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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 John Vint |
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*/ |
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import java.io.BufferedInputStream; |
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import java.io.BufferedOutputStream; |
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import java.io.ByteArrayInputStream; |
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import java.io.ByteArrayOutputStream; |
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import java.io.ObjectInputStream; |
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import java.io.ObjectOutputStream; |
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import java.util.ArrayList; |
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import junit.framework.*; |
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import java.util.Arrays; |
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import java.util.ArrayList; |
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import java.util.Collection; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.NoSuchElementException; |
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import java.util.concurrent.*; |
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import java.util.Queue; |
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import java.util.concurrent.BlockingQueue; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.LinkedTransferQueue; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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|
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@SuppressWarnings({"unchecked", "rawtypes"}) |
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public class LinkedTransferQueueTest extends JSR166TestCase { |
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|
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public static class Generic extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new LinkedTransferQueue(); |
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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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} |
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|
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public static Test suite() { |
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return new TestSuite(LinkedTransferQueueTest.class); |
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} |
34 |
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|
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void checkEmpty(LinkedTransferQueue q) throws InterruptedException { |
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assertTrue(q.isEmpty()); |
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assertEquals(0, q.size()); |
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assertNull(q.peek()); |
39 |
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assertNull(q.poll()); |
40 |
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assertNull(q.poll(0, MILLISECONDS)); |
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assertEquals(q.toString(), "[]"); |
42 |
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assertTrue(Arrays.equals(q.toArray(), new Object[0])); |
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assertFalse(q.iterator().hasNext()); |
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try { |
45 |
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q.element(); |
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shouldThrow(); |
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} catch (NoSuchElementException success) { |
48 |
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} |
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try { |
50 |
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q.iterator().next(); |
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shouldThrow(); |
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} catch (NoSuchElementException success) { |
53 |
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} |
54 |
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try { |
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q.remove(); |
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shouldThrow(); |
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} catch (NoSuchElementException success) { |
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} |
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return newTestSuite(LinkedTransferQueueTest.class, |
39 |
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new Generic().testSuite()); |
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} |
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|
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/** |
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try { |
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new LinkedTransferQueue(null); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
79 |
