js/src/tests/ecma/Array/15.4.2.2-1.js@6474c204b198
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.
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: 15.4.2.2-1.js
9 ECMA Section: 15.4.2.2 new Array(len)
11 Description: This description only applies of the constructor is
12 given two or more arguments.
14 The [[Prototype]] property of the newly constructed
15 object is set to the original Array prototype object,
16 the one that is the initial value of Array.prototype(0)
17 (15.4.3.1).
19 The [[Class]] property of the newly constructed object
20 is set to "Array".
22 If the argument len is a number, then the length
23 property of the newly constructed object is set to
24 ToUint32(len).
26 If the argument len is not a number, then the length
27 property of the newly constructed object is set to 1
28 and the 0 property of the newly constructed object is
29 set to len.
31 This file tests cases where len is a number.
33 The cases in this test need to be updated since the
34 ToUint32_t description has changed.
36 Author: christine@netscape.com
37 Date: 7 october 1997
38 */
39 var SECTION = "15.4.2.2-1";
40 var VERSION = "ECMA_1";
41 startTest();
42 var TITLE = "The Array Constructor: new Array( len )";
44 writeHeaderToLog( SECTION + " "+ TITLE);
46 new TestCase( SECTION,
47 "new Array(0)",
48 "",
49 (new Array(0)).toString() );
51 new TestCase( SECTION,
52 "typeof new Array(0)",
53 "object",
54 (typeof new Array(0)) );
56 new TestCase( SECTION,
57 "(new Array(0)).length",
58 0,
59 (new Array(0)).length );
61 new TestCase( SECTION,
62 "(new Array(0)).toString",
63 Array.prototype.toString,
64 (new Array(0)).toString );
66 new TestCase( SECTION,
67 "new Array(1)",
68 "",
69 (new Array(1)).toString() );
71 new TestCase( SECTION,
72 "new Array(1).length",
73 1,
74 (new Array(1)).length );
76 new TestCase( SECTION,
77 "(new Array(1)).toString",
78 Array.prototype.toString,
79 (new Array(1)).toString );
81 new TestCase( SECTION,
82 "(new Array(-0)).length",
83 0,
84 (new Array(-0)).length );
86 new TestCase( SECTION,
87 "(new Array(0)).length",
88 0,
89 (new Array(0)).length );
91 new TestCase( SECTION,
92 "(new Array(10)).length",
93 10,
94 (new Array(10)).length );
96 new TestCase( SECTION,
97 "(new Array('1')).length",
98 1,
99 (new Array('1')).length );
101 new TestCase( SECTION,
102 "(new Array(1000)).length",
103 1000,
104 (new Array(1000)).length );
106 new TestCase( SECTION,
107 "(new Array('1000')).length",
108 1,
109 (new Array('1000')).length );
111 new TestCase( SECTION,
112 "(new Array(4294967295)).length",
113 ToUint32(4294967295),
114 (new Array(4294967295)).length );
116 new TestCase( SECTION,
117 "(new Array('8589934592')).length",
118 1,
119 (new Array("8589934592")).length );
121 new TestCase( SECTION,
122 "(new Array('4294967296')).length",
123 1,
124 (new Array("4294967296")).length );
126 new TestCase( SECTION,
127 "(new Array(1073741824)).length",
128 ToUint32(1073741824),
129 (new Array(1073741824)).length );
131 test();
133 function ToUint32( n ) {
134 n = Number( n );
135 var sign = ( n < 0 ) ? -1 : 1;
137 if ( Math.abs( n ) == 0 || Math.abs( n ) == Number.POSITIVE_INFINITY) {
138 return 0;
139 }
140 n = sign * Math.floor( Math.abs(n) )
142 n = n % Math.pow(2,32);
144 if ( n < 0 ){
145 n += Math.pow(2,32);
146 }
148 return ( n );
149 }
