js/src/tests/ecma/Math/15.8.2.15.js@6474c204b198
js/src/tests/ecma/Math/15.8.2.15.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: 15.8.2.15.js
9 ECMA Section: 15.8.2.15 Math.round(x)
10 Description: return the greatest number value that is closest to the
11 argument and is an integer. if two integers are equally
12 close to the argument. then the result is the number value
13 that is closer to Infinity. if the argument is an integer,
14 return the argument.
15 special cases:
16 - if x is NaN return NaN
17 - if x = +0 return +0
18 - if x = -0 return -0
19 - if x = Infinity return Infinity
20 - if x = -Infinity return -Infinity
21 - if 0 < x < 0.5 return 0
22 - if -0.5 <= x < 0 return -0
23 example:
24 Math.round( 3.5 ) == 4
25 Math.round( -3.5 ) == 3
26 also:
27 - Math.round(x) == Math.floor( x + 0.5 )
28 except if x = -0. in that case, Math.round(x) = -0
30 and Math.floor( x+0.5 ) = +0
33 Author: christine@netscape.com
34 Date: 7 july 1997
35 */
37 var SECTION = "15.8.2.15";
38 var VERSION = "ECMA_1";
39 var TITLE = "Math.round(x)";
40 var BUGNUMBER="331411";
42 var EXCLUDE = "true";
44 startTest();
46 writeHeaderToLog( SECTION + " "+ TITLE);
48 new TestCase( SECTION,
49 "Math.round.length",
50 1,
51 Math.round.length );
53 new TestCase( SECTION,
54 "Math.round()",
55 Number.NaN,
56 Math.round() );
58 new TestCase( SECTION,
59 "Math.round(null)",
60 0,
61 Math.round(0) );
63 new TestCase( SECTION,
64 "Math.round(void 0)",
65 Number.NaN,
66 Math.round(void 0) );
68 new TestCase( SECTION,
69 "Math.round(true)",
70 1,
71 Math.round(true) );
73 new TestCase( SECTION,
74 "Math.round(false)",
75 0,
76 Math.round(false) );
78 new TestCase( SECTION,
79 "Math.round('.99999')",
80 1,
81 Math.round('.99999') );
83 new TestCase( SECTION,
84 "Math.round('12345e-2')",
85 123,
86 Math.round('12345e-2') );
88 new TestCase( SECTION,
89 "Math.round(NaN)",
90 Number.NaN,
91 Math.round(Number.NaN) );
93 new TestCase( SECTION,
94 "Math.round(0)",
95 0,
96 Math.round(0) );
98 new TestCase( SECTION,
99 "Math.round(-0)",
100 -0,
101 Math.round(-0));
103 new TestCase( SECTION,
104 "Infinity/Math.round(-0)",
105 -Infinity,
106 Infinity/Math.round(-0) );
108 new TestCase( SECTION,
109 "Math.round(Infinity)",
110 Number.POSITIVE_INFINITY,
111 Math.round(Number.POSITIVE_INFINITY));
113 new TestCase( SECTION,
114 "Math.round(-Infinity)",
115 Number.NEGATIVE_INFINITY,
116 Math.round(Number.NEGATIVE_INFINITY));
118 new TestCase( SECTION,
119 "Math.round(0.49)",
120 0,
121 Math.round(0.49));
123 new TestCase( SECTION,
124 "Math.round(0.5)",
125 1,
126 Math.round(0.5));
128 new TestCase( SECTION,
129 "Math.round(0.51)",
130 1,
131 Math.round(0.51));
133 new TestCase( SECTION,
134 "Math.round(-0.49)",
135 -0,
136 Math.round(-0.49));
138 new TestCase( SECTION,
139 "Math.round(-0.5)",
140 -0,
141 Math.round(-0.5));
143 new TestCase( SECTION,
144 "Infinity/Math.round(-0.49)",
145 -Infinity,
146 Infinity/Math.round(-0.49));
148 new TestCase( SECTION,
149 "Infinity/Math.round(-0.5)",
150 -Infinity,
151 Infinity/Math.round(-0.5));
153 new TestCase( SECTION,
154 "Math.round(-0.51)",
155 -1,
156 Math.round(-0.51));
158 new TestCase( SECTION,
159 "Math.round(3.5)",
160 4,
161 Math.round(3.5));
163 new TestCase( SECTION,
164 "Math.round(-3.5)",
165 -3,
166 Math.round(-3));
168 test();
