1 // Copyright 2009 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 // Test ES5 section 15.2.3.4 Object.getOwnPropertyNames. 29 30 // Check simple cases. 31 var obj = { a: 1, b: 2}; 32 var propertyNames = Object.getOwnPropertyNames(obj); 33 propertyNames.sort(); 34 assertEquals(2, propertyNames.length); 35 assertEquals("a", propertyNames[0]); 36 assertEquals("b", propertyNames[1]); 37 38 var obj = { a: function(){}, b: function(){} }; 39 var propertyNames = Object.getOwnPropertyNames(obj); 40 propertyNames.sort(); 41 assertEquals(2, propertyNames.length); 42 assertEquals("a", propertyNames[0]); 43 assertEquals("b", propertyNames[1]); 44 45 // Check slow case 46 var obj = { a: 1, b: 2, c: 3 }; 47 delete obj.b; 48 var propertyNames = Object.getOwnPropertyNames(obj) 49 propertyNames.sort(); 50 assertEquals(2, propertyNames.length); 51 assertEquals("a", propertyNames[0]); 52 assertEquals("c", propertyNames[1]); 53 54 // Check that non-enumerable properties are being returned. 55 var propertyNames = Object.getOwnPropertyNames([1, 2]); 56 propertyNames.sort(); 57 assertEquals(3, propertyNames.length); 58 assertEquals("0", propertyNames[0]); 59 assertEquals("1", propertyNames[1]); 60 assertEquals("string", typeof propertyNames[0]); 61 assertEquals("string", typeof propertyNames[1]); 62 assertEquals("length", propertyNames[2]); 63 64 // Check that no proto properties are returned. 65 var obj = { foo: "foo" }; 66 obj.__proto__ = { bar: "bar" }; 67 propertyNames = Object.getOwnPropertyNames(obj); 68 propertyNames.sort(); 69 assertEquals(1, propertyNames.length); 70 assertEquals("foo", propertyNames[0]); 71 72 // Check that getter properties are returned. 73 var obj = {}; 74 obj.__defineGetter__("getter", function() {}); 75 propertyNames = Object.getOwnPropertyNames(obj); 76 propertyNames.sort(); 77 assertEquals(1, propertyNames.length); 78 assertEquals("getter", propertyNames[0]); 79 80 try { 81 Object.getOwnPropertyNames(4); 82 assertTrue(false); 83 } catch (e) { 84 assertTrue(/on non-object/.test(e)); 85 } 86 87 try { 88 Object.getOwnPropertyNames("foo"); 89 assertTrue(false); 90 } catch (e) { 91 assertTrue(/on non-object/.test(e)); 92 } 93 94 try { 95 Object.getOwnPropertyNames(undefined); 96 assertTrue(false); 97 } catch (e) { 98 assertTrue(/on non-object/.test(e)); 99 } 100 101 try { 102 Object.getOwnPropertyNames(null); 103 assertTrue(false); 104 } catch (e) { 105 assertTrue(/on non-object/.test(e)); 106 } 107
