test/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-b-i-23.js


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

/*---
es5id: 15.4.4.15-8-b-i-23
description: Array.prototype.lastIndexOf - This object is the global object
includes:
    - runTestCase.js
    - fnGlobalObject.js
---*/

function testcase() {

        var targetObj = {};
        try {
            var oldLen = fnGlobalObject().length;
            fnGlobalObject()[0] = targetObj;
            fnGlobalObject()[100] = "100";
            fnGlobalObject()[200] = "200";
            fnGlobalObject().length = 200;
            return 0 === Array.prototype.lastIndexOf.call(fnGlobalObject(), targetObj) &&
                100 === Array.prototype.lastIndexOf.call(fnGlobalObject(), "100") &&
                -1 === Array.prototype.lastIndexOf.call(fnGlobalObject(), "200");
        } finally {
            delete fnGlobalObject()[0];
            delete fnGlobalObject()[100];
            delete fnGlobalObject()[200];
            fnGlobalObject().length = oldLen;
        }
    }
runTestCase(testcase);