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JUnit is a unit testing framework for Java, created by Erich Gamma and Kent Beck.

There is a newer version: 4.13.2

package junit.extensions;

import junit.framework.Assert;
import junit.framework.Test;
import junit.framework.TestResult;

/**
 * A Decorator for Tests. Use TestDecorator as the base class for defining new
 * test decorators. Test decorator subclasses can be introduced to add behaviour
 * before or after a test is run.
 */
public class TestDecorator extends Assert implements Test {
    protected Test fTest;

    public TestDecorator(Test test) {
        fTest = test;
    }

    /**
     * The basic run behaviour.
     */
    public void basicRun(TestResult result) {
        fTest.run(result);
    }

    public int countTestCases() {
        return fTest.countTestCases();
    }

    public void run(TestResult result) {
        basicRun(result);
    }

    @Override
    public String toString() {
        return fTest.toString();
    }

    public Test getTest() {
        return fTest;
    }
}