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} |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* NullPointerException |
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*/ |
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public void testConstructor3() { |
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Collection<Integer> elements = Arrays.asList(new Integer[SIZE]); |
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try { |
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Integer[] ints = new Integer[SIZE]; |
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new LinkedTransferQueue(Arrays.asList(ints)); |
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new LinkedTransferQueue(elements); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
92 |
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} |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* throws NullPointerException |
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*/ |
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public void testConstructor4() { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE-1; ++i) |
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ints[i] = i; |
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Collection<Integer> elements = Arrays.asList(ints); |
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try { |
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Integer[] ints = new Integer[SIZE]; |
102 |
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for (int i = 0; i < SIZE - 1; ++i) { |
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ints[i] = i; |
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} |
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new LinkedTransferQueue(Arrays.asList(ints)); |
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new LinkedTransferQueue(elements); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
108 |
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} |
86 |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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} |
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|
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/** |
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* offer(null) throws NullPointerException |
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*/ |
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public void testOfferNull() { |
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try { |
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LinkedTransferQueue q = new LinkedTransferQueue(); |
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q.offer(null); |
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shouldThrow(); |
160 |
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} catch (NullPointerException success) { |
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} |
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} |
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|
164 |
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/** |
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* add(null) throws NullPointerException |
166 |
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*/ |
167 |
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public void testAddNull() { |
168 |
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try { |
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LinkedTransferQueue q = new LinkedTransferQueue(); |
170 |
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q.add(null); |
171 |
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shouldThrow(); |
172 |
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} catch (NullPointerException success) { |
173 |
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} |
174 |
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} |
175 |
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|
176 |
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/** |
177 |
– |
* addAll(null) throws NullPointerException |
178 |
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*/ |
179 |
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public void testAddAll1() { |
180 |
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try { |
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LinkedTransferQueue q = new LinkedTransferQueue(); |
182 |
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q.addAll(null); |
183 |
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shouldThrow(); |
184 |
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} catch (NullPointerException success) { |
185 |
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} |
186 |
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} |
187 |
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|
188 |
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/** |
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* addAll(this) throws IllegalArgumentException |
132 |
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*/ |
133 |
