tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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15.8.2.4.js (2619B)

      1 /* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 
      7 /**
      8   File Name:          15.8.2.4.js
      9   ECMA Section:       15.8.2.4 atan( x )
     10   Description:        return an approximation to the arc tangent of the
     11   argument.  the result is expressed in radians and
     12   range is from -PI/2 to +PI/2.  special cases:
     13   - if x is NaN,  the result is NaN
     14   - if x == +0,   the result is +0
     15   - if x == -0,   the result is -0
     16   - if x == +Infinity,    the result is approximately +PI/2
     17   - if x == -Infinity,    the result is approximately -PI/2
     18   Author:             christine@netscape.com
     19   Date:               7 july 1997
     20 
     21 */
     22 
     23 var SECTION = "15.8.2.4";
     24 var TITLE   = "Math.atan()";
     25 var BUGNUMBER="77391";
     26 
     27 printBugNumber(BUGNUMBER);
     28 
     29 writeHeaderToLog( SECTION + " "+ TITLE);
     30 
     31 new TestCase(
     32       "Math.atan.length",
     33       1,
     34       Math.atan.length );
     35 
     36 new TestCase(
     37       "Math.atan()",
     38       Number.NaN,
     39       Math.atan() );
     40 
     41 new TestCase(
     42       "Math.atan(void 0)",
     43       Number.NaN,
     44       Math.atan(void 0) );
     45 
     46 new TestCase(
     47       "Math.atan(null)",
     48       0,
     49       Math.atan(null) );
     50 
     51 new TestCase(
     52       "Math.atan(NaN)",
     53       Number.NaN,
     54       Math.atan(Number.NaN) );
     55 
     56 new TestCase(
     57       "Math.atan('a string')",
     58       Number.NaN,
     59       Math.atan("a string") );
     60 
     61 new TestCase(
     62       "Math.atan('0')",
     63       0,
     64       Math.atan('0') );
     65 
     66 new TestCase(
     67       "Math.atan('1')",
     68       Math.PI/4,
     69       Math.atan('1') );
     70 
     71 new TestCase(
     72       "Math.atan('-1')",
     73       -Math.PI/4,
     74       Math.atan('-1') );
     75 
     76 new TestCase(
     77       "Math.atan('Infinity)",
     78       Math.PI/2,
     79       Math.atan('Infinity') );
     80 
     81 new TestCase(
     82       "Math.atan('-Infinity)",
     83       -Math.PI/2,
     84       Math.atan('-Infinity') );
     85 
     86 new TestCase(
     87       "Math.atan(0)",
     88       0,
     89       Math.atan(0)          );
     90 
     91 new TestCase(
     92       "Math.atan(-0)",	
     93       -0,
     94       Math.atan(-0)         );
     95 
     96 new TestCase(
     97       "Infinity/Math.atan(-0)",
     98       -Infinity,
     99       Infinity/Math.atan(-0) );
    100 
    101 new TestCase(
    102       "Math.atan(Infinity)",
    103       Math.PI/2,
    104       Math.atan(Number.POSITIVE_INFINITY) );
    105 
    106 new TestCase(
    107       "Math.atan(-Infinity)",
    108       -Math.PI/2,
    109       Math.atan(Number.NEGATIVE_INFINITY) );
    110 
    111 new TestCase(
    112       "Math.atan(1)",
    113       Math.PI/4,
    114       Math.atan(1)          );
    115 
    116 new TestCase(
    117       "Math.atan(-1)",
    118       -Math.PI/4,
    119       Math.atan(-1)         );
    120 
    121 test();