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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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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 static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.io.*; |
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|
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public class SynchronousQueueTest extends JSR166TestCase { |
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|
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public static class Fair extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new SynchronousQueue(true); |
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} |
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} |
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|
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public static class NonFair extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new SynchronousQueue(false); |
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} |
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} |
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|
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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junit.textui.TestRunner.run(suite()); |
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} |
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|
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public static Test suite() { |
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return new TestSuite(SynchronousQueueTest.class); |
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return newTestSuite(SynchronousQueueTest.class, |
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new Fair().testSuite(), |
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new NonFair().testSuite()); |
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} |
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|
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/** |
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* A SynchronousQueue is both empty and full |
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* Any SynchronousQueue is both empty and full |
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*/ |
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public void testEmptyFull() { |
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SynchronousQueue q = new SynchronousQueue(); |
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public void testEmptyFull(SynchronousQueue q) { |
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assertTrue(q.isEmpty()); |
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assertEquals(0, q.size()); |
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assertEquals(0, q.size()); |
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assertEquals(0, q.remainingCapacity()); |
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assertFalse(q.offer(zero)); |
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} |
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|
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/** |
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* A non-fair SynchronousQueue is both empty and full |
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*/ |
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public void testEmptyFull() { |
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testEmptyFull(new SynchronousQueue()); |
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} |
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|
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/** |
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* A fair SynchronousQueue is both empty and full |
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*/ |
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public void testFairEmptyFull() { |
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SynchronousQueue q = new SynchronousQueue(true); |
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assertTrue(q.isEmpty()); |
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assertEquals(0, q.size()); |
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assertEquals(0, q.remainingCapacity()); |
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assertFalse(q.offer(zero)); |
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testEmptyFull(new SynchronousQueue(true)); |
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} |
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|
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/** |
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* offer(null) throws NPE |
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*/ |
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public void testOfferNull() { |
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try { |
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try { |
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SynchronousQueue q = new SynchronousQueue(); |
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q.offer(null); |
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shouldThrow(); |
