1fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Copyright 2013 the V8 project authors. All rights reserved. 2fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// 4fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Redistribution and use in source and binary forms, with or without 5fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// modification, are permitted provided that the following conditions 6fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// are met: 7fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// 1. Redistributions of source code must retain the above copyright 8fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// notice, this list of conditions and the following disclaimer. 9fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// 2. Redistributions in binary form must reproduce the above copyright 10fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// notice, this list of conditions and the following disclaimer in the 11fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// documentation and/or other materials provided with the distribution. 12fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// 13fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 24fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgdescription("Test to ensure correct behaviour of Object.defineProperty"); 25fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 26fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("JSON.stringify(Object.getOwnPropertyDescriptor(Object.defineProperty({}, 'foo', {value:1}), 'foo'))", 27fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org "JSON.stringify({value: 1, writable: false, enumerable: false, configurable: false})"); 28fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("JSON.stringify(Object.getOwnPropertyDescriptor(Object.defineProperty({}, 'foo', {}), 'foo'))", 29fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org "JSON.stringify({writable: false, enumerable: false, configurable: false})"); 30fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("JSON.stringify(Object.getOwnPropertyDescriptor(Object.defineProperty({}, 'foo', {get:undefined}), 'foo'))", 31fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org "JSON.stringify({enumerable: false, configurable: false})"); 32fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("JSON.stringify(Object.getOwnPropertyDescriptor(Object.defineProperty({}, 'foo', {value:1, writable: false}), 'foo'))", 33fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org "JSON.stringify({value: 1, writable: false, enumerable: false, configurable: false})"); 34fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("JSON.stringify(Object.getOwnPropertyDescriptor(Object.defineProperty({}, 'foo', {value:1, writable: true}), 'foo'))", 35fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org "JSON.stringify({value: 1, writable: true, enumerable: false, configurable: false})"); 36fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("JSON.stringify(Object.getOwnPropertyDescriptor(Object.defineProperty({}, 'foo', {value:1, enumerable: false}), 'foo'))", 37fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org "JSON.stringify({value: 1, writable: false, enumerable: false, configurable: false})"); 38fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("JSON.stringify(Object.getOwnPropertyDescriptor(Object.defineProperty({}, 'foo', {value:1, enumerable: true}), 'foo'))", 39fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org "JSON.stringify({value: 1, writable: false, enumerable: true, configurable: false})"); 40fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("JSON.stringify(Object.getOwnPropertyDescriptor(Object.defineProperty({}, 'foo', {value:1, configurable: false}), 'foo'))", 41fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org "JSON.stringify({value: 1, writable: false, enumerable: false, configurable: false})"); 42fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("JSON.stringify(Object.getOwnPropertyDescriptor(Object.defineProperty({}, 'foo', {value:1, configurable: true}), 'foo'))", 43fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org "JSON.stringify({value: 1, writable: false, enumerable: false, configurable: true})"); 44fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("JSON.stringify(Object.getOwnPropertyDescriptor(Object.defineProperty([1,2,3], 'foo', {value:1, configurable: true}), 'foo'))", 45fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org "JSON.stringify({value: 1, writable: false, enumerable: false, configurable: true})"); 46fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("Object.getOwnPropertyDescriptor(Object.defineProperty([1,2,3], '1', {value:'foo', configurable: true}), '1').value", "'foo'"); 47fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("a=[1,2,3], Object.defineProperty(a, '1', {value:'foo', configurable: true}), a[1]", "'foo'"); 48fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("Object.getOwnPropertyDescriptor(Object.defineProperty([1,2,3], '1', {get:getter, configurable: true}), '1').get", "getter"); 49fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty([1,2,3], '1', {get:getter, configurable: true})[1]", "'called getter'"); 50fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 51fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty()"); 52fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(null)"); 53fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty('foo')"); 54fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty({})"); 55fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty({}, 'foo')"); 56fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty({}, 