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/
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.
11 * The Original Code is Mozilla Communicator client code, released March
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
23 File Name: 15.8.2.5.js
24 ECMA Section: 15.8.2.5 atan2( y, x )
27 Author: christine@netscape.com
31 var SECTION = "15.8.2.5";
32 var VERSION = "ECMA_1";
34 var TITLE = "Math.atan2(x,y)";
35 var BUGNUMBER="76111";
37 writeHeaderToLog( SECTION + " "+ TITLE);
39 var testcases = getTestCases();
42 function getTestCases() {
43 var array = new Array();
46 array[item++] = new TestCase( SECTION, "Math.atan2.length", 2, Math.atan2.length );
48 array[item++] = new TestCase( SECTION, "Math.atan2(NaN, 0)", Number.NaN, Math.atan2(Number.NaN,0) );
49 array[item++] = new TestCase( SECTION, "Math.atan2(null, null)", 0, Math.atan2(null, null) );
50 array[item++] = new TestCase( SECTION, "Math.atan2(void 0, void 0)", Number.NaN, Math.atan2(void 0, void 0) );
51 array[item++] = new TestCase( SECTION, "Math.atan2()", Number.NaN, Math.atan2() );
53 array[item++] = new TestCase( SECTION, "Math.atan2(0, NaN)", Number.NaN, Math.atan2(0,Number.NaN) );
54 array[item++] = new TestCase( SECTION, "Math.atan2(1, 0)", Math.PI/2, Math.atan2(1,0) );
55 array[item++] = new TestCase( SECTION, "Math.atan2(1,-0)", Math.PI/2, Math.atan2(1,-0) );
56 array[item++] = new TestCase( SECTION, "Math.atan2(0,0.001)", 0, Math.atan2(0,0.001) );
57 array[item++] = new TestCase( SECTION, "Math.atan2(0,0)", 0, Math.atan2(0,0) );
58 array[item++] = new TestCase( SECTION, "Math.atan2(0, -0)", Math.PI, Math.atan2(0,-0) );
59 array[item++] = new TestCase( SECTION, "Math.atan2(0, -1)", Math.PI, Math.atan2(0, -1) );
61 array[item++] = new TestCase( SECTION, "Math.atan2(-0, 1)", -0, Math.atan2(-0, 1) );
62 array[item++] = new TestCase( SECTION, "Infinity/Math.atan2(-0, 1)", -Infinity, Infinity/Math.atan2(-0,1) );
64 array[item++] = new TestCase( SECTION, "Math.atan2(-0, 0)", -0, Math.atan2(-0,0) );
65 array[item++] = new TestCase( SECTION, "Math.atan2(-0, -0)", -Math.PI, Math.atan2(-0, -0) );
66 array[item++] = new TestCase( SECTION, "Math.atan2(-0, -1)", -Math.PI, Math.atan2(-0, -1) );
67 array[item++] = new TestCase( SECTION, "Math.atan2(-1, 0)", -Math.PI/2, Math.atan2(-1, 0) );
68 array[item++] = new TestCase( SECTION, "Math.atan2(-1, -0)", -Math.PI/2, Math.atan2(-1, -0) );
69 array[item++] = new TestCase( SECTION, "Math.atan2(1, Infinity)", 0, Math.atan2(1, Number.POSITIVE_INFINITY) );
70 array[item++] = new TestCase( SECTION, "Math.atan2(1,-Infinity)", Math.PI, Math.atan2(1, Number.NEGATIVE_INFINITY) );
72 array[item++] = new TestCase( SECTION, "Math.atan2(-1, Infinity)", -0, Math.atan2(-1,Number.POSITIVE_INFINITY) );
73 array[item++] = new TestCase( SECTION, "Infinity/Math.atan2(-1, Infinity)", -Infinity, Infinity/Math.atan2(-1,Infinity) );
75 array[item++] = new TestCase( SECTION, "Math.atan2(-1,-Infinity)", -Math.PI, Math.atan2(-1,Number.NEGATIVE_INFINITY) );
76 array[item++] = new TestCase( SECTION, "Math.atan2(Infinity, 0)", Math.PI/2, Math.atan2(Number.POSITIVE_INFINITY, 0) );
77 array[item++] = new TestCase( SECTION, "Math.atan2(Infinity, 1)", Math.PI/2, Math.atan2(Number.POSITIVE_INFINITY, 1) );
78 array[item++] = new TestCase( SECTION, "Math.atan2(Infinity,-1)", Math.PI/2, Math.atan2(Number.POSITIVE_INFINITY,-1) );
79 array[item++] = new TestCase( SECTION, "Math.atan2(Infinity,-0)", Math.PI/2, Math.atan2(Number.POSITIVE_INFINITY,-0) );
80 array[item++] = new TestCase( SECTION, "Math.atan2(-Infinity, 0)", -Math.PI/2, Math.atan2(Number.NEGATIVE_INFINITY, 0) );
81 array[item++] = new TestCase( SECTION, "Math.atan2(-Infinity,-0)", -Math.PI/2, Math.atan2(Number.NEGATIVE_INFINITY,-0) );
82 array[item++] = new TestCase( SECTION, "Math.atan2(-Infinity, 1)", -Math.PI/2, Math.atan2(Number.NEGATIVE_INFINITY, 1) );
83 array[item++] = new TestCase( SECTION, "Math.atan2(-Infinity, -1)", -Math.PI/2, Math.atan2(Number.NEGATIVE_INFINITY,-1) );
84 array[item++] = new TestCase( SECTION, "Math.atan2(Infinity, Infinity)", Math.PI/4, Math.atan2(Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY) );
85 array[item++] = new TestCase( SECTION, "Math.atan2(Infinity, -Infinity)", 3*Math.PI/4, Math.atan2(Number.POSITIVE_INFINITY, Number.NEGATIVE_INFINITY) );
86 array[item++] = new TestCase( SECTION, "Math.atan2(-Infinity, Infinity)", -Math.PI/4, Math.atan2(Number.NEGATIVE_INFINITY, Number.POSITIVE_INFINITY) );
87 array[item++] = new TestCase( SECTION, "Math.atan2(-Infinity, -Infinity)", -3*Math.PI/4, Math.atan2(Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY) );
88 array[item++] = new TestCase( SECTION, "Math.atan2(-1, 1)", -Math.PI/4, Math.atan2( -1, 1) );
94 for ( tc=0; tc < testcases.length; tc++ ) {
95 testcases[tc].passed = writeTestCaseResult(
98 testcases[tc].description +" = "+
99 testcases[tc].actual );
101 testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
104 return ( testcases );