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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 ch15/15.4/15.4.4/15.4.4.15/15.4.4.15-2-4.js
* @description Array.prototype.lastIndexOf when 'length' is own data property that overrides an inherited data property on an Array
*/
function testcase() {
var targetObj = {};
var arrProtoLen;
try {
arrProtoLen = Array.prototype.length;
Array.prototype.length = 0;
return [0, targetObj, 2].lastIndexOf(targetObj) === 1;
} finally {
Array.prototype.length = arrProtoLen;
}
}
runTestCase(testcase);
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