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} catch (NullPointerException success) { } |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* add(null) throws NPE |
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*/ |
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public void testAddNull() { |
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try { |
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try { |
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SynchronousQueue q = new SynchronousQueue(); |
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q.add(null); |
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shouldThrow(); |
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} catch (NullPointerException success) { } |
82 |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* add throws ISE if no active taker |
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*/ |
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public void testAdd() { |
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try { |
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try { |
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SynchronousQueue q = new SynchronousQueue(); |
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assertEquals(0, q.remainingCapacity()); |
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q.add(one); |
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shouldThrow(); |
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} catch (IllegalStateException success){ |
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} |
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} catch (IllegalStateException success) {} |
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} |
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|
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/** |
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SynchronousQueue q = new SynchronousQueue(); |
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q.addAll(null); |
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shouldThrow(); |
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} |
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catch (NullPointerException success) {} |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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SynchronousQueue q = new SynchronousQueue(); |
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q.addAll(q); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success) {} |
124 |
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} catch (IllegalArgumentException success) {} |
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} |
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|
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/** |
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Integer[] ints = new Integer[1]; |
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q.addAll(Arrays.asList(ints)); |
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shouldThrow(); |
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} |
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catch (NullPointerException success) {} |
136 |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* addAll throws ISE if no active taker |
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*/ |
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ints[i] = new Integer(i); |
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q.addAll(Arrays.asList(ints)); |
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shouldThrow(); |
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} |
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catch (IllegalStateException success) {} |
150 |
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} catch (IllegalStateException success) {} |
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} |
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|
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/** |
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* put(null) throws NPE |
155 |
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*/ |
156 |
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public void testPutNull() { |
157 |
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try { |
156 |
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public void testPutNull() throws InterruptedException { |
157 |
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try { |
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SynchronousQueue q = new SynchronousQueue(); |
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q.put(null); |
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shouldThrow(); |
161 |
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} |
162 |
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catch (NullPointerException success){ |
150 |
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} |
151 |
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catch (InterruptedException ie) { |
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unexpectedException(); |
153 |
