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git-svn-id: http://multithreadedtc-junit4.googlecode.com/svn/trunk/MultithreadedTC@2 7aeca032-9163-11de-bb70-8db92513eca4
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‎CHANGELOG.txt

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CHANGELOG
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1.01 August 13, 2007
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- - Update to better support translation into JDK 1.4 compatible bytecode using Retrotranslator
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1.0 May 10, 2007
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- - Initial Release

‎LICENSE.txt

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Copyright (c) 2007, University of Maryland
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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* Neither the name of the University of Maryland nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

‎README-JDK14.txt

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The jar file MultithreadedTC-XXX-jdk14.jar is compiled for JDK 1.4 and requires all the libraries
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distributed with Retrotranslator (http://retrotranslator.sourceforge.net/)

‎README.txt

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For more information about MultithreadedTC, visit
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http://www.cs.umd.edu/projects/PL/multithreadedtc/
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To use this library, you need JUnit (3.8 or 4.*). Get it at
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http://www.junit.org
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MultithreadedTC is released under the BSD License,
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http://www.opensource.org/licenses/bsd-license.php

‎build.xml

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<project name="MultithreadedTC" default="distjar" basedir=".">
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<property name="release.id" value="1.01" />
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<property name="jarfile" value="MultithreadedTC-${release.id}.jar" />
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<property name="jarfile14" value="MultithreadedTC-${release.id}-jdk14.jar" />
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<property name="sourcename" value="MultithreadedTC-${release.id}-source" />
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<property name="info.files" value="README.txt,LICENSE.txt,CHANGELOG.txt" />
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<property name="all.info.files" value="${info.files},README-JDK14.txt" />
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<!-- Create distribution jar -->
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<target name="distjar">
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<jar destfile="${jarfile}" update="true">
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<fileset dir="bin" includes="edu/**/*class" />
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<fileset dir="src" includes="edu/**/*.java" />
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<fileset dir="." includes="${info.files}" />
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</jar>
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</target>
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<!-- Create Source Distribution zip -->
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<target name="sourcezip" depends="distjar,distjar-jdk14">
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<zip destfile="${sourcename}.zip" update="true">
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<zipfileset dir="." includes="src/**" excludes="**.svn**" prefix="${sourcename}"/>
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<zipfileset dir="." includes="examples/**" excludes="**.svn**" prefix="${sourcename}"/>
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<zipfileset dir="." includes="web/**" excludes="**.svn**,sanity/**" prefix="${sourcename}"/>
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<zipfileset dir="." includes="${all.info.files}" prefix="${sourcename}"/>
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<zipfileset dir="." includes=".project,.classpath,build.xml" prefix="${sourcename}"/>
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<zipfileset dir="." includes="${jarfile}" prefix="${sourcename}"/>
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<zipfileset dir="." includes="${jarfile14}" prefix="${sourcename}"/>
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</zip>
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</target>
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<!-- Create Website distribution zip -->
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<target name="webzip">
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<zip destfile="MultithreadedTCWebsite.zip" update="true">
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<fileset dir="web" includes="**" excludes="**.svn**" />
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</zip>
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</target>
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<!-- Retro Tasks: Create a Jar for 1.4 -->
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<!-- The 'retrotranslator' task creates a jar file with JDK 1.4 compatible class files.
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This task requires all the jar files in the retrotranslator distribution to be in
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the lib folder. Find these at http://retrotranslator.sourceforge.net/ -->
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<target name="distjar-jdk14">
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<path id="retroclasspath">
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<fileset dir="lib" includes="**/*.jar"/>
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</path>
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<taskdef name="retrotranslator" classpathref="retroclasspath"
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classname="net.sf.retrotranslator.transformer.RetrotranslatorTask" />
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<retrotranslator destjar="${jarfile14}" verify="false">
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<fileset dir="bin" includes="edu/**/*.class"/>
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<fileset dir="." includes="${all.info.files}" />
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</retrotranslator>
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</target>
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</project>

‎examples/plain_vs_mtc/CompareAndSetTestsMTC.java

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package plain_vs_mtc;
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import edu.umd.cs.mtc.MultithreadedTestCase;
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import edu.umd.cs.mtc.Threaded;
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import java.util.concurrent.atomic.AtomicInteger;
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import org.junit.Before;
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import org.junit.Test;
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import static org.junit.Assert.assertEquals;
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import static junit.framework.Assert.assertTrue;
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/**
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* @author <a href="mailto:[email protected]">Jan Van Besien</a>
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*/
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public class CompareAndSetTestsMTC extends MultithreadedTestCase
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{
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AtomicInteger ai;
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@Before
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public void initialize()
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{
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ai = new AtomicInteger(1);
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}
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@Threaded
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public void thread1()
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{
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while (!ai.compareAndSet(2, 3)) Thread.yield();
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}
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@Threaded
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public void thread2()
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{
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assertTrue(ai.compareAndSet(1, 2));
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}
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@Test
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public void finish()
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{
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assertEquals(ai.get(), 3);
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}
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}

