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1/* The contents of this file are subject to the Netscape Public
2 * License Version 1.1 (the "License"); you may not use this file
3 * except in compliance with the License. You may obtain a copy of
4 * the License at http://www.mozilla.org/NPL/
5 *
6 * Software distributed under the License is distributed on an "AS
7 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
8 * implied. See the License for the specific language governing
9 * rights and limitations under the License.
10 *
11 * The Original Code is Mozilla Communicator client code, released March
12 * 31, 1998.
13 *
14 * The Initial Developer of the Original Code is Netscape Communications
15 * Corporation. Portions created by Netscape are
16 * Copyright (C) 1998 Netscape Communications Corporation. All
17 * Rights Reserved.
18 *
19 * Contributor(s):
20 *
21 */
22/**
23 File Name: 15.8.2.7.js
24 ECMA Section: 15.8.2.7 cos( x )
25 Description: return an approximation to the cosine of the
26 argument. argument is expressed in radians
27 Author: christine@netscape.com
28 Date: 7 july 1997
29
30*/
31
32 var SECTION = "15.8.2.7";
33 var VERSION = "ECMA_1";
34 startTest();
35 var TITLE = "Math.cos(x)";
36
37 writeHeaderToLog( SECTION + " "+ TITLE);
38
39 var testcases = getTestCases();
40 test();
41
42function getTestCases() {
43 var array = new Array();
44 var item = 0;
45
46 array[item++] = new TestCase( SECTION, "Math.cos.length", 1, Math.cos.length );
47
48 array[item++] = new TestCase( SECTION, "Math.cos()", Number.NaN, Math.cos() );
49 array[item++] = new TestCase( SECTION, "Math.cos(void 0)", Number.NaN, Math.cos(void 0) );
50 array[item++] = new TestCase( SECTION, "Math.cos(false)", 1, Math.cos(false) );
51 array[item++] = new TestCase( SECTION, "Math.cos(null)", 1, Math.cos(null) );
52
53 array[item++] = new TestCase( SECTION, "Math.cos('0')", 1, Math.cos('0') );
54 array[item++] = new TestCase( SECTION, "Math.cos('Infinity')", Number.NaN, Math.cos("Infinity") );
55 array[item++] = new TestCase( SECTION, "Math.cos('3.14159265359')", -1, Math.cos('3.14159265359') );
56
57 array[item++] = new TestCase( SECTION, "Math.cos(NaN)", Number.NaN, Math.cos(Number.NaN) );
58 array[item++] = new TestCase( SECTION, "Math.cos(0)", 1, Math.cos(0) );
59 array[item++] = new TestCase( SECTION, "Math.cos(-0)", 1, Math.cos(-0) );
60 array[item++] = new TestCase( SECTION, "Math.cos(Infinity)", Number.NaN, Math.cos(Number.POSITIVE_INFINITY) );
61 array[item++] = new TestCase( SECTION, "Math.cos(-Infinity)", Number.NaN, Math.cos(Number.NEGATIVE_INFINITY) );
62 array[item++] = new TestCase( SECTION, "Math.cos(0.7853981633974)", 0.7071067811865, Math.cos(0.7853981633974) );
63 array[item++] = new TestCase( SECTION, "Math.cos(1.570796326795)", 0, Math.cos(1.570796326795) );
64 array[item++] = new TestCase( SECTION, "Math.cos(2.356194490192)", -0.7071067811865, Math.cos(2.356194490192) );
65 array[item++] = new TestCase( SECTION, "Math.cos(3.14159265359)", -1, Math.cos(3.14159265359) );
66 array[item++] = new TestCase( SECTION, "Math.cos(3.926990816987)", -0.7071067811865, Math.cos(3.926990816987) );
