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/*****************************************************************************
* Copyright (c) 2015 Christian W. Damus and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Christian W. Damus - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.junit.utils.rules;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.Executor;
import org.eclipse.papyrus.junit.utils.Activator;
import org.junit.rules.TestRule;
import org.junit.rules.TestWatcher;
import org.junit.runner.Description;
import com.google.common.collect.Queues;
/**
* A JUnit {@linkplain TestRule rule} that is an {@link Executor} running tasks at clean-up of the
* test execution.
*/
public class ExecutorRule extends TestWatcher implements Executor {
private final BlockingQueue<Runnable> queue = Queues.newLinkedBlockingQueue();
public ExecutorRule() {
super();
}
@Override
public void execute(Runnable command) {
queue.add(command);
}
protected void runPending() {
for (Runnable next = queue.poll(); next != null; next = queue.poll()) {
try {
next.run();
} catch (Exception e) {
Activator.log.error("Uncaught exception in test shutdown runnable.", e); //$NON-NLS-1$
}
}
}
@Override
protected void finished(Description description) {
runPending();
}
}
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