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/// Copyright (c) 2012 Ecma International. All rights reserved.
/// Ecma International makes this code available under the terms and conditions set
/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
/// "Use Terms"). Any redistribution of this code must retain the above
/// copyright and this notice and otherwise comply with the Use Terms.
/**
* @path ch15/15.2/15.2.3/15.2.3.6/15.2.3.6-4-192.js
* @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)
*/
function testcase() {
try {
Object.defineProperty(Array.prototype, "0", {
value: 11,
configurable: true
});
var arrObj = [];
Object.defineProperty(arrObj, "0", {
value: 12,
configurable: false
});
Object.defineProperty(arrObj, "0", {
configurable: true
});
return false;
} catch (e) {
return e instanceof TypeError && Array.prototype[0] === 11 && arrObj[0] === 12;
} finally {
delete Array.prototype[0];
}
}
runTestCase(testcase);
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