michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: var BUGNUMBER = 505587;
michael@0: var summary = 'ES5 Object.getOwnPropertyDescriptor(O)';
michael@0: var actual = '';
michael@0: var expect = '';
michael@0: 
michael@0: printBugNumber(BUGNUMBER);
michael@0: printStatus (summary);
michael@0: 
michael@0: /**************
michael@0:  * BEGIN TEST *
michael@0:  **************/
michael@0: 
michael@0: function assertEq(a, e, msg)
michael@0: {
michael@0:   function SameValue(v1, v2)
michael@0:   {
michael@0:     if (v1 === 0 && v2 === 0)
michael@0:       return 1 / v1 === 1 / v2;
michael@0:     if (v1 !== v1 && v2 !== v2)
michael@0:       return true;
michael@0:     return v1 === v2;
michael@0:   }
michael@0: 
michael@0:   if (!SameValue(a, e))
michael@0:   {
michael@0:     var stack = new Error().stack || "";
michael@0:     throw "Assertion failed: got " + a + ", expected " + e +
michael@0:           (msg ? ": " + msg : "") +
michael@0:           (stack ? "\nStack:\n" + stack : "");
michael@0:   }
michael@0: }
michael@0: 
michael@0: function expectDescriptor(actual, expected)
michael@0: {
michael@0:   if (actual === undefined && expected === undefined)
michael@0:     return;
michael@0: 
michael@0:   assertEq(typeof actual, "object");
michael@0:   assertEq(typeof expected, "object");
michael@0: 
michael@0:   var fields =
michael@0:     {
michael@0:       value: true,
michael@0:       get: true,
michael@0:       set: true,
michael@0:       enumerable: true,
michael@0:       writable: true,
michael@0:       configurable: true
michael@0:     };
michael@0:   for (var p in fields)
michael@0:     assertEq(actual.hasOwnProperty(p), expected.hasOwnProperty(p), p);
michael@0:   for (var p in actual)
michael@0:     assertEq(p in fields, true, p);
michael@0:   for (var p in expected)
michael@0:     assertEq(p in fields, true, p);
michael@0: 
michael@0:   assertEq(actual.hasOwnProperty("value"), actual.hasOwnProperty("writable"));
michael@0:   assertEq(actual.hasOwnProperty("get"), actual.hasOwnProperty("set"));
michael@0:   if (actual.hasOwnProperty("value"))
michael@0:   {
michael@0:     assertEq(actual.value, expected.value);
michael@0:     assertEq(actual.writable, expected.writable);
michael@0:   }
michael@0:   else
michael@0:   {
michael@0:     assertEq(actual.get, expected.get);
michael@0:     assertEq(actual.set, expected.set);
michael@0:   }
michael@0: 
michael@0:   assertEq(actual.hasOwnProperty("enumerable"), true);
michael@0:   assertEq(actual.hasOwnProperty("configurable"), true);
michael@0:   assertEq(actual.enumerable, expected.enumerable);
michael@0:   assertEq(actual.configurable, expected.configurable);
michael@0: }
michael@0: 
michael@0: function adjustDescriptorField(o, actual, expect, field)
michael@0: {
michael@0:   assertEq(field === "get" || field === "set", true);
michael@0:   var lookup = "__lookup" + (field === "get" ? "G" : "S") + "etter";
michael@0:   if (typeof o[lookup] === "function")
michael@0:     expect[field] = o[lookup](field);
michael@0:   else
michael@0:     actual[field] = expect[field] = undefined; /* censor if we can't lookup */
michael@0: }
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: var o, pd, expected;
michael@0: 
michael@0: o = { get x() { return 12; } };
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "x");
michael@0: expected =
michael@0:   {
michael@0:     set: undefined,
michael@0:     enumerable: true,
michael@0:     configurable: true
michael@0:   };
michael@0: adjustDescriptorField(o, pd, expected, "get");
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: var o2;
michael@0: 
michael@0: o = Object.create(Object.prototype, { x: {get: function () { return 12; } } });
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "x");
michael@0: expected =
michael@0:   {
michael@0:     set: undefined,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: adjustDescriptorField(o, pd, expected, "get");
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: o2 = Object.create(o);
michael@0: assertEq(Object.getOwnPropertyDescriptor(o2, "x"), undefined);
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: o = {};
michael@0: o.b = 12;
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "b");
michael@0: expected =
michael@0:   {
michael@0:     value: 12,
michael@0:     writable: true,
michael@0:     enumerable: true,
michael@0:     configurable: true
michael@0:   };
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: o = { get y() { return 17; }, set y(z) { } };
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "y");
michael@0: expected =
michael@0:   {
michael@0:     enumerable: true,
michael@0:     configurable: true
michael@0:   };
michael@0: adjustDescriptorField(o, pd, expected, "get");
michael@0: adjustDescriptorField(o, pd, expected, "set");
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: o = {};
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "absent");
michael@0: 
michael@0: expectDescriptor(pd, undefined);
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor([], "length");
michael@0: expected =
michael@0:   {
michael@0:     value: 0,
michael@0:     writable: true,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor([1], "length");
michael@0: expected =
michael@0:   {
michael@0:     value: 1,
michael@0:     writable: true,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor([1,], "length");
michael@0: expected =
michael@0:   {
michael@0:     value: 1,
michael@0:     writable: true,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor([1,,], "length");
michael@0: expected =
michael@0:   {
michael@0:     value: 2,
michael@0:     writable: true,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(new String("foobar"), "length");
michael@0: expected =
michael@0:   {
michael@0:     value: 6,
michael@0:     writable: false,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: function foo() { }
michael@0: o = foo;
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "length");
michael@0: expected =
michael@0:   {
michael@0:     value: 0,
michael@0:     writable: false,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "prototype");
michael@0: expected =
michael@0:   {
michael@0:     value: foo.prototype,
michael@0:     writable: true,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(Function, "length");
michael@0: expected =
michael@0:   {
michael@0:     value: 1,
michael@0:     writable: false,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: o = /foo/im;
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "source");
michael@0: expected =
michael@0:   {
michael@0:     value: "foo",
michael@0:     writable: false,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "global");
michael@0: expected =
michael@0:   {
michael@0:     value: false,
michael@0:     writable: false,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "ignoreCase");
michael@0: expected =
michael@0:   {
michael@0:     value: true,
michael@0:     writable: false,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "multiline");
michael@0: expected =
michael@0:   {
michael@0:     value: true,
michael@0:     writable: false,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: pd = Object.getOwnPropertyDescriptor(o, "lastIndex");
michael@0: expected =
michael@0:   {
michael@0:     value: 0,
michael@0:     writable: true,
michael@0:     enumerable: false,
michael@0:     configurable: false
michael@0:   };
michael@0: 
michael@0: expectDescriptor(pd, expected);
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: reportCompare(expect, actual, "Object.getOwnPropertyDescriptor");
michael@0: 
michael@0: printStatus("All tests passed");