The Tor Browser: js/src/tests/ecma/Math/15.8.2.4.js@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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/. */

     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

    21 */

    23 var SECTION = "15.8.2.4";

    24 var VERSION = "ECMA_1";

    25 var TITLE   = "Math.atan()";

    26 var BUGNUMBER="77391";

    28 startTest();

    30 writeHeaderToLog( SECTION + " "+ TITLE);

    32 new TestCase( SECTION,

    33 	      "Math.atan.length",

    34 	      1,

    35 	      Math.atan.length );

    37 new TestCase( SECTION,

    38 	      "Math.atan()",

    39 	      Number.NaN,

    40 	      Math.atan() );

    42 new TestCase( SECTION,

    43 	      "Math.atan(void 0)",

    44 	      Number.NaN,

    45 	      Math.atan(void 0) );

    47 new TestCase( SECTION,

    48 	      "Math.atan(null)",

    49 	      0,

    50 	      Math.atan(null) );

    52 new TestCase( SECTION,

    53 	      "Math.atan(NaN)",

    54 	      Number.NaN,

    55 	      Math.atan(Number.NaN) );

    57 new TestCase( SECTION,

    58 	      "Math.atan('a string')",

    59 	      Number.NaN,

    60 	      Math.atan("a string") );

    62 new TestCase( SECTION,

    63 	      "Math.atan('0')",

    64 	      0,

    65 	      Math.atan('0') );

    67 new TestCase( SECTION,

    68 	      "Math.atan('1')",

    69 	      Math.PI/4,

    70 	      Math.atan('1') );

    72 new TestCase( SECTION,

    73 	      "Math.atan('-1')",

    74 	      -Math.PI/4,

    75 	      Math.atan('-1') );

    77 new TestCase( SECTION,

    78 	      "Math.atan('Infinity)",

    79 	      Math.PI/2,

    80 	      Math.atan('Infinity') );

    82 new TestCase( SECTION,

    83 	      "Math.atan('-Infinity)",

    84 	      -Math.PI/2,

    85 	      Math.atan('-Infinity') );

    87 new TestCase( SECTION,

    88 	      "Math.atan(0)",

    89 	      0,

    90 	      Math.atan(0)          );

    92 new TestCase( SECTION,

    93 	      "Math.atan(-0)",

    94 	      -0,

    95 	      Math.atan(-0)         );

    97 new TestCase( SECTION,

    98 	      "Infinity/Math.atan(-0)",

    99 	      -Infinity,

   100 	      Infinity/Math.atan(-0) );

   102 new TestCase( SECTION,

   103 	      "Math.atan(Infinity)",

   104 	      Math.PI/2,

   105 	      Math.atan(Number.POSITIVE_INFINITY) );

   107 new TestCase( SECTION,

   108 	      "Math.atan(-Infinity)",

   109 	      -Math.PI/2,

   110 	      Math.atan(Number.NEGATIVE_INFINITY) );

   112 new TestCase( SECTION,

   113 	      "Math.atan(1)",

   114 	      Math.PI/4,

   115 	      Math.atan(1)          );

   117 new TestCase( SECTION,

   118 	      "Math.atan(-1)",

   119 	      -Math.PI/4,

   120 	      Math.atan(-1)         );

   122 test();

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