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

35 lines
925 B
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
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
---*/
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;
}
}
assert.sameValue(accessedProp, false, 'accessedProp');