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js/src/tests/ecma/Array/15.4.2.2-1.js@6474c204b198 (annotated)

js/src/tests/ecma/Array/15.4.2.2-1.js

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6
michael@0 7 /**
michael@0 8 File Name: 15.4.2.2-1.js
michael@0 9 ECMA Section: 15.4.2.2 new Array(len)
michael@0 10
michael@0 11 Description: This description only applies of the constructor is
michael@0 12 given two or more arguments.
michael@0 13
michael@0 14 The [[Prototype]] property of the newly constructed
michael@0 15 object is set to the original Array prototype object,
michael@0 16 the one that is the initial value of Array.prototype(0)
michael@0 17 (15.4.3.1).
michael@0 18
michael@0 19 The [[Class]] property of the newly constructed object
michael@0 20 is set to "Array".
michael@0 21
michael@0 22 If the argument len is a number, then the length
michael@0 23 property of the newly constructed object is set to
michael@0 24 ToUint32(len).
michael@0 25
michael@0 26 If the argument len is not a number, then the length
michael@0 27 property of the newly constructed object is set to 1
michael@0 28 and the 0 property of the newly constructed object is
michael@0 29 set to len.
michael@0 30
michael@0 31 This file tests cases where len is a number.
michael@0 32
michael@0 33 The cases in this test need to be updated since the
michael@0 34 ToUint32_t description has changed.
michael@0 35
michael@0 36 Author: christine@netscape.com
michael@0 37 Date: 7 october 1997
michael@0 38 */
michael@0 39 var SECTION = "15.4.2.2-1";
michael@0 40 var VERSION = "ECMA_1";
michael@0 41 startTest();
michael@0 42 var TITLE = "The Array Constructor: new Array( len )";
michael@0 43
michael@0 44 writeHeaderToLog( SECTION + " "+ TITLE);
michael@0 45
michael@0 46 new TestCase( SECTION,
michael@0 47 "new Array(0)",
michael@0 48 "",
michael@0 49 (new Array(0)).toString() );
michael@0 50
michael@0 51 new TestCase( SECTION,
michael@0 52 "typeof new Array(0)",
michael@0 53 "object",
michael@0 54 (typeof new Array(0)) );
michael@0 55
michael@0 56 new TestCase( SECTION,
michael@0 57 "(new Array(0)).length",
michael@0 58 0,
michael@0 59 (new Array(0)).length );
michael@0 60
michael@0 61 new TestCase( SECTION,
michael@0 62 "(new Array(0)).toString",
michael@0 63 Array.prototype.toString,
michael@0 64 (new Array(0)).toString );
michael@0 65
michael@0 66 new TestCase( SECTION,
michael@0 67 "new Array(1)",
michael@0 68 "",
michael@0 69 (new Array(1)).toString() );
michael@0 70
michael@0 71 new TestCase( SECTION,
michael@0 72 "new Array(1).length",
michael@0 73 1,
michael@0 74 (new Array(1)).length );
michael@0 75
michael@0 76 new TestCase( SECTION,
michael@0 77 "(new Array(1)).toString",
michael@0 78 Array.prototype.toString,
michael@0 79 (new Array(1)).toString );
michael@0 80
michael@0 81 new TestCase( SECTION,
michael@0 82 "(new Array(-0)).length",
michael@0 83 0,
michael@0 84 (new Array(-0)).length );
michael@0 85
michael@0 86 new TestCase( SECTION,
michael@0 87 "(new Array(0)).length",
michael@0 88 0,
michael@0 89 (new Array(0)).length );
michael@0 90
michael@0 91 new TestCase( SECTION,
michael@0 92 "(new Array(10)).length",
michael@0 93 10,
michael@0 94 (new Array(10)).length );
michael@0 95
michael@0 96 new TestCase( SECTION,
michael@0 97 "(new Array('1')).length",
michael@0 98 1,
michael@0 99 (new Array('1')).length );
michael@0 100
michael@0 101 new TestCase( SECTION,
michael@0 102 "(new Array(1000)).length",
michael@0 103 1000,
michael@0 104 (new Array(1000)).length );
michael@0 105
michael@0 106 new TestCase( SECTION,
michael@0 107 "(new Array('1000')).length",
michael@0 108 1,
michael@0 109 (new Array('1000')).length );
michael@0 110
michael@0 111 new TestCase( SECTION,
michael@0 112 "(new Array(4294967295)).length",
michael@0 113 ToUint32(4294967295),
michael@0 114 (new Array(4294967295)).length );
michael@0 115
michael@0 116 new TestCase( SECTION,
michael@0 117 "(new Array('8589934592')).length",
michael@0 118 1,
michael@0 119 (new Array("8589934592")).length );
michael@0 120
michael@0 121 new TestCase( SECTION,
michael@0 122 "(new Array('4294967296')).length",
michael@0 123 1,
michael@0 124 (new Array("4294967296")).length );
michael@0 125
michael@0 126 new TestCase( SECTION,
michael@0 127 "(new Array(1073741824)).length",
michael@0 128 ToUint32(1073741824),
michael@0 129 (new Array(1073741824)).length );
michael@0 130
michael@0 131 test();
michael@0 132
michael@0 133 function ToUint32( n ) {
michael@0 134 n = Number( n );
michael@0 135 var sign = ( n < 0 ) ? -1 : 1;
michael@0 136
michael@0 137 if ( Math.abs( n ) == 0 || Math.abs( n ) == Number.POSITIVE_INFINITY) {
michael@0 138 return 0;
michael@0 139 }
michael@0 140 n = sign * Math.floor( Math.abs(n) )
michael@0 141
michael@0 142 n = n % Math.pow(2,32);
michael@0 143
michael@0 144 if ( n < 0 ){
michael@0 145 n += Math.pow(2,32);
michael@0 146 }
michael@0 147
michael@0 148 return ( n );
michael@0 149 }

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