mirror of https://github.com/tc39/test262.git
30 lines
877 B
JavaScript
30 lines
877 B
JavaScript
// Copyright (c) 2012 Ecma International. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
/*---
|
|
es5id: 15.2.3.6-4-117
|
|
description: >
|
|
Object.defineProperty - 'O' is an Array, test the length property
|
|
of 'O' is own data property that overrides an inherited data
|
|
property (15.4.5.1 step 1)
|
|
---*/
|
|
|
|
var arrObj = [0, 1, 2];
|
|
var arrProtoLen;
|
|
|
|
assert.throws(TypeError, function() {
|
|
arrProtoLen = Array.prototype.length;
|
|
Array.prototype.length = 0;
|
|
|
|
|
|
Object.defineProperty(arrObj, "2", {
|
|
configurable: false
|
|
});
|
|
|
|
Object.defineProperty(arrObj, "length", {
|
|
value: 1
|
|
});
|
|
});
|
|
assert.sameValue(arrObj.length, 3, 'arrObj.length');
|
|
assert.sameValue(Array.prototype.length, 0, 'Array.prototype.length');
|