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public void testAddAllSelf() { |
135 |
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LinkedTransferQueue q = populatedQueue(SIZE); |
136 |
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q.addAll(q); |
137 |
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shouldThrow(); |
138 |
< |
} catch (IllegalArgumentException success) { |
197 |
< |
} |
198 |
< |
} |
199 |
< |
|
200 |
< |
/** |
201 |
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* addAll of a collection with null elements throws NullPointerException |
202 |
< |
*/ |
203 |
< |
public void testAddAll2() { |
204 |
< |
try { |
205 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
206 |
< |
Integer[] ints = new Integer[SIZE]; |
207 |
< |
q.addAll(Arrays.asList(ints)); |
208 |
< |
shouldThrow(); |
209 |
< |
} catch (NullPointerException success) { |
210 |
< |
} |
138 |
> |
} catch (IllegalArgumentException success) {} |
139 |
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} |
140 |
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|
141 |
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/** |
151 |
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} |
152 |
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q.addAll(Arrays.asList(ints)); |
153 |
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shouldThrow(); |
154 |
< |
} catch (NullPointerException success) { |
227 |
< |
} |
154 |
> |
} catch (NullPointerException success) {} |
155 |
|
} |
156 |
|
|
157 |
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/** |
172 |
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} |
173 |
|
|
174 |
|
/** |
248 |
– |
* put(null) throws NullPointerException |
249 |
– |
*/ |
250 |
– |
public void testPutNull() throws InterruptedException { |
251 |
– |
try { |
252 |
– |
LinkedTransferQueue q = new LinkedTransferQueue(); |
253 |
– |
q.put(null); |
254 |
– |
shouldThrow(); |
255 |
– |
} catch (NullPointerException success) {} |
256 |
– |
} |
257 |
– |
|
258 |
– |
/** |
175 |
|
* all elements successfully put are contained |
176 |
|
*/ |
177 |
|
public void testPut() { |
194 |
|
} |
195 |
|
|
196 |
|
/** |
197 |
< |
* take blocks interruptibly when empty |
282 |
< |
*/ |
283 |
< |
public void testTakeFromEmpty() throws InterruptedException { |
284 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
285 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
286 |
< |
void realRun() throws InterruptedException { |
287 |
< |
q.take(); |
288 |
< |
}}); |
289 |
< |
Thread.sleep(SHORT_DELAY_MS); |
290 |
< |
t.interrupt(); |
291 |
< |
t.join(); |
292 |
< |
} |
293 |
< |
|
294 |
< |
/** |
295 |
< |
* Take removes existing elements until empty, then blocks interruptibly |
197 |
> |
* take removes existing elements until empty, then blocks interruptibly |
198 |
|
*/ |
199 |
|
public void testBlockingTake() throws InterruptedException { |
200 |
< |
final LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
201 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
202 |
< |
void realRun() throws InterruptedException { |
200 |
> |
final BlockingQueue q = populatedQueue(SIZE); |
201 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
202 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
203 |
> |
public void realRun() throws InterruptedException { |
204 |
|
for (int i = 0; i < SIZE; ++i) { |
205 |
< |
threadAssertEquals(i, (int) q.take()); |
205 |
> |
assertEquals(i, q.take()); |
206 |
|
} |
207 |
< |
q.take(); |
207 |
> |
|
208 |
> |
Thread.currentThread().interrupt(); |
209 |
> |
try { |
210 |
> |
q.take(); |
211 |
> |
shouldThrow(); |
212 |
> |
} catch (InterruptedException success) {} |
213 |
> |
assertFalse(Thread.interrupted()); |
214 |
> |
|
215 |
> |
pleaseInterrupt.countDown(); |
216 |
> |
try { |
217 |
> |
q.take(); |
218 |
> |
shouldThrow(); |
219 |
> |
} catch (InterruptedException success) {} |
220 |
> |
assertFalse(Thread.interrupted()); |
221 |
|
}}); |
222 |
< |
Thread.sleep(SMALL_DELAY_MS); |
222 |
> |
|
223 |
> |
await(pleaseInterrupt); |
224 |
> |
assertThreadStaysAlive(t); |
225 |
|
t.interrupt(); |
226 |
< |
t.join(); |
309 |
< |
checkEmpty(q); |
226 |
> |
awaitTermination(t); |
227 |
|
} |
228 |
|
|
229 |
|
/** |
239 |
|
} |
240 |
|
|
241 |
|
/** |
242 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
242 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
243 |
|
*/ |
244 |
|
public void testTimedPoll0() throws InterruptedException { |
245 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
251 |
|
} |
252 |
|
|
253 |
|
/** |
254 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
254 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
255 |
|
*/ |
256 |
|
public void testTimedPoll() throws InterruptedException { |
257 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
258 |
|
for (int i = 0; i < SIZE; ++i) { |
259 |
< |
long t0 = System.nanoTime(); |
259 |
> |
long startTime = System.nanoTime(); |
260 |
|
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
261 |
< |
long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024); |
345 |
< |
assertTrue(millisElapsed < SMALL_DELAY_MS); |
