package org.junit.tests.manipulation;
import static org.junit.Assert.assertEquals;
import java.util.Comparator;
import junit.framework.JUnit4TestAdapter;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.runners.Enclosed;
import org.junit.runner.Description;
import org.junit.runner.JUnitCore;
import org.junit.runner.Request;
import org.junit.runner.RunWith;
import org.junit.runner.Runner;
import org.junit.runner.notification.RunNotifier;
@RunWith(Enclosed.class)
public class SortableTest {
private static Comparator<Description> forward() {
return new Comparator<Description>() {
public int compare(Description o1, Description o2) {
return o1.getDisplayName().compareTo(o2.getDisplayName());
}
};
}
private static Comparator<Description> backward() {
return new Comparator<Description>() {
public int compare(Description o1, Description o2) {
return o2.getDisplayName().compareTo(o1.getDisplayName());
}
};
}
public static class TestClassRunnerIsSortable {
private static String log = "";
public static class SortMe {
@Test
public void a() {
log += "a";
}
@Test
public void b() {
log += "b";
}
@Test
public void c() {
log += "c";
}
}
@Before
public void resetLog() {
log = "";
}
@Test
public void sortingForwardWorksOnTestClassRunner() {
Request forward = Request.aClass(SortMe.class).sortWith(forward());
new JUnitCore().run(forward);
assertEquals("abc", log);
}
@Test
public void sortingBackwardWorksOnTestClassRunner() {
Request backward = Request.aClass(SortMe.class).sortWith(backward());
new JUnitCore().run(backward);
assertEquals("cba", log);
}
@RunWith(Enclosed.class)
public static class Enclosing {
public static class A {
@Test
public void a() {
log += "Aa";
}
@Test
public void b() {
log += "Ab";
}
@Test
public void c() {
log += "Ac";
}
}
public static class B {
@Test
public void a() {
log += "Ba";
}
@Test
public void b() {
log += "Bb";
}
@Test
public void c() {
log += "Bc";
}
}
}
@Test
public void sortingForwardWorksOnSuite() {
Request forward = Request.aClass(Enclosing.class).sortWith(forward());
new JUnitCore().run(forward);
assertEquals("AaAbAcBaBbBc", log);
}
@Test
public void sortingBackwardWorksOnSuite() {
Request backward = Request.aClass(Enclosing.class).sortWith(backward());
new JUnitCore().run(backward);
assertEquals("BcBbBaAcAbAa", log);
}
}
public static class TestClassRunnerIsSortableWithSuiteMethod {
private static String log = "";
public static class SortMe {
@Test
public void a() {
log += "a";
}
@Test
public void b() {
log += "b";
}
@Test
public void c() {
log += "c";
}
public static junit.framework.Test suite() {
return new JUnit4TestAdapter(SortMe.class);
}
}
@Before
public void resetLog() {
log = "";
}
@Test
public void sortingForwardWorksOnTestClassRunner() {
Request forward = Request.aClass(SortMe.class).sortWith(forward());
new JUnitCore().run(forward);
assertEquals("abc", log);
}
@Test
public void sortingBackwardWorksOnTestClassRunner() {
Request backward = Request.aClass(SortMe.class).sortWith(backward());
new JUnitCore().run(backward);
assertEquals("cba", log);
}
}
public static class UnsortableRunnersAreHandledWithoutCrashing {
public static class UnsortableRunner extends Runner {
public UnsortableRunner(Class<?> klass) {
}
@Override
public Description getDescription() {
return Description.EMPTY;
}
@Override
public void run(RunNotifier notifier) {
}
}
@RunWith(UnsortableRunner.class)
public static class Unsortable {
@Test
public void a() {
}
}
@Test
public void unsortablesAreHandledWithoutCrashing() {
Request unsorted = Request.aClass(Unsortable.class).sortWith(forward());
new JUnitCore().run(unsorted);
}
}
}