117 |
|
* |
118 |
|
* <ol> |
119 |
|
* |
120 |
< |
* <li>All assertions in code running in generated threads must use |
121 |
< |
* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link |
122 |
< |
* #threadAssertEquals}, or {@link #threadAssertNull}, (not |
123 |
< |
* {@code fail}, {@code assertTrue}, etc.) It is OK (but not |
124 |
< |
* particularly recommended) for other code to use these forms too. |
125 |
< |
* Only the most typically used JUnit assertion methods are defined |
126 |
< |
* this way, but enough to live with. |
120 |
> |
* <li>All code not running in the main test thread (manually spawned threads |
121 |
> |
* or the common fork join pool) must be checked for failure (and completion!). |
122 |
> |
* Mechanisms that can be used to ensure this are: |
123 |
> |
* <ol> |
124 |
> |
* <li>Signalling via a synchronizer like AtomicInteger or CountDownLatch |
125 |
> |
* that the task completed normally, which is checked before returning from |
126 |
> |
* the test method in the main thread. |
127 |
> |
* <li>Using the forms {@link #threadFail}, {@link #threadAssertTrue}, |
128 |
> |
* or {@link #threadAssertNull}, (not {@code fail}, {@code assertTrue}, etc.) |
129 |
> |
* Only the most typically used JUnit assertion methods are defined |
130 |
> |
* this way, but enough to live with. |
131 |
> |
* <li>Recording failure explicitly using {@link #threadUnexpectedException} |
132 |
> |
* or {@link #threadRecordFailure}. |
133 |
> |
* <li>Using a wrapper like CheckedRunnable that uses one the mechanisms above. |
134 |
> |
* </ol> |
135 |
|
* |
136 |
|
* <li>If you override {@link #setUp} or {@link #tearDown}, make sure |
137 |
|
* to invoke {@code super.setUp} and {@code super.tearDown} within |
288 |
|
// Avoid spurious reports with enormous runsPerTest. |
289 |
|
// A single test case run should never take more than 1 second. |
290 |
|
// But let's cap it at the high end too ... |
291 |
< |
final int timeoutMinutes = |
292 |
< |
Math.min(15, Math.max(runsPerTest / 60, 1)); |
291 |
> |
final int timeoutMinutesMin = Math.max(runsPerTest / 60, 1) |
292 |
> |
* Math.max((int) delayFactor, 1); |
293 |
> |
final int timeoutMinutes = Math.min(15, timeoutMinutesMin); |
294 |
|
for (TestCase lastTestCase = currentTestCase;;) { |
295 |
|
try { MINUTES.sleep(timeoutMinutes); } |
296 |
|
catch (InterruptedException unexpected) { break; } |
461 |
|
public static boolean atLeastJava9() { return JAVA_CLASS_VERSION >= 53.0; } |
462 |
|
public static boolean atLeastJava10() { return JAVA_CLASS_VERSION >= 54.0; } |
463 |
|
public static boolean atLeastJava11() { return JAVA_CLASS_VERSION >= 55.0; } |
464 |
+ |
public static boolean atLeastJava12() { return JAVA_CLASS_VERSION >= 56.0; } |
465 |
+ |
public static boolean atLeastJava13() { return JAVA_CLASS_VERSION >= 57.0; } |
466 |
+ |
public static boolean atLeastJava14() { return JAVA_CLASS_VERSION >= 58.0; } |
467 |
+ |
public static boolean atLeastJava15() { return JAVA_CLASS_VERSION >= 59.0; } |
468 |
+ |
public static boolean atLeastJava16() { return JAVA_CLASS_VERSION >= 60.0; } |
