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:          15.8.2.3.js
24    ECMA Section:       15.8.2.3 asin( x )
25    Description:        return an approximation to the arc sine of the
26                        argument.  the result is expressed in radians and
27                        range is from -PI/2 to +PI/2.  special cases:
28                        - if x is NaN,  the result is NaN
29                        - if x > 1,     the result is NaN
30                        - if x < -1,    the result is NaN
31                        - if x == +0,   the result is +0
32                        - if x == -0,   the result is -0
33    Author:             christine@netscape.com
34    Date:               7 july 1997
35
36*/
37    var SECTION = "15.8.2.3";
38    var VERSION = "ECMA_1";
39    startTest();
40    var TITLE   = "Math.asin()";
41
42    writeHeaderToLog( SECTION + " "+ TITLE);
43
44    var testcases = getTestCases();
45    test();
46
47function getTestCases() {
48    var array = new Array();
49    var item = 0;
50
51    array[item++] = new TestCase( SECTION, "Math.asin()",           Number.NaN,     Math.asin() );
52    array[item++] = new TestCase( SECTION, "Math.asin(void 0)",     Number.NaN,     Math.asin(void 0) );
53    array[item++] = new TestCase( SECTION, "Math.asin(null)",       0,              Math.asin(null) );
54    array[item++] = new TestCase( SECTION, "Math.asin(NaN)",        Number.NaN,     Math.asin(Number.NaN)   );
55
56    array[item++] = new TestCase( SECTION, "Math.asin('string')",   Number.NaN,     Math.asin("string")     );
57    array[item++] = new TestCase( SECTION, "Math.asin('0')",        0,              Math.asin("0") );
58    array[item++] = new TestCase( SECTION, "Math.asin('1')",        Math.PI/2,      Math.asin("1") );
59    array[item++] = new TestCase( SECTION, "Math.asin('-1')",       -Math.PI/2,     Math.asin("-1") );
60    array[item++] = new TestCase( SECTION, "Math.asin(Math.SQRT1_2+'')",    Math.PI/4,  Math.asin(Math.SQRT1_2+'') );
61    array[item++] = new TestCase( SECTION, "Math.asin(-Math.SQRT1_2+'')",   -Math.PI/4, Math.asin(-Math.SQRT1_2+'') );
62
63    array[item++] = new TestCase( SECTION, "Math.asin(1.000001)",    Number.NaN,    Math.asin(1.000001)     );
64    array[item++] = new TestCase( SECTION, "Math.asin(-1.000001)",   Number.NaN,    Math.asin(-1.000001)    );
65    array[item++] = new TestCase( SECTION, "Math.asin(0)",           0,             Math.asin(0)            );
66    array[item++] = new TestCase( SECTION, "Math.asin(-0)",          -0,            Math.asin(-0)           );
67
68    array[item++] = new TestCase( SECTION, "Infinity/Math.asin(-0)",    -Infinity,  Infinity/Math.asin(-0) );
69
70    array[item++] = new TestCase( SECTION, "Math.asin(1)",              Math.PI/2,  Math.asin(1)            );
71    array[item++] = new TestCase( SECTION, "Math.asin(-1)",             -Math.PI/2, Math.asin(-1)            );
72    array[item++] = new TestCase( SECTION, "Math.asin(Math.SQRT1_2))",  Math.PI/4,  Math.asin(Math.SQRT1_2) );
73    array[item++] = new TestCase( SECTION, "Math.asin(-Math.SQRT1_2))", -Math.PI/4, Math.asin(-Math.SQRT1_2));
74
75    return ( array );
76}
77
78function test() {
79    for ( tc=0; tc < testcases.length; tc++ ) {
80        testcases[tc].passed = writeTestCaseResult(
81                            testcases[tc].expect,
82                            testcases[tc].actual,
83                            testcases[tc].description +" = "+
84                            testcases[tc].actual );
85
86        testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
87    }
88    stopTest();
89    return ( testcases );
90}