1 /* 2 * jDTAUS Core Test Suite 3 * Copyright (C) 2005 Christian Schulte 4 * <cs@schulte.it> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 19 * 20 */ 21 package org.jdtaus.core.lang.spi.it; 22 23 import junit.framework.Assert; 24 import org.jdtaus.core.lang.ExceptionEvent; 25 import org.jdtaus.core.lang.ExceptionEventSource; 26 import org.jdtaus.core.lang.ExceptionListener; 27 import org.jdtaus.core.lang.it.ExceptionEventSourceTest; 28 import org.jdtaus.core.lang.spi.Executor; 29 30 /** 31 * Testcase for {@code Executor} implementations. 32 * 33 * @author <a href="mailto:cs@schulte.it">Christian Schulte</a> 34 * @version $JDTAUS: ExecutorTest.java 8641 2012-09-27 06:45:17Z schulte $ 35 */ 36 public abstract class ExecutorTest extends ExceptionEventSourceTest 37 { 38 //--ExceptionEventSourceTest------------------------------------------------ 39 40 /** 41 * {@inheritDoc} 42 * @see #getExecutor() 43 */ 44 public final ExceptionEventSource getExceptionEventSource() 45 { 46 return this.getExecutor(); 47 } 48 49 //------------------------------------------------ExceptionEventSourceTest-- 50 //--ExecutorTest------------------------------------------------------------ 51 52 /** 53 * Gets the {@code Executor} implementation tests are performed with. 54 * 55 * @return the {@code Executor} implementation tests are performed with. 56 */ 57 public abstract Executor getExecutor(); 58 59 //------------------------------------------------------------ExecutorTest-- 60 //--Tests------------------------------------------------------------------- 61 62 /** Exception expected to be reported. */ 63 public static final class ExecutionException extends RuntimeException 64 { 65 } 66 67 /** {@code Runnable} throwing {@code ExecutionException}. */ 68 public static final Runnable runnable = new Runnable() 69 { 70 71 public void run() 72 { 73 throw new ExecutionException(); 74 } 75 76 }; 77 78 /** {@code ExceptionListener} providing the last reported event. */ 79 public static final class TestListener implements ExceptionListener 80 { 81 82 /** The last reported event. */ 83 private ExceptionEvent event; 84 85 /** 86 * Gets the last reported event. 87 * 88 * @return the last reported event. 89 */ 90 public ExceptionEvent getEvent() 91 { 92 return this.event; 93 } 94 95 public void onException( final ExceptionEvent event ) 96 { 97 this.event = event; 98 } 99 100 } 101 102 /** 103 * Tests the {@link Executor#executeAsynchronously(Runnable)} method to 104 * handle {@code null} arguments correctly by throwing a corresponding 105 * {@code NullPointerException}. 106 */ 107 public void testNullArguments() throws Exception 108 { 109 super.testNullArguments(); 110 111 assert this.getExecutor() != null; 112 113 try 114 { 115 this.getExecutor().executeAsynchronously( null ); 116 throw new AssertionError(); 117 } 118 catch ( NullPointerException e ) 119 { 120 Assert.assertNotNull( e.getMessage() ); 121 System.out.println( e.toString() ); 122 } 123 124 } 125 126 /** 127 * Tests the {@link Executor#executeAsynchronously(Runnable)} method to 128 * report any exceptions thrown during execution. 129 */ 130 public void testOnException() throws Exception 131 { 132 assert this.getExecutor() != null; 133 134 final TestListener listener = new TestListener(); 135 this.getExecutor().addExceptionListener( listener ); 136 this.getExecutor().executeAsynchronously( runnable ); 137 138 // Wait 5 seconds and test the listener. 139 Thread.sleep( 5000L ); 140 141 Assert.assertTrue( listener.getEvent(). 142 getException() instanceof ExecutionException ); 143 144 } 145 146 //-------------------------------------------------------------------Tests-- 147 }