test262/test/language/statements/for-in/12.6.4-2.js

41 lines
1.2 KiB
JavaScript

// 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: 12.6.4-2
description: >
The for-in Statement - the values of [[Enumerable]] attributes are
not considered when determining if a property of a prototype
object is shadowed by a previous object on the prototype chain
includes: [runTestCase.js]
---*/
function testcase() {
var proto = {
prop: "enumerableValue"
};
var ConstructFun = function () { };
ConstructFun.prototype = proto;
var child = new ConstructFun();
Object.defineProperty(child, "prop", {
value: "nonEnumerableValue",
enumerable: false
});
var accessedProp = false;
for (var p in child) {
if (p === "prop") {
accessedProp = true;
}
}
return !accessedProp;
}
runTestCase(testcase);