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27
28// Tests that Object.defineProperty works correctly on array indices.
29// Please see http://code.google.com/p/v8/issues/detail?id=619 for details.
30
31var obj = {};
32obj[1] = 42;
33assertEquals(42, obj[1]);
34Object.defineProperty(obj, '1', {value:10, writable:false});
35assertEquals(10, obj[1]);
36
37// We should not be able to override obj[1].
38obj[1] = 5;
39assertEquals(10, obj[1]);
40
41// Try on a range of numbers.
42for(var i = 0; i < 1024; i++) {
43  obj[i] = 42;
44}
45
46for(var i = 0; i < 1024; i++) {
47  Object.defineProperty(obj, i, {value: i, writable:false});
48}
49
50for(var i = 0; i < 1024; i++) {
51  assertEquals(i, obj[i]);
52}
53
54for(var i = 0; i < 1024; i++) {
55  obj[1] = 5;
56}
57
58for(var i = 0; i < 1024; i++) {
59  assertEquals(i, obj[i]);
60}
61