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/* |
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* Written by members of JCP JSR-166 Expert Group and released to the |
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* public domain. Use, modify, and redistribute this code in any way |
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* without acknowledgement. Other contributors include Andrew Wright, |
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* Jeffrey Hayes, Pat Fischer, Mike Judd. |
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*/ |
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import junit.framework.*; |
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import java.util.concurrent.Semaphore; |
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/** |
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* Test java.lang.Thread |
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* |
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*/ |
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public class ThreadTest extends TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(ThreadTest.class); |
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} |
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static class MyHandler implements Thread.UncaughtExceptionHandler { |
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public void uncaughtException(Thread t, Throwable e) { |
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e.printStackTrace(); |
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} |
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} |
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public void testGetAndSetUncaughtExceptionHandler() { |
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// these must be done all at once to avoid state |
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// dependencies across tests |
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Thread current = Thread.currentThread(); |
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ThreadGroup tg = current.getThreadGroup(); |
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assertNull(Thread.getDefaultUncaughtExceptionHandler()); |
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assertEquals(tg, current.getUncaughtExceptionHandler()); |
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MyHandler eh = new MyHandler(); |
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Thread.setDefaultUncaughtExceptionHandler(eh); |
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assertEquals(eh, current.getUncaughtExceptionHandler()); |
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assertEquals(eh, Thread.getDefaultUncaughtExceptionHandler()); |
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Thread.setDefaultUncaughtExceptionHandler(null); |
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assertNull(Thread.getDefaultUncaughtExceptionHandler()); |
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assertEquals(tg, current.getUncaughtExceptionHandler()); |
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current.setUncaughtExceptionHandler(eh); |
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assertEquals(eh, current.getUncaughtExceptionHandler()); |
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current.setUncaughtExceptionHandler(null); |
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assertEquals(tg, current.getUncaughtExceptionHandler()); |
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} |
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// How to test actually using UEH within junit? |
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} |
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