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| 1 // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 assertThrows(function() { |
| 6 Object.getOwnPropertyDescriptor(null, 'x'); |
| 7 }, TypeError); |
| 8 |
| 9 |
| 10 assertThrows(function() { |
| 11 Object.getOwnPropertyDescriptor(undefined, 'x'); |
| 12 }, TypeError); |
| 13 |
| 14 |
| 15 assertEquals({ |
| 16 configurable: false, |
| 17 enumerable: false, |
| 18 value: 3, |
| 19 writable: false, |
| 20 }, Object.getOwnPropertyDescriptor('abc', 'length')); |
| 21 |
| 22 |
| 23 assertEquals({ |
| 24 configurable: false, |
| 25 enumerable: true, |
| 26 value: 'a', |
| 27 writable: false, |
| 28 }, Object.getOwnPropertyDescriptor('abc', 0)); |
| 29 |
| 30 |
| 31 assertSame(undefined, Object.getOwnPropertyDescriptor(42, 'x')); |
| 32 assertSame(undefined, Object.getOwnPropertyDescriptor(true, 'x')); |
| 33 assertSame(undefined, Object.getOwnPropertyDescriptor(false, 'x')); |
| 34 assertSame(undefined, Object.getOwnPropertyDescriptor(Symbol(), 'x')); |
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