js/src/tests/ecma/Array/15.4.1.2.js@6474c204b198
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.
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
7 /**
8 File Name: 15.4.1.2.js
9 ECMA Section: 15.4.1.2 Array(len)
11 Description: When Array is called as a function rather than as a
12 constructor, it creates and initializes a new array
13 object. Thus, the function call Array(...) is
14 equivalent to the object creationi new Array(...) with
15 the same arguments.
17 An array is created and returned as if by the
18 expression new Array(len).
20 Author: christine@netscape.com
21 Date: 7 october 1997
22 */
23 var SECTION = "15.4.1.2";
24 var VERSION = "ECMA_1";
25 startTest();
26 var TITLE = "Array Constructor Called as a Function: Array(len)";
28 writeHeaderToLog( SECTION + " "+ TITLE);
30 new TestCase( SECTION,
31 "(Array()).length",
32 0,
33 (Array()).length );
35 new TestCase( SECTION,
36 "(Array(0)).length",
37 0,
38 (Array(0)).length );
40 new TestCase( SECTION,
41 "(Array(1)).length",
42 1,
43 (Array(1)).length );
45 new TestCase( SECTION,
46 "(Array(10)).length",
47 10,
48 (Array(10)).length );
50 new TestCase( SECTION,
51 "(Array('1')).length",
52 1,
53 (Array('1')).length );
55 new TestCase( SECTION,
56 "(Array(1000)).length",
57 1000,
58 (Array(1000)).length );
60 new TestCase( SECTION,
61 "(Array('1000')).length",
62 1,
63 (Array('1000')).length );
65 new TestCase( SECTION,
66 "(Array(4294967295)).length",
67 ToUint32(4294967295),
68 (Array(4294967295)).length );
70 new TestCase( SECTION,
71 "(Array(Math.pow(2,31)-1)).length",
72 ToUint32(Math.pow(2,31)-1),
73 (Array(Math.pow(2,31)-1)).length );
75 new TestCase( SECTION,
76 "(Array(Math.pow(2,31))).length",
77 ToUint32(Math.pow(2,31)),
78 (Array(Math.pow(2,31))).length );
80 new TestCase( SECTION,
81 "(Array(Math.pow(2,31)+1)).length",
82 ToUint32(Math.pow(2,31)+1),
83 (Array(Math.pow(2,31)+1)).length );
85 new TestCase( SECTION,
86 "(Array('8589934592')).length",
87 1,
88 (Array("8589934592")).length );
90 new TestCase( SECTION,
91 "(Array('4294967296')).length",
92 1,
93 (Array("4294967296")).length );
95 new TestCase( SECTION,
96 "(Array(1073741823)).length",
97 ToUint32(1073741823),
98 (Array(1073741823)).length );
100 new TestCase( SECTION,
101 "(Array(1073741824)).length",
102 ToUint32(1073741824),
103 (Array(1073741824)).length );
105 new TestCase( SECTION,
106 "(Array('a string')).length",
107 1,
108 (Array("a string")).length );
110 test();
112 function ToUint32( n ) {
113 n = Number( n );
114 var sign = ( n < 0 ) ? -1 : 1;
116 if ( Math.abs( n ) == 0 || Math.abs( n ) == Number.POSITIVE_INFINITY) {
117 return 0;
118 }
119 n = sign * Math.floor( Math.abs(n) )
121 n = n % Math.pow(2,32);
123 if ( n < 0 ){
124 n += Math.pow(2,32);
125 }
127 return ( n );
128 }
