1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.6-4-381
description: >
ES5 Attributes - fail to update the data property ([[Writable]] is
false, [[Enumerable]] is false, [[Configurable]] is false) to an
accessor property
---*/
var obj = {};
Object.defineProperty(obj, "prop", {
value: 2010,
writable: false,
enumerable: false,
configurable: false
});
var propertyDefineCorrect = obj.hasOwnProperty("prop");
var desc1 = Object.getOwnPropertyDescriptor(obj, "prop");
function getFunc() {
return 20;
}
assert.throws(TypeError, function() {
Object.defineProperty(obj, "prop", {
get: getFunc
});
});
var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
assert(propertyDefineCorrect, 'propertyDefineCorrect !== true');
assert.sameValue(desc1.value, 2010, 'desc1.value');
assert.sameValue(obj.prop, 2010, 'obj.prop');
assert.sameValue(typeof desc2.get, "undefined", 'typeof desc2.get');
|