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} |
154 |
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} |
161 |
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} catch (NullPointerException success) {} |
162 |
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} |
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|
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/** |
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* put blocks interruptibly if no active taker |
166 |
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*/ |
167 |
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public void testBlockingPut() { |
168 |
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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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SynchronousQueue q = new SynchronousQueue(); |
172 |
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q.put(zero); |
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threadShouldThrow(); |
166 |
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} catch (InterruptedException ie){ |
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} |
168 |
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}}); |
167 |
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public void testBlockingPut() throws InterruptedException { |
168 |
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Thread t = new Thread(new CheckedInterruptedRunnable() { |
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public void realRun() throws InterruptedException { |
170 |
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SynchronousQueue q = new SynchronousQueue(); |
171 |
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q.put(zero); |
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}}); |
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|
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t.start(); |
175 |
< |
try { |
176 |
< |
Thread.sleep(SHORT_DELAY_MS); |
177 |
< |
t.interrupt(); |
173 |
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t.join(); |
174 |
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} |
175 |
< |
catch (InterruptedException ie) { |
176 |
< |
unexpectedException(); |
177 |
< |
} |
175 |
> |
delay(SHORT_DELAY_MS); |
176 |
> |
t.interrupt(); |
177 |
> |
t.join(); |
178 |
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} |
179 |
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|
180 |
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/** |
181 |
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* put blocks waiting for take |
182 |
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*/ |
183 |
< |
public void testPutWithTake() { |
183 |
> |
public void testPutWithTake() throws InterruptedException { |
184 |
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final SynchronousQueue q = new SynchronousQueue(); |
185 |
< |
Thread t = new Thread(new Runnable() { |
186 |
< |
public void run() { |
187 |
< |
int added = 0; |
188 |
< |
try { |
189 |
< |
q.put(new Object()); |
190 |
< |
++added; |
191 |
< |
q.put(new Object()); |
192 |
< |
++added; |
193 |
< |
q.put(new Object()); |
194 |
< |
++added; |
195 |
< |
q.put(new Object()); |
185 |
> |
Thread t = new Thread(new CheckedRunnable() { |
186 |
> |
public void realRun() throws InterruptedException { |
187 |
> |
int added = 0; |
188 |
> |
try { |
189 |
> |
while (true) { |
190 |
> |
q.put(added); |
191 |
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++added; |
197 |
– |
threadShouldThrow(); |
198 |
– |
} catch (InterruptedException e){ |
199 |
– |
assertTrue(added >= 1); |
192 |
|
} |
193 |
+ |
} catch (InterruptedException success) { |
194 |
+ |
assertEquals(1, added); |
195 |
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} |
196 |
< |
}); |
197 |
< |
try { |
198 |
< |
t.start(); |
199 |
< |
Thread.sleep(SHORT_DELAY_MS); |
200 |
< |
q.take(); |
201 |
< |
Thread.sleep(SHORT_DELAY_MS); |
202 |
< |
t.interrupt(); |
203 |
< |
t.join(); |
210 |
< |
} catch (Exception e){ |
211 |
< |
unexpectedException(); |
212 |
< |
} |
196 |
> |
}}); |
197 |
> |
|
198 |
> |
t.start(); |
199 |
> |
delay(SHORT_DELAY_MS); |
200 |
> |
assertEquals(0, q.take()); |
201 |
> |
delay(SHORT_DELAY_MS); |
202 |
> |
t.interrupt(); |
203 |
> |
t.join(); |
204 |
|
} |
205 |
|
|
206 |
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/** |
207 |
|
* timed offer times out if elements not taken |
208 |
|
*/ |
209 |
< |
public void testTimedOffer() { |
210 |
< |
final SynchronousQueue q = new SynchronousQueue(); |
211 |
< |
Thread t = new Thread(new Runnable() { |
212 |
< |
public void run() { |
213 |
< |
try { |
214 |
< |
|
215 |
< |
threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
216 |
< |
q.offer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
217 |
< |
threadShouldThrow(); |
218 |
< |
} catch (InterruptedException success){} |
219 |
< |
} |
220 |
< |
}); |
221 |
< |
|
222 |
< |
try { |
223 |
< |
t.start(); |
224 |
< |
Thread.sleep(SMALL_DELAY_MS); |
225 |
< |
t.interrupt(); |
226 |
< |
t.join(); |
236 |
< |
} catch (Exception e){ |
237 |
< |
unexpectedException(); |
238 |
< |
} |
209 |
> |
public void testTimedOffer(final SynchronousQueue q) |
210 |
