 'name' is false, and the [[Value]] field of 'desc' and the [[Value]] attribute value of 'name' are two booleans with different values (15.4.5.1 step 4.c) includes: [propertyHelper.js] ---*/ var arrObj = []; Object.defineProperty(arrObj, "1", { value: false }); try { Object.defineProperty(arrObj, "1", { value: true }); $ERROR("Expected an exception."); } catch (e) { verifyEqualTo(arrObj, "1", false); verifyNotWritable(arrObj, "1"); verifyNotEnumerable(arrObj, "1"); verifyNotConfigurable(arrObj, "1"); if (!(e instanceof TypeError)) { $ERROR("Expected TypeError, got " + e); } }