6 |
|
* Pat Fisher, Mike Judd. |
7 |
|
*/ |
8 |
|
|
9 |
– |
import junit.framework.*; |
10 |
– |
import java.util.concurrent.atomic.AtomicBoolean; |
11 |
– |
import java.util.concurrent.locks.*; |
12 |
– |
import java.util.concurrent.*; |
9 |
|
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
< |
import java.io.*; |
11 |
< |
import java.util.*; |
10 |
> |
|
11 |
> |
import java.util.Arrays; |
12 |
> |
import java.util.Collection; |
13 |
> |
import java.util.HashSet; |
14 |
> |
import java.util.concurrent.CountDownLatch; |
15 |
> |
import java.util.concurrent.atomic.AtomicBoolean; |
16 |
> |
import java.util.concurrent.locks.Condition; |
17 |
> |
import java.util.concurrent.locks.Lock; |
18 |
> |
import java.util.concurrent.locks.ReentrantReadWriteLock; |
19 |
> |
|
20 |
> |
import junit.framework.AssertionFailedError; |
21 |
> |
import junit.framework.Test; |
22 |
> |
import junit.framework.TestSuite; |
23 |
|
|
24 |
|
public class ReentrantReadWriteLockTest extends JSR166TestCase { |
25 |
|
public static void main(String[] args) { |
26 |
< |
junit.textui.TestRunner.run(suite()); |
26 |
> |
main(suite(), args); |
27 |
|
} |
28 |
|
public static Test suite() { |
29 |
|
return new TestSuite(ReentrantReadWriteLockTest.class); |
91 |
|
Thread.yield(); |
92 |
|
} |
93 |
|
assertTrue(t.isAlive()); |
94 |
< |
assertTrue(lock.getOwner() != t); |
94 |
> |
assertNotSame(t, lock.getOwner()); |
95 |
|
} |
96 |
|
|
97 |
|
/** |
152 |
|
lock.writeLock().unlock(); |
153 |
|
} |
154 |
|
|
155 |
< |
enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil }; |
155 |
> |
enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil } |
156 |
|
|
157 |
|
/** |
158 |
< |
* Awaits condition using the specified AwaitMethod. |
158 |
> |
* Awaits condition "indefinitely" using the specified AwaitMethod. |
159 |
|
*/ |
160 |
|
void await(Condition c, AwaitMethod awaitMethod) |
161 |
|
throws InterruptedException { |
162 |
+ |
long timeoutMillis = 2 * LONG_DELAY_MS; |
163 |
|
switch (awaitMethod) { |
164 |
|
case await: |
165 |
|
c.await(); |
166 |
|
break; |
167 |
|
case awaitTimed: |
168 |
< |
assertTrue(c.await(2 * LONG_DELAY_MS, MILLISECONDS)); |
168 |
> |
assertTrue(c.await(timeoutMillis, MILLISECONDS)); |
169 |
|
break; |
170 |
|
case awaitNanos: |
171 |
< |
long nanosRemaining = c.awaitNanos(MILLISECONDS.toNanos(2 * LONG_DELAY_MS)); |
172 |
< |
assertTrue(nanosRemaining > 0); |
171 |
> |
long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis); |
172 |
> |
long nanosRemaining = c.awaitNanos(timeoutNanos); |
173 |
> |
assertTrue(nanosRemaining > timeoutNanos / 2); |
174 |
> |
assertTrue(nanosRemaining <= timeoutNanos); |
175 |
|
break; |
176 |
|
case awaitUntil: |
177 |
< |
java.util.Date d = new java.util.Date(); |
168 |
< |
assertTrue(c.awaitUntil(new java.util.Date(d.getTime() + 2 * LONG_DELAY_MS))); |
177 |
> |
assertTrue(c.awaitUntil(delayedDate(timeoutMillis))); |
178 |
|
break; |
179 |
+ |
default: |
180 |
+ |
throw new AssertionError(); |
181 |
|
} |
182 |
|
} |
183 |
|
|
231 |
|
public void testGetWriteHoldCount() { testGetWriteHoldCount(false); } |
232 |
|
public void testGetWriteHoldCount_fair() { testGetWriteHoldCount(true); } |
233 |
|
public void testGetWriteHoldCount(boolean fair) { |
234 |
< |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
234 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
235 |
|
for (int i = 1; i <= SIZE; i++) { |
236 |
|
lock.writeLock().lock(); |
237 |
|
assertEquals(i,lock.getWriteHoldCount()); |
