js/src/tests/ecma/Array/15.4.1.2.js@6474c204b198 (annotated)
js/src/tests/ecma/Array/15.4.1.2.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: 15.4.1.2.js |
| michael@0 | 9 | ECMA Section: 15.4.1.2 Array(len) |
| michael@0 | 10 | |
| michael@0 | 11 | Description: When Array is called as a function rather than as a |
| michael@0 | 12 | constructor, it creates and initializes a new array |
| michael@0 | 13 | object. Thus, the function call Array(...) is |
| michael@0 | 14 | equivalent to the object creationi new Array(...) with |
| michael@0 | 15 | the same arguments. |
| michael@0 | 16 | |
| michael@0 | 17 | An array is created and returned as if by the |
| michael@0 | 18 | expression new Array(len). |
| michael@0 | 19 | |
| michael@0 | 20 | Author: christine@netscape.com |
| michael@0 | 21 | Date: 7 october 1997 |
| michael@0 | 22 | */ |
| michael@0 | 23 | var SECTION = "15.4.1.2"; |
| michael@0 | 24 | var VERSION = "ECMA_1"; |
| michael@0 | 25 | startTest(); |
| michael@0 | 26 | var TITLE = "Array Constructor Called as a Function: Array(len)"; |
| michael@0 | 27 | |
| michael@0 | 28 | writeHeaderToLog( SECTION + " "+ TITLE); |
| michael@0 | 29 | |
| michael@0 | 30 | new TestCase( SECTION, |
| michael@0 | 31 | "(Array()).length", |
| michael@0 | 32 | 0, |
| michael@0 | 33 | (Array()).length ); |
| michael@0 | 34 | |
| michael@0 | 35 | new TestCase( SECTION, |
| michael@0 | 36 | "(Array(0)).length", |
| michael@0 | 37 | 0, |
| michael@0 | 38 | (Array(0)).length ); |
| michael@0 | 39 | |
| michael@0 | 40 | new TestCase( SECTION, |
| michael@0 | 41 | "(Array(1)).length", |
| michael@0 | 42 | 1, |
| michael@0 | 43 | (Array(1)).length ); |
| michael@0 | 44 | |
| michael@0 | 45 | new TestCase( SECTION, |
| michael@0 | 46 | "(Array(10)).length", |
| michael@0 | 47 | 10, |
| michael@0 | 48 | (Array(10)).length ); |
| michael@0 | 49 | |
| michael@0 | 50 | new TestCase( SECTION, |
| michael@0 | 51 | "(Array('1')).length", |
| michael@0 | 52 | 1, |
| michael@0 | 53 | (Array('1')).length ); |
| michael@0 | 54 | |
| michael@0 | 55 | new TestCase( SECTION, |
| michael@0 | 56 | "(Array(1000)).length", |
| michael@0 | 57 | 1000, |
| michael@0 | 58 | (Array(1000)).length ); |
| michael@0 | 59 | |
| michael@0 | 60 | new TestCase( SECTION, |
| michael@0 | 61 | "(Array('1000')).length", |
| michael@0 | 62 | 1, |
| michael@0 | 63 | (Array('1000')).length ); |
| michael@0 | 64 | |
| michael@0 | 65 | new TestCase( SECTION, |
| michael@0 | 66 | "(Array(4294967295)).length", |
| michael@0 | 67 | ToUint32(4294967295), |
| michael@0 | 68 | (Array(4294967295)).length ); |
| michael@0 | 69 | |
| michael@0 | 70 | new TestCase( SECTION, |
| michael@0 | 71 | "(Array(Math.pow(2,31)-1)).length", |
| michael@0 | 72 | ToUint32(Math.pow(2,31)-1), |
| michael@0 | 73 | (Array(Math.pow(2,31)-1)).length ); |
| michael@0 | 74 | |
| michael@0 | 75 | new TestCase( SECTION, |
| michael@0 | 76 | "(Array(Math.pow(2,31))).length", |
| michael@0 | 77 | ToUint32(Math.pow(2,31)), |
| michael@0 | 78 | (Array(Math.pow(2,31))).length ); |
| michael@0 | 79 | |
| michael@0 | 80 | new TestCase( SECTION, |
| michael@0 | 81 | "(Array(Math.pow(2,31)+1)).length", |
| michael@0 | 82 | ToUint32(Math.pow(2,31)+1), |
| michael@0 | 83 | (Array(Math.pow(2,31)+1)).length ); |
| michael@0 | 84 | |
| michael@0 | 85 | new TestCase( SECTION, |
| michael@0 | 86 | "(Array('8589934592')).length", |
| michael@0 | 87 | 1, |
| michael@0 | 88 | (Array("8589934592")).length ); |
| michael@0 | 89 | |
| michael@0 | 90 | new TestCase( SECTION, |
| michael@0 | 91 | "(Array('4294967296')).length", |
| michael@0 | 92 | 1, |
| michael@0 | 93 | (Array("4294967296")).length ); |
| michael@0 | 94 | |
| michael@0 | 95 | new TestCase( SECTION, |
| michael@0 | 96 | "(Array(1073741823)).length", |
| michael@0 | 97 | ToUint32(1073741823), |
| michael@0 | 98 | (Array(1073741823)).length ); |
| michael@0 | 99 | |
| michael@0 | 100 | new TestCase( SECTION, |
| michael@0 | 101 | "(Array(1073741824)).length", |
| michael@0 | 102 | ToUint32(1073741824), |
| michael@0 | 103 | (Array(1073741824)).length ); |
| michael@0 | 104 | |
| michael@0 | 105 | new TestCase( SECTION, |
| michael@0 | 106 | "(Array('a string')).length", |
| michael@0 | 107 | 1, |
| michael@0 | 108 | (Array("a string")).length ); |
| michael@0 | 109 | |
| michael@0 | 110 | test(); |
| michael@0 | 111 | |
| michael@0 | 112 | function ToUint32( n ) { |
| michael@0 | 113 | n = Number( n ); |
| michael@0 | 114 | var sign = ( n < 0 ) ? -1 : 1; |
| michael@0 | 115 | |
| michael@0 | 116 | if ( Math.abs( n ) == 0 || Math.abs( n ) == Number.POSITIVE_INFINITY) { |
| michael@0 | 117 | return 0; |
| michael@0 | 118 | } |
| michael@0 | 119 | n = sign * Math.floor( Math.abs(n) ) |
| michael@0 | 120 | |
| michael@0 | 121 | n = n % Math.pow(2,32); |
| michael@0 | 122 | |
| michael@0 | 123 | if ( n < 0 ){ |
| michael@0 | 124 | n += Math.pow(2,32); |
| michael@0 | 125 | } |
| michael@0 | 126 | |
| michael@0 | 127 | return ( n ); |
| michael@0 | 128 | } |
