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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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|
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|
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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import java.math.BigInteger; |
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import java.security.*; |
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|
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public class AbstractExecutorServiceTest extends JSR166TestCase{ |
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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(ExecutorsTest.class); |
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} |
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|
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/** |
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* A no-frills implementation of AbstractExecutorService, designed |
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* to test the submit/invoke methods only. |
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*/ |
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static class DirectExecutorService extends AbstractExecutorService { |
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public void execute(Runnable r) { r.run(); } |
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public void shutdown() { shutdown = true; } |
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public List<Runnable> shutdownNow() { shutdown = true; return Collections.EMPTY_LIST; } |
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public boolean isShutdown() { return shutdown; } |
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public boolean isTerminated() { return isShutdown(); } |
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public boolean awaitTermination(long timeout, TimeUnit unit) { return isShutdown(); } |
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private volatile boolean shutdown = false; |
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} |
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|
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private static final String TEST_STRING = "a test string"; |
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|
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private static class StringTask implements Callable<String> { |
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public String call() { return TEST_STRING; } |
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} |
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|
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/** |
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* execute of runnable runs it to completion |
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*/ |
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public void testExecuteRunnable() { |
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try { |
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ExecutorService e = new DirectExecutorService(); |
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TrackedShortRunnable task = new TrackedShortRunnable(); |
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assertFalse(task.done); |
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Future<?> future = e.submit(task); |
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future.get(); |
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assertTrue(task.done); |
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} |
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catch (ExecutionException ex) { |
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unexpectedException(); |
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} |
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catch (InterruptedException ex) { |
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unexpectedException(); |
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} |
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} |
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|
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|
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/** |
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* execute of a callable runs it to completion |
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*/ |
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public void testExecuteCallable() { |
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try { |
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ExecutorService e = new DirectExecutorService(); |
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Future<String> future = e.submit(new StringTask()); |
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String result = future.get(); |
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assertSame(TEST_STRING, result); |
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} |
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catch (ExecutionException ex) { |
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unexpectedException(); |
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} |
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catch (InterruptedException ex) { |
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unexpectedException(); |
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} |
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} |
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|
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|
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/** |
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* execute of a privileged action runs it to completion |
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*/ |
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public void testExecutePrivilegedAction() { |
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Policy savedPolicy = Policy.getPolicy(); |
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AdjustablePolicy policy = new AdjustablePolicy(); |
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policy.addPermission(new RuntimePermission("getContextClassLoader")); |
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policy.addPermission(new RuntimePermission("setContextClassLoader")); |
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Policy.setPolicy(policy); |
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try { |
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ExecutorService e = new DirectExecutorService(); |
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Future future = e.submit(Executors.callable(new PrivilegedAction() { |
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public Object run() { |
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return TEST_STRING; |
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}})); |
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|
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Object result = future.get(); |
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assertSame(TEST_STRING, result); |
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} |
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catch (ExecutionException ex) { |
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unexpectedException(); |
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} |
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catch (InterruptedException ex) { |
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unexpectedException(); |
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} |
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finally { |
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Policy.setPolicy(savedPolicy); |
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} |
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} |
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|
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/** |
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* execute of a privileged exception action runs it to completion |
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*/ |
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public void testExecutePrivilegedExceptionAction() { |
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Policy savedPolicy = Policy.getPolicy(); |
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AdjustablePolicy policy = new AdjustablePolicy(); |
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policy.addPermission(new RuntimePermission("getContextClassLoader")); |
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policy.addPermission(new RuntimePermission("setContextClassLoader")); |
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Policy.setPolicy(policy); |
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try { |
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ExecutorService e = new DirectExecutorService(); |
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Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
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public Object run() { |
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return TEST_STRING; |
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}})); |
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|
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Object result = future.get(); |
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assertSame(TEST_STRING, result); |
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} |
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catch (ExecutionException ex) { |
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unexpectedException(); |
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} |
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catch (InterruptedException ex) { |
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unexpectedException(); |
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} |
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finally { |
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Policy.setPolicy(savedPolicy); |
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} |
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} |
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|
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/** |
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* execute of a failed privileged exception action reports exception |
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*/ |
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public void testExecuteFailedPrivilegedExceptionAction() { |
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Policy savedPolicy = Policy.getPolicy(); |
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AdjustablePolicy policy = new AdjustablePolicy(); |
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policy.addPermission(new RuntimePermission("getContextClassLoader")); |
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policy.addPermission(new RuntimePermission("setContextClassLoader")); |
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Policy.setPolicy(policy); |
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try { |
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ExecutorService e = new DirectExecutorService(); |
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Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
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public Object run() throws Exception { |
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throw new IndexOutOfBoundsException(); |
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}})); |
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|
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Object result = future.get(); |
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shouldThrow(); |
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} |
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catch (ExecutionException success) { |
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} |
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catch (InterruptedException ex) { |
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unexpectedException(); |
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} |
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finally { |
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Policy.setPolicy(savedPolicy); |
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} |
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} |
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|
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/** |
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* invoke of a callable runs it to completion |
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*/ |
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public void testInvokeCallable() { |
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try { |
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ExecutorService e = new DirectExecutorService(); |
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String result = e.invoke(new StringTask()); |
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|
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assertSame(TEST_STRING, result); |
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} |
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catch (ExecutionException ex) { |
