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Essential libraries for testing Protelis programs and simulations

There is a newer version: 17.7.1

/*
 * Copyright (C) 2021, Danilo Pianini and contributors listed in the project's build.gradle.kts or pom.xml file.
 *
 * This file is part of Protelis, and is distributed under the terms of the GNU General Public License,
 * with a linking exception, as described in the file LICENSE.txt in this project's top directory.
 */

package org.protelis.test.observer;

import java.util.List;
import java.util.Optional;

/**
 * This observer intercepts exception thrown during the tests.
 */
public interface ExceptionObserver {
    /**
     * An exception has been thrown.
     * 
     * @param ex
     *            exception
     * @return the same exception
     */
    Exception exceptionThrown(Exception ex);

    /**
     * @return list of all the thrown exception
     */
    List getExceptionList();

    /**
     * @return last thrown exception
     */
    Optional getLastException();

    /**
     * @return first thrown exception
     */
    Optional getFirstException();
}