/* The contents of this file are subject to the Netscape Public * License Version 1.1 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or * implied. See the License for the specific language governing * rights and limitations under the License. * * The Original Code is Mozilla Communicator client code, released March * 31, 1998. * * The Initial Developer of the Original Code is Netscape Communications * Corporation. Portions created by Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All * Rights Reserved. * * Contributor(s): * */ /** File Name: 15.8.2.7.js ECMA Section: 15.8.2.7 cos( x ) Description: return an approximation to the cosine of the argument. argument is expressed in radians Author: christine@netscape.com Date: 7 july 1997 */ var SECTION = "15.8.2.7"; var VERSION = "ECMA_1"; startTest(); var TITLE = "Math.cos(x)"; writeHeaderToLog( SECTION + " "+ TITLE); var testcases = getTestCases(); test(); function getTestCases() { var array = new Array(); var item = 0; array[item++] = new TestCase( SECTION, "Math.cos.length", 1, Math.cos.length ); array[item++] = new TestCase( SECTION, "Math.cos()", Number.NaN, Math.cos() ); array[item++] = new TestCase( SECTION, "Math.cos(void 0)", Number.NaN, Math.cos(void 0) ); array[item++] = new TestCase( SECTION, "Math.cos(false)", 1, Math.cos(false) ); array[item++] = new TestCase( SECTION, "Math.cos(null)", 1, Math.cos(null) ); array[item++] = new TestCase( SECTION, "Math.cos('0')", 1, Math.cos('0') ); array[item++] = new TestCase( SECTION, "Math.cos('Infinity')", Number.NaN, Math.cos("Infinity") ); array[item++] = new TestCase( SECTION, "Math.cos('3.14159265359')", -1, Math.cos('3.14159265359') ); array[item++] = new TestCase( SECTION, "Math.cos(NaN)", Number.NaN, Math.cos(Number.NaN) ); array[item++] = new TestCase( SECTION, "Math.cos(0)", 1, Math.cos(0) ); array[item++] = new TestCase( SECTION, "Math.cos(-0)", 1, Math.cos(-0) ); array[item++] = new TestCase( SECTION, "Math.cos(Infinity)", Number.NaN, Math.cos(Number.POSITIVE_INFINITY) ); array[item++] = new TestCase( SECTION, "Math.cos(-Infinity)", Number.NaN, Math.cos(Number.NEGATIVE_INFINITY) ); array[item++] = new TestCase( SECTION, "Math.cos(0.7853981633974)", 0.7071067811865, Math.cos(0.7853981633974) ); array[item++] = new TestCase( SECTION, "Math.cos(1.570796326795)", 0, Math.cos(1.570796326795) ); array[item++] = new TestCase( SECTION, "Math.cos(2.356194490192)", -0.7071067811865, Math.cos(2.356194490192) ); array[item++] = new TestCase( SECTION, "Math.cos(3.14159265359)", -1, Math.cos(3.14159265359) ); array[item++] = new TestCase( SECTION, "Math.cos(3.926990816987)", -0.7071067811865, Math.cos(3.926990816987) ); array[item++] = new TestCase( SECTION, "Math.cos(4.712388980385)", 0, Math.cos(4.712388980385) ); array[item++] = new TestCase( SECTION, "Math.cos(5.497787143782)", 0.7071067811865, Math.cos(5.497787143782) ); array[item++] = new TestCase( SECTION, "Math.cos(Math.PI*2)", 1, Math.cos(Math.PI*2) ); array[item++] = new TestCase( SECTION, "Math.cos(Math.PI/4)", Math.SQRT2/2, Math.cos(Math.PI/4) ); array[item++] = new TestCase( SECTION, "Math.cos(Math.PI/2)", 0, Math.cos(Math.PI/2) ); array[item++] = new TestCase( SECTION, "Math.cos(3*Math.PI/4)", -Math.SQRT2/2, Math.cos(3*Math.PI/4) ); array[item++] = new TestCase( SECTION, "Math.cos(Math.PI)", -1, Math.cos(Math.PI) ); array[item++] = new TestCase( SECTION, "Math.cos(5*Math.PI/4)", -Math.SQRT2/2, Math.cos(5*Math.PI/4) ); array[item++] = new TestCase( SECTION, "Math.cos(3*Math.PI/2)", 0, Math.cos(3*Math.PI/2) ); array[item++] = new TestCase( SECTION, "Math.cos(7*Math.PI/4)", Math.SQRT2/2, Math.cos(7*Math.PI/4) ); array[item++] = new TestCase( SECTION, "Math.cos(Math.PI*2)", 1, Math.cos(2*Math.PI) ); array[item++] = new TestCase( SECTION, "Math.cos(-0.7853981633974)", 0.7071067811865, Math.cos(-0.7853981633974) ); array[item++] = new TestCase( SECTION, "Math.cos(-1.570796326795)", 0, Math.cos(-1.570796326795) ); array[item++] = new TestCase( SECTION, "Math.cos(-2.3561944901920)", -.7071067811865, Math.cos(2.3561944901920) ); array[item++] = new TestCase( SECTION, "Math.cos(-3.14159265359)", -1, Math.cos(3.14159265359) ); array[item++] = new TestCase( SECTION, "Math.cos(-3.926990816987)", -0.7071067811865, Math.cos(3.926990816987) ); array[item++] = new TestCase( SECTION, "Math.cos(-4.712388980385)", 0, Math.cos(4.712388980385) ); array[item++] = new TestCase( SECTION, "Math.cos(-5.497787143782)", 0.7071067811865, Math.cos(5.497787143782) ); array[item++] = new TestCase( SECTION, "Math.cos(-6.28318530718)", 1, Math.cos(6.28318530718) ); array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI/4)", Math.SQRT2/2, Math.cos(-Math.PI/4) ); array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI/2)", 0, Math.cos(-Math.PI/2) ); array[item++] = new TestCase( SECTION, "Math.cos(-3*Math.PI/4)", -Math.SQRT2/2, Math.cos(-3*Math.PI/4) ); array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI)", -1, Math.cos(-Math.PI) ); array[item++] = new TestCase( SECTION, "Math.cos(-5*Math.PI/4)", -Math.SQRT2/2, Math.cos(-5*Math.PI/4) ); array[item++] = new TestCase( SECTION, "Math.cos(-3*Math.PI/2)", 0, Math.cos(-3*Math.PI/2) ); array[item++] = new TestCase( SECTION, "Math.cos(-7*Math.PI/4)", Math.SQRT2/2, Math.cos(-7*Math.PI/4) ); array[item++] = new TestCase( SECTION, "Math.cos(-Math.PI*2)", 1, Math.cos(-Math.PI*2) ); return ( array ); } function test() { for ( tc=0; tc < testcases.length; tc++ ) { testcases[tc].passed = writeTestCaseResult( testcases[tc].expect, testcases[tc].actual, testcases[tc].description +" = "+ testcases[tc].actual ); testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; } stopTest(); return ( testcases ); }