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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 ch15/15.2/15.2.3/15.2.3.6/15.2.3.6-4-171.js
* @description Object.defineProperty - 'O' is an Array, 'name' is the length property of 'O', the [[Value]] field of 'desc' is less than value of the length property, test the [[Configurable]] attribute of an inherited data property with large index named in 'O' can't stop deleting index named properties (15.4.5.1 step 3.l.ii)
*/
function testcase() {
var arrObj = [0, 1];
try {
Array.prototype[1] = 2; // Not setting the [[Configurable]] attribute of property "1" to false here, since Array.prototype is a global object, and non-configurbale property can't revert to configurable
Object.defineProperty(arrObj, "length", {
value: 1
});
return arrObj.length === 1 && !arrObj.hasOwnProperty("1");
} finally {
delete Array.prototype[1];
}
}
runTestCase(testcase);
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