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:          15.8.2.10.js
24    ECMA Section:       15.8.2.10  Math.log(x)
25    Description:        return an approximiation to the natural logarithm of
26                        the argument.
27                        special cases:
28                        -   if arg is NaN       result is NaN
29                        -   if arg is <0        result is NaN
30                        -   if arg is 0 or -0   result is -Infinity
31                        -   if arg is 1         result is 0
32                        -   if arg is Infinity  result is Infinity
33    Author:             christine@netscape.com
34    Date:               7 july 1997
35*/
36
37    var SECTION = "15.8.2.10";
38    var VERSION = "ECMA_1";
39    startTest();
40    var TITLE   = "Math.log(x)";
41    var BUGNUMBER = "77391";
42
43    writeHeaderToLog( SECTION + " "+ TITLE);
44
45    var testcases = getTestCases();
46    test();
47
48function getTestCases() {
49    var array = new Array();
50    var item = 0;
51
52    array[item++] = new TestCase( SECTION,   "Math.log.length",         1,              Math.log.length );
53
54    array[item++] = new TestCase( SECTION,   "Math.log()",              Number.NaN,     Math.log() );
55    array[item++] = new TestCase( SECTION,   "Math.log(void 0)",        Number.NaN,     Math.log(void 0) );
56    array[item++] = new TestCase( SECTION,   "Math.log(null)",          Number.NEGATIVE_INFINITY,   Math.log(null) );
57    array[item++] = new TestCase( SECTION,   "Math.log(true)",          0,              Math.log(true) );
58    array[item++] = new TestCase( SECTION,   "Math.log(false)",         -Infinity,      Math.log(false) );
59    array[item++] = new TestCase( SECTION,   "Math.log('0')",           -Infinity,      Math.log('0') );
60    array[item++] = new TestCase( SECTION,   "Math.log('1')",           0,              Math.log('1') );
61    array[item++] = new TestCase( SECTION,   "Math.log('Infinity')",    Infinity,       Math.log("Infinity") );
62
63    array[item++] = new TestCase( SECTION,   "Math.log(NaN)",           Number.NaN,     Math.log(Number.NaN) );
64    array[item++] = new TestCase( SECTION,   "Math.log(-0.0000001)",    Number.NaN,     Math.log(-0.000001)  );
65    array[item++] = new TestCase( SECTION,   "Math.log(-1)",            Number.NaN,     Math.log(-1)        );
66    array[item++] = new TestCase( SECTION,   "Math.log(0)",             Number.NEGATIVE_INFINITY,   Math.log(0) );
67    array[item++] = new TestCase( SECTION,   "Math.log(-0)",            Number.NEGATIVE_INFINITY,   Math.log(-0));
68    array[item++] = new TestCase( SECTION,   "Math.log(1)",             0,              Math.log(1) );
69    array[item++] = new TestCase( SECTION,   "Math.log(Infinity)",      Number.POSITIVE_INFINITY,   Math.log(Number.POSITIVE_INFINITY) );
70    array[item++] = new TestCase( SECTION,   "Math.log(-Infinity)",     Number.NaN,     Math.log(Number.NEGATIVE_INFINITY) );
71
72    return ( array );
73}
74function test() {
75    for ( tc=0; tc < testcases.length; tc++ ) {
76        testcases[tc].passed = writeTestCaseResult(
77                            testcases[tc].expect,
78                            testcases[tc].actual,
79                            testcases[tc].description +" = "+
80                            testcases[tc].actual );
81
82        testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
83    }
84    stopTest();
85    return ( testcases );
86}