469 |
+ |
public static boolean atLeastJava17() { return JAVA_CLASS_VERSION >= 61.0; } |
470 |
|
|
471 |
|
/** |
472 |
|
* Collects all JSR166 unit tests as one suite. |
518 |
|
ExecutorsTest.suite(), |
519 |
|
ExecutorCompletionServiceTest.suite(), |
520 |
|
FutureTaskTest.suite(), |
521 |
+ |
HashtableTest.suite(), |
522 |
|
LinkedBlockingDequeTest.suite(), |
523 |
|
LinkedBlockingQueueTest.suite(), |
524 |
|
LinkedListTest.suite(), |
558 |
|
"HashMapTest", |
559 |
|
"LinkedBlockingDeque8Test", |
560 |
|
"LinkedBlockingQueue8Test", |
561 |
+ |
"LinkedHashMapTest", |
562 |
|
"LongAccumulatorTest", |
563 |
|
"LongAdderTest", |
564 |
|
"SplittableRandomTest", |
657 |
|
public static long MEDIUM_DELAY_MS; |
658 |
|
public static long LONG_DELAY_MS; |
659 |
|
|
660 |
+ |
/** |
661 |
+ |
* A delay significantly longer than LONG_DELAY_MS. |
662 |
+ |
* Use this in a thread that is waited for via awaitTermination(Thread). |
663 |
+ |
*/ |
664 |
+ |
public static long LONGER_DELAY_MS; |
665 |
+ |
|
666 |
|
private static final long RANDOM_TIMEOUT; |
667 |
|
private static final long RANDOM_EXPIRED_TIMEOUT; |
668 |
|
private static final TimeUnit RANDOM_TIMEUNIT; |
691 |
|
static TimeUnit randomTimeUnit() { return RANDOM_TIMEUNIT; } |
692 |
|
|
693 |
|
/** |
694 |
+ |
* Returns a random boolean; a "coin flip". |
695 |
+ |
*/ |
696 |
+ |
static boolean randomBoolean() { |
697 |
+ |
return ThreadLocalRandom.current().nextBoolean(); |
698 |
+ |
} |
699 |
+ |
|
700 |
+ |
/** |
701 |
+ |
* Returns a random element from given choices. |
702 |
+ |
*/ |
703 |
+ |
<T> T chooseRandomly(T... choices) { |
704 |
+ |
return choices[ThreadLocalRandom.current().nextInt(choices.length)]; |
705 |
+ |
} |
706 |
+ |
|
707 |
+ |
/** |
708 |
|
* Returns the shortest timed delay. This can be scaled up for |
709 |
|
* slow machines using the jsr166.delay.factor system property, |
710 |
|
* or via jtreg's -timeoutFactor: flag. |
722 |
|
SMALL_DELAY_MS = SHORT_DELAY_MS * 5; |
723 |
|
MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10; |
724 |
|
LONG_DELAY_MS = SHORT_DELAY_MS * 200; |
725 |
+ |
LONGER_DELAY_MS = 2 * LONG_DELAY_MS; |
726 |
|
} |
727 |
|
|
728 |
|
private static final long TIMEOUT_DELAY_MS |
761 |
|
*/ |
762 |
|
public void threadRecordFailure(Throwable t) { |
763 |
|
System.err.println(t); |
764 |
< |
dumpTestThreads(); |
765 |
< |
threadFailure.compareAndSet(null, t); |
764 |
> |
if (threadFailure.compareAndSet(null, t)) |
765 |
> |
dumpTestThreads(); |
766 |
|
} |
767 |
|
|
768 |
|
public void setUp() { |
1329 |
|
/** |
1330 |
|
* Spin-waits up to the specified number of milliseconds for the given |
1331 |
|
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING. |
1332 |
+ |
* @param waitingForGodot if non-null, an additional condition to satisfy |
1333 |
|
*/ |
1334 |
< |
void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) { |
1335 |
< |
long startTime = 0L; |
1336 |
< |
for (;;) { |
1337 |
< |
Thread.State s = thread.getState(); |
1338 |
< |
if (s == Thread.State.BLOCKED || |
1339 |
< |
