v8/test/webkit/Object-create.js

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// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
description("Test to ensure correct behaviour of Object.defineProperties");
shouldThrow("Object.create()");
shouldThrow("Object.create('a string')");
shouldThrow("Object.create({}, 'a string')");
shouldThrow("Object.create(null, 'a string')");
shouldBe("JSON.stringify(Object.create(null,{property:{value:'foo', enumerable:true}, property2:{value:'foo', enumerable:true}}))", '\'{"property":"foo","property2":"foo"}\'');
shouldBe("JSON.stringify(Object.create({},{property:{value:'foo', enumerable:true}, property2:{value:'foo', enumerable:true}}))", '\'{"property":"foo","property2":"foo"}\'');
shouldBe("JSON.stringify(Object.create({},{property:{value:'foo'}, property2:{value:'foo', enumerable:true}}))", '\'{"property2":"foo"}\'');
shouldBe("JSON.stringify(Object.create(null,{property:{value:'foo'}, property2:{value:'foo', enumerable:true}}))", '\'{"property2":"foo"}\'');
shouldBe("Object.getPrototypeOf(Object.create(Array.prototype))", "Array.prototype");
shouldBe("Object.getPrototypeOf(Object.create(null))", "null");
function valueGet() { return true; }
var DescriptorWithValueGetter = { foo: Object.create(null, { value: { get: valueGet }})};
var DescriptorWithEnumerableGetter = { foo: Object.create(null, { value: {value: true}, enumerable: { get: valueGet }})};
var DescriptorWithConfigurableGetter = { foo: Object.create(null, { value: {value: true}, configurable: { get: valueGet }})};
var DescriptorWithWritableGetter = { foo: Object.create(null, { value: {value: true}, writable: { get: valueGet }})};
var DescriptorWithGetGetter = { foo: Object.create(null, { get: { get: function() { return valueGet } }})};
var DescriptorWithSetGetter = { foo: Object.create(null, { get: { value: valueGet}, set: { get: function(){ return valueGet; } }})};
shouldBeTrue("Object.create(null, DescriptorWithValueGetter).foo");
shouldBeTrue("Object.create(null, DescriptorWithEnumerableGetter).foo");
shouldBeTrue("Object.create(null, DescriptorWithConfigurableGetter).foo");
shouldBeTrue("Object.create(null, DescriptorWithWritableGetter).foo");
shouldBeTrue("Object.create(null, DescriptorWithGetGetter).foo");
shouldBeTrue("Object.create(null, DescriptorWithSetGetter).foo");