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package com.vaadin.tests.tb3;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import org.junit.runners.model.RunnerScheduler;
/**
* JUnit scheduler capable of running multiple tets in parallel. Each test is
* run in its own thread. Uses an {@link ExecutorService} to manage the threads.
*
* @author Vaadin Ltd
*/
public class ParallelScheduler implements RunnerScheduler {
private final List<Future<Object>> fResults = new ArrayList<>();
private ExecutorService fService;
/**
* Creates a parallel scheduler which will use the given executor service
* when submitting test jobs.
*
* @param service
* The service to use for tests
*/
public ParallelScheduler(ExecutorService service) {
fService = service;
}
@Override
public void schedule(final Runnable childStatement) {
fResults.add(fService.submit(() -> {
childStatement.run();
return null;
}));
}
@Override
public void finished() {
for (Future<Object> each : fResults) {
try {
each.get();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
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