261 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
262 |
|
} |
263 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
263 |
> |
long startTime = System.nanoTime(); |
264 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
265 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
266 |
|
checkEmpty(q); |
267 |
|
} |
268 |
|
|
271 |
|
* returning timeout status |
272 |
|
*/ |
273 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
274 |
< |
final LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
274 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
275 |
> |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
276 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
277 |
< |
void realRun() throws InterruptedException { |
277 |
> |
public void realRun() throws InterruptedException { |
278 |
|
for (int i = 0; i < SIZE; ++i) { |
279 |
|
long t0 = System.nanoTime(); |
280 |
< |
threadAssertEquals(i, (int) q.poll(LONG_DELAY_MS, |
281 |
< |
MILLISECONDS)); |
363 |
< |
long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024); |
364 |
< |
assertTrue(millisElapsed < SMALL_DELAY_MS); |
280 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
281 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
282 |
|
} |
283 |
+ |
long t0 = System.nanoTime(); |
284 |
+ |
aboutToWait.countDown(); |
285 |
|
try { |
286 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
287 |
< |
} catch (InterruptedException success) {} |
286 |
> |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
287 |
> |
shouldThrow(); |
288 |
> |
} catch (InterruptedException success) { |
289 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
290 |
> |
} |
291 |
|
}}); |
292 |
< |
Thread.sleep(SMALL_DELAY_MS); |
292 |
> |
|
293 |
> |
aboutToWait.await(); |
294 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
295 |
|
t.interrupt(); |
296 |
< |
t.join(); |
296 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
297 |
|
checkEmpty(q); |
298 |
|
} |
299 |
|
|
300 |
|
/** |
301 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
302 |
< |
* on interruption throws |
301 |
> |
* timed poll after thread interrupted throws InterruptedException |
302 |
> |
* instead of returning timeout status |
303 |
|
*/ |
304 |
< |
public void testTimedPollWithOffer() throws InterruptedException { |
305 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
306 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
307 |
< |
void realRun() throws InterruptedException { |
308 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
309 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
310 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
304 |
> |
public void testTimedPollAfterInterrupt() throws InterruptedException { |
305 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
306 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
307 |
> |
public void realRun() throws InterruptedException { |
308 |
> |
Thread.currentThread().interrupt(); |
309 |
> |
for (int i = 0; i < SIZE; ++i) { |
310 |
> |
long t0 = System.nanoTime(); |
311 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
312 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
313 |
> |
} |
314 |
> |
try { |
315 |
> |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
316 |
> |
shouldThrow(); |
317 |
> |
} catch (InterruptedException success) {} |
318 |
|
}}); |
319 |
< |
Thread.sleep(SMALL_DELAY_MS); |
320 |
< |
assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS)); |
321 |
< |
t.interrupt(); |
391 |
< |
t.join(); |
319 |
> |
|
320 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
321 |
> |
checkEmpty(q); |
322 |
|
} |
323 |
|
|
324 |
|
/** |
348 |
|
try { |
349 |
|
q.element(); |
350 |
|
shouldThrow(); |
351 |
< |
} catch (NoSuchElementException success) { |
422 |
< |
} |
351 |
> |
} catch (NoSuchElementException success) {} |
352 |
|
checkEmpty(q); |
353 |
|
} |
354 |
|
|
363 |
|
try { |
364 |
|
q.remove(); |
365 |
|
shouldThrow(); |
366 |
< |
} catch (NoSuchElementException success) { |
438 |
< |
} |
439 |
< |
checkEmpty(q); |
440 |
< |
} |
441 |
< |
|
442 |
< |
/** |
443 |
< |
* remove(x) removes x and returns true if present |
444 |
< |
*/ |
445 |
< |
public void testRemoveElement() throws InterruptedException { |
446 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
447 |
< |
for (int i = 1; i < SIZE; i += 2) { |
448 |
< |
assertTrue(q.remove(i)); |
449 |
< |
} |
450 |
< |
for (int i = 0; i < SIZE; i += 2) { |
451 |
< |
assertTrue(q.remove(i)); |
452 |
< |
assertFalse(q.remove(i + 1)); |
453 |
< |
} |
366 |
> |
} catch (NoSuchElementException success) {} |
367 |
|
checkEmpty(q); |
368 |
|
} |
369 |
|
|
377 |
|
assertTrue(q.remove(one)); |
378 |
|
assertTrue(q.remove(two)); |
379 |
|
assertTrue(q.add(three)); |
380 |
< |
assertTrue(q.take() == three); |
380 |
> |
assertSame(q.take(), three); |
381 |
|
} |
382 |
|
|
383 |
|
/** |
459 |
|
} |
460 |
|
|
461 |
|
/** |
462 |
< |
* toArray() contains all elements |
462 |
> |
* toArray() contains all elements in FIFO order |
463 |
|
*/ |
464 |
< |
public void testToArray() throws InterruptedException { |
464 |
> |
public void testToArray() { |