‎examples/plain_vs_mtc/CompareAndSetTestsPlain.java

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package plain_vs_mtc;
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import edu.umd.cs.mtc.MultithreadedTestCase;
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import edu.umd.cs.mtc.Threaded;
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import static junit.framework.Assert.assertTrue;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import org.junit.Before;
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import org.junit.Test;
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import java.util.concurrent.atomic.AtomicInteger;
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/**
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* compareAndSet in one thread enables another waiting for value to succeed
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*/
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public class CompareAndSetTestsPlain
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{
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/* NOTES
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* - Plain version requires a join before final asserts
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* - MTC version does not need to check if thread is alive
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*/
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@Test
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public void testCompareAndSet() throws InterruptedException
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{
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final AtomicInteger ai = new AtomicInteger(1);
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Thread t = new Thread(new Runnable()
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{
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public void run()
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{
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while (!ai.compareAndSet(2, 3)) Thread.yield();
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}
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});
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t.start();
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assertTrue(ai.compareAndSet(1, 2));
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t.join(2500);
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assertFalse(t.isAlive());
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assertEquals(ai.get(), 3);
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}
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}

‎examples/plain_vs_mtc/InterruptBlockedTestsMTC.java

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package plain_vs_mtc;
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import edu.umd.cs.mtc.MultithreadedTestCase;
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import edu.umd.cs.mtc.Threaded;
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import java.util.concurrent.Semaphore;
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import org.junit.Before;
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import org.junit.Test;
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import static org.junit.Assert.fail;
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/**
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* @author <a href="mailto:[email protected]">Jan Van Besien</a>
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*/
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public class InterruptBlockedTestsMTC extends MultithreadedTestCase
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{
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Semaphore s;
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@Before
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public void initialize()
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{
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s = new Semaphore(0);
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}
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@Threaded("1")
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public void thread1()
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{
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try
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{
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s.acquire();
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fail("should throw exception");
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} catch (InterruptedException success)
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{
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assertTick(1);
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}
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}
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@Threaded
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public void thread2()
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{
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waitForTick(1);
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getThread(1).interrupt();
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}
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@Test
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public void test()
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{
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}
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}

‎examples/plain_vs_mtc/InterruptBlockedTestsPlain.java

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package plain_vs_mtc;
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import java.util.concurrent.Semaphore;
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import static junit.framework.Assert.assertFalse;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.After;
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import static org.junit.Assert.fail;
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/**
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* Test that a waiting acquire blocks interruptibly
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*/
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public class InterruptBlockedTestsPlain
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{
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/* NOTES
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* - Failures in threads require additional work in setup and teardown
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* - Relies on Threaded.sleep to ensure acquire has blocked
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* - Does not ensure that exceptions are definitely caused by interrupt
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* - More verbose
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* - Requires a join at the end
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* - In MTC version, get reference to a thread using getThread(1)
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*/
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volatile boolean threadFailed;
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public void threadShouldThrow()
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{
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threadFailed = true;
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fail("should throw exception");
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}
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@Before
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public void setUp() throws Exception
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{
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threadFailed = false;
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}
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@Test
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public void testInterruptedAcquire()
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{
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final Semaphore s = new Semaphore(0);
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Thread t = new Thread(new Runnable()
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{
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public void run()
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{
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try
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{
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s.acquire();
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threadShouldThrow();
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} catch (InterruptedException success)
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{
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}
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}
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});
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t.start();
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try
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{
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Thread.sleep(50);
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t.interrupt();
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t.join();
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} catch (InterruptedException e)
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{
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fail("Unexpected exception");
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}
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}
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@After
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public void tearDown() throws Exception
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{
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assertFalse(threadFailed);
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}
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}

‎examples/plain_vs_mtc/ThreadControlTestsMTC.java

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package plain_vs_mtc;
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import edu.umd.cs.mtc.MultithreadedTestCase;
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import edu.umd.cs.mtc.Threaded;
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import static junit.framework.Assert.assertEquals;
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import static junit.framework.Assert.assertTrue;
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import org.junit.Before;
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import org.junit.Test;
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import java.util.concurrent.atomic.AtomicInteger;
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/**
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* @author <a href="mailto:[email protected]">Jan Van Besien</a>
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*/
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public class ThreadControlTestsMTC extends MultithreadedTestCase
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{
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AtomicInteger ai;
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@Before
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public void initialize()
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{
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ai = new AtomicInteger(0);
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}
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@Threaded
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public void thread1()
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{
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assertTrue(ai.compareAndSet(0, 1)); // S1
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waitForTick(3);
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assertEquals(ai.get(), 3); // S4
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}
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@Threaded
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public void thread2()
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{
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waitForTick(1);
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assertTrue(ai.compareAndSet(1, 2)); // S2
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waitForTick(3);
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assertEquals(ai.get(), 3); // S4
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}
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@Threaded
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public void thread3()
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{
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waitForTick(2);
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assertTrue(ai.compareAndSet(2, 3)); // S3
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}
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@Test
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public void test()
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{
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}
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}

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