js/src/tests/test262/ch13/13.2/13.2-17-1.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/test262/ch13/13.2/13.2-17-1.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,55 @@
     1.4 +/// Copyright (c) 2012 Ecma International.  All rights reserved. 
     1.5 +/// Ecma International makes this code available under the terms and conditions set
     1.6 +/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
     1.7 +/// "Use Terms").   Any redistribution of this code must retain the above 
     1.8 +/// copyright and this notice and otherwise comply with the Use Terms.
     1.9 +/**
    1.10 + * @path ch13/13.2/13.2-17-1.js
    1.11 + * @description Function Object has 'constructor' as its own property, it is not enumerable and does not invoke the setter defined on Function.prototype.constructor (Step 17)
    1.12 + */
    1.13 +
    1.14 +
    1.15 +function testcase() {
    1.16 +        var desc = Object.getOwnPropertyDescriptor(Object.prototype, "constructor");
    1.17 +        try {
    1.18 +            var getFunc = function () {
    1.19 +                return 100;
    1.20 +            };
    1.21 +
    1.22 +            var data = "data";
    1.23 +            var setFunc = function (value) {
    1.24 +                data = value;
    1.25 +            };
    1.26 +
    1.27 +            Object.defineProperty(Object.prototype, "constructor", {
    1.28 +                get: getFunc,
    1.29 +                set: setFunc,
    1.30 +                configurable: true
    1.31 +            });
    1.32 +
    1.33 +            var fun = function () {};
    1.34 +
    1.35 +            var verifyValue = false;
    1.36 +            verifyValue = typeof fun.prototype.constructor === "function";
    1.37 +
    1.38 +            var verifyEnumerable = false;
    1.39 +            for (var p in fun.prototype) {
    1.40 +                if (p === "constructor" && fun.prototype.hasOwnProperty("constructor")) {
    1.41 +                    verifyEnumerable = true;
    1.42 +                }
    1.43 +            }
    1.44 +
    1.45 +            var verifyWritable = false;
    1.46 +            fun.prototype.constructor = 12;
    1.47 +            verifyWritable = (fun.prototype.constructor === 12);
    1.48 +
    1.49 +            var verifyConfigurable = false;
    1.50 +            delete fun.prototype.constructor;
    1.51 +            verifyConfigurable = fun.hasOwnProperty("constructor");
    1.52 +
    1.53 +            return verifyValue && verifyWritable && !verifyEnumerable && !verifyConfigurable && data === "data";
    1.54 +        } finally {
    1.55 +            Object.defineProperty(Object.prototype, "constructor", desc);
    1.56 +        }
    1.57 +    }
    1.58 +runTestCase(testcase);

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