package org.junit.tests.running.methods;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import org.junit.runner.JUnitCore;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;
public class ExpectedTest {
public static class Expected {
@Test(expected = Exception.class)
public void expected() throws Exception {
throw new Exception();
}
}
@Test
public void expected() {
JUnitCore core = new JUnitCore();
Result result = core.run(Expected.class);
assertTrue(result.wasSuccessful());
}
public static class Unexpected {
@Test(expected = Exception.class)
public void expected() throws Exception {
throw new Error();
}
}
@Test
public void unexpected() {
Result result = JUnitCore.runClasses(Unexpected.class);
Failure failure = result.getFailures().get(0);
String message = failure.getMessage();
assertTrue(message.contains("expected<java.lang.Exception> but was<java.lang.Error>"));
assertEquals(Error.class, failure.getException().getCause().getClass());
}
public static class NoneThrown {
@Test(expected = Exception.class)
public void nothing() {
}
}
@Test
public void noneThrown() {
JUnitCore core = new JUnitCore();
Result result = core.run(NoneThrown.class);
assertFalse(result.wasSuccessful());
String message = result.getFailures().get(0).getMessage();
assertTrue(message.contains("Expected exception: java.lang.Exception"));
}
public static class ExpectSuperclass {
@Test(expected = RuntimeException.class)
public void throwsSubclass() {
throw new ClassCastException();
}
}
@Test
public void expectsSuperclass() {
assertTrue(new JUnitCore().run(ExpectSuperclass.class).wasSuccessful());
}
}