| /* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| |
| /** |
| File Name: 15.4.2.2-1.js |
| ECMA Section: 15.4.2.2 new Array(len) |
| |
| Description: This description only applies of the constructor is |
| given two or more arguments. |
| |
| The [[Prototype]] property of the newly constructed |
| object is set to the original Array prototype object, |
| the one that is the initial value of Array.prototype(0) |
| (15.4.3.1). |
| |
| The [[Class]] property of the newly constructed object |
| is set to "Array". |
| |
| If the argument len is a number, then the length |
| property of the newly constructed object is set to |
| ToUint32(len). |
| |
| If the argument len is not a number, then the length |
| property of the newly constructed object is set to 1 |
| and the 0 property of the newly constructed object is |
| set to len. |
| |
| This file tests cases where len is a number. |
| |
| The cases in this test need to be updated since the |
| ToUint32_t description has changed. |
| |
| Author: christine@netscape.com |
| Date: 7 october 1997 |
| */ |
| var SECTION = "15.4.2.2-1"; |
| var VERSION = "ECMA_1"; |
| startTest(); |
| var TITLE = "The Array Constructor: new Array( len )"; |
| |
| writeHeaderToLog( SECTION + " "+ TITLE); |
| |
| new TestCase( SECTION, |
| "new Array(0)", |
| "", |
| (new Array(0)).toString() ); |
| |
| new TestCase( SECTION, |
| "typeof new Array(0)", |
| "object", |
| (typeof new Array(0)) ); |
| |
| new TestCase( SECTION, |
| "(new Array(0)).length", |
| 0, |
| (new Array(0)).length ); |
| |
| new TestCase( SECTION, |
| "(new Array(0)).toString", |
| Array.prototype.toString, |
| (new Array(0)).toString ); |
| |
| new TestCase( SECTION, |
| "new Array(1)", |
| "", |
| (new Array(1)).toString() ); |
| |
| new TestCase( SECTION, |
| "new Array(1).length", |
| 1, |
| (new Array(1)).length ); |
| |
| new TestCase( SECTION, |
| "(new Array(1)).toString", |
| Array.prototype.toString, |
| (new Array(1)).toString ); |
| |
| new TestCase( SECTION, |
| "(new Array(-0)).length", |
| 0, |
| (new Array(-0)).length ); |
| |
| new TestCase( SECTION, |
| "(new Array(0)).length", |
| 0, |
| (new Array(0)).length ); |
| |
| new TestCase( SECTION, |
| "(new Array(10)).length", |
| 10, |
| (new Array(10)).length ); |
| |
| new TestCase( SECTION, |
| "(new Array('1')).length", |
| 1, |
| (new Array('1')).length ); |
| |
| new TestCase( SECTION, |
| "(new Array(1000)).length", |
| 1000, |
| (new Array(1000)).length ); |
| |
| new TestCase( SECTION, |
| "(new Array('1000')).length", |
| 1, |
| (new Array('1000')).length ); |
| |
| new TestCase( SECTION, |
| "(new Array(4294967295)).length", |
| ToUint32(4294967295), |
| (new Array(4294967295)).length ); |
| |
| new TestCase( SECTION, |
| "(new Array('8589934592')).length", |
| 1, |
| (new Array("8589934592")).length ); |
| |
| new TestCase( SECTION, |
| "(new Array('4294967296')).length", |
| 1, |
| (new Array("4294967296")).length ); |
| |
| new TestCase( SECTION, |
| "(new Array(1073741824)).length", |
| ToUint32(1073741824), |
| (new Array(1073741824)).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 ); |
| } |