s == Thread.State.WAITING || |
1340 |
< |
s == Thread.State.TIMED_WAITING) |
1341 |
< |
return; |
1342 |
< |
else if (s == Thread.State.TERMINATED) |
1334 |
> |
void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis, |
1335 |
> |
Callable<Boolean> waitingForGodot) { |
1336 |
> |
for (long startTime = 0L;;) { |
1337 |
> |
switch (thread.getState()) { |
1338 |
> |
default: break; |
1339 |
> |
case BLOCKED: case WAITING: case TIMED_WAITING: |
1340 |
> |
try { |
1341 |
> |
if (waitingForGodot == null || waitingForGodot.call()) |
1342 |
> |
return; |
1343 |
> |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
1344 |
> |
break; |
1345 |
> |
case TERMINATED: |
1346 |
|
fail("Unexpected thread termination"); |
1347 |
< |
else if (startTime == 0L) |
1347 |
> |
} |
1348 |
> |
|
1349 |
> |
if (startTime == 0L) |
1350 |
|
startTime = System.nanoTime(); |
1351 |
|
else if (millisElapsedSince(startTime) > timeoutMillis) { |
1352 |
< |
threadAssertTrue(thread.isAlive()); |
1353 |
< |
fail("timed out waiting for thread to enter wait state"); |
1352 |
> |
assertTrue(thread.isAlive()); |
1353 |
> |
if (waitingForGodot == null |
1354 |
> |
|| thread.getState() == Thread.State.RUNNABLE) |
1355 |
> |
fail("timed out waiting for thread to enter wait state"); |
1356 |
> |
else |
1357 |
> |
fail("timed out waiting for condition, thread state=" |
1358 |
> |
+ thread.getState()); |
1359 |
|
} |
1360 |
|
Thread.yield(); |
1361 |
|
} |
1363 |
|
|
1364 |
|
/** |
1365 |
|
* Spin-waits up to the specified number of milliseconds for the given |
1366 |
< |
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING, |
1318 |
< |
* and additionally satisfy the given condition. |
1366 |
> |
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING. |
1367 |
|
*/ |
1368 |
< |
void waitForThreadToEnterWaitState( |
1369 |
< |
Thread thread, long timeoutMillis, Callable<Boolean> waitingForGodot) { |
1322 |
< |
long startTime = 0L; |
1323 |
< |
for (;;) { |
1324 |
< |
Thread.State s = thread.getState(); |
1325 |
< |
if (s == Thread.State.BLOCKED || |
1326 |
< |
s == Thread.State.WAITING || |
1327 |
< |
s == Thread.State.TIMED_WAITING) { |
1328 |
< |
try { |
1329 |
< |
if (waitingForGodot.call()) |
1330 |
< |
return; |
1331 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
1332 |
< |
} |
1333 |
< |
else if (s == Thread.State.TERMINATED) |
1334 |
< |
fail("Unexpected thread termination"); |
1335 |
< |
else if (startTime == 0L) |
1336 |
< |
startTime = System.nanoTime(); |
1337 |
< |
else if (millisElapsedSince(startTime) > timeoutMillis) { |
1338 |
< |
threadAssertTrue(thread.isAlive()); |
1339 |
< |
fail("timed out waiting for thread to enter wait state"); |
1340 |
< |
} |
1341 |
< |
Thread.yield(); |
1342 |
< |
} |
1368 |
> |
void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) { |
1369 |
> |
waitForThreadToEnterWaitState(thread, timeoutMillis, null); |
1370 |
|
} |
1371 |
|
|
1372 |
|
/** |
1374 |
|
* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING. |
1375 |
|
*/ |
1376 |
|
void waitForThreadToEnterWaitState(Thread thread) { |
1377 |
< |
