mirror of
https://github.com/tc39/test262.git
synced 2025-10-31 03:34:08 +01:00
34 lines
977 B
JavaScript
34 lines
977 B
JavaScript
// Copyright (c) 2012 Ecma International. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
/*---
|
|
es5id: 15.2.3.7-6-a-168
|
|
description: >
|
|
Object.defineProperties - 'O' is an Array, 'P' is the length
|
|
property of 'O', the [[Value]] field of 'desc' is less than value
|
|
of the length property, test the [[Configurable]] attribute of
|
|
own data property with large index named in 'O' that overrides
|
|
inherited data property can stop deleting index named properties
|
|
(15.4.5.1 step 3.l.ii)
|
|
---*/
|
|
|
|
var arr = [0, 1];
|
|
|
|
assert.throws(TypeError, function() {
|
|
Object.defineProperty(arr, "1", {
|
|
configurable: false
|
|
});
|
|
|
|
Array.prototype[1] = 2;
|
|
|
|
Object.defineProperties(arr, {
|
|
length: {
|
|
value: 1
|
|
}
|
|
});
|
|
});
|
|
assert.sameValue(arr.length, 2, 'arr.length');
|
|
assert(arr.hasOwnProperty("1"), 'arr.hasOwnProperty("1") !== true');
|
|
assert.sameValue(arr[0], 0, 'arr[0]');
|
|
assert.sameValue(arr[1], 1, 'arr[1]');
|