6 |
|
* Pat Fisher, Mike Judd. |
7 |
|
*/ |
8 |
|
|
9 |
+ |
/* |
10 |
+ |
* @test |
11 |
+ |
* @summary JSR-166 tck tests |
12 |
+ |
* @modules java.management |
13 |
+ |
* @build * |
14 |
+ |
* @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase |
15 |
+ |
*/ |
16 |
+ |
|
17 |
|
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
18 |
+ |
import static java.util.concurrent.TimeUnit.MINUTES; |
19 |
|
import static java.util.concurrent.TimeUnit.NANOSECONDS; |
20 |
|
|
21 |
|
import java.io.ByteArrayInputStream; |
24 |
|
import java.io.ObjectOutputStream; |
25 |
|
import java.lang.management.ManagementFactory; |
26 |
|
import java.lang.management.ThreadInfo; |
27 |
+ |
import java.lang.management.ThreadMXBean; |
28 |
|
import java.lang.reflect.Constructor; |
29 |
|
import java.lang.reflect.Method; |
30 |
|
import java.lang.reflect.Modifier; |
31 |
+ |
import java.nio.file.Files; |
32 |
+ |
import java.nio.file.Paths; |
33 |
|
import java.security.CodeSource; |
34 |
|
import java.security.Permission; |
35 |
|
import java.security.PermissionCollection; |
49 |
|
import java.util.concurrent.Callable; |
50 |
|
import java.util.concurrent.CountDownLatch; |
51 |
|
import java.util.concurrent.CyclicBarrier; |
52 |
+ |
import java.util.concurrent.ExecutionException; |
53 |
+ |
import java.util.concurrent.Executors; |
54 |
|
import java.util.concurrent.ExecutorService; |
55 |
+ |
import java.util.concurrent.ForkJoinPool; |
56 |
|
import java.util.concurrent.Future; |
57 |
|
import java.util.concurrent.RecursiveAction; |
58 |
|
import java.util.concurrent.RecursiveTask; |
59 |
|
import java.util.concurrent.RejectedExecutionHandler; |
60 |
|
import java.util.concurrent.Semaphore; |
61 |
+ |
import java.util.concurrent.SynchronousQueue; |
62 |
|
import java.util.concurrent.ThreadFactory; |
63 |
|
import java.util.concurrent.ThreadPoolExecutor; |
64 |
|
import java.util.concurrent.TimeoutException; |
65 |
+ |
import java.util.concurrent.atomic.AtomicBoolean; |
66 |
|
import java.util.concurrent.atomic.AtomicReference; |
67 |
+ |
import java.util.regex.Matcher; |
68 |
|
import java.util.regex.Pattern; |
69 |
|
|
70 |
|
import junit.framework.AssertionFailedError; |
83 |
|
* |
84 |
|
* <ol> |
85 |
|
* |
86 |
< |
* <li> All assertions in code running in generated threads must use |
86 |
> |
* <li>All assertions in code running in generated threads must use |
87 |
|
* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link |
88 |
|
* #threadAssertEquals}, or {@link #threadAssertNull}, (not |
89 |
|
* {@code fail}, {@code assertTrue}, etc.) It is OK (but not |
90 |
|
* particularly recommended) for other code to use these forms too. |
91 |
|
* Only the most typically used JUnit assertion methods are defined |
92 |
< |
* this way, but enough to live with.</li> |
92 |
> |
* this way, but enough to live with. |
93 |
|
* |
94 |
< |
* <li> If you override {@link #setUp} or {@link #tearDown}, make sure |
94 |
> |
* <li>If you override {@link #setUp} or {@link #tearDown}, make sure |
95 |
|
* to invoke {@code super.setUp} and {@code super.tearDown} within |
96 |
|
* them. These methods are used to clear and check for thread |
97 |
< |
* assertion failures.</li> |
97 |
> |
* assertion failures. |
98 |
|
* |
99 |
|
* <li>All delays and timeouts must use one of the constants {@code |
100 |
|
* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS}, |
105 |
|
* is always discriminable as larger than SHORT and smaller than |
106 |
|
* MEDIUM. And so on. These constants are set to conservative values, |
107 |
|
* but even so, if there is ever any doubt, they can all be increased |
108 |
< |
