| /* |
| * 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.*; |
| |
| public class ThreadTest extends JSR166TestCase { |
| |
| 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(); |
| assertEquals(tg, current.getUncaughtExceptionHandler()); |
| current.setUncaughtExceptionHandler(eh); |
| assertEquals(eh, current.getUncaughtExceptionHandler()); |
| current.setUncaughtExceptionHandler(null); |
| assertEquals(tg, current.getUncaughtExceptionHandler()); |
| } |
| |
| /** |
| * getDefaultUncaughtExceptionHandler returns value of last |
| * setDefaultUncaughtExceptionHandler. |
| */ |
| public void testGetAndSetDefaultUncaughtExceptionHandler() { |
| // BEGIN android-remove (when running as cts the RuntimeInit will |
| // set a default handler) |
| // assertEquals(null, Thread.getDefaultUncaughtExceptionHandler()); |
| // END android-remove |
| |
| // failure due to securityException is OK. |
| // Would be nice to explicitly test both ways, but cannot yet. |
| try { |
| Thread current = Thread.currentThread(); |
| ThreadGroup tg = current.getThreadGroup(); |
| MyHandler eh = new MyHandler(); |
| Thread.setDefaultUncaughtExceptionHandler(eh); |
| assertEquals(eh, Thread.getDefaultUncaughtExceptionHandler()); |
| Thread.setDefaultUncaughtExceptionHandler(null); |
| } |
| catch (SecurityException ok) { |
| } |
| assertEquals(null, Thread.getDefaultUncaughtExceptionHandler()); |
| } |
| |
| // How to test actually using UEH within junit? |
| |
| } |