| 7 |
|
*/ |
| 8 |
|
|
| 9 |
|
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| 10 |
+ |
import static java.util.concurrent.TimeUnit.MINUTES; |
| 11 |
|
import static java.util.concurrent.TimeUnit.NANOSECONDS; |
| 12 |
|
|
| 13 |
|
import java.io.ByteArrayInputStream; |
| 16 |
|
import java.io.ObjectOutputStream; |
| 17 |
|
import java.lang.management.ManagementFactory; |
| 18 |
|
import java.lang.management.ThreadInfo; |
| 19 |
+ |
import java.lang.management.ThreadMXBean; |
| 20 |
|
import java.lang.reflect.Constructor; |
| 21 |
|
import java.lang.reflect.Method; |
| 22 |
|
import java.lang.reflect.Modifier; |
| 23 |
+ |
import java.nio.file.Files; |
| 24 |
+ |
import java.nio.file.Paths; |
| 25 |
|
import java.security.CodeSource; |
| 26 |
|
import java.security.Permission; |
| 27 |
|
import java.security.PermissionCollection; |
| 54 |
|
import java.util.concurrent.ThreadPoolExecutor; |
| 55 |
|
import java.util.concurrent.TimeoutException; |
| 56 |
|
import java.util.concurrent.atomic.AtomicReference; |
| 57 |
+ |
import java.util.regex.Matcher; |
| 58 |
|
import java.util.regex.Pattern; |
| 59 |
|
|
| 60 |
|
import junit.framework.AssertionFailedError; |
| 112 |
|
* methods as there are exceptions the method can throw. Sometimes |
| 113 |
|
* there are multiple tests per JSR166 method when the different |
| 114 |
|
* "normal" behaviors differ significantly. And sometimes testcases |
| 115 |
< |
* cover multiple methods when they cannot be tested in |
| 111 |
< |
* isolation. |
| 115 |
> |
* cover multiple methods when they cannot be tested in isolation. |
| 116 |
|
* |
| 117 |
|
* <li>The documentation style for testcases is to provide as javadoc |
| 118 |
|
* a simple sentence or two describing the property that the testcase |
| 190 |
|
return (regex == null) ? null : Pattern.compile(regex); |
| 191 |
|
} |
| 192 |
|
|
| 193 |
+ |
// Instrumentation to debug very rare, but very annoying hung test runs. |
| 194 |
+ |
static volatile TestCase currentTestCase; |
| 195 |
+ |
// static volatile int currentRun = 0; |
| 196 |
+ |
static { |
| 197 |
+ |
Runnable checkForWedgedTest = new Runnable() { public void run() { |
| 198 |
+ |
// Avoid spurious reports with enormous runsPerTest. |
| 199 |
+ |
// A single test case run should never take more than 1 second. |
| 200 |
+ |
// But let's cap it at the high end too ... |
| 201 |
+ |
final int timeoutMinutes = |
| 202 |
+ |
Math.min(15, Math.max(runsPerTest / 60, 1)); |
| 203 |
+ |
for (TestCase lastTestCase = currentTestCase;;) { |
| 204 |
+ |
try { MINUTES.sleep(timeoutMinutes); } |
| 205 |
+ |
catch (InterruptedException unexpected) { break; } |
| 206 |
+ |
if (lastTestCase == currentTestCase) { |
| 207 |
+ |
System.err.printf( |
| 208 |
+ |
"Looks like we're stuck running test: %s%n", |
| 209 |
+ |
lastTestCase); |
| 210 |
+ |
// System.err.printf( |
| 211 |
+ |
// "Looks like we're stuck running test: %s (%d/%d)%n", |
| 212 |
+ |
// lastTestCase, currentRun, runsPerTest); |
| 213 |
+ |
// System.err.println("availableProcessors=" + |
| 214 |
+ |
// Runtime.getRuntime().availableProcessors()); |
| 215 |
+ |
// System.err.printf("cpu model = %s%n", cpuModel()); |
| 216 |
+ |
dumpTestThreads(); |
| 217 |
