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: /**
michael@0:    File Name:          15.4.2.2-1.js
michael@0:    ECMA Section:       15.4.2.2 new Array(len)
michael@0: 
michael@0:    Description:        This description only applies of the constructor is
michael@0:    given two or more arguments.
michael@0: 
michael@0:    The [[Prototype]] property of the newly constructed
michael@0:    object is set to the original Array prototype object,
michael@0:    the one that is the initial value of Array.prototype(0)
michael@0:    (15.4.3.1).
michael@0: 
michael@0:    The [[Class]] property of the newly constructed object
michael@0:    is set to "Array".
michael@0: 
michael@0:    If the argument len is a number, then the length
michael@0:    property  of the newly constructed object is set to
michael@0:    ToUint32(len).
michael@0: 
michael@0:    If the argument len is not a number, then the length
michael@0:    property of the newly constructed object is set to 1
michael@0:    and the 0 property of the newly constructed object is
michael@0:    set to len.
michael@0: 
michael@0:    This file tests cases where len is a number.
michael@0: 
michael@0:    The cases in this test need to be updated since the
michael@0:    ToUint32_t description has changed.
michael@0: 
michael@0:    Author:             christine@netscape.com
michael@0:    Date:               7 october 1997
michael@0: */
michael@0: var SECTION = "15.4.2.2-1";
michael@0: var VERSION = "ECMA_1";
michael@0: startTest();
michael@0: var TITLE   = "The Array Constructor:  new Array( len )";
michael@0: 
michael@0: writeHeaderToLog( SECTION + " "+ TITLE);
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "new Array(0)",            
michael@0: 	      "",                
michael@0: 	      (new Array(0)).toString() );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "typeof new Array(0)",     
michael@0: 	      "object",          
michael@0: 	      (typeof new Array(0)) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array(0)).length",   
michael@0: 	      0,                 
michael@0: 	      (new Array(0)).length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array(0)).toString",
michael@0: 	      Array.prototype.toString,   
michael@0: 	      (new Array(0)).toString );
michael@0: 
michael@0: new TestCase( SECTION,  
michael@0: 	      "new Array(1)",           
michael@0: 	      "",                
michael@0: 	      (new Array(1)).toString() );
michael@0: 
michael@0: new TestCase( SECTION,  
michael@0: 	      "new Array(1).length",    
michael@0: 	      1,                 
michael@0: 	      (new Array(1)).length );
michael@0: 
michael@0: new TestCase( SECTION,  
michael@0: 	      "(new Array(1)).toString",
michael@0: 	      Array.prototype.toString,  
michael@0: 	      (new Array(1)).toString );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array(-0)).length",                      
michael@0: 	      0, 
michael@0: 	      (new Array(-0)).length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array(0)).length",                       
michael@0: 	      0, 
michael@0: 	      (new Array(0)).length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array(10)).length",          
michael@0: 	      10,        
michael@0: 	      (new Array(10)).length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array('1')).length",         
michael@0: 	      1,         
michael@0: 	      (new Array('1')).length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array(1000)).length",        
michael@0: 	      1000,      
michael@0: 	      (new Array(1000)).length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array('1000')).length",      
michael@0: 	      1,         
michael@0: 	      (new Array('1000')).length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array(4294967295)).length",  
michael@0: 	      ToUint32(4294967295),  
michael@0: 	      (new Array(4294967295)).length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array('8589934592')).length",
michael@0: 	      1,                     
michael@0: 	      (new Array("8589934592")).length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array('4294967296')).length",
michael@0: 	      1,                     
michael@0: 	      (new Array("4294967296")).length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "(new Array(1073741824)).length",  
michael@0: 	      ToUint32(1073741824),
michael@0: 	      (new Array(1073741824)).length );
michael@0: 
michael@0: test();
michael@0: 
michael@0: function ToUint32( n ) {
michael@0:   n = Number( n );
michael@0:   var sign = ( n < 0 ) ? -1 : 1;
michael@0: 
michael@0:   if ( Math.abs( n ) == 0 || Math.abs( n ) == Number.POSITIVE_INFINITY) {
michael@0:     return 0;
michael@0:   }
michael@0:   n = sign * Math.floor( Math.abs(n) )
michael@0: 
michael@0:     n = n % Math.pow(2,32);
michael@0: 
michael@0:   if ( n < 0 ){
michael@0:     n += Math.pow(2,32);
michael@0:   }
michael@0: 
michael@0:   return ( n );
michael@0: }