VersionSettingTestSuite.java

/*******************************************************************************
 * This file is part of OpenNMS(R).
 *
 * Copyright (C) 2007-2011 The OpenNMS Group, Inc.
 * OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * OpenNMS(R) 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenNMS(R).  If not, see:
 *      http://www.gnu.org/licenses/
 *
 * For more information contact:
 *     OpenNMS(R) Licensing <license@opennms.org>
 *     http://www.opennms.org/
 *     http://www.opennms.com/
 *******************************************************************************/

package org.opennms.test;

import java.lang.reflect.Method;

import junit.framework.AssertionFailedError;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestResult;
import junit.framework.TestSuite;

/**
 * <p>VersionSettingTestSuite class.</p>
 *
 * @author ranger
 * @version $Id: $
 */
public class VersionSettingTestSuite extends TestSuite {
    
    int m_version;

    /**
     * <p>Constructor for VersionSettingTestSuite.</p>
     *
     * @param version a int.
     */
    public VersionSettingTestSuite(int version) {
        super();
        m_version = version;
    }
    
    /**
     * <p>Constructor for VersionSettingTestSuite.</p>
     *
     * @param theClass a {@link java.lang.Class} object.
     * @param name a {@link java.lang.String} object.
     * @param version a int.
     */
    public VersionSettingTestSuite(Class<? extends TestCase> theClass, String name, int version) {
        super(theClass, name);
        m_version = version;
        checkForVersionMethod(theClass);
    }

    /**
     * <p>Constructor for VersionSettingTestSuite.</p>
     *
     * @param theClass a {@link java.lang.Class} object.
     * @param version a int.
     */
    public VersionSettingTestSuite(Class<? extends TestCase> theClass, int version) {
        super(theClass);
        m_version = version;
        checkForVersionMethod(theClass);
    }

    /**
     * <p>Constructor for VersionSettingTestSuite.</p>
     *
     * @param name a {@link java.lang.String} object.
     * @param version a int.
     */
    public VersionSettingTestSuite(String name, int version) {
        super(name);
        m_version = version;
    }
    
    private void checkForVersionMethod(final Class<?> theClass) {
        try {
            getSetVersionMethod(theClass);
        } catch (final NoSuchMethodException e) {
            addTest(new TestCase("warning") {
                protected void runTest() {
                    fail("Unable to locate setVersion method in class "+theClass.getName() + ": " + e);
                }
            });
        }
            
    }

    private Method getSetVersionMethod(final Class<?> theClass) throws NoSuchMethodException {
        return theClass.getMethod("setVersion", new Class[] { Integer.TYPE });
    }

    /** {@inheritDoc} */
    public void runTest(Test test, TestResult result) {
        setVersion(test);
        super.runTest(test, result);
    }

    private void setVersion(Test test) {
        try {
            Method m = getSetVersionMethod(test.getClass());
            m.invoke(test, new Object[] { new Integer(m_version) });
        } catch (Throwable e) {
            AssertionFailedError newE = new AssertionFailedError("Could not call setVersion on " + test.getClass().getName() + ": " + e);
            newE.initCause(e);
            throw newE;
        }
    }
}