Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1 | // Copyright 2010 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
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| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
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| 14 | // from this software without specific prior written permission. |
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| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 28 | // Tests that Object.defineProperty works correctly on array indices. |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 29 | // Please see http://code.google.com/p/v8/issues/detail?id=619 for details. |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 30 | |
| 31 | var obj = {}; |
| 32 | obj[1] = 42; |
| 33 | assertEquals(42, obj[1]); |
| 34 | Object.defineProperty(obj, '1', {value:10, writable:false}); |
| 35 | assertEquals(10, obj[1]); |
| 36 | |
| 37 | // We should not be able to override obj[1]. |
| 38 | obj[1] = 5; |
| 39 | assertEquals(10, obj[1]); |
| 40 | |
| 41 | // Try on a range of numbers. |
| 42 | for(var i = 0; i < 1024; i++) { |
| 43 | obj[i] = 42; |
| 44 | } |
| 45 | |
| 46 | for(var i = 0; i < 1024; i++) { |
| 47 | Object.defineProperty(obj, i, {value: i, writable:false}); |
| 48 | } |
| 49 | |
| 50 | for(var i = 0; i < 1024; i++) { |
| 51 | assertEquals(i, obj[i]); |
| 52 | } |
| 53 | |
| 54 | for(var i = 0; i < 1024; i++) { |
| 55 | obj[1] = 5; |
| 56 | } |
| 57 | |
| 58 | for(var i = 0; i < 1024; i++) { |
| 59 | assertEquals(i, obj[i]); |
| 60 | } |