KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > commons > math > util > ContinuedFractionTest


1 /*
2  * Copyright 2003-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */

16 package org.apache.commons.math.util;
17
18 import org.apache.commons.math.MathException;
19
20 import junit.framework.TestCase;
21
22 /**
23  * @version $Revision$ $Date: 2005-06-26 15:25:41 -0700 (Sun, 26 Jun 2005) $
24  */

25 public class ContinuedFractionTest extends TestCase {
26     /**
27      * Constructor for ContinuedFractionTest.
28      * @param name
29      */

30     public ContinuedFractionTest(String JavaDoc name) {
31         super(name);
32     }
33
34     public void testGoldenRation(){
35         ContinuedFraction cf = new ContinuedFraction() {
36             public double getA(int n, double x) {
37                 return 1.0;
38             }
39
40             public double getB(int n, double x) {
41                 return 1.0;
42             }
43         };
44         
45         try {
46             double gr = cf.evaluate(0.0, 10e-9);
47             assertEquals(1.61803399, gr, 10e-9);
48         } catch (MathException e) {
49             fail(e.getMessage());
50         }
51     }
52 }
53
Popular Tags