238 |
|
} |
239 |
|
for (int i = SIZE; i > 0; i--) { |
240 |
|
lock.writeLock().unlock(); |
241 |
< |
assertEquals(i-1,lock.getWriteHoldCount()); |
241 |
> |
assertEquals(i - 1,lock.getWriteHoldCount()); |
242 |
|
} |
243 |
|
} |
244 |
|
|
248 |
|
public void testGetHoldCount() { testGetHoldCount(false); } |
249 |
|
public void testGetHoldCount_fair() { testGetHoldCount(true); } |
250 |
|
public void testGetHoldCount(boolean fair) { |
251 |
< |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
251 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
252 |
|
for (int i = 1; i <= SIZE; i++) { |
253 |
|
lock.writeLock().lock(); |
254 |
|
assertEquals(i,lock.writeLock().getHoldCount()); |
255 |
|
} |
256 |
|
for (int i = SIZE; i > 0; i--) { |
257 |
|
lock.writeLock().unlock(); |
258 |
< |
assertEquals(i-1,lock.writeLock().getHoldCount()); |
258 |
> |
assertEquals(i - 1,lock.writeLock().getHoldCount()); |
259 |
|
} |
260 |
|
} |
261 |
|
|
265 |
|
public void testGetReadHoldCount() { testGetReadHoldCount(false); } |
266 |
|
public void testGetReadHoldCount_fair() { testGetReadHoldCount(true); } |
267 |
|
public void testGetReadHoldCount(boolean fair) { |
268 |
< |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
268 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
269 |
|
for (int i = 1; i <= SIZE; i++) { |
270 |
|
lock.readLock().lock(); |
271 |
|
assertEquals(i,lock.getReadHoldCount()); |
272 |
|
} |
273 |
|
for (int i = SIZE; i > 0; i--) { |
274 |
|
lock.readLock().unlock(); |
275 |
< |
assertEquals(i-1,lock.getReadHoldCount()); |
275 |
> |
assertEquals(i - 1,lock.getReadHoldCount()); |
276 |
|
} |
277 |
|
} |
278 |
|
|
282 |
|
public void testWriteUnlock_IMSE() { testWriteUnlock_IMSE(false); } |
283 |
|
public void testWriteUnlock_IMSE_fair() { testWriteUnlock_IMSE(true); } |
284 |
|
public void testWriteUnlock_IMSE(boolean fair) { |
285 |
< |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
285 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
286 |
|
try { |
287 |
|
lock.writeLock().unlock(); |
288 |
|
shouldThrow(); |
295 |
|
public void testReadUnlock_IMSE() { testReadUnlock_IMSE(false); } |
296 |
|
public void testReadUnlock_IMSE_fair() { testReadUnlock_IMSE(true); } |
297 |
|
public void testReadUnlock_IMSE(boolean fair) { |
298 |
< |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
298 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
299 |
|
try { |
300 |
|
lock.readLock().unlock(); |
301 |
|
shouldThrow(); |
518 |
|
|
519 |
|
/** |
520 |
|
* A thread that tries to acquire a fair read lock (non-reentrantly) |
521 |
< |
* will block if there is a waiting writer thread. |
521 |
> |
* will block if there is a waiting writer thread |
522 |
|
*/ |
523 |
|
public void testReaderWriterReaderFairFifo() { |
524 |
|
final PublicReentrantReadWriteLock lock = |
595 |
|
} |
596 |
|
|
597 |
|
/** |
598 |
< |
* Read trylock succeeds (barging) even in the presence of waiting readers and/or writers. |
598 |
> |
* Read trylock succeeds (barging) even in the presence of waiting |
599 |
> |
* readers and/or writers |
600 |
|
*/ |
601 |
|
public void testReadTryLockBarging() { testReadTryLockBarging(false); } |
602 |
|
public void testReadTryLockBarging_fair() { testReadTryLockBarging(true); } |
788 |
|
public void testWriteTryLock_Timeout(boolean fair) { |
789 |
|
final PublicReentrantReadWriteLock lock = |
790 |
|
new PublicReentrantReadWriteLock(fair); |
791 |
+ |
final long timeoutMillis = timeoutMillis(); |
792 |
|
