test/built-ins/Array/prototype/map/15.4.4.19-2-18.js


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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.

/*---
es5id: 15.4.4.19-2-18
description: >
    Array.prototype.map - applied to String object, which implements
    its own property get method
includes: [runTestCase.js]
---*/

function testcase() {
        function callbackfn(val, idx, obj) {
            return parseInt(val, 10) > 1;
        }

        var str = new String("432");
        try {
            String.prototype[3] = "1";
            var testResult = Array.prototype.map.call(str, callbackfn);

            return 3 === testResult.length;
        } finally {
            delete String.prototype[3];
        }
    }
runTestCase(testcase);