SE450: Patterns: Composite Example [9/22]

Participants and Collaborators

• Component - (Test)
• Leaf - (TestCase)
• Composite - (TestSuite)
• Client - (TestRunner)

public interface Test {
	/**
	 * Runs a test and collects its result in a TestResult instance.
	 */
	public abstract void run(TestResult result);
}

public abstract class TestCase extends Assert implements Test {
	/**
	 * Runs the test case and collects the results in TestResult.
	 */
	public void run(TestResult result) {
		result.run(this);
	}
}

public class TestSuite implements Test {
	/**
	 * Adds a test to the suite.
	 */
	public void addTest(Test test) {
		fTests.addElement(test);
	}
	/**
	 * Runs the tests and collects their result in a TestResult.
	 */
	public void run(TestResult result) {
		for (Enumeration e= tests(); e.hasMoreElements(); ) {
	  		if (result.shouldStop() )
	  			break;
			Test test= (Test)e.nextElement();
			runTest(test, result);
		}
	}
}