test262/test/built-ins/Object/defineProperty/15.2.3.6-4-254.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.

/*---
es5id: 15.2.3.6-4-254
description: >
    Object.defineProperty - 'O' is an Array, 'name' is an array index
    named property, 'name' is accessor property and 'desc' is accessor
    descriptor, and the [[Configurable]] attribute value of 'name' is
    false, test TypeError is not thrown if the [[Set]] field of 'desc'
    is present, and the [[Set]] field of 'desc' and the [[Set]]
    attribute value of 'name' are undefined (15.4.5.1 step 4.c)
includes: [propertyHelper.js]
---*/

        var arrObj = [];

        Object.defineProperty(arrObj, "1", {
            set: undefined
        });
        var hasProperty = arrObj.hasOwnProperty("1");

        Object.defineProperty(arrObj, "1", {
            set: undefined
        });

        var desc = Object.getOwnPropertyDescriptor(arrObj, "1");

        var verifyGet = desc.hasOwnProperty("get") && typeof desc.get === "undefined";

        var verifySet = desc.hasOwnProperty("set") && typeof desc.set === "undefined";

        var verifyEnumerable = false;
        for (var p in arrObj) {
            if (p === "1") {
                verifyEnumerable = true
            }
        }

        var verifyConfigurable = false;
        delete arrObj[1];
        verifyConfigurable = arrObj.hasOwnProperty("1");

        return hasProperty && verifyGet && verifySet && !verifyEnumerable && verifyConfigurable;
    }