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JUnit is a regression testing framework written by Erich Gamma and Kent Beck. It is used by the developer who implements unit tests in Java.

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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;
	}
}