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/*
* Written by Doug Lea with assistance from members of JCP JSR-166
* Expert Group and released to the public domain, as explained at
* http://creativecommons.org/publicdomain/zero/1.0/
* Other contributors include Andrew Wright, Jeffrey Hayes,
* Pat Fisher, Mike Judd.
*/
package jsr166;
import junit.framework.Test;
import junit.framework.TestSuite;
public class ThreadTest extends JSR166TestCase {
// android-note: Removed because the CTS runner does a bad job of
// retrying tests that have suite() declarations.
//
// public static void main(String[] args) {
// main(suite(), args);
// }
// public static Test suite() {
// return new TestSuite(...);
// }
static class MyHandler implements Thread.UncaughtExceptionHandler {
public void uncaughtException(Thread t, Throwable e) {
e.printStackTrace();
}
}
/**
* getUncaughtExceptionHandler returns ThreadGroup unless set,
* otherwise returning value of last setUncaughtExceptionHandler.
*/
public void testGetAndSetUncaughtExceptionHandler() {
// these must be done all at once to avoid state
// dependencies across tests
Thread current = Thread.currentThread();
ThreadGroup tg = current.getThreadGroup();
MyHandler eh = new MyHandler();
assertSame(tg, current.getUncaughtExceptionHandler());
current.setUncaughtExceptionHandler(eh);
try {
assertSame(eh, current.getUncaughtExceptionHandler());
} finally {
current.setUncaughtExceptionHandler(null);
}
assertSame(tg, current.getUncaughtExceptionHandler());
}
/**
* getDefaultUncaughtExceptionHandler returns value of last
* setDefaultUncaughtExceptionHandler.
*/
public void testGetAndSetDefaultUncaughtExceptionHandler() {
// android-note: Removed assertion; all "normal" android apps (including CTS tests) have a
// default uncaught exception handler installed by the framework.
//
// assertEquals(null, Thread.getDefaultUncaughtExceptionHandler());
// failure due to securityException is OK.
// Would be nice to explicitly test both ways, but cannot yet.
Thread.UncaughtExceptionHandler defaultHandler
= Thread.getDefaultUncaughtExceptionHandler();
MyHandler eh = new MyHandler();
try {
Thread.setDefaultUncaughtExceptionHandler(eh);
try {
assertSame(eh, Thread.getDefaultUncaughtExceptionHandler());
} finally {
Thread.setDefaultUncaughtExceptionHandler(defaultHandler);
}
} catch (SecurityException ok) {
assertNotNull(System.getSecurityManager());
}
assertSame(defaultHandler, Thread.getDefaultUncaughtExceptionHandler());
}
// How to test actually using UEH within junit?
}
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