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package org.junit.tests.running.classes;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import org.junit.runner.Description;
import org.junit.runner.JUnitCore;
import org.junit.runner.RunWith;
import org.junit.runner.Runner;
import org.junit.runner.notification.RunNotifier;
public class RunWithTest {
private static String log;
public static class ExampleRunner extends Runner {
public ExampleRunner(Class<?> klass) {
log+= "initialize";
}
@Override
public void run(RunNotifier notifier) {
log+= "run";
}
@Override
public int testCount() {
log+= "count";
return 0;
}
@Override
public Description getDescription() {
log+= "plan";
return Description.createSuiteDescription("example");
}
}
@RunWith(ExampleRunner.class)
public static class ExampleTest {
}
@Test public void run() {
log= "";
JUnitCore.runClasses(ExampleTest.class);
assertTrue(log.contains("plan"));
assertTrue(log.contains("initialize"));
assertTrue(log.contains("run"));
}
public static class SubExampleTest extends ExampleTest {
}
@Test public void runWithExtendsToSubclasses() {
log= "";
JUnitCore.runClasses(SubExampleTest.class);
assertTrue(log.contains("run"));
}
public static class BadRunner extends Runner {
@Override
public Description getDescription() {
return null;
}
@Override
public void run(RunNotifier notifier) {
// do nothing
}
}
@RunWith(BadRunner.class)
public static class Empty {
}
@Test
public void characterizeErrorMessageFromBadRunner() {
assertEquals(
"Custom runner class BadRunner should have a public constructor with signature BadRunner(Class testClass)",
JUnitCore.runClasses(Empty.class).getFailures().get(0)
.getMessage());
}
}
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