465 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
466 |
|
Object[] o = q.toArray(); |
467 |
|
for (int i = 0; i < o.length; i++) { |
468 |
< |
assertEquals(o[i], q.take()); |
468 |
> |
assertSame(o[i], q.poll()); |
469 |
|
} |
470 |
|
} |
471 |
|
|
472 |
|
/** |
473 |
< |
* toArray(a) contains all elements |
473 |
> |
* toArray(a) contains all elements in FIFO order |
474 |
|
*/ |
475 |
< |
public void testToArray2() throws InterruptedException { |
475 |
> |
public void testToArray2() { |
476 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
477 |
|
Integer[] ints = new Integer[SIZE]; |
478 |
< |
ints = q.toArray(ints); |
478 |
> |
Integer[] array = q.toArray(ints); |
479 |
> |
assertSame(ints, array); |
480 |
|
for (int i = 0; i < ints.length; i++) { |
481 |
< |
assertEquals(ints[i], q.take()); |
481 |
> |
assertSame(ints[i], q.poll()); |
482 |
|
} |
483 |
|
} |
484 |
|
|
485 |
|
/** |
486 |
< |
* toArray(null) throws NullPointerException |
573 |
< |
*/ |
574 |
< |
public void testToArray_BadArg() { |
575 |
< |
try { |
576 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
577 |
< |
Object o[] = q.toArray(null); |
578 |
< |
shouldThrow(); |
579 |
< |
} catch (NullPointerException success) { |
580 |
< |
} |
581 |
< |
} |
582 |
< |
|
583 |
< |
/** |
584 |
< |
* toArray(incompatible array type) throws CCE |
486 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
487 |
|
*/ |
488 |
|
public void testToArray1_BadArg() { |
489 |
+ |
LinkedTransferQueue q = populatedQueue(SIZE); |
490 |
|
try { |
491 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
589 |
< |
Object o[] = q.toArray(new String[10]); |
491 |
> |
q.toArray(new String[10]); |
492 |
|
shouldThrow(); |
493 |
< |
} catch (ArrayStoreException success) { |
592 |
< |
} |
493 |
> |
} catch (ArrayStoreException success) {} |
494 |
|
} |
495 |
|
|
496 |
|
/** |
520 |
|
it.remove(); |
521 |
|
|
522 |
|
it = q.iterator(); |
523 |
< |
assertEquals(it.next(), one); |
524 |
< |
assertEquals(it.next(), three); |
523 |
> |
assertSame(it.next(), one); |
524 |
> |
assertSame(it.next(), three); |
525 |
|
assertFalse(it.hasNext()); |
526 |
|
} |
527 |
|
|
565 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
566 |
|
String s = q.toString(); |
567 |
|
for (int i = 0; i < SIZE; ++i) { |
568 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
568 |
> |
assertTrue(s.contains(String.valueOf(i))); |
569 |
|
} |
570 |
|
} |
571 |
|
|
574 |
|
*/ |
575 |
|
public void testOfferInExecutor() { |
576 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
577 |
< |
q.add(one); |
677 |
< |
q.add(two); |
577 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
578 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
579 |
|
|
580 |
|
executor.execute(new CheckedRunnable() { |
581 |
< |
void realRun() { |
582 |
< |
threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, |
583 |
< |
MILLISECONDS)); |
581 |
> |
public void realRun() throws InterruptedException { |
582 |
> |
threadsStarted.await(); |
583 |
> |
assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS)); |
584 |
|
}}); |
585 |
|
|
586 |
|
executor.execute(new CheckedRunnable() { |
587 |
< |
void realRun() throws InterruptedException { |
588 |
< |
Thread.sleep(SMALL_DELAY_MS); |
589 |
< |
threadAssertEquals(one, q.take()); |
587 |
> |
public void realRun() throws InterruptedException { |
588 |
> |
threadsStarted.await(); |
589 |
> |
assertSame(one, q.take()); |
590 |
> |
checkEmpty(q); |
591 |
|
}}); |
592 |
|
|
593 |
|
joinPool(executor); |
598 |
|
*/ |
599 |
|
public void testPollInExecutor() { |
600 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
601 |
+ |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
602 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
603 |
|
|
604 |
|
executor.execute(new CheckedRunnable() { |
605 |
< |
void realRun() throws InterruptedException { |
606 |
< |
threadAssertNull(q.poll()); |
607 |
< |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, |
608 |
< |
MILLISECONDS)); |
609 |
< |
threadAssertTrue(q.isEmpty()); |
605 |
> |
public void realRun() throws InterruptedException { |
606 |
> |
assertNull(q.poll()); |
607 |
> |
threadsStarted.await(); |
608 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
609 |
> |
checkEmpty(q); |
610 |
|
}}); |
611 |
|
|
612 |
|
executor.execute(new CheckedRunnable() { |
613 |
< |
void realRun() throws InterruptedException { |
614 |
< |
Thread.sleep(SMALL_DELAY_MS); |
613 |
> |
public void realRun() throws InterruptedException { |
614 |
> |
threadsStarted.await(); |
615 |
|
q.put(one); |
616 |
|
}}); |
617 |
|
|
622 |
|
* A deserialized serialized queue has same elements in same order |
623 |
|
*/ |
624 |
|
public void testSerialization() throws Exception { |
625 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
626 |
< |
|
725 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
726 |
< |
ObjectOutputStream out |
727 |
< |
= new ObjectOutputStream(new BufferedOutputStream(bout)); |
728 |
< |
out.writeObject(q); |
729 |
< |
out.close(); |
625 |
> |
Queue x = populatedQueue(SIZE); |
626 |
> |
Queue y = serialClone(x); |