> |
throws InterruptedException { |
211 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
212 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
213 |
> |
public void realRun() throws InterruptedException { |
214 |
> |
long startTime = System.nanoTime(); |
215 |
> |
assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS)); |
216 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
217 |
> |
pleaseInterrupt.countDown(); |
218 |
> |
try { |
219 |
> |
q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS); |
220 |
> |
shouldThrow(); |
221 |
> |
} catch (InterruptedException success) {} |
222 |
> |
}}); |
223 |
> |
|
224 |
> |
await(pleaseInterrupt); |
225 |
> |
t.interrupt(); |
226 |
> |
awaitTermination(t); |
227 |
|
} |
228 |
|
|
241 |
– |
|
229 |
|
/** |
230 |
< |
* take blocks interruptibly when empty |
230 |
> |
* timed offer times out if elements not taken |
231 |
|
*/ |
232 |
< |
public void testTakeFromEmpty() { |
233 |
< |
final SynchronousQueue q = new SynchronousQueue(); |
247 |
< |
Thread t = new Thread(new Runnable() { |
248 |
< |
public void run() { |
249 |
< |
try { |
250 |
< |
q.take(); |
251 |
< |
threadShouldThrow(); |
252 |
< |
} catch (InterruptedException success){ } |
253 |
< |
} |
254 |
< |
}); |
255 |
< |
try { |
256 |
< |
t.start(); |
257 |
< |
Thread.sleep(SHORT_DELAY_MS); |
258 |
< |
t.interrupt(); |
259 |
< |
t.join(); |
260 |
< |
} catch (Exception e){ |
261 |
< |
unexpectedException(); |
262 |
< |
} |
232 |
> |
public void testTimedOffer() throws InterruptedException { |
233 |
> |
testTimedOffer(new SynchronousQueue()); |
234 |
|
} |
235 |
|
|
236 |
+ |
/** |
237 |
+ |
* timed offer times out if elements not taken |
238 |
+ |
*/ |
239 |
+ |
public void testFairTimedOffer() throws InterruptedException { |
240 |
+ |
testTimedOffer(new SynchronousQueue(true)); |
241 |
+ |
} |
242 |
|
|
243 |
|
/** |
244 |
|
* put blocks interruptibly if no active taker |
245 |
|
*/ |
246 |
< |
public void testFairBlockingPut() { |
247 |
< |
Thread t = new Thread(new Runnable() { |
248 |
< |
public void run() { |
249 |
< |
try { |
250 |
< |
SynchronousQueue q = new SynchronousQueue(true); |
251 |
< |
q.put(zero); |
252 |
< |
threadShouldThrow(); |
276 |
< |
} catch (InterruptedException ie){ |
277 |
< |
} |
278 |
< |
}}); |
246 |
> |
public void testFairBlockingPut() throws InterruptedException { |
247 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
248 |
> |
public void realRun() throws InterruptedException { |
249 |
> |
SynchronousQueue q = new SynchronousQueue(true); |
250 |
> |
q.put(zero); |
251 |
> |
}}); |
252 |
> |
|
253 |
|
t.start(); |
254 |
< |
try { |
255 |
< |
Thread.sleep(SHORT_DELAY_MS); |
256 |
< |
t.interrupt(); |
283 |
< |
t.join(); |
284 |
< |
} |
285 |
< |
catch (InterruptedException ie) { |
286 |
< |
unexpectedException(); |
287 |
< |
} |
254 |
> |
delay(SHORT_DELAY_MS); |
255 |
> |
t.interrupt(); |
256 |
> |
t.join(); |
257 |
|
} |
258 |
|
|
259 |
|
/** |
260 |
|
* put blocks waiting for take |
261 |
|
*/ |
262 |
< |
public void testFairPutWithTake() { |
262 |
> |
public void testFairPutWithTake() throws InterruptedException { |
263 |
|
final SynchronousQueue q = new SynchronousQueue(true); |
264 |
< |
Thread t = new Thread(new Runnable() { |
265 |
< |
public void run() { |
266 |
< |
int added = 0; |
267 |
< |
try { |
268 |
< |
q.put(new Object()); |
269 |
< |
++added; |
301 |
< |
q.put(new Object()); |
302 |
< |
++added; |
303 |
< |
q.put(new Object()); |
304 |
< |
++added; |
305 |
< |
q.put(new Object()); |
264 |
> |
Thread t = new Thread(new CheckedRunnable() { |
265 |
> |
public void realRun() throws InterruptedException { |
266 |
> |
int added = 0; |
267 |
> |
try { |
268 |
> |
while (true) { |
269 |
> |
q.put(added); |
270 |
|
++added; |
307 |
– |
threadShouldThrow(); |
308 |
– |
} catch (InterruptedException e){ |
309 |
– |
assertTrue(added >= 1); |
271 |
|
} |
272 |
+ |
} catch (InterruptedException success) { |
273 |
+ |
assertEquals(1, added); |
274 |
|
} |
275 |
< |
}); |
313 |
< |
try { |
314 |
< |
t.start(); |
315 |
< |
Thread.sleep(SHORT_DELAY_MS); |
316 |
< |
q.take(); |
317 |
< |
Thread.sleep(SHORT_DELAY_MS); |
318 |
< |
t.interrupt(); |
319 |
< |
t.join(); |
320 |
< |
} catch (Exception e){ |
321 |
< |
unexpectedException(); |
322 |
< |
} |
323 |
< |
} |
324 |
< |
|
325 |
< |
/** |
326 |
< |
* timed offer times out if elements not taken |
327 |
< |
*/ |
328 |
< |
public void testFairTimedOffer() { |
329 |
< |
final SynchronousQueue q = new SynchronousQueue(true); |
330 |
< |
Thread t = new Thread(new Runnable() { |
331 |
< |
public void run() { |
332 |
< |
try { |
333 |
< |
|
334 |
< |
threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
335 |
< |
q.offer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
336 |
< |
threadShouldThrow(); |
337 |
< |
} catch (InterruptedException success){} |
338 |
< |
} |
339 |
< |
}); |
275 |
> |
}}); |
276 |
|
|
277 |
< |
try { |
278 |
< |
t.start(); |
279 |
< |
Thread.sleep(SMALL_DELAY_MS); |
280 |
< |
t.interrupt(); |
281 |
< |
t.join(); |
282 |
< |
} catch (Exception e){ |
347 |
< |
unexpectedException(); |
348 |
< |
} |
277 |
> |
t.start(); |
278 |
> |
delay(SHORT_DELAY_MS); |
279 |
> |
assertEquals(0, q.take()); |
280 |
