Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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)), []); |