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: 15.8.2.2.js 24 ECMA Section: 15.8.2.2 acos( x ) 25 Description: return an approximation to the arc cosine of the 26 argument. the result is expressed in radians and 27 range is from +0 to +PI. special cases: 28 - if x is NaN, return NaN 29 - if x > 1, the result is NaN 30 - if x < -1, the result is NaN 31 - if x == 1, the result is +0 32 Author: christine (at) netscape.com 33 Date: 7 july 1997 34 */ 35 var SECTION = "15.8.2.2"; 36 var VERSION = "ECMA_1"; 37 startTest(); 38 var TITLE = "Math.acos()"; 39 40 writeHeaderToLog( SECTION + " "+ TITLE); 41 42 var testcases = getTestCases(); 43 test(); 44 45 function getTestCases() { 46 var array = new Array(); 47 var item = 0; 48 49 array[item++] = new TestCase( SECTION, "Math.acos.length", 1, Math.acos.length ); 50 51 array[item++] = new TestCase( SECTION, "Math.acos(void 0)", Number.NaN, Math.acos(void 0) ); 52 array[item++] = new TestCase( SECTION, "Math.acos()", Number.NaN, Math.acos() ); 53 array[item++] = new TestCase( SECTION, "Math.acos(null)", Math.PI/2, Math.acos(null) ); 54 array[item++] = new TestCase( SECTION, "Math.acos(NaN)", Number.NaN, Math.acos(Number.NaN) ); 55 56 array[item++] = new TestCase( SECTION, "Math.acos(a string)", Number.NaN, Math.acos("a string") ); 57 array[item++] = new TestCase( SECTION, "Math.acos('0')", Math.PI/2, Math.acos('0') ); 58 array[item++] = new TestCase( SECTION, "Math.acos('1')", 0, Math.acos('1') ); 59 array[item++] = new TestCase( SECTION, "Math.acos('-1')", Math.PI, Math.acos('-1') ); 60 61 array[item++] = new TestCase( SECTION, "Math.acos(1.00000001)", Number.NaN, Math.acos(1.00000001) ); 62 array[item++] = new TestCase( SECTION, "Math.acos(11.00000001)", Number.NaN, Math.acos(-1.00000001) ); 63 array[item++] = new TestCase( SECTION, "Math.acos(1)", 0, Math.acos(1) ); 64 array[item++] = new TestCase( SECTION, "Math.acos(-1)", Math.PI, Math.acos(-1) ); 65 array[item++] = new TestCase( SECTION, "Math.acos(0)", Math.PI/2, Math.acos(0) ); 66 array[item++] = new TestCase( SECTION, "Math.acos(-0)", Math.PI/2, Math.acos(-0) ); 67 array[item++] = new TestCase( SECTION, "Math.acos(Math.SQRT1_2)", Math.PI/4, Math.acos(Math.SQRT1_2)); 68 array[item++] = new TestCase( SECTION, "Math.acos(-Math.SQRT1_2)", Math.PI/4*3, Math.acos(-Math.SQRT1_2)); 69 array[item++] = new TestCase( SECTION, "Math.acos(0.9999619230642)", Math.PI/360, Math.acos(0.9999619230642)); 70 71 return ( array ); 72 } 73 74 function test() { 75 for ( tc=0; tc < testcases.length; tc++ ) { 76 testcases[tc].passed = writeTestCaseResult( 77 testcases[tc].expect, 78 testcases[tc].actual, 79 testcases[tc].description +" = "+ 80 testcases[tc].actual ); 81 82 testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; 83 } 84 stopTest(); 85 return ( testcases ); 86 } 87
