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. 32 var obj = { a: 1, b: 2}; 33 var keys = Reflect.ownKeys(obj); 34 assertEquals(2, keys.length); 35 assertEquals("a", keys[0]); 36 assertEquals("b", keys[1]); 37 38 var obj = { a: function(){}, b: function(){} }; 39 var keys = Reflect.ownKeys(obj); 40 assertEquals(2, keys.length); 41 assertEquals("a", keys[0]); 42 assertEquals("b", keys[1]); 43 44 // Check slow case 45 var obj = { a: 1, b: 2, c: 3 }; 46 delete obj.b; 47 var keys = Reflect.ownKeys(obj) 48 assertEquals(2, keys.length); 49 assertEquals("a", keys[0]); 50 assertEquals("c", keys[1]); 51 52 // Check that non-enumerable properties are being returned. 53 var keys = Reflect.ownKeys([1, 2]); 54 assertEquals(3, keys.length); 55 assertEquals("0", keys[0]); 56 assertEquals("1", keys[1]); 57 assertEquals("string", typeof keys[0]); 58 assertEquals("string", typeof keys[1]); 59 assertEquals("length", keys[2]); 60 61 // Check that no proto properties are returned. 62 var obj = { foo: "foo" }; 63 obj.__proto__ = { bar: "bar" }; 64 keys = Reflect.ownKeys(obj); 65 assertEquals(1, keys.length); 66 assertEquals("foo", keys[0]); 67 68 // Check that getter properties are returned. 69 var obj = {}; 70 obj.__defineGetter__("getter", function() {}); 71 keys = Reflect.ownKeys(obj); 72 assertEquals(1, keys.length); 73 assertEquals("getter", keys[0]); 74 75 // Check that implementation does not access Array.prototype. 76 var savedConcat = Array.prototype.concat; 77 Array.prototype.concat = function() { return []; } 78 keys = Reflect.ownKeys({0: 'foo', bar: 'baz'}); 79 assertEquals(2, keys.length); 80 assertEquals('0', keys[0]); 81 assertEquals('bar', keys[1]); 82 assertSame(Array.prototype, keys.__proto__); 83 Array.prototype.concat = savedConcat; 84 85 assertThrows(function() { Reflect.ownKeys(4) }, TypeError); 86 assertThrows(function() { Reflect.ownKeys("foo") }, TypeError); 87 assertThrows(function() { Reflect.ownKeys(true) }, TypeError); 88 89 assertEquals(Reflect.ownKeys(Object(4)), []); 90 assertEquals(Reflect.ownKeys(Object("foo")), ["0", "1", "2", "length"]); 91 assertEquals(Reflect.ownKeys(Object(true)), []); 92
