test/built-ins/String/prototype/trim/15.5.4.20-2-41.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: 15.5.4.20-2-41
description: >
    String.prototype.trim - 'this' is an object which has an own
    toString and valueOf method.
includes: [runTestCase.js]
---*/

function testcase() {
        var toStringAccessed = false;
        var valueOfAccessed = false;
        var obj = {
            toString: function () {
                toStringAccessed = true;
                return "abc";
            },
            valueOf: function () {
                valueOfAccessed = true;
                return "cef";
            }
        };
        return (String.prototype.trim.call(obj) === "abc") && !valueOfAccessed && toStringAccessed;
    }
runTestCase(testcase);