+ |
// one stack dump is probably enough; more would be spam |
| 218 |
+ |
break; |
| 219 |
+ |
} |
| 220 |
+ |
lastTestCase = currentTestCase; |
| 221 |
+ |
}}}; |
| 222 |
+ |
Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest"); |
| 223 |
+ |
thread.setDaemon(true); |
| 224 |
+ |
thread.start(); |
| 225 |
+ |
} |
| 226 |
+ |
|
| 227 |
+ |
// public static String cpuModel() { |
| 228 |
+ |
// try { |
| 229 |
+ |
// Matcher matcher = Pattern.compile("model name\\s*: (.*)") |
| 230 |
+ |
// .matcher(new String( |
| 231 |
+ |
// Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8")); |
| 232 |
+ |
// matcher.find(); |
| 233 |
+ |
// return matcher.group(1); |
| 234 |
+ |
// } catch (Exception ex) { return null; } |
| 235 |
+ |
// } |
| 236 |
+ |
|
| 237 |
|
public void runBare() throws Throwable { |
| 238 |
+ |
currentTestCase = this; |
| 239 |
|
if (methodFilter == null |
| 240 |
|
|| methodFilter.matcher(toString()).find()) |
| 241 |
|
super.runBare(); |
| 243 |
|
|
| 244 |
|
protected void runTest() throws Throwable { |
| 245 |
|
for (int i = 0; i < runsPerTest; i++) { |
| 246 |
+ |
// currentRun = i; |
| 247 |
|
if (profileTests) |
| 248 |
|
runTestProfiled(); |
| 249 |
|
else |
| 272 |
|
main(suite(), args); |
| 273 |
|
} |
| 274 |
|
|
| 275 |
+ |
static class PithyResultPrinter extends junit.textui.ResultPrinter { |
| 276 |
+ |
PithyResultPrinter(java.io.PrintStream writer) { super(writer); } |
| 277 |
+ |
long runTime; |
| 278 |
+ |
public void startTest(Test test) {} |
| 279 |
+ |
protected void printHeader(long runTime) { |
| 280 |
+ |
this.runTime = runTime; // defer printing for later |
| 281 |
+ |
} |
| 282 |
+ |
protected void printFooter(TestResult result) { |
| 283 |
+ |
if (result.wasSuccessful()) { |
| 284 |
+ |
getWriter().println("OK (" + result.runCount() + " tests)" |
| 285 |
+ |
+ " Time: " + elapsedTimeAsString(runTime)); |
| 286 |
+ |
} else { |
| 287 |
+ |
getWriter().println("Time: " + elapsedTimeAsString(runTime)); |
| 288 |
+ |
super.printFooter(result); |
| 289 |
+ |
} |
| 290 |
+ |
} |
| 291 |
+ |
} |
| 292 |
+ |
|
| 293 |
+ |
/** |
| 294 |
+ |
* Returns a TestRunner that doesn't bother with unnecessary |
| 295 |
+ |
* fluff, like printing a "." for each test case. |
| 296 |
+ |
*/ |
| 297 |
+ |
static junit.textui.TestRunner newPithyTestRunner() { |
| 298 |
+ |
junit.textui.TestRunner runner = new junit.textui.TestRunner(); |
| 299 |
+ |
runner.setPrinter(new PithyResultPrinter(System.out)); |
| 300 |
+ |
return runner; |
| 301 |
+ |
} |
| 302 |
+ |
|
| 303 |
|
/** |
| 304 |
|
* Runs all unit tests in the given test suite. |
| 305 |
|
* Actual behavior influenced by jsr166.* system properties. |
| 311 |
|
System.setSecurityManager(new SecurityManager()); |
| 312 |
|
} |
| 313 |
|
for (int i = 0; i < suiteRuns; i++) { |
| 314 |
< |
TestResult result = junit.textui.TestRunner.run(suite); |
| 314 |
> |
TestResult result = newPithyTestRunner().doRun(suite); |
| 315 |
|
if (!result.wasSuccessful()) |
| 316 |
|
System.exit(1); |
| 317 |
|
System.gc(); |
| 538 |
|
} else { |
| 539 |
|
return new TestSuite(); |
| 540 |
|
} |
| 463 |
– |
|
| 541 |
|
} |
| 542 |
|
|
| 543 |
|
// Delays for timing-dependent tests, in milliseconds. |
