| /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| /* ***** BEGIN LICENSE BLOCK ***** |
| * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| * |
| * The contents of this file are subject to the Mozilla Public License Version |
| * 1.1 (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * http://www.mozilla.org/MPL/ |
| * |
| * Software distributed under the License is distributed on an "AS IS" basis, |
| * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| * for the specific language governing rights and limitations under the |
| * License. |
| * |
| * The Original Code is Mozilla Communicator client code, released |
| * March 31, 1998. |
| * |
| * The Initial Developer of the Original Code is |
| * Netscape Communications Corporation. |
| * Portions created by the Initial Developer are Copyright (C) 1998 |
| * the Initial Developer. All Rights Reserved. |
| * |
| * Contributor(s): |
| * |
| * Alternatively, the contents of this file may be used under the terms of |
| * either the GNU General Public License Version 2 or later (the "GPL"), or |
| * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| * in which case the provisions of the GPL or the LGPL are applicable instead |
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| * ***** END LICENSE BLOCK ***** */ |
| |
| gTestfile = '15.4.1.2.js'; |
| |
| /** |
| File Name: 15.4.1.2.js |
| ECMA Section: 15.4.1.2 Array(len) |
| |
| Description: When Array is called as a function rather than as a |
| constructor, it creates and initializes a new array |
| object. Thus, the function call Array(...) is |
| equivalent to the object creationi new Array(...) with |
| the same arguments. |
| |
| An array is created and returned as if by the |
| expression new Array(len). |
| |
| Author: christine@netscape.com |
| Date: 7 october 1997 |
| */ |
| var SECTION = "15.4.1.2"; |
| var VERSION = "ECMA_1"; |
| startTest(); |
| var TITLE = "Array Constructor Called as a Function: Array(len)"; |
| |
| writeHeaderToLog( SECTION + " "+ TITLE); |
| |
| new TestCase( SECTION, |
| "(Array()).length", |
| 0, |
| (Array()).length ); |
| |
| new TestCase( SECTION, |
| "(Array(0)).length", |
| 0, |
| (Array(0)).length ); |
| |
| new TestCase( SECTION, |
| "(Array(1)).length", |
| 1, |
| (Array(1)).length ); |
| |
| new TestCase( SECTION, |
| "(Array(10)).length", |
| 10, |
| (Array(10)).length ); |
| |
| new TestCase( SECTION, |
| "(Array('1')).length", |
| 1, |
| (Array('1')).length ); |
| |
| new TestCase( SECTION, |
| "(Array(1000)).length", |
| 1000, |
| (Array(1000)).length ); |
| |
| new TestCase( SECTION, |
| "(Array('1000')).length", |
| 1, |
| (Array('1000')).length ); |
| |
| new TestCase( SECTION, |
| "(Array(4294967295)).length", |
| ToUint32(4294967295), |
| (Array(4294967295)).length ); |
| |
| new TestCase( SECTION, |
| "(Array(Math.pow(2,31)-1)).length", |
| ToUint32(Math.pow(2,31)-1), |
| (Array(Math.pow(2,31)-1)).length ); |
| |
| new TestCase( SECTION, |
| "(Array(Math.pow(2,31))).length", |
| ToUint32(Math.pow(2,31)), |
| (Array(Math.pow(2,31))).length ); |
| |
| new TestCase( SECTION, |
| "(Array(Math.pow(2,31)+1)).length", |
| ToUint32(Math.pow(2,31)+1), |
| (Array(Math.pow(2,31)+1)).length ); |
| |
| new TestCase( SECTION, |
| "(Array('8589934592')).length", |
| 1, |
| (Array("8589934592")).length ); |
| |
| new TestCase( SECTION, |
| "(Array('4294967296')).length", |
| 1, |
| (Array("4294967296")).length ); |
| |
| new TestCase( SECTION, |
| "(Array(1073741823)).length", |
| ToUint32(1073741823), |
| (Array(1073741823)).length ); |
| |
| new TestCase( SECTION, |
| "(Array(1073741824)).length", |
| ToUint32(1073741824), |
| (Array(1073741824)).length ); |
| |
| new TestCase( SECTION, |
| "(Array('a string')).length", |
| 1, |
| (Array("a string")).length ); |
| |
| test(); |
| |
| function ToUint32( n ) { |
| n = Number( n ); |
| var sign = ( n < 0 ) ? -1 : 1; |
| |
| if ( Math.abs( n ) == 0 || Math.abs( n ) == Number.POSITIVE_INFINITY) { |
| return 0; |
| } |
| n = sign * Math.floor( Math.abs(n) ) |
| |
| n = n % Math.pow(2,32); |
| |
| if ( n < 0 ){ |
| n += Math.pow(2,32); |
| } |
| |
| return ( n ); |
| } |