RunInNewThreadRule.java

/**
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package org.slf4j.rule;

import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;

// This class has been inspired by the article "A JUnit Rule to Run a Test in Its Own Thread"
// published by Frank Appel, author of the book "Testing with JUnit" published by Packt publishing. 
// 
// See also
// https://www.codeaffine.com/2014/07/21/a-junit-rule-to-run-a-test-in-its-own-thread/
    
public class RunInNewThreadRule implements TestRule {

    @Override
    public Statement apply(Statement base, Description description) {
        RunInNewThread desiredAnnotaton = description.getAnnotation(RunInNewThread.class);
        
        if (desiredAnnotaton ==  null) {
            System.out.println("test "+ description.getMethodName() +" not annotated");
            return base;
        } else {
            long timeout = desiredAnnotaton.timeout();
            System.out.println("running "+ description.getMethodName() +" in separate tjread");
            return new RunInNewThreadStatement(base, timeout);
        }
    }

}