package junit.framework;
import java.util.List;
import org.junit.Ignore;
import org.junit.runner.Describable;
import org.junit.runner.Description;
import org.junit.runner.Request;
import org.junit.runner.Runner;
import org.junit.runner.manipulation.Filter;
import org.junit.runner.manipulation.Filterable;
import org.junit.runner.manipulation.Orderer;
import org.junit.runner.manipulation.InvalidOrderingException;
import org.junit.runner.manipulation.NoTestsRemainException;
import org.junit.runner.manipulation.Orderable;
import org.junit.runner.manipulation.Sorter;
/**
* The JUnit4TestAdapter enables running JUnit-4-style tests using a JUnit-3-style test runner.
*
* <p> To use it, add the following to a test class:
* <pre>
public static Test suite() {
return new JUnit4TestAdapter(<em>YourJUnit4TestClass</em>.class);
}
</pre>
*/
public class JUnit4TestAdapter implements Test, Filterable, Orderable, Describable {
private final Class<?> fNewTestClass;
private final Runner fRunner;
private final JUnit4TestAdapterCache fCache;
public JUnit4TestAdapter(Class<?> newTestClass) {
this(newTestClass, JUnit4TestAdapterCache.getDefault());
}
public JUnit4TestAdapter(final Class<?> newTestClass, JUnit4TestAdapterCache cache) {
fCache = cache;
fNewTestClass = newTestClass;
fRunner = Request.classWithoutSuiteMethod(newTestClass).getRunner();
}
public int countTestCases() {
return fRunner.testCount();
}
public void run(TestResult result) {
fRunner.run(fCache.getNotifier(result, this));
}
// reflective interface for Eclipse
public List<Test> getTests() {
return fCache.asTestList(getDescription());
}
// reflective interface for Eclipse
public Class<?> getTestClass() {
return fNewTestClass;
}
public Description getDescription() {
Description description = fRunner.getDescription();
return removeIgnored(description);
}
private Description removeIgnored(Description description) {
if (isIgnored(description)) {
return Description.EMPTY;
}
Description result = description.childlessCopy();
for (Description each : description.getChildren()) {
Description child = removeIgnored(each);
if (!child.isEmpty()) {
result.addChild(child);
}
}
return result;
}
private boolean isIgnored(Description description) {
return description.getAnnotation(Ignore.class) != null;
}
@Override
public String toString() {
return fNewTestClass.getName();
}
public void filter(Filter filter) throws NoTestsRemainException {
filter.apply(fRunner);
}
public void sort(Sorter sorter) {
sorter.apply(fRunner);
}
/**
* {@inheritDoc}
*
* @since 4.13
*/
public void order(Orderer orderer) throws InvalidOrderingException {
orderer.apply(fRunner);
}
}