michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: 
michael@0: /**
michael@0:    File Name:          15.8.2.2.js
michael@0:    ECMA Section:       15.8.2.2 acos( x )
michael@0:    Description:        return an approximation to the arc cosine of the
michael@0:    argument.  the result is expressed in radians and
michael@0:    range is from +0 to +PI.  special cases:
michael@0:    - if x is NaN, return NaN
michael@0:    - if x > 1, the result is NaN
michael@0:    - if x < -1, the result is NaN
michael@0:    - if x == 1, the result is +0
michael@0:    Author:             christine@netscape.com
michael@0:    Date:               7 july 1997
michael@0: */
michael@0: var SECTION = "15.8.2.2";
michael@0: var VERSION = "ECMA_1";
michael@0: startTest();
michael@0: var TITLE   = "Math.acos()";
michael@0: 
michael@0: writeHeaderToLog( SECTION + " "+ TITLE);
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos.length",
michael@0: 	      1,
michael@0: 	      Math.acos.length );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(void 0)",
michael@0: 	      Number.NaN,
michael@0: 	      Math.acos(void 0) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos()",
michael@0: 	      Number.NaN,
michael@0: 	      Math.acos() );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(null)",
michael@0: 	      Math.PI/2,
michael@0: 	      Math.acos(null) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(NaN)",
michael@0: 	      Number.NaN,
michael@0: 	      Math.acos(Number.NaN) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(a string)",
michael@0: 	      Number.NaN,
michael@0: 	      Math.acos("a string") );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos('0')",
michael@0: 	      Math.PI/2,
michael@0: 	      Math.acos('0') );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos('1')",
michael@0: 	      0,
michael@0: 	      Math.acos('1') );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos('-1')",
michael@0: 	      Math.PI,
michael@0: 	      Math.acos('-1') );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(1.00000001)",
michael@0: 	      Number.NaN,
michael@0: 	      Math.acos(1.00000001) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(11.00000001)",
michael@0: 	      Number.NaN,
michael@0: 	      Math.acos(-1.00000001) );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(1)",
michael@0: 	      0,
michael@0: 	      Math.acos(1)          );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(-1)",
michael@0: 	      Math.PI,
michael@0: 	      Math.acos(-1)         );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(0)",
michael@0: 	      Math.PI/2,
michael@0: 	      Math.acos(0)          );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(-0)",
michael@0: 	      Math.PI/2,
michael@0: 	      Math.acos(-0)         );
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(Math.SQRT1_2)",
michael@0: 	      Math.PI/4,
michael@0: 	      Math.acos(Math.SQRT1_2));
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(-Math.SQRT1_2)",
michael@0: 	      Math.PI/4*3,
michael@0: 	      Math.acos(-Math.SQRT1_2));
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(0.9999619230642)",
michael@0: 	      Math.PI/360,
michael@0: 	      Math.acos(0.9999619230642));
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "Math.acos(-3.0)",
michael@0: 	      Number.NaN,
michael@0: 	      Math.acos(-3.0));
michael@0: 
michael@0: test();