'foo', {get:undefined, value:true}).foo"); 57fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeTrue("Object.defineProperty({get foo() { return true; } }, 'foo', {configurable:false}).foo"); 58fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 59fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgfunction createUnconfigurableProperty(o, prop, writable, enumerable) { 60fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org writable = writable || false; 61fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org enumerable = enumerable || false; 62fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org return Object.defineProperty(o, prop, {value:1, configurable:false, writable: writable, enumerable: enumerable}); 63fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org} 64fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(createUnconfigurableProperty({}, 'foo'), 'foo', {configurable: true})"); 65fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(createUnconfigurableProperty({}, 'foo'), 'foo', {writable: true})"); 66fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(createUnconfigurableProperty({}, 'foo'), 'foo', {enumerable: true})"); 67fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(createUnconfigurableProperty({}, 'foo', false, true), 'foo', {enumerable: false}), 'foo'"); 68fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 69fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("JSON.stringify(Object.getOwnPropertyDescriptor(Object.defineProperty(createUnconfigurableProperty({}, 'foo', true), 'foo', {writable: false}), 'foo'))", 70fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org "JSON.stringify({value: 1, writable: false, enumerable: false, configurable: false})"); 71fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 72fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty({}, 'foo', {value:1, get: function(){}})"); 73fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty({}, 'foo', {value:1, set: function(){}})"); 74fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty({}, 'foo', {writable:true, get: function(){}})"); 75fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty({}, 'foo', {writable:true, set: function(){}})"); 76fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty({}, 'foo', {get: null})"); 77fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty({}, 'foo', {set: null})"); 78fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgfunction getter(){ throw "called getter"; } 79fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgfunction getter1(){ throw "called getter1"; } 80fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgfunction setter(){ throw "called setter"; } 81fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgfunction setter1(){ throw "called setter1"; } 82fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty({}, 'foo', {set: setter}).foo='test'", "'called setter'"); 83fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {set: setter}), 'foo', {set: setter1})"); 84fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {set: setter}), 'foo', {get: getter1})"); 85fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {set: setter}), 'foo', {value: 1})"); 86fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {set: setter, configurable: true}), 'foo', {set: setter1}).foo='test'", "'called setter1'"); 87fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {set: setter, configurable: true}), 'foo', {get: getter1}).foo", "'called getter1'"); 88fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeTrue("Object.defineProperty(Object.defineProperty({}, 'foo', {set: setter, configurable: true}), 'foo', {value: true}).foo"); 89fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeTrue("'foo' in Object.defineProperty(Object.defineProperty({}, 'foo', {set: setter, configurable: true}), 'foo', {writable: true})"); 90fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeUndefined("Object.defineProperty(Object.defineProperty({}, 'foo', {set: setter, configurable: true}), 'foo', {writable: true}).foo"); 91fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty({}, 'foo', {get: getter}).foo", "'called getter'"); 92fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {get: getter}), 'foo', {get: getter1})"); 93fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {get: getter}), 'foo', {set: setter1})"); 94fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {get: getter, configurable: true}), 'foo', {get: getter1}).foo", "'called getter1'"); 95fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {get: getter, configurable: true}), 'foo', {set: setter1}).foo='test'", "'called setter1'"); 96fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeTrue("Object.defineProperty(Object.defineProperty({}, 'foo', {get: getter, configurable: true}), 'foo', {value: true}).foo"); 97fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeUndefined("Object.defineProperty(Object.defineProperty({}, 'foo', {get: getter, configurable: true}), 'foo', {writable: true}).foo"); 98fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeTrue("'foo' in Object.defineProperty(Object.defineProperty({}, 'foo', {get: getter, configurable: true}), 'foo', {writable: true})"); 99fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 100fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {value: 1}), 'foo', {set: setter1})"); 101fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {value: 1, configurable: true}), 'foo', {set: setter1}).foo='test'", "'called setter1'"); 102fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {value: 1}), 'foo', {get: getter1})"); 103fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {value: 1}), 'foo', {set: setter1})"); 104fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {value: 1, configurable: true}), 'foo', {get: getter1}).foo", "'called getter1'"); 105fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {value: 1, configurable: true}), 'foo', {set: setter1}).foo='test'", "'called setter1'"); 106fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 107fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Should be able to redefine an non-writable property, if it is configurable. 108fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("Object.defineProperty(Object.defineProperty({}, 'foo', {value: 1, configurable: true, writable: false}), 'foo', {value: 2, configurable: true, writable: true}).foo", "2"); 109fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("Object.defineProperty(Object.defineProperty({}, 'foo', {value: 1, configurable: true, writable: false}), 'foo', {value: 2, configurable: true, writable: false}).foo", "2"); 110fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 111fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Should be able to redefine an non-writable, non-configurable property, with the same value and attributes. 112fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("Object.defineProperty(Object.defineProperty({}, 'foo', {value: 1, configurable: false, writable: false}), 'foo', {value: 1, configurable: false, writable: false}).foo", "1"); 113fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 114fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Should be able to redefine a configurable accessor, with the same or with different attributes. 115fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Check the accessor function changed. 116fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("Object.defineProperty(Object.defineProperty({}, 'foo', {get: function() { return 1; }, configurable: true, enumerable: true}), 'foo', {get: function() { return 2; }, configurable: true, enumerable: false}).foo", "2"); 117fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("Object.defineProperty(Object.defineProperty({}, 'foo', {get: function() { return 1; }, configurable: true, enumerable: false}), 'foo', {get: function() { return 2; }, configurable: true, enumerable: false}).foo", "2"); 118fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Check the attributes changed. 119fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeFalse("var result = false; var o = Object.defineProperty(Object.defineProperty({}, 'foo', {get: function() { return 1; }, configurable: true, enumerable: true}), 'foo', {get: function() { return 2; }, configurable: true, enumerable: false}); for (x in o) result = true; result"); 120fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeTrue("var result = false; var o = Object.defineProperty(Object.defineProperty({}, 'foo', {get: function() { return 1; }, configurable: true, enumerable: false}), 'foo', {get: function() { return 2; }, configurable: true, enumerable: true}); for (x in o) result = true; result"); 121fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 122fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Should be able to define an non-configurable accessor. 123fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeUndefined("var o = Object.defineProperty({}, 'foo', {get: function() { return 1; }, configurable: true}); delete o.foo; o.foo"); 124fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {get: function() { return 1; }, configurable: false}); delete o.foo; o.foo", '1'); 125fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("Object.defineProperty(Object.defineProperty({}, 'foo', {get: function() { return 1; }, configurable: true}), 'foo', {value:2}).foo", "2"); 126fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {get: function() { return 1; }, configurable: false}), 'foo', {value:2}).foo"); 127fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 128fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Defining a data descriptor over an accessor should result in a read only property. 129fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty(Object.defineProperty({}, 'foo', {get: function() { return 1; }, configurable: true}), 'foo', {value:2}); o.foo = 3; o.foo", "2"); 130fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 131fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Trying to redefine a non-configurable property as configurable should throw. 132fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty({}, 'foo', {value: 1}), 'foo', {value:2, configurable: true})"); 133fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("Object.defineProperty(Object.defineProperty([], 'foo', {value: 1}), 'foo', {value:2, configurable: true})"); 134fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 135fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Test an object with a getter setter. 136fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Either accessor may be omitted or replaced with undefined, or both may be replaced with undefined. 137fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}); o.foo", '42') 138fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}); o.foo = 42; o.result;", '42'); 139fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {get:undefined, set:function(x){this.result = x;}}); o.foo", 'undefined') 140fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {get:undefined, set:function(x){this.result = x;}}); o.foo = 42; o.result;", '42'); 141fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {set:function(x){this.result = x;}}); o.foo", 'undefined') 142fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {set:function(x){this.result = x;}}); o.foo = 42; o.result;", '42'); 143fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}, set:undefined}); o.foo", '42') 144fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}, set:undefined}); o.foo = 42; o.result;", 'undefined'); 145fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}}); o.foo", '42') 146fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}}); o.foo = 42; o.result;", 'undefined'); 147fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {get:undefined, set:undefined}); o.foo", 'undefined') 148fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty({}, 'foo', {get:undefined, set:undefined}); o.foo = 42; o.result;", 'undefined'); 149fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Test replacing or removing either the getter or setter individually. 150fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {get:function(){return 13;}}); o.foo", '13') 151fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {get:function(){return 13;}}); o.foo = 42; o.result;", '42') 152fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {get:undefined}); o.foo", 'undefined') 153fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {get:undefined}); o.foo = 42; o.result;", '42') 154fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {set:function(){this.result = 13;}}); o.foo", '42') 155fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {set:function(){this.result = 13;}}); o.foo = 42; o.result;", '13') 156fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {set:undefined}); o.foo", '42') 157fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {set:undefined}); o.foo = 42; o.result;", 'undefined') 158fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 159fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Repeat of the above, in strict mode. 160fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Either accessor may be omitted or replaced with undefined, or both may be replaced with undefined. 161fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}); o.foo", '42') 162fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}); o.foo = 42; o.result;", '42'); 163fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty({}, 'foo', {get:undefined, set:function(x){this.result = x;}}); o.foo", 'undefined') 164fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty({}, 'foo', {get:undefined, set:function(x){this.result = x;}}); o.foo = 42; o.result;", '42'); 165fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty({}, 'foo', {set:function(x){this.result = x;}}); o.foo", 'undefined') 166fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty({}, 'foo', {set:function(x){this.result = x;}}); o.foo = 42; o.result;", '42'); 167fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}, set:undefined}); o.foo", '42') 168fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("'use strict'; var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}, set:undefined}); o.foo = 42; o.result;"); 169fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}}); o.foo", '42') 170fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("'use strict'; var o = Object.defineProperty({}, 'foo', {get:function(){return 42;}}); o.foo = 42; o.result;"); 171fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty({}, 'foo', {get:undefined, set:undefined}); o.foo", 'undefined') 172fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("'use strict'; var o = Object.defineProperty({}, 'foo', {get:undefined, set:undefined}); o.foo = 42; o.result;"); 173fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Test replacing or removing either the getter or setter individually. 174fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {get:function(){return 13;}}); o.foo", '13') 175fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {get:function(){return 13;}}); o.foo = 42; o.result;", '42') 176fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {get:undefined}); o.foo", 'undefined') 177fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {get:undefined}); o.foo = 42; o.result;", '42') 178fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {set:function(){this.result = 13;}}); o.foo", '42') 179fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {set:function(){this.result = 13;}}); o.foo = 42; o.result;", '13') 180fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("'use strict'; var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {set:undefined}); o.foo", '42') 181fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("'use strict'; var o = Object.defineProperty(Object.defineProperty({foo:1}, 'foo', {get:function(){return 42;}, set:function(x){this.result = x;}}), 'foo', {set:undefined}); o.foo = 42; o.result;") 182fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 183fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgObject.defineProperty(Object.prototype, 0, {get:function(){ return false; }, configurable:true}) 184fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeTrue("0 in Object.prototype"); 185fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeTrue("'0' in Object.prototype"); 186fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgdelete Object.prototype[0]; 187fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 188fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgObject.defineProperty(Object.prototype, 'readOnly', {value:true, configurable:true, writable:false}) 189fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeTrue("var o = {}; o.readOnly = false; o.readOnly"); 190fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("'use strict'; var o = {}; o.readOnly = false; o.readOnly"); 191fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgdelete Object.prototype.readOnly; 192fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 193fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// Check the writable attribute is set correctly when redefining an accessor as a data descriptor. 194fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeFalse("Object.getOwnPropertyDescriptor(Object.defineProperty(Object.defineProperty({}, 'foo', {get: function() { return false; }, configurable: true}), 'foo', {value:false}), 'foo').writable"); 195fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeFalse("Object.getOwnPropertyDescriptor(Object.defineProperty(Object.defineProperty({}, 'foo', {get: function() { return false; }, configurable: true}), 'foo', {value:false, writable: false}), 'foo').writable"); 196fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeTrue("Object.getOwnPropertyDescriptor(Object.defineProperty(Object.defineProperty({}, 'foo', {get: function() { return false; }, configurable: true}), 'foo', {value:false, writable: true}), 'foo').writable"); 197fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 198fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// If array length is read-only, [[Put]] should fail. 199fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeFalse("var a = Object.defineProperty([], 'length', {writable: false}); a[0] = 42; 0 in a;"); 200fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("'use strict'; var a = Object.defineProperty([], 'length', {writable: false}); a[0] = 42; 0 in a;"); 201fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 202fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// If array property is read-only, [[Put]] should fail. 203fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBe("var a = Object.defineProperty([42], '0', {writable: false}); a[0] = false; a[0];", '42'); 204fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("'use strict'; var a = Object.defineProperty([42], '0', {writable: false}); a[0] = false; a[0];"); 205fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 206fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org// If array property is an undefined setter, [[Put]] should fail. 207fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldBeUndefined("var a = Object.defineProperty([], '0', {set: undefined}); a[0] = 42; a[0];"); 208fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgshouldThrow("'use strict'; var a = Object.defineProperty([], '0', {set: undefined}); a[0] = 42; a[0];"); 209fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 210fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgfunction testObject() 211fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org{ 212fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org // Test case from https://bugs.webkit.org/show_bug.cgi?id=38636 213fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org Object.defineProperty(anObj, 'slot1', {value: 'foo', enumerable: true}); 214fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org Object.defineProperty(anObj, 'slot2', {value: 'bar', writable: true}); 215fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org Object.defineProperty(anObj, 'slot3', {value: 'baz', enumerable: false}); 216fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org Object.defineProperty(anObj, 'slot4', {value: 'goo', configurable: false}); 217fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org shouldBe("anObj.slot1", '"foo"'); 218fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org shouldBe("anObj.slot2", '"bar"'); 219fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org anObj.slot2 = 'bad value'; 220fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org shouldBeTrue("anObj.propertyIsEnumerable('slot1')"); 221fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org shouldBeFalse("anObj.propertyIsEnumerable('slot2')"); 222fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org delete anObj.slot4; 223fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org shouldBe("anObj.slot4", '"goo"'); 224fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org 225fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org // Test case from https://bugs.webkit.org/show_bug.cgi?id=48911 226fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org Object.defineProperty(Object.getPrototypeOf(anObj), 'slot5', {get: function() { return this._Slot5; }, set: function(v) { this._Slot5 = v; }, configurable: false}); 227fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org anObj.slot5 = 123; 228fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org shouldBe("anObj.slot5", '123'); 229fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org shouldBe("anObj._Slot5", '123'); 230fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org shouldBeUndefined("Object.getOwnPropertyDescriptor(anObj, 'slot5')"); 231fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org Object.defineProperty(anObj, 'slot5', { value: 456 }); 232fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org shouldBe("anObj.slot5", '456'); 233fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org shouldBe("anObj._Slot5", '123'); 234fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org shouldBe("Object.getOwnPropertyDescriptor(anObj, 'slot5').value", '456'); 235fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.org} 236fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgvar anObj = {}; 237fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgtestObject(); 238fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgvar anObj = this; 239fb732b17922ea75830be4db6b80534c4827d8a55jkummerow@chromium.orgtestObject(); 240