lock.writeLock().lock(); |
793 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
794 |
|
public void realRun() throws InterruptedException { |
795 |
|
long startTime = System.nanoTime(); |
783 |
– |
long timeoutMillis = 10; |
796 |
|
assertFalse(lock.writeLock().tryLock(timeoutMillis, MILLISECONDS)); |
797 |
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
798 |
|
}}); |
812 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
813 |
|
public void realRun() throws InterruptedException { |
814 |
|
long startTime = System.nanoTime(); |
815 |
< |
long timeoutMillis = 10; |
815 |
> |
long timeoutMillis = timeoutMillis(); |
816 |
|
assertFalse(lock.readLock().tryLock(timeoutMillis, MILLISECONDS)); |
817 |
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
818 |
|
}}); |
832 |
|
new PublicReentrantReadWriteLock(fair); |
833 |
|
try { |
834 |
|
lock.writeLock().lockInterruptibly(); |
835 |
< |
} catch (InterruptedException ie) { |
824 |
< |
threadUnexpectedException(ie); |
825 |
< |
} |
835 |
> |
} catch (InterruptedException fail) { threadUnexpectedException(fail); } |
836 |
|
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
837 |
|
public void realRun() throws InterruptedException { |
838 |
|
lock.writeLock().lockInterruptibly(); |
857 |
|
lock.readLock().lockInterruptibly(); |
858 |
|
lock.readLock().unlock(); |
859 |
|
lock.writeLock().lockInterruptibly(); |
860 |
< |
} catch (InterruptedException ie) { |
851 |
< |
threadUnexpectedException(ie); |
852 |
< |
} |
860 |
> |
} catch (InterruptedException fail) { threadUnexpectedException(fail); } |
861 |
|
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
862 |
|
public void realRun() throws InterruptedException { |
863 |
|
lock.readLock().lockInterruptibly(); |
883 |
|
await(c, awaitMethod); |
884 |
|
shouldThrow(); |
885 |
|
} catch (IllegalMonitorStateException success) { |
886 |
< |
} catch (InterruptedException e) { threadUnexpectedException(e); } |
886 |
> |
} catch (InterruptedException fail) { |
887 |
> |
threadUnexpectedException(fail); |
888 |
> |
} |
889 |
|
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
890 |
|
} |
891 |
|
} |
924 |
|
public void testAwaitNanos_Timeout() { testAwaitNanos_Timeout(false); } |
925 |
|
public void testAwaitNanos_Timeout_fair() { testAwaitNanos_Timeout(true); } |
926 |
|
public void testAwaitNanos_Timeout(boolean fair) { |
927 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
928 |
+ |
final Condition c = lock.writeLock().newCondition(); |
929 |
+ |
final long timeoutMillis = timeoutMillis(); |
930 |
+ |
lock.writeLock().lock(); |
931 |
+ |
final long startTime = System.nanoTime(); |
932 |
+ |
final long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis); |
933 |
|
try { |
918 |
– |
final ReentrantReadWriteLock lock = |
919 |
– |
new ReentrantReadWriteLock(fair); |
920 |
– |
final Condition c = lock.writeLock().newCondition(); |
921 |
– |
lock.writeLock().lock(); |
922 |
– |
long startTime = System.nanoTime(); |
923 |
– |
long timeoutMillis = 10; |
924 |
– |
long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis); |
934 |
|
long nanosRemaining = c.awaitNanos(timeoutNanos); |
935 |
|
assertTrue(nanosRemaining <= 0); |
936 |
< |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
937 |
< |
lock.writeLock().unlock(); |
938 |
< |
} catch (InterruptedException e) { |
930 |
< |
threadUnexpectedException(e); |
931 |
< |
} |
936 |
> |
} catch (InterruptedException fail) { threadUnexpectedException(fail); } |
