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