1 /* 2 * Copyright 2011 Andres Gomez Casanova. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are 6 * permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY Andres Gomez Casanova ``AS IS'' AND ANY EXPRESS 16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 18 * EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 22 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 24 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * The views and conclusions contained in the software and documentation are 27 * those of the authors and should not be interpreted as representing official 28 * policies, either expressed or implied, of Andres Gomez Casanova. 29 */ 30 package net.sf.randomjunit; 31 32 import java.util.Collections; 33 import java.util.List; 34 35 import org.junit.runner.Runner; 36 import org.junit.runners.Suite; 37 import org.junit.runners.model.InitializationError; 38 import org.junit.runners.model.RunnerBuilder; 39 40 /** 41 * This class randomize the execution of test suites. 42 * <p> 43 * Based on <a href= 44 * "http://stackoverflow.com/questions/1444314/how-can-i-make-my-junit-tests-run-in-random-order" 45 * >http://stackoverflow.com/questions/1444314/how-can-i-make-my-junit 46 * -tests-run-in-random-order</a> 47 * <p> 48 * <b>Control Version</b> 49 * <p> 50 * <ul> 51 * <li>1.0.0 Class creation.</li> 52 * </ul> 53 * 54 * @author Andres Gomez Casanova <a 55 * href="mailto:a n g o c a at y a h o o dot c o m" >(AngocA)</a> 56 * @version 1.0.0 2011-06-13 57 */ 58 public class RandomSuite extends Suite { 59 60 /** 61 * Please see: {@link org.junit.runners.Suite#Suite(Class, RunnerBuilder)}. 62 * 63 * @param klass 64 * the root class. 65 * @param builder 66 * builds runners for classes in the suite 67 * @throws InitializationError 68 * If any error. 69 */ 70 public RandomSuite(Class<?> klass, RunnerBuilder builder) 71 throws InitializationError { 72 super(klass, builder); 73 } 74 75 /** 76 * Please see: {@link org.junit.runners.Suite#Suite(RunnerBuilder, Class[])} 77 * . 78 * 79 * @param builder 80 * builds runners for classes in the suite. 81 * @param classes 82 * the classes in the suite. 83 * @throws InitializationError 84 * If any error. 85 */ 86 public RandomSuite(RunnerBuilder builder, Class<?>[] classes) 87 throws InitializationError { 88 super(builder, classes); 89 } 90 91 /** 92 * @param klass 93 * @param runners 94 * @throws InitializationError 95 */ 96 protected RandomSuite(Class<?> klass, List<Runner> runners) 97 throws InitializationError { 98 super(klass, runners); 99 } 100 101 /* 102 * (non-Javadoc) 103 * 104 * @see org.junit.runners.Suite#getChildren() 105 */ 106 @Override 107 protected List<Runner> getChildren() { 108 final List<Runner> children = super.getChildren(); 109 Collections.shuffle(children); 110 return children; 111 } 112 113 }