tests/mozilla/ecma/Math/15.8.2.8.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:          15.8.2.8.js
  24     ECMA Section:       15.8.2.8  Math.exp(x)
  25     Description:        return an approximation to the exponential function of
  26                         the argument (e raised to the power of the argument)
  27                         special cases:
  28                         -   if x is NaN         return NaN
  29                         -   if x is 0           return 1
  30                         -   if x is -0          return 1
  31                         -   if x is Infinity    return Infinity
  32                         -   if x is -Infinity   return 0
  33     Author:             christine@netscape.com
  34     Date:               7 july 1997
  35 */
  36
  37
  38     var SECTION = "15.8.2.8";
  39     var VERSION = "ECMA_1";
  40     startTest();
  41     var TITLE   = "Math.exp(x)";
  42
  43     writeHeaderToLog( SECTION + " "+ TITLE);
  44
  45     var testcases = getTestCases();
  46     test();
  47
  48 function getTestCases() {
  49     var array = new Array();
  50     var item = 0;
  51
  52     array[item++] = new TestCase( SECTION,   "Math.exp.length",     1,              Math.exp.length );
  53
  54     array[item++] = new TestCase( SECTION,   "Math.exp()",          Number.NaN,     Math.exp() );
  55     array[item++] = new TestCase( SECTION,   "Math.exp(null)",      1,              Math.exp(null) );
  56     array[item++] = new TestCase( SECTION,   "Math.exp(void 0)",    Number.NaN,     Math.exp(void 0) );
  57     array[item++] = new TestCase( SECTION,   "Math.exp(1)",          Math.E,         Math.exp(1) );
  58     array[item++] = new TestCase( SECTION,   "Math.exp(true)",      Math.E,         Math.exp(true) );
  59     array[item++] = new TestCase( SECTION,   "Math.exp(false)",     1,              Math.exp(false) );
  60
  61     array[item++] = new TestCase( SECTION,   "Math.exp('1')",       Math.E,         Math.exp('1') );
  62     array[item++] = new TestCase( SECTION,   "Math.exp('0')",       1,              Math.exp('0') );
  63
  64     array[item++] = new TestCase( SECTION,   "Math.exp(NaN)",       Number.NaN,      Math.exp(Number.NaN) );
  65     array[item++] = new TestCase( SECTION,   "Math.exp(0)",          1,              Math.exp(0)          );
  66     array[item++] = new TestCase( SECTION,   "Math.exp(-0)",         1,              Math.exp(-0)         );
  67     array[item++] = new TestCase( SECTION,   "Math.exp(Infinity)",   Number.POSITIVE_INFINITY,   Math.exp(Number.POSITIVE_INFINITY) );
  68     array[item++] = new TestCase( SECTION,   "Math.exp(-Infinity)",  0,              Math.exp(Number.NEGATIVE_INFINITY) );
  69
  70     return ( array );
  71 }
  72 function test() {
  73     for ( tc=0; tc < testcases.length; tc++ ) {
  74         testcases[tc].passed = writeTestCaseResult(
  75                             testcases[tc].expect,
  76                             testcases[tc].actual,
  77                             testcases[tc].description +" = "+
  78                             testcases[tc].actual );
  79
  80         testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
  81     }
  82     stopTest();
  83     return ( testcases );
  84 }