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PatternTesting Check.RT (patterntesting-check-rt) provides different runtime checks of known anti patterns (like using null values as arguments or return values) but provides also a test framework for better testing.

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/*
 * $Id: JUnit4Runner.java,v 1.3 2010/06/08 21:10:12 oboehm Exp $
 *
 * Copyright (c) 2010 by Oliver Boehm
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express orimplied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * (c)reated 12.03.2010 by oliver ([email protected])
 */

package patterntesting.check.runtime.junit;

import java.lang.annotation.Annotation;
import java.lang.reflect.*;

import org.apache.commons.logging.*;
import org.junit.*;


/**
 * This is a helper class to be able to start setUp and tearDown methods
 * (or maybe later other methods) separately. It is e.g. used by the
 * SmokeTestAspect.
 *
 * @author oliver
 * @since 1.0 (12.03.2010)
 */
public final class JUnit4Runner {

    private static final Log log = LogFactory.getLog(JUnit4Runner.class);

    /** This is a static utility class (no need to instantiate it). */
    private JUnit4Runner() {}

    /**
     * The setUp method of the give JUnit test case is called here.
     *
     * @since 1.0
     * @param tc the JUnit test case
     */
    public static void setUp(final Object tc) {
        invoke(tc, Before.class);
    }

    /**
     * The tearDown method of the give JUnit test case is called here.
     *
     * @since 1.0
     * @param tc the JUnit test case
     */
    public static void tearDown(final Object tc) {
        invoke(tc, After.class);
    }

    private static void invoke(final Object tc,
            final Class annotationClass) {
        Method[] methods = tc.getClass().getMethods();
        for (int i = 0; i < methods.length; i++) {
            Method method = methods[i];
            if (method.getAnnotation(annotationClass) != null) {
                try {
                    method.invoke(tc);
                } catch (IllegalAccessException e) {
                    throw new RuntimeException("can't access " + method, e);
                } catch (InvocationTargetException e) {
                    throw new RuntimeException(method + " failed", e);
                }
                return;
            }
        }
        if (log.isDebugEnabled()) {
            log.debug("no @" + annotationClass.getSimpleName()
                    + " method inside " + tc);
        }
    }

}