| 595 |
|
* the same test have no effect. |
| 596 |
|
*/ |
| 597 |
|
public void threadRecordFailure(Throwable t) { |
| 598 |
+ |
System.err.println(t); |
| 599 |
+ |
dumpTestThreads(); |
| 600 |
|
threadFailure.compareAndSet(null, t); |
| 601 |
|
} |
| 602 |
|
|
| 607 |
|
void tearDownFail(String format, Object... args) { |
| 608 |
|
String msg = toString() + ": " + String.format(format, args); |
| 609 |
|
System.err.println(msg); |
| 610 |
< |
printAllStackTraces(); |
| 610 |
> |
dumpTestThreads(); |
| 611 |
|
throw new AssertionFailedError(msg); |
| 612 |
|
} |
| 613 |
|
|
| 644 |
|
} |
| 645 |
|
|
| 646 |
|
/** |
| 647 |
< |
* Finds missing try { ... } finally { joinPool(e); } |
| 647 |
> |
* Finds missing PoolCleaners |
| 648 |
|
*/ |
| 649 |
|
void checkForkJoinPoolThreadLeaks() throws InterruptedException { |
| 650 |
|
Thread[] survivors = new Thread[7]; |
| 676 |
|
fail(reason); |
| 677 |
|
} catch (AssertionFailedError t) { |
| 678 |
|
threadRecordFailure(t); |
| 679 |
< |
fail(reason); |
| 679 |
> |
throw t; |
| 680 |
|
} |
| 681 |
|
} |
| 682 |
|
|
| 803 |
|
/** |
| 804 |
|
* Delays, via Thread.sleep, for the given millisecond delay, but |
| 805 |
|
* if the sleep is shorter than specified, may re-sleep or yield |
| 806 |
< |
* until time elapses. |
| 806 |
> |
* until time elapses. Ensures that the given time, as measured |
| 807 |
> |
* by System.nanoTime(), has elapsed. |
| 808 |
|
*/ |
| 809 |
|
static void delay(long millis) throws InterruptedException { |
| 810 |
< |
long startTime = System.nanoTime(); |
| 811 |
< |
long ns = millis * 1000 * 1000; |
| 812 |
< |
for (;;) { |
| 810 |
> |
long nanos = millis * (1000 * 1000); |
| 811 |
> |
final long wakeupTime = System.nanoTime() + nanos; |
| 812 |
> |
do { |
| 813 |
|
if (millis > 0L) |
| 814 |
|
Thread.sleep(millis); |
| 815 |
|
else // too short to sleep |
| 816 |
|
Thread.yield(); |
| 817 |
< |
long d = ns - (System.nanoTime() - startTime); |
| 818 |
< |
if (d > 0L) |
| 819 |
< |
millis = d / (1000 * 1000); |
| 820 |
< |
else |
| 821 |
< |
break; |
| 817 |
> |
nanos = wakeupTime - System.nanoTime(); |
| 818 |
> |
millis = nanos / (1000 * 1000); |
| 819 |
> |
} while (nanos >= 0L); |
| 820 |
> |
} |
| 821 |
> |
|
| 822 |
> |
/** |
| 823 |
> |
* Allows use of try-with-resources with per-test thread pools. |
| 824 |
> |
*/ |
| 825 |
> |
class PoolCleaner implements AutoCloseable { |
| 826 |
> |
private final ExecutorService pool; |
| 827 |
> |
public PoolCleaner(ExecutorService pool) { this.pool = pool; } |
| 828 |
> |
public void close() { joinPool(pool); } |
| 829 |
> |
} |
| 830 |
> |
|
| 831 |
> |
/** |
| 832 |
> |
* An extension of PoolCleaner that has an action to release the pool. |
| 833 |
> |
*/ |
| 834 |
> |
class PoolCleanerWithReleaser extends PoolCleaner { |
| 835 |
> |
private final Runnable releaser; |
| 836 |
> |
public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) { |
| 837 |
> |
super(pool); |
| 838 |
> |
this.releaser = releaser; |
| 839 |
> |
} |
| 840 |
> |
public void close() { |
| 841 |
> |
try { |
| 842 |
> |
releaser.run(); |
| 843 |
> |
} finally { |
| 844 |
> |
super.close(); |
| 845 |
> |
} |
| 846 |
|
} |
| 847 |
|
} |
| 848 |
|
|
| 849 |
+ |