627 |
|
|
628 |
< |
ByteArrayInputStream bin |
629 |
< |
= new ByteArrayInputStream(bout.toByteArray()); |
630 |
< |
ObjectInputStream in |
631 |
< |
= new ObjectInputStream(new BufferedInputStream(bin)); |
632 |
< |
LinkedTransferQueue r = (LinkedTransferQueue) in.readObject(); |
633 |
< |
|
634 |
< |
assertEquals(q.size(), r.size()); |
738 |
< |
while (!q.isEmpty()) { |
739 |
< |
assertEquals(q.remove(), r.remove()); |
740 |
< |
} |
741 |
< |
} |
742 |
< |
|
743 |
< |
/** |
744 |
< |
* drainTo(null) throws NullPointerException |
745 |
< |
*/ |
746 |
< |
public void testDrainToNull() { |
747 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
748 |
< |
try { |
749 |
< |
q.drainTo(null); |
750 |
< |
shouldThrow(); |
751 |
< |
} catch (NullPointerException success) { |
752 |
< |
} |
753 |
< |
} |
754 |
< |
|
755 |
< |
/** |
756 |
< |
* drainTo(this) throws IllegalArgumentException |
757 |
< |
*/ |
758 |
< |
public void testDrainToSelf() { |
759 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
760 |
< |
try { |
761 |
< |
q.drainTo(q); |
762 |
< |
shouldThrow(); |
763 |
< |
} catch (IllegalArgumentException success) { |
628 |
> |
assertTrue(x != y); |
629 |
> |
assertEquals(x.size(), y.size()); |
630 |
> |
assertEquals(x.toString(), y.toString()); |
631 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
632 |
> |
while (!x.isEmpty()) { |
633 |
> |
assertFalse(y.isEmpty()); |
634 |
> |
assertEquals(x.remove(), y.remove()); |
635 |
|
} |
636 |
+ |
assertTrue(y.isEmpty()); |
637 |
|
} |
638 |
|
|
639 |
|
/** |
668 |
|
public void testDrainToWithActivePut() throws InterruptedException { |
669 |
|
final LinkedTransferQueue q = populatedQueue(SIZE); |
670 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
671 |
< |
void realRun() { |
671 |
> |
public void realRun() { |
672 |
|
q.put(SIZE + 1); |
673 |
|
}}); |
674 |
|
ArrayList l = new ArrayList(); |
677 |
|
for (int i = 0; i < SIZE; ++i) { |
678 |
|
assertEquals(l.get(i), i); |
679 |
|
} |
680 |
< |
t.join(); |
680 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
681 |
|
assertTrue(q.size() + l.size() >= SIZE); |
682 |
|
} |
683 |
|
|
684 |
|
/** |
685 |
< |
* drainTo(null, n) throws NullPointerException |
814 |
< |
*/ |
815 |
< |
public void testDrainToNullN() { |
816 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
817 |
< |
try { |
818 |
< |
q.drainTo(null, SIZE); |
819 |
< |
shouldThrow(); |
820 |
< |
} catch (NullPointerException success) { |
821 |
< |
} |
822 |
< |
} |
823 |
< |
|
824 |
< |
/** |
825 |
< |
* drainTo(this, n) throws IllegalArgumentException |
826 |
< |
*/ |
827 |
< |
public void testDrainToSelfN() { |
828 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
829 |
< |
try { |
830 |
< |
q.drainTo(q, SIZE); |
831 |
< |
shouldThrow(); |
832 |
< |
} catch (IllegalArgumentException success) { |
833 |
< |
} |
834 |
< |
} |
835 |
< |
|
836 |
< |
/** |
837 |
< |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
685 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
686 |
|
*/ |
687 |
|
public void testDrainToN() { |
688 |
|
LinkedTransferQueue q = new LinkedTransferQueue(); |
711 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
712 |
|
assertEquals(q.getWaitingConsumerCount(), 0); |
713 |
|
assertFalse(q.hasWaitingConsumer()); |
714 |
+ |
final CountDownLatch threadStarted = new CountDownLatch(1); |
715 |
|
|
716 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
717 |
< |
void realRun() throws InterruptedException { |
718 |
< |
Thread.sleep(SMALL_DELAY_MS); |
719 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
720 |
< |
threadAssertEquals(q.getWaitingConsumerCount(), 1); |
721 |
< |
threadAssertTrue(q.offer(new Object())); |
873 |
< |
threadAssertFalse(q.hasWaitingConsumer()); |
874 |
< |
threadAssertEquals(q.getWaitingConsumerCount(), 0); |
717 |
> |
public void realRun() throws InterruptedException { |
718 |
> |
threadStarted.countDown(); |
719 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
720 |
> |
assertEquals(q.getWaitingConsumerCount(), 0); |
721 |
> |
assertFalse(q.hasWaitingConsumer()); |
722 |
|
}}); |
723 |
|
|
724 |
< |
assertTrue(q.poll(LONG_DELAY_MS, MILLISECONDS) != null); |
724 |
> |
threadStarted.await(); |
725 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
726 |
> |
assertEquals(q.getWaitingConsumerCount(), 1); |
727 |
> |
assertTrue(q.hasWaitingConsumer()); |
728 |
> |
|
729 |
> |
assertTrue(q.offer(one)); |
730 |
|
assertEquals(q.getWaitingConsumerCount(), 0); |
731 |
|
assertFalse(q.hasWaitingConsumer()); |
732 |
< |
t.join(); |
732 |
> |
|
733 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
734 |
|
} |
735 |
|
|
736 |
|
/** |
751 |
|
public void testTransfer2() throws InterruptedException { |
752 |
|
final LinkedTransferQueue<Integer> q |
753 |
|
= new LinkedTransferQueue<Integer>(); |
754 |
+ |
final CountDownLatch threadStarted = new CountDownLatch(1); |
755 |
|
|
756 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
757 |
< |
void realRun() throws InterruptedException { |
758 |
< |
q.transfer(SIZE); |
759 |
< |
threadAssertTrue(q.isEmpty()); |
757 |
> |