> |
delay(SHORT_DELAY_MS); |
281 |
> |
t.interrupt(); |
282 |
> |
t.join(); |
283 |
|
} |
284 |
|
|
351 |
– |
|
285 |
|
/** |
286 |
|
* take blocks interruptibly when empty |
287 |
|
*/ |
288 |
< |
public void testFairTakeFromEmpty() { |
288 |
> |
public void testFairTakeFromEmpty() throws InterruptedException { |
289 |
|
final SynchronousQueue q = new SynchronousQueue(true); |
290 |
< |
Thread t = new Thread(new Runnable() { |
291 |
< |
public void run() { |
292 |
< |
try { |
293 |
< |
q.take(); |
294 |
< |
threadShouldThrow(); |
295 |
< |
} catch (InterruptedException success){ } |
296 |
< |
} |
297 |
< |
}); |
298 |
< |
try { |
366 |
< |
t.start(); |
367 |
< |
Thread.sleep(SHORT_DELAY_MS); |
368 |
< |
t.interrupt(); |
369 |
< |
t.join(); |
370 |
< |
} catch (Exception e){ |
371 |
< |
unexpectedException(); |
372 |
< |
} |
290 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
291 |
> |
public void realRun() throws InterruptedException { |
292 |
> |
q.take(); |
293 |
> |
}}); |
294 |
> |
|
295 |
> |
t.start(); |
296 |
> |
delay(SHORT_DELAY_MS); |
297 |
> |
t.interrupt(); |
298 |
> |
t.join(); |
299 |
|
} |
300 |
|
|
301 |
|
/** |
302 |
< |
* poll fails unless active taker |
302 |
> |
* poll return null if no active putter |
303 |
|
*/ |
304 |
|
public void testPoll() { |
305 |
|
SynchronousQueue q = new SynchronousQueue(); |
306 |
< |
assertNull(q.poll()); |
306 |
> |
assertNull(q.poll()); |
307 |
|
} |
308 |
|
|
309 |
|
/** |
310 |
< |
* timed pool with zero timeout times out if no active taker |
310 |
> |
* timed poll with zero timeout times out if no active putter |
311 |
|
*/ |
312 |
< |
public void testTimedPoll0() { |
313 |
< |
try { |
314 |
< |
SynchronousQueue q = new SynchronousQueue(); |
389 |
< |
assertNull(q.poll(0, TimeUnit.MILLISECONDS)); |
390 |
< |
} catch (InterruptedException e){ |
391 |
< |
unexpectedException(); |
392 |
< |
} |
312 |
> |
public void testTimedPoll0() throws InterruptedException { |
313 |
> |
SynchronousQueue q = new SynchronousQueue(); |
314 |
> |
assertNull(q.poll(0, MILLISECONDS)); |
315 |
|
} |
316 |
|
|
317 |
|
/** |
318 |
< |
* timed pool with nonzero timeout times out if no active taker |
318 |
> |
* timed poll with nonzero timeout times out if no active putter |
319 |
|
*/ |
320 |
< |
public void testTimedPoll() { |
321 |
< |
try { |
322 |
< |
SynchronousQueue q = new SynchronousQueue(); |
323 |
< |
assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
324 |
< |
} catch (InterruptedException e){ |
403 |
< |
unexpectedException(); |
404 |
< |
} |
320 |
> |
public void testTimedPoll() throws InterruptedException { |
321 |
> |
SynchronousQueue q = new SynchronousQueue(); |
322 |
> |
long t0 = System.nanoTime(); |
323 |
> |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
324 |
> |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
325 |
|
} |
326 |
|
|
327 |
|
/** |
328 |
|
* Interrupted timed poll throws InterruptedException instead of |
329 |
|
* returning timeout status |
330 |
|
*/ |
331 |
< |
public void testInterruptedTimedPoll() { |
332 |
< |
Thread t = new Thread(new Runnable() { |
333 |
< |
public void run() { |
334 |
< |
try { |
335 |
< |
SynchronousQueue q = new SynchronousQueue(); |
336 |
< |
assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
337 |
< |
} catch (InterruptedException success){ |
338 |
< |
} |
339 |
< |
}}); |
340 |
< |
t.start(); |
341 |
< |
try { |
342 |
< |
Thread.sleep(SHORT_DELAY_MS); |
343 |
< |
t.interrupt(); |
344 |
< |
t.join(); |
345 |
< |
} |
346 |
< |
catch (InterruptedException ie) { |
347 |
< |
unexpectedException(); |
348 |
< |
} |
331 |
> |
public void testInterruptedTimedPoll(final SynchronousQueue q) |
332 |
> |
throws InterruptedException { |
333 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
334 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
335 |
> |
public void realRun() throws InterruptedException { |
336 |
> |
long t0 = System.nanoTime(); |
337 |
> |
threadStarted.countDown(); |
338 |
> |
try { |
339 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
340 |
> |
shouldThrow(); |
341 |
> |
} catch (InterruptedException success) {} |
342 |
> |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
343 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
344 |
> |
}}); |
345 |
> |
|
346 |
> |
threadStarted.await(); |
347 |
> |
delay(SHORT_DELAY_MS); |
348 |
> |
t.interrupt(); |
349 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
350 |
|
} |
351 |
|
|
352 |
|
/** |
353 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
354 |
< |
* on interruption throws |
353 |
> |
* Interrupted timed poll throws InterruptedException instead of |
354 |
> |
* returning timeout status |
355 |
|
*/ |
356 |
< |
public void testTimedPollWithOffer() { |
357 |
< |
final SynchronousQueue q = new SynchronousQueue(); |
437 |
< |
Thread t = new Thread(new Runnable() { |
438 |
< |
public void run() { |
439 |
< |
try { |
440 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
441 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
442 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
443 |
< |
threadShouldThrow(); |
444 |
< |
} catch (InterruptedException success) { } |
445 |
< |
} |
446 |
< |
}); |
447 |
< |
try { |
448 |