PoolCleaner cleaner(ExecutorService pool) { |
| 850 |
+ |
return new PoolCleaner(pool); |
| 851 |
+ |
} |
| 852 |
+ |
|
| 853 |
+ |
PoolCleaner cleaner(ExecutorService pool, Runnable releaser) { |
| 854 |
+ |
return new PoolCleanerWithReleaser(pool, releaser); |
| 855 |
+ |
} |
| 856 |
+ |
|
| 857 |
+ |
PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) { |
| 858 |
+ |
return new PoolCleanerWithReleaser(pool, releaser(latch)); |
| 859 |
+ |
} |
| 860 |
+ |
|
| 861 |
+ |
Runnable releaser(final CountDownLatch latch) { |
| 862 |
+ |
return new Runnable() { public void run() { |
| 863 |
+ |
do { latch.countDown(); } |
| 864 |
+ |
while (latch.getCount() > 0); |
| 865 |
+ |
}}; |
| 866 |
+ |
} |
| 867 |
+ |
|
| 868 |
|
/** |
| 869 |
|
* Waits out termination of a thread pool or fails doing so. |
| 870 |
|
*/ |
| 871 |
|
void joinPool(ExecutorService pool) { |
| 872 |
|
try { |
| 873 |
|
pool.shutdown(); |
| 874 |
< |
if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) |
| 875 |
< |
fail("ExecutorService " + pool + |
| 876 |
< |
" did not terminate in a timely manner"); |
| 874 |
> |
if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) { |
| 875 |
> |
try { |
| 876 |
> |
threadFail("ExecutorService " + pool + |
| 877 |
> |
" did not terminate in a timely manner"); |
| 878 |
> |
} finally { |
| 879 |
> |
// last resort, for the benefit of subsequent tests |
| 880 |
> |
pool.shutdownNow(); |
| 881 |
> |
pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS); |
| 882 |
> |
} |
| 883 |
> |
} |
| 884 |
|
} catch (SecurityException ok) { |
| 885 |
|
// Allowed in case test doesn't have privs |
| 886 |
|
} catch (InterruptedException fail) { |
| 887 |
< |
fail("Unexpected InterruptedException"); |
| 887 |
> |
threadFail("Unexpected InterruptedException"); |
| 888 |
|
} |
| 889 |
|
} |
| 890 |
|
|
| 898 |
|
*/ |
| 899 |
|
void testInParallel(Action ... actions) { |
| 900 |
|
ExecutorService pool = Executors.newCachedThreadPool(); |
| 901 |
< |
try { |
| 901 |
> |
try (PoolCleaner cleaner = cleaner(pool)) { |
| 902 |
|
ArrayList<Future<?>> futures = new ArrayList<>(actions.length); |
| 903 |
|
for (final Action action : actions) |
| 904 |
|
futures.add(pool.submit(new CheckedRunnable() { |
| 911 |
|
} catch (Exception ex) { |
| 912 |
|
threadUnexpectedException(ex); |
| 913 |
|
} |
| 784 |
– |
} finally { |
| 785 |
– |
joinPool(pool); |
| 914 |
|
} |
| 915 |
|
} |
| 916 |
|
|
| 917 |
|
/** |
| 918 |
< |
* A debugging tool to print all stack traces, as jstack does. |
| 918 |
> |
* A debugging tool to print stack traces of most threads, as jstack does. |
| 919 |
> |
* Uninteresting threads are filtered out. |
| 920 |
|
*/ |
| 921 |
< |
static void printAllStackTraces() { |
| 922 |
< |
for (ThreadInfo info : |
| 923 |
< |
ManagementFactory.getThreadMXBean() |
| 924 |
< |
.dumpAllThreads(true, true)) |
| 921 |
> |
static void dumpTestThreads() { |
| 922 |
> |
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); |
| 923 |
> |
System.err.println("------ stacktrace dump start ------"); |
| 924 |
> |
for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) { |
| 925 |
> |
String name = info.getThreadName(); |
| 926 |
> |
if ("Signal Dispatcher".equals(name)) |
