1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.math.util; 18 19 import org.apache.commons.math.MathException; 20 21 import junit.framework.TestCase; 22 23 /** 24 * @version $Revision: 566841 $ $Date: 2007-08-16 13:43:44 -0700 (Thu, 16 Aug 2007) $ 25 */ 26 public class ContinuedFractionTest extends TestCase { 27 /** 28 * Constructor for ContinuedFractionTest. 29 * @param name 30 */ 31 public ContinuedFractionTest(String name) { 32 super(name); 33 } 34 35 public void testGoldenRatio(){ 36 ContinuedFraction cf = new ContinuedFraction() { 37 private static final long serialVersionUID = 4696264881688589546L; 38 39 public double getA(int n, double x) { 40 return 1.0; 41 } 42 43 public double getB(int n, double x) { 44 return 1.0; 45 } 46 }; 47 48 try { 49 double gr = cf.evaluate(0.0, 10e-9); 50 assertEquals(1.61803399, gr, 10e-9); 51 } catch (MathException e) { 52 fail(e.getMessage()); 53 } 54 } 55 }