1// Copyright 2013 the V8 project authors. All rights reserved. 2// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions 6// are met: 7// 1. Redistributions of source code must retain the above copyright 8// notice, this list of conditions and the following disclaimer. 9// 2. Redistributions in binary form must reproduce the above copyright 10// notice, this list of conditions and the following disclaimer in the 11// documentation and/or other materials provided with the distribution. 12// 13// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 24description( 25'Test for function.prototype\'s property descriptor.' 26); 27 28function test(func) 29{ 30 // test function.prototype has the correct attributes - writable, enumerable, non-configurable. 31 descriptor = Object.getOwnPropertyDescriptor(func, 'prototype'); 32 shouldBeTrue("descriptor['writable']"); 33 shouldBeFalse("descriptor['enumerable']"); 34 shouldBeFalse("descriptor['configurable']"); 35} 36 37// Test prototype's attributes are correct. 38function a() {} 39test(a); 40 41// Test prototype's attributes are correct, if assigned without first having being accessed. 42function b() {} 43b.prototype = {}; 44test(b); 45 46// Given that prototype is non-configurable, defineProperty should not be able to assign a getter to it. 47function c() {} 48shouldThrow("Object.defineProperty(c, 'prototype', { get: function(){} })"); 49test(c); 50