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1 // Copyright 2014 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Flags: --harmony-array-includes | |
6 | |
7 // Ported from | 5 // Ported from |
8 // https://github.com/tc39/Array.prototype.includes/blob/master/test/number-this
.js | 6 // https://github.com/tc39/Array.prototype.includes/blob/master/test/number-this
.js |
9 // using https://www.npmjs.org/package/test262-to-mjsunit | 7 // using https://www.npmjs.org/package/test262-to-mjsunit |
10 | 8 |
11 // Array.prototype.includes should use ToObject on this, so that when called | 9 // Array.prototype.includes should use ToObject on this, so that when called |
12 // with a number, it picks up numeric properties from Number.prototype (even in | 10 // with a number, it picks up numeric properties from Number.prototype (even in |
13 // strict mode) | 11 // strict mode) |
14 (function() { | 12 (function() { |
15 "use strict"; | 13 "use strict"; |
16 | 14 |
17 Number.prototype[0] = "a"; | 15 Number.prototype[0] = "a"; |
18 Number.prototype[1] = "b"; | 16 Number.prototype[1] = "b"; |
19 | 17 |
20 Object.defineProperty(Number.prototype, 2, { | 18 Object.defineProperty(Number.prototype, 2, { |
21 get: function() { | 19 get: function() { |
22 assertEquals("object", typeof this); | 20 assertEquals("object", typeof this); |
23 return "c"; | 21 return "c"; |
24 } | 22 } |
25 }); | 23 }); |
26 | 24 |
27 Number.prototype.length = 3; | 25 Number.prototype.length = 3; |
28 assertTrue(Array.prototype.includes.call(5, "a")); | 26 assertTrue(Array.prototype.includes.call(5, "a")); |
29 assertTrue(Array.prototype.includes.call(5, "b")); | 27 assertTrue(Array.prototype.includes.call(5, "b")); |
30 assertTrue(Array.prototype.includes.call(5, "c")); | 28 assertTrue(Array.prototype.includes.call(5, "c")); |
31 assertFalse(Array.prototype.includes.call(5, "d")); | 29 assertFalse(Array.prototype.includes.call(5, "d")); |
32 })(); | 30 })(); |
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