ClonesArguments.java

/*
 * Galaxy
 * Copyright (C) 2012 Parallel Universe Software Co.
 * 
 * This file is part of Galaxy.
 *
 * Galaxy is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as 
 * published by the Free Software Foundation, either version 3 of 
 * the License, or (at your option) any later version.
 *
 * Galaxy is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public 
 * License along with Galaxy. If not, see <http://www.gnu.org/licenses/>.
 */
package co.paralleluniverse.galaxy.test;

import java.lang.reflect.Method;
import org.mockito.internal.stubbing.defaultanswers.ReturnsEmptyValues;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;

/**
 *
 * @author pron
 */
public class ClonesArguments implements Answer<Object> {
    @Override
    public Object answer(InvocationOnMock invocation) throws Throwable {
        Object[] arguments = invocation.getArguments();
        for (int i = 0; i < arguments.length; i++) {
            Object from = arguments[i];
            if (from instanceof Cloneable) {
                try {
                    Method cloneMethod = from.getClass().getMethod("clone");
                    Object newInstance = cloneMethod.invoke(from);
                    arguments[i] = newInstance;
                } catch (Exception e) {
                    // ignore
                }
            }
        }
        return new ReturnsEmptyValues().answer(invocation);
    }
}