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/*
* @(#)TestMonitorRunnable.java
*
* The basics are taken from an article by Andy Schneider
* andrew.schneider@javaworld.com
* The article is "JUnit Best Practices"
* http://www.javaworld.com/javaworld/jw-12-2000/jw-1221-junit_p.html
*
* Part of the GroboUtils package at:
* http://groboutils.sourceforge.net
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package net.sourceforge.groboutils.junit.v1;
import org.apache.log4j.Logger;
import junit.framework.TestCase;
import junit.framework.TestResult;
import junit.framework.AssertionFailedError;
import junit.framework.Assert;
/**
* 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:groboclown@users.sourceforge.net">groboclown@users.sourceforge.net</a>
* @version $Date: 2003/09/29 21:09:40 $
* @since July 12, 2003
*/
public abstract class TestMonitorRunnable extends TestRunnable
{
public TestMonitorRunnable()
{
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>
* method.
*/
public void runTest() throws Throwable
{
while (!isDone() && !Thread.interrupted())
{
runMonitor();
yieldProcessing();
}
// perform one last pass, to ensure it's still valid
runMonitor();
}
/**
* 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
* implementation.
*/
protected void yieldProcessing() throws InterruptedException
{
Thread.yield();
}
}
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