waitForThreadToEnterWaitState(thread, LONG_DELAY_MS); |
1377 |
> |
waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, null); |
1378 |
|
} |
1379 |
|
|
1380 |
|
/** |
1382 |
|
* enter a wait state: BLOCKED, WAITING, or TIMED_WAITING, |
1383 |
|
* and additionally satisfy the given condition. |
1384 |
|
*/ |
1385 |
< |
void waitForThreadToEnterWaitState( |
1386 |
< |
Thread thread, Callable<Boolean> waitingForGodot) { |
1385 |
> |
void waitForThreadToEnterWaitState(Thread thread, |
1386 |
> |
Callable<Boolean> waitingForGodot) { |
1387 |
|
waitForThreadToEnterWaitState(thread, LONG_DELAY_MS, waitingForGodot); |
1388 |
|
} |
1389 |
|
|
1390 |
|
/** |
1391 |
+ |
* Spin-waits up to LONG_DELAY_MS milliseconds for the current thread to |
1392 |
+ |
* be interrupted. Clears the interrupt status before returning. |
1393 |
+ |
*/ |
1394 |
+ |
void awaitInterrupted() { |
1395 |
+ |
for (long startTime = 0L; !Thread.interrupted(); ) { |
1396 |
+ |
if (startTime == 0L) |
1397 |
+ |
startTime = System.nanoTime(); |
1398 |
+ |
else if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
1399 |
+ |
fail("timed out waiting for thread interrupt"); |
1400 |
+ |
Thread.yield(); |
1401 |
+ |
} |
1402 |
+ |
} |
1403 |
+ |
|
1404 |
+ |
/** |
1405 |
|
* Returns the number of milliseconds since time given by |
1406 |
|
* startNanoTime, which must have been previously returned from a |
1407 |
|
* call to {@link System#nanoTime()}. |
1410 |
|
return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime); |
1411 |
|
} |
1412 |
|
|
1372 |
– |
// void assertTerminatesPromptly(long timeoutMillis, Runnable r) { |
1373 |
– |
// long startTime = System.nanoTime(); |
1374 |
– |
// try { |
1375 |
– |
// r.run(); |
1376 |
– |
// } catch (Throwable fail) { threadUnexpectedException(fail); } |
1377 |
– |
// if (millisElapsedSince(startTime) > timeoutMillis/2) |
1378 |
– |
// throw new AssertionError("did not return promptly"); |
1379 |
– |
// } |
1380 |
– |
|
1381 |
– |
// void assertTerminatesPromptly(Runnable r) { |
1382 |
– |
// assertTerminatesPromptly(LONG_DELAY_MS/2, r); |
1383 |
– |
// } |
1384 |
– |
|
1413 |
|
/** |
1414 |
|
* Checks that timed f.get() returns the expected value, and does not |
1415 |
|
* wait for the timeout to elapse before returning. |
1444 |
|
* to terminate (using {@link Thread#join(long)}), else interrupts |
1445 |
|
* the thread (in the hope that it may terminate later) and fails. |
1446 |
|
*/ |
1447 |
< |
void awaitTermination(Thread t, long timeoutMillis) { |
1447 |
> |
void awaitTermination(Thread thread, long timeoutMillis) { |
1448 |
|
try { |
1449 |
< |
t.join(timeoutMillis); |
1449 |
> |
thread.join(timeoutMillis); |
1450 |
|
} catch (InterruptedException fail) { |
1451 |
|
threadUnexpectedException(fail); |
1452 |
< |
} finally { |
1453 |
< |
if (t.getState() != Thread.State.TERMINATED) { |
1454 |
< |
t.interrupt(); |
1455 |
< |
threadFail("timed out waiting for thread to terminate"); |
1452 |
> |
} |
1453 |
> |
if (thread.getState() != Thread.State.TERMINATED) { |
1454 |
> |
String detail = String.format( |
1455 |
> |
