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ES5Harness.registerTest({

    id: "15.4.4.22-4-12",

    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.22/15.4.4.22-4-12.js",

    description: "Array.prototype.reduceRight - 'callbackfn' is a function",

    test: function testcase() {

        var initialValue = 0;
        function callbackfn(accum, val, idx, obj) {
            accum += val;
            return accum;
        }

        return 20 === [11, 9].reduceRight(callbackfn, initialValue);
    },

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

});