001/**
002 * Copyright (c) 2021 QOS.ch
003 * All rights reserved.
004 *
005 * Permission is hereby granted, free  of charge, to any person obtaining
006 * a  copy  of this  software  and  associated  documentation files  (the
007 * "Software"), to  deal in  the Software without  restriction, including
008 * without limitation  the rights to  use, copy, modify,  merge, publish,
009 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
010 * permit persons to whom the Software  is furnished to do so, subject to
011 * the following conditions:
012 *
013 * The  above  copyright  notice  and  this permission  notice  shall  be
014 * included in all copies or substantial portions of the Software.
015 *
016 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
017 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
018 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
019 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
020 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
021 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
022 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
023 *
024 */
025package org.slf4j.rule;
026
027import org.junit.runners.model.Statement;
028
029//This class has been inspired by the article "A JUnit Rule to Run a Test in Its Own Thread"
030//published by Frank Appel, author of the book "Testing with JUnit" published by Packt publishing. 
031//
032//See also
033//https://www.codeaffine.com/2014/07/21/a-junit-rule-to-run-a-test-in-its-own-thread/
034
035public class RunInNewThreadStatement extends Statement implements Runnable {
036
037    final Statement base;
038    final long timeout;
039    Throwable throwable;
040    
041    RunInNewThreadStatement(Statement base, long timeout) {
042        this.base = base;
043        this.timeout = timeout;
044    }
045    
046    @Override
047    public void evaluate() throws Throwable {
048       Thread thread = new Thread(this);
049       thread.start();
050       System.out.println("Timeout is "+timeout);
051       thread.join(timeout);
052       
053       if (throwable != null) {
054           throw throwable;
055       }
056    }
057
058    @Override
059    public void run() {
060        try {
061            base.evaluate();
062        } catch (Throwable e) {
063            this.throwable = e;
064        }
065    }
066
067    
068}