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Edit File: object-define-properties.js
// Copyright 2010 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * 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. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT // OWNER OR 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. // Tests the Object.defineProperties method - ES 15.2.3.7 // Note that the internal DefineOwnProperty method is tested through // object-define-property.js, this file only contains tests specific for // Object.defineProperties. Also note that object-create.js contains // a range of indirect tests on this method since Object.create uses // Object.defineProperties as a step in setting up the object. // Try defining with null as descriptor: try { Object.defineProperties({}, null); } catch(e) { assertTrue(/null to object/.test(e)); } // Try defining with null as object try { Object.defineProperties(null, {}); } catch(e) { assertTrue(/called on non-object/.test(e)); } var desc = {foo: {value: 10}, bar: {get: function() {return 42; }}}; var obj = {}; // Check that we actually get the object back as returnvalue var x = Object.defineProperties(obj, desc); assertEquals(x.foo, 10); assertEquals(x.bar, 42); // Make sure that all property descriptors are calculated before any // modifications are done. var object = {}; assertThrows(function() { Object.defineProperties(object, { foo: { value: 1 }, bar: { value: 2, get: function() { return 3; } } }); }, TypeError); assertEquals(undefined, object.foo); assertEquals(undefined, object.bar);