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
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
// Copyright 2014 Ecma International. All rights reserved.
// See LICENSE or https://github.com/tc39/test262/blob/master/LICENSE
/*---
info: Array.prototype.concat uses [[Get]] on 'length' to determine array length
es5id: 15.4.4.4_A3_T2
description: >
checking whether non-ownProperties are seen, copied by Array.prototype.concat: Array.prototype[1]
---*/
var a = [0];
if (a.length !== 1) {
$ERROR("expected a.length === 1, actually " + a.length);
}
a.length = 3;
if (a[1] !== undefined) {
$ERROR("expected a[1] === undefined, actually " + a[1]);
}
if (a[2] !== undefined) {
$ERROR("expected a[2] === undefined, actually " + a[2]);
}
Array.prototype[2] = 2;
if (a[1] !== undefined) {
$ERROR("expected a[1] === undefined, actually " + a[1]);
}
if (a[2] !== 2) {
$ERROR("expected a[2] === 2, actually " + a[2]);
}
if (a.hasOwnProperty('1') !== false) {
$ERROR("a.hasOwnProperty('1') === false, actually " + a.hasOwnProperty('1'));
}
if (a.hasOwnProperty('2') !== false) {
$ERROR("a.hasOwnProperty('2') === false, actually " + a.hasOwnProperty('2'));
}
var b = a.concat();
if (b.length !== 3) {
$ERROR("expected b.length === 3, actually " + b.length);
}
if (b[0] !== 0) {
$ERROR("expected b[0] === 0, actually " + b[0]);
}
if (b[1] !== undefined) {
$ERROR("expected b[1] === undefined, actually " + b[1]);
}
if (b[2] !== 2) {
$ERROR("expected b[2] === 2, actually " + b[2]);
}
if (b.hasOwnProperty('1') !== false) {
$ERROR("expected b.hasOwnProperty('1') === false, actually " + b.hasOwnProperty('1'));
}
if (b.hasOwnProperty('2') !== true) {
$ERROR("expected b.hasOwnProperty('2') === true, actually " + b.hasOwnProperty('2'));
}
|