| 927 |
> |
continue; |
| 928 |
> |
if ("Reference Handler".equals(name) |
| 929 |
> |
&& info.getLockName().startsWith("java.lang.ref.Reference$Lock")) |
| 930 |
> |
continue; |
| 931 |
> |
if ("Finalizer".equals(name) |
| 932 |
> |
&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock")) |
| 933 |
> |
continue; |
| 934 |
> |
if ("checkForWedgedTest".equals(name)) |
| 935 |
> |
continue; |
| 936 |
|
System.err.print(info); |
| 937 |
+ |
} |
| 938 |
+ |
System.err.println("------ stacktrace dump end ------"); |
| 939 |
|
} |
| 940 |
|
|
| 941 |
|
/** |
| 955 |
|
delay(millis); |
| 956 |
|
assertTrue(thread.isAlive()); |
| 957 |
|
} catch (InterruptedException fail) { |
| 958 |
< |
fail("Unexpected InterruptedException"); |
| 958 |
> |
threadFail("Unexpected InterruptedException"); |
| 959 |
|
} |
| 960 |
|
} |
| 961 |
|
|
| 977 |
|
for (Thread thread : threads) |
| 978 |
|
assertTrue(thread.isAlive()); |
| 979 |
|
} catch (InterruptedException fail) { |
| 980 |
< |
fail("Unexpected InterruptedException"); |
| 980 |
> |
threadFail("Unexpected InterruptedException"); |
| 981 |
|
} |
| 982 |
|
} |
| 983 |
|
|
| 1255 |
|
} finally { |
| 1256 |
|
if (t.getState() != Thread.State.TERMINATED) { |
| 1257 |
|
t.interrupt(); |
| 1258 |
< |
fail("Test timed out"); |
| 1258 |
> |
threadFail("timed out waiting for thread to terminate"); |
| 1259 |
|
} |
| 1260 |
|
} |
| 1261 |
|
} |
| 1403 |
|
}}; |
| 1404 |
|
} |
| 1405 |
|
|
| 1406 |
< |
public Runnable awaiter(final CountDownLatch latch) { |
| 1407 |
< |
return new CheckedRunnable() { |
| 1408 |
< |
public void realRun() throws InterruptedException { |
| 1409 |
< |
await(latch); |
| 1410 |
< |
}}; |
| 1406 |
> |
class LatchAwaiter extends CheckedRunnable { |
| 1407 |
> |
static final int NEW = 0; |
| 1408 |
> |
static final int RUNNING = 1; |
| 1409 |
> |
static final int DONE = 2; |
| 1410 |
> |
final CountDownLatch latch; |
| 1411 |
> |
int state = NEW; |
| 1412 |
> |
LatchAwaiter(CountDownLatch latch) { this.latch = latch; } |
| 1413 |
> |
public void realRun() throws InterruptedException { |
| 1414 |
> |
state = 1; |
| 1415 |
> |
await(latch); |
| 1416 |
> |
state = 2; |
| 1417 |
> |
} |
| 1418 |
> |
} |
| 1419 |
> |
|
| 1420 |
> |
public LatchAwaiter awaiter(CountDownLatch latch) { |
| 1421 |
> |
return new LatchAwaiter(latch); |
| 1422 |
|
} |
| 1423 |
|
|
| 1424 |
|
public void await(CountDownLatch latch) { |
| 1425 |
|
try { |
| 1426 |
< |
assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS)); |
| 1426 |
> |
if (!latch.await(LONG_DELAY_MS, MILLISECONDS)) |
| 1427 |
> |
fail("timed out waiting for CountDownLatch for " |
| 1428 |
> |
+ (LONG_DELAY_MS/1000) + " sec"); |
| 1429 |
|
} catch (Throwable fail) { |
| 1430 |
|
threadUnexpectedException(fail); |
| 1431 |
|
} |
| 1433 |
|
|
| 1434 |
|
public void await(Semaphore semaphore) { |
| 1435 |
|
try { |
| 1436 |
< |
assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)); |
| 1436 |
> |
if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)) |
| 1437 |
> |
fail("timed out waiting for Semaphore for " |
| 1438 |
> |
+ (LONG_DELAY_MS/1000) + " sec"); |
| 1439 |
|
} catch (Throwable fail) { |
| 1440 |
|
threadUnexpectedException(fail); |
| 1441 |
|
} |
