* The basics are taken from an article by Andy Schneider
* The article is "JUnit Best Practices"
* Part of the GroboUtils package at:
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* A helper class to more easily create monitors. TestRunnable monitors
* do not have to extend this class, but it helps in becoming more
* conformant to the requirements of the superclass.
* @author Matt Albrecht <a href="mailto:email@example.com">firstname.lastname@example.org</a>
* @version $Date: 2003/09/29 21:09:40 $
* @since July 12, 2003
public abstract class TestMonitorRunnable extends TestRunnable
super( true );
* Performs checks on the monitored object which is being subjected
* to parallel processing. This method should not perform looping
* over the check(s), since the <tt>runTest()</tt> method will
* perform these.
* @exception Throwable any exception may be thrown and will be
* reported as a test failure, except for
* <tt>InterruptedException</tt>s, which will be ignored.
public abstract void runMonitor() throws Throwable;
* Performs all the necessary looping, end-of-threads, and interrupt
* checking. The inner loop calls the <tt>runMonitor()</tt>
public void runTest() throws Throwable
while (!isDone() && !Thread.interrupted())
// perform one last pass, to ensure it's still valid
* Instructs the thread to pause for a while. This method is called
* by the <tt>runTest()</tt> method's loop, immediately after
* each <tt>runMonitor()</tt> invocation. The default implementation
* performs a <tt>Thread.yield()</tt> call, but by putting it into
* this method, that behavior can be modified.
* @exception InterruptedException allows for overloading methods to
* perform a <tt>delay( long )</tt> call within their
protected void yieldProcessing() throws InterruptedException