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unexpectedException(); |
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} |
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catch (InterruptedException ex) { |
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unexpectedException(); |
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} |
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} |
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|
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/** |
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* execute with a null runnable throws NPE |
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*/ |
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public void testExecuteNullRunnable() { |
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try { |
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ExecutorService e = new DirectExecutorService(); |
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TrackedShortRunnable task = null; |
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Future<?> future = e.submit(task); |
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shouldThrow(); |
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} |
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catch (NullPointerException success) { |
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} |
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catch (Exception ex) { |
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unexpectedException(); |
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} |
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} |
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|
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|
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/** |
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* execute of a null callable throws NPE |
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*/ |
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public void testExecuteNullCallable() { |
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try { |
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ExecutorService e = new DirectExecutorService(); |
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StringTask t = null; |
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Future<String> future = e.submit(t); |
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shouldThrow(); |
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} |
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catch (NullPointerException success) { |
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} |
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catch (Exception ex) { |
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unexpectedException(); |
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} |
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} |
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|
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/** |
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* invoke of a null callable throws NPE |
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*/ |
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public void testInvokeNullCallable() { |
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try { |
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ExecutorService e = new DirectExecutorService(); |
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StringTask t = null; |
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String result = e.invoke(t); |
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shouldThrow(); |
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} |
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catch (NullPointerException success) { |
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} |
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catch (Exception ex) { |
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unexpectedException(); |
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} |
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} |
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|
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/** |
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* execute(Executor, Runnable) throws RejectedExecutionException |
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* if saturated. |
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*/ |
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public void testExecute1() { |
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ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1)); |
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try { |
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|
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for(int i = 0; i < 5; ++i){ |
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p.submit(new MediumRunnable()); |
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} |
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shouldThrow(); |
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} catch(RejectedExecutionException success){} |
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joinPool(p); |
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} |
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|
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/** |
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* execute(Executor, Callable)throws RejectedExecutionException |
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* if saturated. |
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*/ |
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public void testExecute2() { |
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ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1)); |
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try { |
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for(int i = 0; i < 5; ++i) { |
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p.submit(new SmallCallable()); |
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} |
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shouldThrow(); |
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} catch(RejectedExecutionException e){} |
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joinPool(p); |
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} |
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|
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|
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/** |
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* invoke(Executor, Callable) throws InterruptedException if |
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* caller interrupted. |
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*/ |
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public void testInterruptedInvoke() { |
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final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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Thread t = new Thread(new Runnable() { |
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public void run() { |
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try { |
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p.invoke(new Callable<Object>() { |
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public Object call() { |
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try { |
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Thread.sleep(MEDIUM_DELAY_MS); |
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shouldThrow(); |
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} catch(InterruptedException e){ |
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} |
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return null; |
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} |
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}); |
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} catch(InterruptedException success){ |
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} catch(Exception e) { |
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unexpectedException(); |
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} |
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|
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} |
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}); |
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try { |
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t.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
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joinPool(p); |
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} |
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|
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/** |
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* invoke(Executor, Callable) throws InterruptedException if |
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* callable throws exception |
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*/ |
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public void testInvoke5() { |
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final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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|
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final Callable c = new Callable() { |
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public Object call() { |
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try { |
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p.invoke(new SmallCallable()); |
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shouldThrow(); |
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} catch(InterruptedException e){} |
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catch(RejectedExecutionException e2){} |
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catch(ExecutionException e3){} |
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return Boolean.TRUE; |
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} |
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}; |
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|
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|
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|
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Thread t = new Thread(new Runnable() { |
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public void run() { |
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try { |
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c.call(); |
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} catch(Exception e){} |
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} |
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}); |
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try { |
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t.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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t.join(); |
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} catch(InterruptedException e){ |
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unexpectedException(); |
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} |
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|
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joinPool(p); |
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} |
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|
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/** |
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* invoke(Executor, Callable) will throw ExecutionException |
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* if callable throws exception |
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*/ |
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public void testInvoke6() { |
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ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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|
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try { |
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Callable c = new Callable() { |
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public Object call() { |
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int i = 5/0; |
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return Boolean.TRUE; |
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} |
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}; |
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|
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for(int i =0; i < 5; i++){ |
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p.invoke(c); |
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} |
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|
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shouldThrow(); |
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} |
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catch(ExecutionException success){ |
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} catch(Exception e) { |
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unexpectedException(); |
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} |
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joinPool(p); |
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} |
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|
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} |