< |
t.start(); |
449 |
< |
Thread.sleep(SMALL_DELAY_MS); |
450 |
< |
assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
451 |
< |
t.interrupt(); |
452 |
< |
t.join(); |
453 |
< |
} catch (Exception e){ |
454 |
< |
unexpectedException(); |
455 |
< |
} |
356 |
> |
public void testInterruptedTimedPoll() throws InterruptedException { |
357 |
> |
testInterruptedTimedPoll(new SynchronousQueue()); |
358 |
|
} |
359 |
|
|
360 |
|
/** |
361 |
|
* Interrupted timed poll throws InterruptedException instead of |
362 |
|
* returning timeout status |
363 |
|
*/ |
364 |
< |
public void testFairInterruptedTimedPoll() { |
365 |
< |
Thread t = new Thread(new Runnable() { |
464 |
< |
public void run() { |
465 |
< |
try { |
466 |
< |
SynchronousQueue q = new SynchronousQueue(true); |
467 |
< |
assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
468 |
< |
} catch (InterruptedException success){ |
469 |
< |
} |
470 |
< |
}}); |
471 |
< |
t.start(); |
472 |
< |
try { |
473 |
< |
Thread.sleep(SHORT_DELAY_MS); |
474 |
< |
t.interrupt(); |
475 |
< |
t.join(); |
476 |
< |
} |
477 |
< |
catch (InterruptedException ie) { |
478 |
< |
unexpectedException(); |
479 |
< |
} |
364 |
> |
public void testFairInterruptedTimedPoll() throws InterruptedException { |
365 |
> |
testInterruptedTimedPoll(new SynchronousQueue(true)); |
366 |
|
} |
367 |
|
|
368 |
|
/** |
369 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
370 |
< |
* on interruption throws |
369 |
> |
* timed poll before a delayed offer times out, returning null; |
370 |
> |
* after offer succeeds; on interruption throws |
371 |
|
*/ |
372 |
< |
public void testFairTimedPollWithOffer() { |
372 |
> |
public void testFairTimedPollWithOffer() throws InterruptedException { |
373 |
|
final SynchronousQueue q = new SynchronousQueue(true); |
374 |
< |
Thread t = new Thread(new Runnable() { |
375 |
< |
public void run() { |
376 |
< |
try { |
377 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
378 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
379 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
380 |
< |
threadShouldThrow(); |
381 |
< |
} catch (InterruptedException success) { } |
382 |
< |
} |
383 |
< |
}); |
384 |
< |
try { |
385 |
< |
t.start(); |
386 |
< |
Thread.sleep(SMALL_DELAY_MS); |
387 |
< |
assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
388 |
< |
t.interrupt(); |
389 |
< |
t.join(); |
390 |
< |
} catch (Exception e){ |
391 |
< |
unexpectedException(); |
392 |
< |
} |
393 |
< |
} |
374 |
> |
final CountDownLatch pleaseOffer = new CountDownLatch(1); |
375 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
376 |
> |
public void realRun() throws InterruptedException { |
377 |
> |
long t0 = System.nanoTime(); |
378 |
> |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
379 |
> |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
380 |
> |
|
381 |
> |
pleaseOffer.countDown(); |
382 |
> |
t0 = System.nanoTime(); |
383 |
> |
assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
384 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
385 |
> |
|
386 |
> |
t0 = System.nanoTime(); |
387 |
> |
try { |
388 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
389 |
> |
shouldThrow(); |
390 |
> |
} catch (InterruptedException success) {} |
391 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
392 |
> |
}}); |
393 |
> |
|
394 |
> |
assertTrue(pleaseOffer.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
395 |
> |
long t0 = System.nanoTime(); |
396 |
> |
assertTrue(q.offer(zero, LONG_DELAY_MS, MILLISECONDS)); |
397 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
398 |
|
|
399 |
+ |
t.interrupt(); |
400 |
+ |
awaitTermination(t, MEDIUM_DELAY_MS); |
401 |
+ |
} |
402 |
|
|
403 |
|
/** |
404 |
< |
* peek returns null |
404 |
> |
* peek() returns null if no active putter |
405 |
|
*/ |
406 |
|
public void testPeek() { |
407 |
|
SynchronousQueue q = new SynchronousQueue(); |
408 |
< |
assertNull(q.peek()); |
408 |
> |
assertNull(q.peek()); |
409 |
|
} |
410 |
|
|
411 |
|
/** |
412 |
< |
* element throws NSEE |
412 |
> |
* element() throws NSEE if no active putter |
413 |
|
*/ |
414 |
|
public void testElement() { |
415 |
|
SynchronousQueue q = new SynchronousQueue(); |
416 |
|
try { |
417 |
|
q.element(); |
418 |
|
shouldThrow(); |
419 |
< |
} |
527 |
< |
catch (NoSuchElementException success) {} |
419 |
> |
} catch (NoSuchElementException success) {} |
420 |
|
} |
421 |
|
|
422 |
|
/** |
423 |
< |
* remove throws NSEE if no active taker |
423 |
> |
* remove() throws NSEE if no active putter |
424 |
|
*/ |
425 |
|
public void testRemove() { |
426 |
|
SynchronousQueue q = new SynchronousQueue(); |
427 |
|
try { |
428 |
|
q.remove(); |
429 |
|
shouldThrow(); |
430 |
< |
} catch (NoSuchElementException success){ |
539 |
< |
} |
430 |
> |
} catch (NoSuchElementException success) {} |
431 |
|
} |
432 |
|
|
433 |
|
/** |
495 |
|
*/ |
496 |
|
public void testToArray() { |
497 |
|
SynchronousQueue q = new SynchronousQueue(); |
498 |
< |
Object[] o = q.toArray(); |
498 |
> |
Object[] o = q.toArray(); |
499 |
|
assertEquals(o.length, 0); |
500 |
|
} |
501 |
|
|
504 |
|
*/ |
505 |
|
public void testToArray2() { |
506 |
|
SynchronousQueue q = new SynchronousQueue(); |