public void realRun() throws InterruptedException { |
758 |
> |
threadStarted.countDown(); |
759 |
> |
q.transfer(five); |
760 |
> |
checkEmpty(q); |
761 |
|
}}); |
762 |
|
|
763 |
< |
Thread.sleep(SHORT_DELAY_MS); |
763 |
> |
threadStarted.await(); |
764 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
765 |
|
assertEquals(1, q.size()); |
766 |
< |
assertEquals(SIZE, (int) q.poll()); |
767 |
< |
assertTrue(q.isEmpty()); |
768 |
< |
t.join(); |
766 |
> |
assertSame(five, q.poll()); |
767 |
> |
checkEmpty(q); |
768 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
769 |
|
} |
770 |
|
|
771 |
|
/** |
776 |
|
= new LinkedTransferQueue<Integer>(); |
777 |
|
|
778 |
|
Thread first = newStartedThread(new CheckedRunnable() { |
779 |
< |
void realRun() throws InterruptedException { |
780 |
< |
Integer i = SIZE + 1; |
781 |
< |
q.transfer(i); |
782 |
< |
threadAssertTrue(!q.contains(i)); |
927 |
< |
threadAssertEquals(1, q.size()); |
779 |
> |
public void realRun() throws InterruptedException { |
780 |
> |
q.transfer(four); |
781 |
> |
assertTrue(!q.contains(four)); |
782 |
> |
assertEquals(1, q.size()); |
783 |
|
}}); |
784 |
|
|
785 |
|
Thread interruptedThread = newStartedThread( |
786 |
|
new CheckedInterruptedRunnable() { |
787 |
< |
void realRun() throws InterruptedException { |
788 |
< |
while (q.size() == 0) |
787 |
> |
public void realRun() throws InterruptedException { |
788 |
> |
while (q.isEmpty()) |
789 |
|
Thread.yield(); |
790 |
< |
q.transfer(SIZE); |
790 |
> |
q.transfer(five); |
791 |
|
}}); |
792 |
|
|
793 |
|
while (q.size() < 2) |
794 |
|
Thread.yield(); |
795 |
|
assertEquals(2, q.size()); |
796 |
< |
assertEquals(SIZE + 1, (int) q.poll()); |
796 |
> |
assertSame(four, q.poll()); |
797 |
|
first.join(); |
798 |
|
assertEquals(1, q.size()); |
799 |
|
interruptedThread.interrupt(); |
800 |
|
interruptedThread.join(); |
801 |
< |
assertEquals(0, q.size()); |
947 |
< |
assertTrue(q.isEmpty()); |
801 |
> |
checkEmpty(q); |
802 |
|
} |
803 |
|
|
804 |
|
/** |
809 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
810 |
|
|
811 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
812 |
< |
void realRun() throws InterruptedException { |
812 |
> |
public void realRun() throws InterruptedException { |
813 |
|
q.transfer(four); |
814 |
< |
threadAssertFalse(q.contains(four)); |
815 |
< |
threadAssertEquals(three, q.poll()); |
814 |
> |
assertFalse(q.contains(four)); |
815 |
> |
assertSame(three, q.poll()); |
816 |
|
}}); |
817 |
|
|
818 |
< |
Thread.sleep(SHORT_DELAY_MS); |
818 |
> |
while (q.isEmpty()) |
819 |
> |
Thread.yield(); |
820 |
> |
assertFalse(q.isEmpty()); |
821 |
> |
assertEquals(1, q.size()); |
822 |
|
assertTrue(q.offer(three)); |
823 |
< |
assertEquals(four, q.poll()); |
824 |
< |
t.join(); |
823 |
> |
assertSame(four, q.poll()); |
824 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
825 |
|
} |
826 |
|
|
827 |
|
/** |
833 |
|
= new LinkedTransferQueue<Integer>(); |
834 |
|
|
835 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
836 |
< |
void realRun() throws InterruptedException { |
837 |
< |
q.transfer(SIZE); |
836 |
> |
public void realRun() throws InterruptedException { |
837 |
> |
q.transfer(four); |
838 |
|
checkEmpty(q); |
839 |
|
}}); |
840 |
|
|
841 |
< |
Thread.sleep(SHORT_DELAY_MS); |
842 |
< |
assertEquals(SIZE, (int) q.take()); |
841 |
> |
while (q.isEmpty()) |
842 |
> |
Thread.yield(); |
843 |
> |
assertFalse(q.isEmpty()); |
844 |
> |
assertEquals(1, q.size()); |
845 |
> |
assertSame(four, q.take()); |
846 |
|
checkEmpty(q); |
847 |
< |
t.join(); |
847 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
848 |
|
} |
849 |
|
|
850 |
|
/** |
878 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
879 |
|
|
880 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
881 |
< |
void realRun() { |
881 |
> |
public void realRun() { |
882 |
|
while (! q.hasWaitingConsumer()) |
883 |
|
Thread.yield(); |
884 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
885 |
< |
threadAssertTrue(q.isEmpty()); |
886 |
< |
threadAssertTrue(q.size() == 0); |
1027 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
884 |
> |
assertTrue(q.hasWaitingConsumer()); |
885 |
> |
checkEmpty(q); |
886 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
887 |
|
}}); |
888 |
|
|
889 |
< |
assertTrue(q.poll(MEDIUM_DELAY_MS, MILLISECONDS) == hotPotato); |
889 |
> |
assertSame(hotPotato, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
890 |
|
checkEmpty(q); |
891 |
< |
t.join(); |
891 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
892 |
|
} |
893 |
|
|
894 |
|
/** |
900 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
901 |
|
|
902 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
903 |
< |
void realRun() { |
903 |
> |
public void realRun() { |
904 |
|
while (! q.hasWaitingConsumer()) |
905 |
|
Thread.yield(); |
906 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
907 |
< |
threadAssertTrue(q.isEmpty()); |
908 |
< |
threadAssertTrue(q.size() == 0); |
1050 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
906 |
> |
assertTrue(q.hasWaitingConsumer()); |
907 |
> |
checkEmpty(q); |
