LayoutTests/ietestcenter/Javascript/TestCases/15.4.4.15-5-7.js

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ES5Harness.registerTest({

    id: "15.4.4.15-5-7",

    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.15/15.4.4.15-5-7.js",

    description: "Array.prototype.lastIndexOf when value of 'fromIndex' is a number (value is 0)",

    test: function testcase() {

        return [0, 100].lastIndexOf(100, 0) === -1 && // verify fromIndex is not more than 0
            [200, 0].lastIndexOf(200, 0) === 0; // verify fromIndex is not less than 0
    },

    precondition: function prereq() {
        return fnExists(Array.prototype.lastIndexOf);
    }

});