507 |
< |
Integer[] ints = new Integer[1]; |
507 |
> |
Integer[] ints = new Integer[1]; |
508 |
|
assertNull(ints[0]); |
509 |
|
} |
510 |
|
|
512 |
|
* toArray(null) throws NPE |
513 |
|
*/ |
514 |
|
public void testToArray_BadArg() { |
515 |
< |
try { |
516 |
< |
SynchronousQueue q = new SynchronousQueue(); |
517 |
< |
Object o[] = q.toArray(null); |
518 |
< |
shouldThrow(); |
519 |
< |
} catch (NullPointerException success){} |
515 |
> |
SynchronousQueue q = new SynchronousQueue(); |
516 |
> |
try { |
517 |
> |
Object o[] = q.toArray(null); |
518 |
> |
shouldThrow(); |
519 |
> |
} catch (NullPointerException success) {} |
520 |
|
} |
521 |
|
|
522 |
|
|
525 |
|
*/ |
526 |
|
public void testIterator() { |
527 |
|
SynchronousQueue q = new SynchronousQueue(); |
528 |
< |
Iterator it = q.iterator(); |
528 |
> |
Iterator it = q.iterator(); |
529 |
|
assertFalse(it.hasNext()); |
530 |
|
try { |
531 |
|
Object x = it.next(); |
532 |
|
shouldThrow(); |
533 |
< |
} |
643 |
< |
catch (NoSuchElementException success) {} |
533 |
> |
} catch (NoSuchElementException success) {} |
534 |
|
} |
535 |
|
|
536 |
|
/** |
538 |
|
*/ |
539 |
|
public void testIteratorRemove() { |
540 |
|
SynchronousQueue q = new SynchronousQueue(); |
541 |
< |
Iterator it = q.iterator(); |
541 |
> |
Iterator it = q.iterator(); |
542 |
|
try { |
543 |
|
it.remove(); |
544 |
|
shouldThrow(); |
545 |
< |
} |
656 |
< |
catch (IllegalStateException success) {} |
545 |
> |
} catch (IllegalStateException success) {} |
546 |
|
} |
547 |
|
|
548 |
|
/** |
561 |
|
public void testOfferInExecutor() { |
562 |
|
final SynchronousQueue q = new SynchronousQueue(); |
563 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
675 |
– |
final Integer one = new Integer(1); |
676 |
– |
|
677 |
– |
executor.execute(new Runnable() { |
678 |
– |
public void run() { |
679 |
– |
threadAssertFalse(q.offer(one)); |
680 |
– |
try { |
681 |
– |
threadAssertTrue(q.offer(one, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS)); |
682 |
– |
threadAssertEquals(0, q.remainingCapacity()); |
683 |
– |
} |
684 |
– |
catch (InterruptedException e) { |
685 |
– |
threadUnexpectedException(); |
686 |
– |
} |
687 |
– |
} |
688 |
– |
}); |
564 |
|
|
565 |
< |
executor.execute(new Runnable() { |
566 |
< |
public void run() { |
567 |
< |
try { |
568 |
< |
Thread.sleep(SMALL_DELAY_MS); |
569 |
< |
threadAssertEquals(one, q.take()); |
570 |
< |
} |
571 |
< |
catch (InterruptedException e) { |
572 |
< |
threadUnexpectedException(); |
573 |
< |
} |
574 |
< |
} |
575 |
< |
}); |
565 |
> |
executor.execute(new CheckedRunnable() { |
566 |
> |
public void realRun() throws InterruptedException { |
567 |
> |
assertFalse(q.offer(one)); |
568 |
> |
assertTrue(q.offer(one, MEDIUM_DELAY_MS, MILLISECONDS)); |
569 |
> |
assertEquals(0, q.remainingCapacity()); |
570 |
> |
}}); |
571 |
> |
|
572 |
> |
executor.execute(new CheckedRunnable() { |
573 |
> |
public void realRun() throws InterruptedException { |
574 |
> |
delay(SMALL_DELAY_MS); |
575 |
> |
assertSame(one, q.take()); |
576 |
> |
}}); |
577 |
|
|
578 |
|
joinPool(executor); |
703 |
– |
|
579 |
|
} |
580 |
|
|
581 |
|
/** |
584 |
|
public void testPollInExecutor() { |
585 |
|
final SynchronousQueue q = new SynchronousQueue(); |
586 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
587 |
< |
executor.execute(new Runnable() { |
588 |
< |
public void run() { |
589 |
< |
threadAssertNull(q.poll()); |
590 |
< |
try { |
591 |
< |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS)); |
592 |
< |
threadAssertTrue(q.isEmpty()); |
593 |
< |
} |
594 |
< |
catch (InterruptedException e) { |
595 |
< |
threadUnexpectedException(); |
596 |
< |
} |
597 |
< |
} |
598 |
< |
}); |
724 |
< |
|
725 |
< |
executor.execute(new Runnable() { |
726 |
< |
public void run() { |
727 |
< |
try { |
728 |
< |
Thread.sleep(SMALL_DELAY_MS); |
729 |
< |
q.put(new Integer(1)); |
730 |
< |
} |
731 |
< |
catch (InterruptedException e) { |
732 |
< |
threadUnexpectedException(); |
733 |
< |
} |
734 |
< |
} |
735 |
< |
}); |
587 |
> |
executor.execute(new CheckedRunnable() { |
588 |
> |
public void realRun() throws InterruptedException { |
589 |
> |
assertNull(q.poll()); |
590 |
> |
assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
591 |
> |
assertTrue(q.isEmpty()); |
592 |
> |
}}); |
593 |
> |
|
594 |
> |
executor.execute(new CheckedRunnable() { |
595 |
> |
public void realRun() throws InterruptedException { |
596 |
> |
delay(SHORT_DELAY_MS); |
597 |
> |
q.put(one); |
598 |
> |
}}); |
599 |
|
|
600 |
|
joinPool(executor); |
601 |
|
} |
603 |
|
/** |
604 |
|
* a deserialized serialized queue is usable |
605 |
|
*/ |
606 |
< |
public void testSerialization() { |
606 |
> |
public void testSerialization() throws Exception { |
607 |
|
SynchronousQueue q = new SynchronousQueue(); |
608 |
< |
try { |
609 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
610 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
611 |
< |
out.writeObject(q); |
612 |
< |
out.close(); |
613 |
< |
|
614 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
615 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
616 |
< |
SynchronousQueue r = (SynchronousQueue)in.readObject(); |
617 |
< |
assertEquals(q.size(), r.size()); |
