tests/mozilla/ecma/Math/15.8.2.2.js

   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:          15.8.2.2.js
  24     ECMA Section:       15.8.2.2 acos( x )
  25     Description:        return an approximation to the arc cosine of the
  26                         argument.  the result is expressed in radians and
  27                         range is from +0 to +PI.  special cases:
  28                         - if x is NaN, return NaN
  29                         - if x > 1, the result is NaN
  30                         - if x < -1, the result is NaN
  31                         - if x == 1, the result is +0
  32     Author:             christine@netscape.com
  33     Date:               7 july 1997
  34 */
  35     var SECTION = "15.8.2.2";
  36     var VERSION = "ECMA_1";
  37     startTest();
  38     var TITLE   = "Math.acos()";
  39
  40     writeHeaderToLog( SECTION + " "+ TITLE);
  41
  42     var testcases = getTestCases();
  43     test();
  44
  45 function getTestCases() {
  46     var array = new Array();
  47     var item = 0;
  48
  49     array[item++] = new TestCase( SECTION,  "Math.acos.length",         1,              Math.acos.length );
  50
  51     array[item++] = new TestCase( SECTION,  "Math.acos(void 0)",        Number.NaN,     Math.acos(void 0) );
  52     array[item++] = new TestCase( SECTION,  "Math.acos()",              Number.NaN,     Math.acos() );
  53     array[item++] = new TestCase( SECTION,  "Math.acos(null)",          Math.PI/2,      Math.acos(null) );
  54     array[item++] = new TestCase( SECTION,  "Math.acos(NaN)",           Number.NaN,     Math.acos(Number.NaN) );
  55
  56     array[item++] = new TestCase( SECTION,  "Math.acos(a string)",      Number.NaN,     Math.acos("a string") );
  57     array[item++] = new TestCase( SECTION,  "Math.acos('0')",           Math.PI/2,      Math.acos('0') );
  58     array[item++] = new TestCase( SECTION,  "Math.acos('1')",           0,              Math.acos('1') );
  59     array[item++] = new TestCase( SECTION,  "Math.acos('-1')",          Math.PI,        Math.acos('-1') );
  60
  61     array[item++] = new TestCase( SECTION,  "Math.acos(1.00000001)",    Number.NaN,     Math.acos(1.00000001) );
  62     array[item++] = new TestCase( SECTION,  "Math.acos(11.00000001)",   Number.NaN,     Math.acos(-1.00000001) );
  63     array[item++] = new TestCase( SECTION,  "Math.acos(1)",             0,              Math.acos(1)          );
  64     array[item++] = new TestCase( SECTION,  "Math.acos(-1)",            Math.PI,        Math.acos(-1)         );
  65     array[item++] = new TestCase( SECTION,  "Math.acos(0)",             Math.PI/2,      Math.acos(0)          );
  66     array[item++] = new TestCase( SECTION,  "Math.acos(-0)",            Math.PI/2,      Math.acos(-0)         );
  67     array[item++] = new TestCase( SECTION,  "Math.acos(Math.SQRT1_2)",  Math.PI/4,      Math.acos(Math.SQRT1_2));
  68     array[item++] = new TestCase( SECTION,  "Math.acos(-Math.SQRT1_2)", Math.PI/4*3,    Math.acos(-Math.SQRT1_2));
  69     array[item++] = new TestCase( SECTION,  "Math.acos(0.9999619230642)",       Math.PI/360,    Math.acos(0.9999619230642));
  70
  71     return ( array );
  72 }
  73
  74 function 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 }