1// Copyright 2015 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28// This is adapted from mjsunit/object-get-own-property-names.js. 29 30 31// Check simple cases. 32var obj = { a: 1, b: 2}; 33var keys = Reflect.ownKeys(obj); 34assertEquals(2, keys.length); 35assertEquals("a", keys[0]); 36assertEquals("b", keys[1]); 37 38var obj = { a: function(){}, b: function(){} }; 39var keys = Reflect.ownKeys(obj); 40assertEquals(2, keys.length); 41assertEquals("a", keys[0]); 42assertEquals("b", keys[1]); 43 44// Check slow case 45var obj = { a: 1, b: 2, c: 3 }; 46delete obj.b; 47var keys = Reflect.ownKeys(obj) 48assertEquals(2, keys.length); 49assertEquals("a", keys[0]); 50assertEquals("c", keys[1]); 51 52// Check that non-enumerable properties are being returned. 53var keys = Reflect.ownKeys([1, 2]); 54assertEquals(3, keys.length); 55assertEquals("0", keys[0]); 56assertEquals("1", keys[1]); 57assertEquals("string", typeof keys[0]); 58assertEquals("string", typeof keys[1]); 59assertEquals("length", keys[2]); 60 61// Check that no proto properties are returned. 62var obj = { foo: "foo" }; 63obj.__proto__ = { bar: "bar" }; 64keys = Reflect.ownKeys(obj); 65assertEquals(1, keys.length); 66assertEquals("foo", keys[0]); 67 68// Check that getter properties are returned. 69var obj = {}; 70obj.__defineGetter__("getter", function() {}); 71keys = Reflect.ownKeys(obj); 72assertEquals(1, keys.length); 73assertEquals("getter", keys[0]); 74 75// Check that implementation does not access Array.prototype. 76var savedConcat = Array.prototype.concat; 77Array.prototype.concat = function() { return []; } 78keys = Reflect.ownKeys({0: 'foo', bar: 'baz'}); 79assertEquals(2, keys.length); 80assertEquals('0', keys[0]); 81assertEquals('bar', keys[1]); 82assertSame(Array.prototype, keys.__proto__); 83Array.prototype.concat = savedConcat; 84 85assertThrows(function() { Reflect.ownKeys(4) }, TypeError); 86assertThrows(function() { Reflect.ownKeys("foo") }, TypeError); 87assertThrows(function() { Reflect.ownKeys(true) }, TypeError); 88 89assertEquals(Reflect.ownKeys(Object(4)), []); 90assertEquals(Reflect.ownKeys(Object("foo")), ["0", "1", "2", "length"]); 91assertEquals(Reflect.ownKeys(Object(true)), []); 92