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Diffstat (limited to 'js/src/tests/ecma/Array/15.4.2.2-1.js')
| -rw-r--r-- | js/src/tests/ecma/Array/15.4.2.2-1.js | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/js/src/tests/ecma/Array/15.4.2.2-1.js b/js/src/tests/ecma/Array/15.4.2.2-1.js new file mode 100644 index 000000000..6a8956113 --- /dev/null +++ b/js/src/tests/ecma/Array/15.4.2.2-1.js @@ -0,0 +1,149 @@ +/* -*- 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 ); +} |