"timed out waiting for thread to terminate, thread=%s, state=%s" , |
1456 |
> |
thread, thread.getState()); |
1457 |
> |
try { |
1458 |
> |
threadFail(detail); |
1459 |
> |
} finally { |
1460 |
> |
// Interrupt thread __after__ having reported its stack trace |
1461 |
> |
thread.interrupt(); |
1462 |
|
} |
1463 |
|
} |
1464 |
|
} |
1498 |
|
public final void run() { |
1499 |
|
try { |
1500 |
|
realRun(); |
1467 |
– |
threadShouldThrow(exceptionClass.getSimpleName()); |
1501 |
|
} catch (Throwable t) { |
1502 |
|
if (! exceptionClass.isInstance(t)) |
1503 |
|
threadUnexpectedException(t); |
1504 |
+ |
return; |
1505 |
|
} |
1506 |
+ |
threadShouldThrow(exceptionClass.getSimpleName()); |
1507 |
|
} |
1508 |
|
} |
1509 |
|
|
1513 |
|
public final void run() { |
1514 |
|
try { |
1515 |
|
realRun(); |
1481 |
– |
threadShouldThrow("InterruptedException"); |
1516 |
|
} catch (InterruptedException success) { |
1517 |
|
threadAssertFalse(Thread.interrupted()); |
1518 |
+ |
return; |
1519 |
|
} catch (Throwable fail) { |
1520 |
|
threadUnexpectedException(fail); |
1521 |
|
} |
1522 |
+ |
threadShouldThrow("InterruptedException"); |
1523 |
|
} |
1524 |
|
} |
1525 |
|
|
1531 |
|
return realCall(); |
1532 |
|
} catch (Throwable fail) { |
1533 |
|
threadUnexpectedException(fail); |
1498 |
– |
return null; |
1499 |
– |
} |
1500 |
– |
} |
1501 |
– |
} |
1502 |
– |
|
1503 |
– |
public abstract class CheckedInterruptedCallable<T> |
1504 |
– |
implements Callable<T> { |
1505 |
– |
protected abstract T realCall() throws Throwable; |
1506 |
– |
|
1507 |
– |
public final T call() { |
1508 |
– |
try { |
1509 |
– |
T result = realCall(); |
1510 |
– |
threadShouldThrow("InterruptedException"); |
1511 |
– |
return result; |
1512 |
– |
} catch (InterruptedException success) { |
1513 |
– |
threadAssertFalse(Thread.interrupted()); |
1514 |
– |
} catch (Throwable fail) { |
1515 |
– |
threadUnexpectedException(fail); |
1534 |
|
} |
1535 |
< |
return null; |
1535 |
> |
throw new AssertionError("unreached"); |
1536 |
|
} |
1537 |
|
} |
1538 |
|
|
1589 |
|
} |
1590 |
|
|
1591 |
|
public void await(CountDownLatch latch, long timeoutMillis) { |
1592 |
+ |
boolean timedOut = false; |
1593 |
|
try { |
1594 |
< |
if (!latch.await(timeoutMillis, MILLISECONDS)) |
1576 |
< |
fail("timed out waiting for CountDownLatch for " |
1577 |
< |
+ (timeoutMillis/1000) + " sec"); |
1594 |
> |
timedOut = !latch.await(timeoutMillis, MILLISECONDS); |
1595 |
|
} catch (Throwable fail) { |
1596 |
|
threadUnexpectedException(fail); |
1597 |
|
} |
1598 |
+ |
if (timedOut) |
1599 |
+ |
fail("timed out waiting for CountDownLatch for " |
1600 |
+ |
+ (timeoutMillis/1000) + " sec"); |
1601 |
|
} |
1602 |
|
|
1603 |
|
public void await(CountDownLatch latch) { |
1605 |
|
} |
1606 |
|
|
1607 |
|
public void await(Semaphore semaphore) { |
1608 |
+ |
boolean timedOut = false; |
1609 |
|
try { |
1610 |
< |
if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)) |
1590 |
< |
fail("timed out waiting for Semaphore for " |
1591 |
< |
+ (LONG_DELAY_MS/1000) + " sec"); |
1610 |
> |