937 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
938 |
> |
lock.writeLock().unlock(); |
939 |
|
} |
940 |
|
|
941 |
|
/** |
944 |
|
public void testAwait_Timeout() { testAwait_Timeout(false); } |
945 |
|
public void testAwait_Timeout_fair() { testAwait_Timeout(true); } |
946 |
|
public void testAwait_Timeout(boolean fair) { |
947 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
948 |
+ |
final Condition c = lock.writeLock().newCondition(); |
949 |
+ |
final long timeoutMillis = timeoutMillis(); |
950 |
+ |
lock.writeLock().lock(); |
951 |
+ |
final long startTime = System.nanoTime(); |
952 |
|
try { |
941 |
– |
final ReentrantReadWriteLock lock = |
942 |
– |
new ReentrantReadWriteLock(fair); |
943 |
– |
final Condition c = lock.writeLock().newCondition(); |
944 |
– |
lock.writeLock().lock(); |
945 |
– |
long startTime = System.nanoTime(); |
946 |
– |
long timeoutMillis = 10; |
953 |
|
assertFalse(c.await(timeoutMillis, MILLISECONDS)); |
954 |
< |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
955 |
< |
lock.writeLock().unlock(); |
956 |
< |
} catch (InterruptedException e) { |
951 |
< |
threadUnexpectedException(e); |
952 |
< |
} |
954 |
> |
} catch (InterruptedException fail) { threadUnexpectedException(fail); } |
955 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
956 |
> |
lock.writeLock().unlock(); |
957 |
|
} |
958 |
|
|
959 |
|
/** |
962 |
|
public void testAwaitUntil_Timeout() { testAwaitUntil_Timeout(false); } |
963 |
|
public void testAwaitUntil_Timeout_fair() { testAwaitUntil_Timeout(true); } |
964 |
|
public void testAwaitUntil_Timeout(boolean fair) { |
965 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
966 |
+ |
final Condition c = lock.writeLock().newCondition(); |
967 |
+ |
lock.writeLock().lock(); |
968 |
+ |
// We shouldn't assume that nanoTime and currentTimeMillis |
969 |
+ |
// use the same time source, so don't use nanoTime here. |
970 |
+ |
final java.util.Date delayedDate = delayedDate(timeoutMillis()); |
971 |
|
try { |
972 |
< |
final ReentrantReadWriteLock lock = |
973 |
< |
new ReentrantReadWriteLock(fair); |
974 |
< |
final Condition c = lock.writeLock().newCondition(); |
975 |
< |
lock.writeLock().lock(); |
966 |
< |
long startTime = System.nanoTime(); |
967 |
< |
long timeoutMillis = 10; |
968 |
< |
java.util.Date d = new java.util.Date(); |
969 |
< |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + timeoutMillis))); |
970 |
< |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
971 |
< |
lock.writeLock().unlock(); |
972 |
< |
} catch (InterruptedException e) { |
973 |
< |
threadUnexpectedException(e); |
974 |
< |
} |
972 |
> |
assertFalse(c.awaitUntil(delayedDate)); |
973 |
> |
} catch (InterruptedException fail) { threadUnexpectedException(fail); } |
974 |
> |
assertTrue(new java.util.Date().getTime() >= delayedDate.getTime()); |
975 |
> |
lock.writeLock().unlock(); |
976 |
|
} |
977 |
|
|
978 |
|
/** |
1004 |
|
} |
1005 |
|
|
1006 |
|
/** |
1007 |
< |
* awaitUninterruptibly doesn't abort on interrupt |
1007 |
> |
* awaitUninterruptibly is uninterruptible |
1008 |
|
*/ |
1009 |
|
public void testAwaitUninterruptibly() { testAwaitUninterruptibly(false); } |
1010 |
|
public void testAwaitUninterruptibly_fair() { testAwaitUninterruptibly(true); } |
1011 |
|
public void testAwaitUninterruptibly(boolean fair) { |
1012 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1013 |
< |
final Condition c = lock.writeLock().newCondition(); |
1014 |
< |
final CountDownLatch locked = new CountDownLatch(1); |
