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: 15.8.2.7.js 24 ECMA Section: 15.8.2.7 cos( x ) 25 Description: return an approximation to the cosine of the 26 argument. argument is expressed in radians 27 Author: christine (at) netscape.com 28 Date: 7 july 1997 29 30 */ 31 32 var SECTION = "15.8.2.7"; 33 var VERSION = "ECMA_1"; 34 startTest(); 35 var TITLE = "Math.cos(x)"; 36 37 writeHeaderToLog( SECTION + " "+ TITLE); 38 39 var testcases = getTestCases(); 40 test(); 41 42 function getTestCases() { 43 var array = new Array(); 44 var item = 0; 45 46 array[item++] = new TestCase( SECTION, "Math.cos.length", 1, Math.cos.length ); 47 48 array[item++] = new TestCase( SECTION, "Math.cos()", Number.NaN, Math.cos() ); 49 array[item++] = new TestCase( SECTION, "Math.cos(void 0)", Number.NaN, Math.cos(void 0) ); 50 array[item++] = new TestCase( SECTION, "Math.cos(false)", 1, Math.cos(false) ); 51 array[item++] = new TestCase( SECTION, "Math.cos(null)", 1, Math.cos(null) ); 52 53 array[item++] = new TestCase( SECTION, "Math.cos('0')", 1, Math.cos('0') ); 54 array[item++] = new TestCase( SECTION, "Math.cos('Infinity')", Number.NaN, Math.cos("Infinity") ); 55 array[item++] = new TestCase( SECTION, "Math.cos('3.14159265359')", -1, Math.cos('3.14159265359') ); 56 57 array[item++] = new TestCase( SECTION, "Math.cos(NaN)", Number.NaN, Math.cos(Number.NaN) ); 58 array[item++] = new TestCase( SECTION, "Math.cos(0)", 1, Math.cos(0) ); 59 array[item++] = new TestCase( SECTION, "Math.cos(-0)", 1, Math.cos(-0) ); 60 array[item++] = new TestCase( SECTION, "Math.cos(Infinity)", Number.NaN, Math.cos(Number.POSITIVE_INFINITY) ); 61 array[item++] = new TestCase( SECTION, "Math.cos(-Infinity)", Number.NaN, Math.cos(Number.NEGATIVE_INFINITY) ); 62 array[item++] = new TestCase( SECTION, "Math.cos(0.7853981633974)", 0.7071067811865, Math.cos(0.7853981633974) ); 63 array[item++] = new TestCase( SECTION, "Math.cos(1.570796326795)", 0, Math.cos(1.570796326795) ); 64 array[item++] = new TestCase( SECTION, "Math.cos(2.356194490192)", -0.7071067811865, Math.cos(2.356194490192) ); 65 array[item++] = new TestCase( SECTION, "Math.cos(3.14159265359)", -1, Math.cos(3.14159265359) ); 66 array[item++] = new TestCase( SECTION, "Math.cos(3.926990816987)", -0.7071067811865, Math.cos(3.926990816987) ); 67 array[item++] = new TestCase( SECTION, "Math.cos(4.712388980385)", 0, Math.cos(4.712388980385) ); 68 array[item++] = new TestCase( SECTION, "Math.cos(5.497787143782)", 0.7071067811865, Math.cos(5.497787143782) ); 69 array[item++] = new TestCase( SECTION, "Math.cos(Math.PI*2)", 1, Math.cos(Math.PI*2) ); 70 array[item++] = new TestCase( SECTION, "Math.cos(Math.PI/4)", Math.SQRT2/2, Math.cos(Math.PI/4) ); 71 array[item++] = new TestCase( SECTION, "Math.cos(Math.PI/2)", 0, Math.cos(Math.PI/2) ); 72 array[item++] = new TestCase( SECTION, "Math.cos(3*Math.PI/4)", -Math.SQRT2/2, Math.cos(3*Math.PI/4) ); 73 array[item++] = new TestCase( SECTION, "Math.cos(Math.PI)", -1, Math.cos(Math.PI) ); 74 array[item++] = new TestCase( SECTION, "Math.cos(5*Math.PI/4)", -Math.SQRT2/2, Math.cos(5*Math.PI/4) ); 75 array[item++] = new TestCase( SECTION, "Math.cos(3*Math.PI/2)", 0, Math.cos(3*Math.PI/2) ); 76 array[item++] = new TestCase( SECTION, "Math.cos(7*Math.PI/4)", Math.SQRT2/2, Math.cos(7*Math.PI/4) ); 77 array[item++] = new TestCase( SECTION, "Math.cos(Math.PI*2)", 1, Math.cos(2*Math.PI) ); 78 array[item++] = new TestCase( SECTION, "Math.cos(-0.7853981633974)", 0.7071067811865, Math.cos(-0.7853981633974) ); 79 array[item++] = new TestCase( SECTION, "Math.cos(-1.570796326795)", 0, Math.cos(-1.570796326795) ); 80 array[item++] = new TestCase( SECTION, "Math.cos(-2.3561944901920)", -.7071067811865, Math.cos(2.3561944901920) ); 81 array[item++] = new TestCase( SECTION, "Math.cos(-3.14159265359)", -1, Math.cos(3.14159265359) ); 82 array[item++] = new TestCase( SECTION, "Math.cos(-3.926990816987)", -0.7071067811865, Math.cos(3.926990816987) ); 83 array[item++] = new TestCase( SECTION, "Math.cos(-4.712388980385)", 0, Math.cos(4.712388980385) ); 84 array[item++] = new TestCase( SECTION, "Math.cos(-5.497787143782)", 0.7071067811865, Math.cos(5.497787143782) ); 85 array[item++] = new TestCase( SECTION, "Math.cos(-6.28318530718)", 1, Math.cos(6.28318530718) ); 86 array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI/4)", Math.SQRT2/2, Math.cos(-Math.PI/4) ); 87 array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI/2)", 0, Math.cos(-Math.PI/2) ); 88 array[item++] = new TestCase( SECTION, "Math.cos(-3*Math.PI/4)", -Math.SQRT2/2, Math.cos(-3*Math.PI/4) ); 89 array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI)", -1, Math.cos(-Math.PI) ); 90 array[item++] = new TestCase( SECTION, "Math.cos(-5*Math.PI/4)", -Math.SQRT2/2, Math.cos(-5*Math.PI/4) ); 91 array[item++] = new TestCase( SECTION, "Math.cos(-3*Math.PI/2)", 0, Math.cos(-3*Math.PI/2) ); 92 array[item++] = new TestCase( SECTION, "Math.cos(-7*Math.PI/4)", Math.SQRT2/2, Math.cos(-7*Math.PI/4) ); 93 array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI*2)", 1, Math.cos(-Math.PI*2) ); 94 95 return ( array ); 96 } 97 98 99 function test() { 100 for ( tc=0; tc < testcases.length; tc++ ) { 101 testcases[tc].passed = writeTestCaseResult( 102 testcases[tc].expect, 103 testcases[tc].actual, 104 testcases[tc].description +" = "+ 105 testcases[tc].actual ); 106 107 testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; 108 } 109 stopTest(); 110 return ( testcases ); 111 } 112
