Source code
package org.junit.internal.runners;
import junit.extensions.TestDecorator;
import junit.framework.AssertionFailedError;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestListener;
import junit.framework.TestResult;
import junit.framework.TestSuite;
import org.junit.runner.Describable;
import org.junit.runner.Description;
import org.junit.runner.Runner;
import org.junit.runner.manipulation.Filter;
import org.junit.runner.manipulation.Filterable;
import org.junit.runner.manipulation.NoTestsRemainException;
import org.junit.runner.manipulation.Sortable;
import org.junit.runner.manipulation.Sorter;
import org.junit.runner.notification.Failure;
import org.junit.runner.notification.RunNotifier;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
public class JUnit38ClassRunner extends Runner implements Filterable, Sortable {
private static final class OldTestClassAdaptingListener implements
TestListener {
private final RunNotifier fNotifier;
private OldTestClassAdaptingListener(RunNotifier notifier) {
fNotifier = notifier;
}
public void endTest(Test test) {
fNotifier.fireTestFinished(asDescription(test));
}
public void startTest(Test test) {
fNotifier.fireTestStarted(asDescription(test));
}
// Implement junit.framework.TestListener
public void addError(Test test, Throwable e) {
Failure failure = new Failure(asDescription(test), e);
fNotifier.fireTestFailure(failure);
}
private Description asDescription(Test test) {
if (test instanceof Describable) {
Describable facade = (Describable) test;
return facade.getDescription();
}
return Description.createTestDescription(getEffectiveClass(test), getName(test));
}
private Class<? extends Test> getEffectiveClass(Test test) {
return test.getClass();
}
private String getName(Test test) {
if (test instanceof TestCase) {
return ((TestCase) test).getName();
} else {
return test.toString();
}
}
public void addFailure(Test test, AssertionFailedError t) {
addError(test, t);
}
}
private volatile Test fTest;
public JUnit38ClassRunner(Class<?> klass) {
this(new TestSuite(klass.asSubclass(TestCase.class)));
}
public JUnit38ClassRunner(Test test) {
super();
setTest(test);
}
@Override
public void run(RunNotifier notifier) {
TestResult result = new TestResult();
result.addListener(createAdaptingListener(notifier));
getTest().run(result);
}
public TestListener createAdaptingListener(final RunNotifier notifier) {
return new OldTestClassAdaptingListener(notifier);
}
@Override
public Description getDescription() {
return makeDescription(getTest());
}
private static Description makeDescription(Test test) {
if (test instanceof TestCase) {
TestCase tc = (TestCase) test;
return Description.createTestDescription(tc.getClass(), tc.getName(),
getAnnotations(tc));
} else if (test instanceof TestSuite) {
TestSuite ts = (TestSuite) test;
String name = ts.getName() == null ? createSuiteDescription(ts) : ts.getName();
Description description = Description.createSuiteDescription(name);
int n = ts.testCount();
for (int i = 0; i < n; i++) {
Description made = makeDescription(ts.testAt(i));
description.addChild(made);
}
return description;
} else if (test instanceof Describable) {
Describable adapter = (Describable) test;
return adapter.getDescription();
} else if (test instanceof TestDecorator) {
TestDecorator decorator = (TestDecorator) test;
return makeDescription(decorator.getTest());
} else {
// This is the best we can do in this case
return Description.createSuiteDescription(test.getClass());
}
}
/**
* Get the annotations associated with given TestCase.
* @param test the TestCase.
*/
private static Annotation[] getAnnotations(TestCase test) {
try {
Method m = test.getClass().getMethod(test.getName());
return m.getDeclaredAnnotations();
} catch (SecurityException e) {
} catch (NoSuchMethodException e) {
}
return new Annotation[0];
}
private static String createSuiteDescription(TestSuite ts) {
int count = ts.countTestCases();
String example = count == 0 ? "" : String.format(" [example: %s]", ts.testAt(0));
return String.format("TestSuite with %s tests%s", count, example);
}
public void filter(Filter filter) throws NoTestsRemainException {
if (getTest() instanceof Filterable) {
Filterable adapter = (Filterable) getTest();
adapter.filter(filter);
} else if (getTest() instanceof TestSuite) {
TestSuite suite = (TestSuite) getTest();
TestSuite filtered = new TestSuite(suite.getName());
int n = suite.testCount();
for (int i = 0; i < n; i++) {
Test test = suite.testAt(i);
if (filter.shouldRun(makeDescription(test))) {
filtered.addTest(test);
}
}
setTest(filtered);
if (filtered.testCount() == 0) {
throw new NoTestsRemainException();
}
}
}
public void sort(Sorter sorter) {
if (getTest() instanceof Sortable) {
Sortable adapter = (Sortable) getTest();
adapter.sort(sorter);
}
}
private void setTest(Test test) {
fTest = test;
}
private Test getTest() {
return fTest;
}
}