test262/test/built-ins/Object/defineProperty/15.2.3.6-4-360-3.js

44 lines
1.2 KiB
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.6-4-360-3
description: >
ES5 Attributes - Updating data property 'P' whose attributes are
[[Writable]]: false, [[Enumerable]]: true, [[Configurable]]: true
to an accessor property, 'O' is the global object (8.12.9 - step
9.b.i)
includes:
- propertyHelper.js
- fnGlobalObject.js
---*/
var obj = fnGlobalObject();
try {
Object.defineProperty(obj, "prop", {
value: 2010,
writable: false,
enumerable: true,
configurable: true
});
var desc1 = Object.getOwnPropertyDescriptor(obj, "prop");
function getFunc() {
return 20;
}
Object.defineProperty(obj, "prop", {
get: getFunc
});
var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
assert(desc1.hasOwnProperty("value"));
assert(desc2.hasOwnProperty("get"));
assert.sameValue(desc2.enumerable, true);
assert.sameValue(desc2.configurable, true);
assert.sameValue(obj.prop, 20);
assert.sameValue(typeof desc2.set, "undefined");
assert.sameValue(desc2.get, getFunc);
} finally {
delete obj.prop;
}