test262/test/built-ins/Object/defineProperty/15.2.3.6-4-28.js

29 lines
689 B
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.6-4-28
description: >
Object.defineProperty - 'name' is own accessor property that
overrides an inherited data property (8.12.9 step 1)
---*/
var proto = {};
Object.defineProperty(proto, "foo", {
value: 11,
configurable: true
});
var ConstructFun = function() {};
ConstructFun.prototype = proto;
var obj = new ConstructFun();
Object.defineProperty(obj, "foo", {
get: function() {},
configurable: false
});
assert.throws(TypeError, function() {
Object.defineProperty(obj, "foo", {
configurable: true
});
});