Calin Juravle | 8f0d92b | 2013-08-01 17:26:00 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Written by Doug Lea with assistance from members of JCP JSR-166 |
| 3 | * Expert Group and released to the public domain, as explained at |
| 4 | * http://creativecommons.org/publicdomain/zero/1.0/ |
| 5 | * Other contributors include Andrew Wright, Jeffrey Hayes, |
| 6 | * Pat Fisher, Mike Judd. |
| 7 | */ |
| 8 | |
| 9 | package jsr166; |
| 10 | |
| 11 | import junit.framework.*; |
| 12 | |
| 13 | public class ThreadTest extends JSR166TestCase { |
| 14 | |
| 15 | static class MyHandler implements Thread.UncaughtExceptionHandler { |
| 16 | public void uncaughtException(Thread t, Throwable e) { |
| 17 | e.printStackTrace(); |
| 18 | } |
| 19 | } |
| 20 | |
| 21 | /** |
| 22 | * getUncaughtExceptionHandler returns ThreadGroup unless set, |
| 23 | * otherwise returning value of last setUncaughtExceptionHandler. |
| 24 | */ |
| 25 | public void testGetAndSetUncaughtExceptionHandler() { |
| 26 | // these must be done all at once to avoid state |
| 27 | // dependencies across tests |
| 28 | Thread current = Thread.currentThread(); |
| 29 | ThreadGroup tg = current.getThreadGroup(); |
| 30 | MyHandler eh = new MyHandler(); |
| 31 | assertEquals(tg, current.getUncaughtExceptionHandler()); |
| 32 | current.setUncaughtExceptionHandler(eh); |
| 33 | assertEquals(eh, current.getUncaughtExceptionHandler()); |
| 34 | current.setUncaughtExceptionHandler(null); |
| 35 | assertEquals(tg, current.getUncaughtExceptionHandler()); |
| 36 | } |
| 37 | |
| 38 | /** |
| 39 | * getDefaultUncaughtExceptionHandler returns value of last |
| 40 | * setDefaultUncaughtExceptionHandler. |
| 41 | */ |
| 42 | public void testGetAndSetDefaultUncaughtExceptionHandler() { |
| 43 | // BEGIN android-remove (when running as cts the RuntimeInit will |
| 44 | // set a default handler) |
| 45 | // assertEquals(null, Thread.getDefaultUncaughtExceptionHandler()); |
| 46 | // END android-remove |
| 47 | |
| 48 | // failure due to securityException is OK. |
| 49 | // Would be nice to explicitly test both ways, but cannot yet. |
| 50 | try { |
| 51 | Thread current = Thread.currentThread(); |
| 52 | ThreadGroup tg = current.getThreadGroup(); |
| 53 | MyHandler eh = new MyHandler(); |
| 54 | Thread.setDefaultUncaughtExceptionHandler(eh); |
| 55 | assertEquals(eh, Thread.getDefaultUncaughtExceptionHandler()); |
| 56 | Thread.setDefaultUncaughtExceptionHandler(null); |
| 57 | } |
| 58 | catch (SecurityException ok) { |
| 59 | } |
| 60 | assertEquals(null, Thread.getDefaultUncaughtExceptionHandler()); |
| 61 | } |
| 62 | |
| 63 | // How to test actually using UEH within junit? |
| 64 | |
| 65 | } |