1015 |
< |
Thread t = newStartedThread(new CheckedRunnable() { |
1012 |
> |
final Lock lock = new ReentrantReadWriteLock(fair).writeLock(); |
1013 |
> |
final Condition condition = lock.newCondition(); |
1014 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(2); |
1015 |
> |
|
1016 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
1017 |
|
public void realRun() { |
1018 |
< |
lock.writeLock().lock(); |
1019 |
< |
locked.countDown(); |
1020 |
< |
c.awaitUninterruptibly(); |
1018 |
> |
// Interrupt before awaitUninterruptibly |
1019 |
> |
lock.lock(); |
1020 |
> |
pleaseInterrupt.countDown(); |
1021 |
> |
Thread.currentThread().interrupt(); |
1022 |
> |
condition.awaitUninterruptibly(); |
1023 |
|
assertTrue(Thread.interrupted()); |
1024 |
< |
lock.writeLock().unlock(); |
1024 |
> |
lock.unlock(); |
1025 |
|
}}); |
1026 |
|
|
1027 |
< |
await(locked); |
1028 |
< |
lock.writeLock().lock(); |
1029 |
< |
lock.writeLock().unlock(); |
1030 |
< |
t.interrupt(); |
1031 |
< |
long timeoutMillis = 10; |
1032 |
< |
assertThreadStaysAlive(t, timeoutMillis); |
1033 |
< |
lock.writeLock().lock(); |
1034 |
< |
c.signal(); |
1035 |
< |
lock.writeLock().unlock(); |
1036 |
< |
awaitTermination(t); |
1027 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
1028 |
> |
public void realRun() { |
1029 |
> |
// Interrupt during awaitUninterruptibly |
1030 |
> |
lock.lock(); |
1031 |
> |
pleaseInterrupt.countDown(); |
1032 |
> |
condition.awaitUninterruptibly(); |
1033 |
> |
assertTrue(Thread.interrupted()); |
1034 |
> |
lock.unlock(); |
1035 |
> |
}}); |
1036 |
> |
|
1037 |
> |
await(pleaseInterrupt); |
1038 |
> |
t2.interrupt(); |
1039 |
> |
lock.lock(); |
1040 |
> |
lock.unlock(); |
1041 |
> |
assertThreadBlocks(t1, Thread.State.WAITING); |
1042 |
> |
assertThreadBlocks(t2, Thread.State.WAITING); |
1043 |
> |
|
1044 |
> |
lock.lock(); |
1045 |
> |
condition.signalAll(); |
1046 |
> |
lock.unlock(); |
1047 |
> |
|
1048 |
> |
awaitTermination(t1); |
1049 |
> |
awaitTermination(t2); |
1050 |
|
} |
1051 |
|
|
1052 |
|
/** |
1128 |
|
} |
1129 |
|
|
1130 |
|
/** |
1131 |
< |
* signal wakes up waiting threads in FIFO order. |
1131 |
> |
* signal wakes up waiting threads in FIFO order |
1132 |
|
*/ |
1133 |
|
public void testSignalWakesFifo() { testSignalWakesFifo(false); } |
1134 |
|
public void testSignalWakesFifo_fair() { testSignalWakesFifo(true); } |
1227 |
|
public void testSerialization() { testSerialization(false); } |
1228 |
|
public void testSerialization_fair() { testSerialization(true); } |
1229 |
|
public void testSerialization(boolean fair) { |
1230 |
< |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1230 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1231 |
|
lock.writeLock().lock(); |
1232 |
|
lock.readLock().lock(); |
1233 |
|
|
1289 |
|
} |
1290 |
|
|
1291 |
|
/** |
1292 |
< |
* hasQueuedThread reports whether a thread is queued. |
1292 |
> |
* hasQueuedThread reports whether a thread is queued |
1293 |
|
*/ |
1294 |
|
public void testHasQueuedThread() { testHasQueuedThread(false); } |
1295 |
|
public void testHasQueuedThread_fair() { testHasQueuedThread(true); } |
1629 |
|
public void testToString() { testToString(false); } |
1630 |
|
public void testToString_fair() { testToString(true); } |
1631 |
|
public void testToString(boolean fair) { |
1632 |
< |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1633 |
< |
String us = lock.toString(); |
1634 |
< |
assertTrue(us.indexOf("Write locks = 0") >= 0); |