618 |
< |
while (!q.isEmpty()) |
756 |
< |
assertEquals(q.remove(), r.remove()); |
757 |
< |
} catch (Exception e){ |
758 |
< |
e.printStackTrace(); |
759 |
< |
unexpectedException(); |
760 |
< |
} |
608 |
> |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
609 |
> |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
610 |
> |
out.writeObject(q); |
611 |
> |
out.close(); |
612 |
> |
|
613 |
> |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
614 |
> |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
615 |
> |
SynchronousQueue r = (SynchronousQueue)in.readObject(); |
616 |
> |
assertEquals(q.size(), r.size()); |
617 |
> |
while (!q.isEmpty()) |
618 |
> |
assertEquals(q.remove(), r.remove()); |
619 |
|
} |
620 |
|
|
621 |
|
/** |
626 |
|
try { |
627 |
|
q.drainTo(null); |
628 |
|
shouldThrow(); |
629 |
< |
} catch (NullPointerException success) { |
772 |
< |
} |
629 |
> |
} catch (NullPointerException success) {} |
630 |
|
} |
631 |
|
|
632 |
|
/** |
637 |
|
try { |
638 |
|
q.drainTo(q); |
639 |
|
shouldThrow(); |
640 |
< |
} catch (IllegalArgumentException success) { |
784 |
< |
} |
640 |
> |
} catch (IllegalArgumentException success) {} |
641 |
|
} |
642 |
|
|
643 |
|
/** |
654 |
|
/** |
655 |
|
* drainTo empties queue, unblocking a waiting put. |
656 |
|
*/ |
657 |
< |
public void testDrainToWithActivePut() { |
657 |
> |
public void testDrainToWithActivePut() throws InterruptedException { |
658 |
|
final SynchronousQueue q = new SynchronousQueue(); |
659 |
< |
Thread t = new Thread(new Runnable() { |
660 |
< |
public void run() { |
661 |
< |
try { |
662 |
< |
q.put(new Integer(1)); |
663 |
< |
} catch (InterruptedException ie){ |
664 |
< |
threadUnexpectedException(); |
665 |
< |
} |
666 |
< |
} |
667 |
< |
}); |
668 |
< |
try { |
669 |
< |
t.start(); |
670 |
< |
ArrayList l = new ArrayList(); |
671 |
< |
Thread.sleep(SHORT_DELAY_MS); |
672 |
< |
q.drainTo(l); |
817 |
< |
assertTrue(l.size() <= 1); |
818 |
< |
if (l.size() > 0) |
819 |
< |
assertEquals(l.get(0), new Integer(1)); |
820 |
< |
t.join(); |
821 |
< |
assertTrue(l.size() <= 1); |
822 |
< |
} catch (Exception e){ |
823 |
< |
unexpectedException(); |
824 |
< |
} |
659 |
> |
Thread t = new Thread(new CheckedRunnable() { |
660 |
> |
public void realRun() throws InterruptedException { |
661 |
> |
q.put(new Integer(1)); |
662 |
> |
}}); |
663 |
> |
|
664 |
> |
t.start(); |
665 |
> |
ArrayList l = new ArrayList(); |
666 |
> |
delay(SHORT_DELAY_MS); |
667 |
> |
q.drainTo(l); |
668 |
> |
assertTrue(l.size() <= 1); |
669 |
> |
if (l.size() > 0) |
670 |
> |
assertEquals(l.get(0), new Integer(1)); |
671 |
> |
t.join(); |
672 |
> |
assertTrue(l.size() <= 1); |
673 |
|
} |
674 |
|
|
675 |
|
/** |
680 |
|
try { |
681 |
|
q.drainTo(null, 0); |
682 |
|
shouldThrow(); |
683 |
< |
} catch (NullPointerException success) { |
836 |
< |
} |
683 |
> |
} catch (NullPointerException success) {} |
684 |
|
} |
685 |
|
|
686 |
|
/** |
691 |
|
try { |
692 |
|
q.drainTo(q, 0); |
693 |
|
shouldThrow(); |
694 |
< |
} catch (IllegalArgumentException success) { |
848 |
< |
} |
694 |
> |
} catch (IllegalArgumentException success) {} |
695 |
|
} |
696 |
|
|
697 |
|
/** |
698 |
|
* drainTo(c, n) empties up to n elements of queue into c |
699 |
|
*/ |
700 |
< |
public void testDrainToN() { |
700 |
> |
public void testDrainToN() throws InterruptedException { |
701 |
|
final SynchronousQueue q = new SynchronousQueue(); |
702 |
< |
Thread t1 = new Thread(new Runnable() { |
703 |
< |
public void run() { |
704 |
< |
try { |
705 |
< |
q.put(one); |
706 |
< |
} catch (InterruptedException ie){ |
707 |
< |
threadUnexpectedException(); |
708 |
< |
} |
709 |
< |
} |
710 |
< |
}); |
865 |
< |
Thread t2 = new Thread(new Runnable() { |
866 |
< |
public void run() { |
867 |
< |
try { |
868 |
< |
q.put(two); |
869 |
< |
} catch (InterruptedException ie){ |
870 |
< |
threadUnexpectedException(); |
871 |
< |
} |
872 |
< |
} |
873 |
< |
}); |
702 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
703 |
> |
public void realRun() throws InterruptedException { |
704 |
> |
q.put(one); |
705 |
> |
}}); |
706 |
> |
|
707 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
708 |
> |
public void realRun() throws InterruptedException { |
709 |
> |
q.put(two); |
710 |
> |
}}); |
711 |
|
|
712 |
< |
try { |
713 |
< |
t1.start(); |
714 |
< |
t2.start(); |
715 |
< |
ArrayList l = new ArrayList(); |
716 |
< |
Thread.sleep(SHORT_DELAY_MS); |
717 |
< |
q.drainTo(l, 1); |
718 |
< |
assertTrue(l.size() == 1); |
719 |
< |
q.drainTo(l, 1); |
720 |
< |
assertTrue(l.size() == 2); |
721 |
< |
assertTrue(l.contains(one)); |
722 |
< |
assertTrue(l.contains(two)); |
723 |
< |
t1.join(); |
887 |
< |
t2.join(); |
888 |
< |
} catch (Exception e){ |
889 |
< |
unexpectedException(); |
890 |
< |
} |
712 |
> |
t1.start(); |
713 |
> |
t2.start(); |
714 |
> |
ArrayList l = new ArrayList(); |
715 |
> |
delay(SHORT_DELAY_MS); |
716 |
> |
q.drainTo(l, 1); |
717 |
> |
assertEquals(1, l.size()); |
718 |
> |
q.drainTo(l, 1); |
719 |
> |
assertEquals(2, l.size()); |
720 |
> |
assertTrue(l.contains(one)); |
721 |
> |
assertTrue(l.contains(two)); |
722 |
> |
t1.join(); |
723 |
> |
t2.join(); |
724 |
|
} |
725 |
|
|
893 |
– |
|
726 |
|
} |