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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 // Flags: --harmony-array-includes | |
6 | |
7 // Ported from | |
8 // https://github.com/tc39/Array.prototype.includes/blob/master/test/number-this
.js | |
9 // using https://www.npmjs.org/package/test262-to-mjsunit | |
10 | |
11 // Array.prototype.includes should use ToObject on this, so that when called | |
12 // with a number, it picks up numeric properties from Number.prototype | |
13 (function() { | |
14 Number.prototype[0] = "a"; | |
15 Number.prototype[1] = "b"; | |
16 | |
17 Object.defineProperty(Number.prototype, 2, { | |
18 get: function() { | |
19 assertEquals("object", typeof this); | |
20 return "c"; | |
21 } | |
22 }); | |
23 | |
24 Number.prototype.length = 3; | |
25 assertTrue(Array.prototype.includes.call(5, "a")); | |
26 assertTrue(Array.prototype.includes.call(5, "b")); | |
27 assertTrue(Array.prototype.includes.call(5, "c")); | |
28 assertFalse(Array.prototype.includes.call(5, "d")); | |
29 })(); | |
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