1635 |
< |
assertTrue(us.indexOf("Read locks = 0") >= 0); |
1636 |
< |
lock.writeLock().lock(); |
1637 |
< |
String ws = lock.toString(); |
1638 |
< |
assertTrue(ws.indexOf("Write locks = 1") >= 0); |
1639 |
< |
assertTrue(ws.indexOf("Read locks = 0") >= 0); |
1632 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1633 |
> |
assertTrue(lock.toString().contains("Write locks = 0")); |
1634 |
> |
assertTrue(lock.toString().contains("Read locks = 0")); |
1635 |
> |
lock.writeLock().lock(); |
1636 |
> |
assertTrue(lock.toString().contains("Write locks = 1")); |
1637 |
> |
assertTrue(lock.toString().contains("Read locks = 0")); |
1638 |
> |
lock.writeLock().lock(); |
1639 |
> |
assertTrue(lock.toString().contains("Write locks = 2")); |
1640 |
> |
assertTrue(lock.toString().contains("Read locks = 0")); |
1641 |
> |
lock.writeLock().unlock(); |
1642 |
|
lock.writeLock().unlock(); |
1643 |
|
lock.readLock().lock(); |
1644 |
+ |
assertTrue(lock.toString().contains("Write locks = 0")); |
1645 |
+ |
assertTrue(lock.toString().contains("Read locks = 1")); |
1646 |
|
lock.readLock().lock(); |
1647 |
< |
String rs = lock.toString(); |
1648 |
< |
assertTrue(rs.indexOf("Write locks = 0") >= 0); |
1628 |
< |
assertTrue(rs.indexOf("Read locks = 2") >= 0); |
1647 |
> |
assertTrue(lock.toString().contains("Write locks = 0")); |
1648 |
> |
assertTrue(lock.toString().contains("Read locks = 2")); |
1649 |
|
} |
1650 |
|
|
1651 |
|
/** |
1654 |
|
public void testReadLockToString() { testReadLockToString(false); } |
1655 |
|
public void testReadLockToString_fair() { testReadLockToString(true); } |
1656 |
|
public void testReadLockToString(boolean fair) { |
1657 |
< |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1658 |
< |
String us = lock.readLock().toString(); |
1639 |
< |
assertTrue(us.indexOf("Read locks = 0") >= 0); |
1657 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1658 |
> |
assertTrue(lock.readLock().toString().contains("Read locks = 0")); |
1659 |
|
lock.readLock().lock(); |
1660 |
+ |
assertTrue(lock.readLock().toString().contains("Read locks = 1")); |
1661 |
|
lock.readLock().lock(); |
1662 |
< |
String rs = lock.readLock().toString(); |
1663 |
< |
assertTrue(rs.indexOf("Read locks = 2") >= 0); |
1662 |
> |
assertTrue(lock.readLock().toString().contains("Read locks = 2")); |
1663 |
> |
lock.readLock().unlock(); |
1664 |
> |
assertTrue(lock.readLock().toString().contains("Read locks = 1")); |
1665 |
> |
lock.readLock().unlock(); |
1666 |
> |
assertTrue(lock.readLock().toString().contains("Read locks = 0")); |
1667 |
|
} |
1668 |
|
|
1669 |
|
/** |
1672 |
|
public void testWriteLockToString() { testWriteLockToString(false); } |
1673 |
|
public void testWriteLockToString_fair() { testWriteLockToString(true); } |
1674 |
|
public void testWriteLockToString(boolean fair) { |
1675 |
< |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1676 |
< |
String us = lock.writeLock().toString(); |
1654 |
< |
assertTrue(us.indexOf("Unlocked") >= 0); |
1675 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1676 |
> |
assertTrue(lock.writeLock().toString().contains("Unlocked")); |
1677 |
|
lock.writeLock().lock(); |
1678 |
< |
String ls = lock.writeLock().toString(); |
1679 |
< |
assertTrue(ls.indexOf("Locked") >= 0); |
1678 |
> |
assertTrue(lock.writeLock().toString().contains("Locked by")); |
1679 |
> |
lock.writeLock().unlock(); |
1680 |
> |
assertTrue(lock.writeLock().toString().contains("Unlocked")); |
1681 |
|
} |
1682 |
|
|
1683 |
|
} |