| Ben Murdoch | 014dc51 | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2014 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 | assertEquals(1, Array.prototype.fill.length); |
| 6 | |
| 7 | assertArrayEquals([].fill(8), []); |
| 8 | assertArrayEquals([0, 0, 0, 0, 0].fill(), [undefined, undefined, undefined, undefined, undefined]); |
| 9 | assertArrayEquals([0, 0, 0, 0, 0].fill(8), [8, 8, 8, 8, 8]); |
| 10 | assertArrayEquals([0, 0, 0, 0, 0].fill(8, 1), [0, 8, 8, 8, 8]); |
| 11 | assertArrayEquals([0, 0, 0, 0, 0].fill(8, 10), [0, 0, 0, 0, 0]); |
| 12 | assertArrayEquals([0, 0, 0, 0, 0].fill(8, -5), [8, 8, 8, 8, 8]); |
| 13 | assertArrayEquals([0, 0, 0, 0, 0].fill(8, 1, 4), [0, 8, 8, 8, 0]); |
| 14 | assertArrayEquals([0, 0, 0, 0, 0].fill(8, 1, -1), [0, 8, 8, 8, 0]); |
| 15 | assertArrayEquals([0, 0, 0, 0, 0].fill(8, 1, 42), [0, 8, 8, 8, 8]); |
| 16 | assertArrayEquals([0, 0, 0, 0, 0].fill(8, -3, 42), [0, 0, 8, 8, 8]); |
| 17 | assertArrayEquals([0, 0, 0, 0, 0].fill(8, -3, 4), [0, 0, 8, 8, 0]); |
| 18 | assertArrayEquals([0, 0, 0, 0, 0].fill(8, -2, -1), [0, 0, 0, 8, 0]); |
| 19 | assertArrayEquals([0, 0, 0, 0, 0].fill(8, -1, -3), [0, 0, 0, 0, 0]); |
| 20 | assertArrayEquals([0, 0, 0, 0, 0].fill(8, undefined, 4), [8, 8, 8, 8, 0]); |
| 21 | assertArrayEquals([ , , , , 0].fill(8, 1, 3), [, 8, 8, , 0]); |
| 22 | |
| 23 | // If the range is empty, the array is not actually modified and |
| 24 | // should not throw, even when applied to a frozen object. |
| 25 | assertArrayEquals(Object.freeze([1, 2, 3]).fill(0, 0, 0), [1, 2, 3]); |
| 26 | |
| 27 | // Test exceptions |
| 28 | assertThrows('Object.freeze([0]).fill()', TypeError); |
| 29 | assertThrows('Array.prototype.fill.call(null)', TypeError); |
| 30 | assertThrows('Array.prototype.fill.call(undefined)', TypeError); |