908 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
909 |
|
}}); |
910 |
|
|
911 |
< |
assertTrue(q.take() == hotPotato); |
911 |
> |
assertSame(q.take(), hotPotato); |
912 |
|
checkEmpty(q); |
913 |
< |
t.join(); |
913 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
914 |
|
} |
915 |
|
|
916 |
|
/** |
917 |
< |
* tryTransfer waits the amount given if interrupted, and |
1060 |
< |
* throws interrupted exception |
917 |
> |
* tryTransfer blocks interruptibly if no takers |
918 |
|
*/ |
919 |
|
public void testTryTransfer5() throws InterruptedException { |
920 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
921 |
+ |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
922 |
+ |
assertTrue(q.isEmpty()); |
923 |
|
|
924 |
< |
Thread toInterrupt = newStartedThread(new CheckedInterruptedRunnable() { |
925 |
< |
void realRun() throws InterruptedException { |
926 |
< |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
924 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
925 |
> |
public void realRun() throws InterruptedException { |
926 |
> |
Thread.currentThread().interrupt(); |
927 |
> |
try { |
928 |
> |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
929 |
> |
shouldThrow(); |
930 |
> |
} catch (InterruptedException success) {} |
931 |
> |
assertFalse(Thread.interrupted()); |
932 |
> |
|
933 |
> |
pleaseInterrupt.countDown(); |
934 |
> |
try { |
935 |
> |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
936 |
> |
shouldThrow(); |
937 |
> |
} catch (InterruptedException success) {} |
938 |
> |
assertFalse(Thread.interrupted()); |
939 |
|
}}); |
940 |
|
|
941 |
< |
Thread.sleep(SMALL_DELAY_MS); |
942 |
< |
toInterrupt.interrupt(); |
943 |
< |
toInterrupt.join(); |
941 |
> |
await(pleaseInterrupt); |
942 |
> |
assertThreadStaysAlive(t); |
943 |
> |
t.interrupt(); |
944 |
> |
awaitTermination(t); |
945 |
> |
checkEmpty(q); |
946 |
|
} |
947 |
|
|
948 |
|
/** |
949 |
< |
* tryTransfer gives up after the timeout and return false |
949 |
> |
* tryTransfer gives up after the timeout and returns false |
950 |
|
*/ |
951 |
|
public void testTryTransfer6() throws InterruptedException { |
952 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
953 |
|
|
954 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
955 |
< |
void realRun() throws InterruptedException { |
956 |
< |
threadAssertFalse |
957 |
< |
(q.tryTransfer(new Object(), |
958 |
< |
SHORT_DELAY_MS, MILLISECONDS)); |
955 |
> |
public void realRun() throws InterruptedException { |
956 |
> |
long t0 = System.nanoTime(); |
957 |
> |
assertFalse(q.tryTransfer(new Object(), |
958 |
> |
timeoutMillis(), MILLISECONDS)); |
959 |
> |
assertTrue(millisElapsedSince(t0) >= timeoutMillis()); |
960 |
> |
checkEmpty(q); |
961 |
|
}}); |
962 |
|
|
963 |
< |
Thread.sleep(SMALL_DELAY_MS); |
963 |
> |
awaitTermination(t); |
964 |
|
checkEmpty(q); |
1090 |
– |
t.join(); |
965 |
|
} |
966 |
|
|
967 |
|
/** |
973 |
|
assertTrue(q.offer(four)); |
974 |
|
|
975 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
976 |
< |
void realRun() throws InterruptedException { |
977 |
< |
threadAssertTrue(q.tryTransfer(five, |
978 |
< |
MEDIUM_DELAY_MS, MILLISECONDS)); |
1105 |
< |
threadAssertTrue(q.isEmpty()); |
976 |
> |
public void realRun() throws InterruptedException { |
977 |
> |
assertTrue(q.tryTransfer(five, MEDIUM_DELAY_MS, MILLISECONDS)); |
978 |
> |
checkEmpty(q); |
979 |
|
}}); |
980 |
|
|
981 |
< |
Thread.sleep(SHORT_DELAY_MS); |
981 |
> |
while (q.size() != 2) |
982 |
> |
Thread.yield(); |
983 |
|
assertEquals(2, q.size()); |
984 |
< |
assertEquals(four, q.poll()); |
985 |
< |
assertEquals(five, q.poll()); |
984 |
> |
assertSame(four, q.poll()); |
985 |
> |
assertSame(five, q.poll()); |
986 |
|
checkEmpty(q); |
987 |
< |
t.join(); |
987 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
988 |
|
} |
989 |
|
|
990 |
|
/** |
991 |
< |
* tryTransfer attempts to enqueue into the q and fails returning |
992 |
< |
* false not enqueueing and the successive poll is null |
991 |
> |
* tryTransfer attempts to enqueue into the queue and fails |
992 |
> |
* returning false not enqueueing and the successive poll is null |
993 |
|
*/ |
994 |
|
public void testTryTransfer8() throws InterruptedException { |
995 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
996 |
|
assertTrue(q.offer(four)); |
997 |
|
assertEquals(1, q.size()); |
998 |
< |
assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS)); |
998 |
> |
long t0 = System.nanoTime(); |
999 |
> |
assertFalse(q.tryTransfer(five, timeoutMillis(), MILLISECONDS)); |
1000 |
> |
assertTrue(millisElapsedSince(t0) >= timeoutMillis()); |
1001 |
|
assertEquals(1, q.size()); |
1002 |
< |
assertEquals(four, q.poll()); |
1002 |
> |
assertSame(four, q.poll()); |
1003 |
|
assertNull(q.poll()); |
1004 |
|
checkEmpty(q); |
1005 |
|
} |
1006 |
|
|
1007 |
|
private LinkedTransferQueue<Integer> populatedQueue(int n) { |
1008 |
|
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
1009 |
< |
assertTrue(q.isEmpty()); |
1009 |
> |
checkEmpty(q); |
1010 |
|
for (int i = 0; i < n; i++) { |
1011 |
|
assertEquals(i, q.size()); |
1012 |
|
assertTrue(q.offer(i)); |