test262/test/suite/ch15/15.2/15.2.3/15.2.3.7/15.2.3.7-6-a-185.js

/// 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.
/**
 * @path ch15/15.2/15.2.3/15.2.3.7/15.2.3.7-6-a-185.js
 * @description Object.defineProperties - TypeError is thrown if 'O' is an Array, 'P' is an array index named property,[[Writable]] attribute of the length property in 'O' is false, value of 'P' is bigger than value of the length property in 'O'  (15.4.5.1 step 4.b)
 */


function testcase() {
        var arr = [1, 2, 3];

        Object.defineProperty(arr, "length", {
            writable: false
        });

        try {
            Object.defineProperties(arr, {
                "4": {
                    value: "abc"
                }
            });

            return false;
        } catch (e) {
            return e instanceof TypeError && arr[0] === 1 && arr[1] === 2 &&
                arr[2] === 3 && !arr.hasOwnProperty("3") && !arr.hasOwnProperty("4");
        }
    }
runTestCase(testcase);