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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.
/*---
description: >
Array.prototype.map - deleting property of prototype causes
prototype index property not to be visited on an Array
includes: [runTestCase.js]
---*/
function testcase() {
function callbackfn(val, idx, obj) {
return idx === 1 && typeof val === "undefined";
}
var arr = [0, , 2];
Object.defineProperty(arr, "0", {
get: function () {
delete Array.prototype[1];
return 0;
},
configurable: true
});
try {
Array.prototype[1] = 1;
var testResult = arr.map(callbackfn);
return testResult.length === 3 && typeof testResult[1] === "undefined";
} finally {
delete Array.prototype[1];
}
}
runTestCase(testcase);
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