JSTests/test262/test/language/function-code/10.4.3-1-102gs.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 10.4.3-1-102gs
description: >
    Strict Mode - checking 'this' (strict anonymous function passed as
    arg to String.prototype.replace)
---*/

var x = 3;
if ( ("ab".replace("b", (function () { 
                                "use strict";
                                return function () {
                                    x = this;
                                    return "a";
                                }
                           })())!=="aa") || (x!==undefined)) {
     throw "'this' had incorrect value!";
}