timedOut = !semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS); |
1611 |
|
} catch (Throwable fail) { |
1612 |
|
threadUnexpectedException(fail); |
1613 |
|
} |
1614 |
+ |
if (timedOut) |
1615 |
+ |
fail("timed out waiting for Semaphore for " |
1616 |
+ |
+ (LONG_DELAY_MS/1000) + " sec"); |
1617 |
|
} |
1618 |
|
|
1619 |
|
public void await(CyclicBarrier barrier) { |
1647 |
|
public String call() { throw new NullPointerException(); } |
1648 |
|
} |
1649 |
|
|
1628 |
– |
public class SmallPossiblyInterruptedRunnable extends CheckedRunnable { |
1629 |
– |
protected void realRun() { |
1630 |
– |
try { |
1631 |
– |
delay(SMALL_DELAY_MS); |
1632 |
– |
} catch (InterruptedException ok) {} |
1633 |
– |
} |
1634 |
– |
} |
1635 |
– |
|
1650 |
|
public Runnable possiblyInterruptedRunnable(final long timeoutMillis) { |
1651 |
|
return new CheckedRunnable() { |
1652 |
|
protected void realRun() { |
1702 |
|
return realCompute(); |
1703 |
|
} catch (Throwable fail) { |
1704 |
|
threadUnexpectedException(fail); |
1691 |
– |
return null; |
1705 |
|
} |
1706 |
+ |
throw new AssertionError("unreached"); |
1707 |
|
} |
1708 |
|
} |
1709 |
|
|
1780 |
|
} |
1781 |
|
} |
1782 |
|
|
1783 |
< |
void assertImmutable(final Object o) { |
1783 |
> |
void assertImmutable(Object o) { |
1784 |
|
if (o instanceof Collection) { |
1785 |
|
assertThrows( |
1786 |
|
UnsupportedOperationException.class, |
1787 |
< |
new Runnable() { public void run() { |
1774 |
< |
((Collection) o).add(null);}}); |
1787 |
> |
() -> ((Collection) o).add(null)); |
1788 |
|
} |
1789 |
|
} |
1790 |
|
|
1791 |
|
@SuppressWarnings("unchecked") |
1792 |
|
<T> T serialClone(T o) { |
1793 |
+ |
T clone = null; |
1794 |
|
try { |
1795 |
|
ObjectInputStream ois = new ObjectInputStream |
1796 |
|
(new ByteArrayInputStream(serialBytes(o))); |
1797 |
< |
T clone = (T) ois.readObject(); |
1784 |
< |
if (o == clone) assertImmutable(o); |
1785 |
< |
assertSame(o.getClass(), clone.getClass()); |
1786 |
< |
return clone; |
1797 |
> |
clone = (T) ois.readObject(); |
1798 |
|
} catch (Throwable fail) { |
1799 |
|
threadUnexpectedException(fail); |
1789 |
– |
return null; |
1800 |
|
} |
1801 |
+ |
if (o == clone) assertImmutable(o); |
1802 |
+ |
else assertSame(o.getClass(), clone.getClass()); |
1803 |
+ |
return clone; |
1804 |
|
} |
1805 |
|
|
1806 |
|
/** |
1819 |
|
(new ByteArrayInputStream(bos.toByteArray())); |
1820 |
|
T clone = (T) ois.readObject(); |
1821 |
|
if (o == clone) assertImmutable(o); |
1822 |
< |
assertSame(o.getClass(), clone.getClass()); |
1822 |
> |
else assertSame(o.getClass(), clone.getClass()); |
1823 |
|
return clone; |
1824 |
|
} |
1825 |
|
|
1844 |
|
} |
1845 |
|
|
1846 |
|
public void assertThrows(Class<? extends Throwable> expectedExceptionClass, |
1847 |
< |
Runnable... throwingActions) { |
1848 |
< |
for (Runnable throwingAction : throwingActions) { |
1847 |
> |
Action... throwingActions) { |
1848 |
> |
for (Action throwingAction : throwingActions) { |
1849 |
|
boolean threw = false; |
1850 |
|
try { throwingAction.run(); } |
1851 |
|
catch (Throwable t) { |