67 array[item++] = new TestCase( SECTION, "Math.cos(4.712388980385)", 0, Math.cos(4.712388980385) );
68 array[item++] = new TestCase( SECTION, "Math.cos(5.497787143782)", 0.7071067811865, Math.cos(5.497787143782) );
69 array[item++] = new TestCase( SECTION, "Math.cos(Math.PI*2)", 1, Math.cos(Math.PI*2) );
70 array[item++] = new TestCase( SECTION, "Math.cos(Math.PI/4)", Math.SQRT2/2, Math.cos(Math.PI/4) );
71 array[item++] = new TestCase( SECTION, "Math.cos(Math.PI/2)", 0, Math.cos(Math.PI/2) );
72 array[item++] = new TestCase( SECTION, "Math.cos(3*Math.PI/4)", -Math.SQRT2/2, Math.cos(3*Math.PI/4) );
73 array[item++] = new TestCase( SECTION, "Math.cos(Math.PI)", -1, Math.cos(Math.PI) );
74 array[item++] = new TestCase( SECTION, "Math.cos(5*Math.PI/4)", -Math.SQRT2/2, Math.cos(5*Math.PI/4) );
75 array[item++] = new TestCase( SECTION, "Math.cos(3*Math.PI/2)", 0, Math.cos(3*Math.PI/2) );
76 array[item++] = new TestCase( SECTION, "Math.cos(7*Math.PI/4)", Math.SQRT2/2, Math.cos(7*Math.PI/4) );
77 array[item++] = new TestCase( SECTION, "Math.cos(Math.PI*2)", 1, Math.cos(2*Math.PI) );
78 array[item++] = new TestCase( SECTION, "Math.cos(-0.7853981633974)", 0.7071067811865, Math.cos(-0.7853981633974) );
79 array[item++] = new TestCase( SECTION, "Math.cos(-1.570796326795)", 0, Math.cos(-1.570796326795) );
80 array[item++] = new TestCase( SECTION, "Math.cos(-2.3561944901920)", -.7071067811865, Math.cos(2.3561944901920) );
81 array[item++] = new TestCase( SECTION, "Math.cos(-3.14159265359)", -1, Math.cos(3.14159265359) );
82 array[item++] = new TestCase( SECTION, "Math.cos(-3.926990816987)", -0.7071067811865, Math.cos(3.926990816987) );
83 array[item++] = new TestCase( SECTION, "Math.cos(-4.712388980385)", 0, Math.cos(4.712388980385) );
84 array[item++] = new TestCase( SECTION, "Math.cos(-5.497787143782)", 0.7071067811865, Math.cos(5.497787143782) );
85 array[item++] = new TestCase( SECTION, "Math.cos(-6.28318530718)", 1, Math.cos(6.28318530718) );
86 array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI/4)", Math.SQRT2/2, Math.cos(-Math.PI/4) );
87 array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI/2)", 0, Math.cos(-Math.PI/2) );
88 array[item++] = new TestCase( SECTION, "Math.cos(-3*Math.PI/4)", -Math.SQRT2/2, Math.cos(-3*Math.PI/4) );
89 array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI)", -1, Math.cos(-Math.PI) );
90 array[item++] = new TestCase( SECTION, "Math.cos(-5*Math.PI/4)", -Math.SQRT2/2, Math.cos(-5*Math.PI/4) );
91 array[item++] = new TestCase( SECTION, "Math.cos(-3*Math.PI/2)", 0, Math.cos(-3*Math.PI/2) );
92 array[item++] = new TestCase( SECTION, "Math.cos(-7*Math.PI/4)", Math.SQRT2/2, Math.cos(-7*Math.PI/4) );
93 array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI*2)", 1, Math.cos(-Math.PI*2) );
94
95 return ( array );
96}
97
98
99function test() {
100 for ( tc=0; tc < testcases.length; tc++ ) {
101 testcases[tc].passed = writeTestCaseResult(
102 testcases[tc].expect,
103 testcases[tc].actual,
104 testcases[tc].description +" = "+
105 testcases[tc].actual );
106
107 testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
108 }
109 stopTest();
110 return ( testcases );
111}
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