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