* in one spot to rerun tests on slower platforms.</li> |
108 |
> |
* in one spot to rerun tests on slower platforms. |
109 |
|
* |
110 |
< |
* <li> All threads generated must be joined inside each test case |
110 |
> |
* <li>All threads generated must be joined inside each test case |
111 |
|
* method (or {@code fail} to do so) before returning from the |
112 |
|
* method. The {@code joinPool} method can be used to do this when |
113 |
< |
* using Executors.</li> |
113 |
> |
* using Executors. |
114 |
|
* |
115 |
|
* </ol> |
116 |
|
* |
117 |
|
* <p><b>Other notes</b> |
118 |
|
* <ul> |
119 |
|
* |
120 |
< |
* <li> Usually, there is one testcase method per JSR166 method |
120 |
> |
* <li>Usually, there is one testcase method per JSR166 method |
121 |
|
* covering "normal" operation, and then as many exception-testing |
122 |
|
* methods as there are exceptions the method can throw. Sometimes |
123 |
|
* there are multiple tests per JSR166 method when the different |
124 |
|
* "normal" behaviors differ significantly. And sometimes testcases |
125 |
< |
* cover multiple methods when they cannot be tested in |
108 |
< |
* isolation.</li> |
125 |
> |
* cover multiple methods when they cannot be tested in isolation. |
126 |
|
* |
127 |
< |
* <li> The documentation style for testcases is to provide as javadoc |
127 |
> |
* <li>The documentation style for testcases is to provide as javadoc |
128 |
|
* a simple sentence or two describing the property that the testcase |
129 |
|
* method purports to test. The javadocs do not say anything about how |
130 |
< |
* the property is tested. To find out, read the code.</li> |
130 |
> |
* the property is tested. To find out, read the code. |
131 |
|
* |
132 |
< |
* <li> These tests are "conformance tests", and do not attempt to |
132 |
> |
* <li>These tests are "conformance tests", and do not attempt to |
133 |
|
* test throughput, latency, scalability or other performance factors |
134 |
|
* (see the separate "jtreg" tests for a set intended to check these |
135 |
|
* for the most central aspects of functionality.) So, most tests use |
136 |
|
* the smallest sensible numbers of threads, collection sizes, etc |
137 |
< |
* needed to check basic conformance.</li> |
137 |
> |
* needed to check basic conformance. |
138 |
|
* |
139 |
|
* <li>The test classes currently do not declare inclusion in |
140 |
|
* any particular package to simplify things for people integrating |
141 |
< |
* them in TCK test suites.</li> |
141 |
> |
* them in TCK test suites. |
142 |
|
* |
143 |
< |
* <li> As a convenience, the {@code main} of this class (JSR166TestCase) |
144 |
< |
* runs all JSR166 unit tests.</li> |
143 |
> |
* <li>As a convenience, the {@code main} of this class (JSR166TestCase) |
144 |
> |
* runs all JSR166 unit tests. |
145 |
|
* |
146 |
|
* </ul> |
147 |
|
*/ |
185 |
|
private static final int suiteRuns = |
186 |
|
Integer.getInteger("jsr166.suiteRuns", 1); |
187 |
|
|
188 |
+ |
/** |
189 |
+ |
* Returns the value of the system property, or NaN if not defined. |
190 |
+ |
*/ |
191 |
+ |
private static float systemPropertyValue(String name) { |
192 |
+ |
String floatString = System.getProperty(name); |
193 |
+ |
if (floatString == null) |
194 |
+ |
return Float.NaN; |
195 |
+ |
try { |
196 |
+ |
return Float.parseFloat(floatString); |
197 |
+ |
} catch (NumberFormatException ex) { |
198 |
+ |
throw new IllegalArgumentException( |
199 |
+ |
String.format("Bad float value in system property %s=%s", |
200 |
+ |
name, floatString)); |
201 |
+ |
} |
202 |
+ |
} |
203 |
+ |
|
204 |
+ |
/** |
205 |
+ |
* The scaling factor to apply to standard delays used in tests. |
206 |
+ |
* May be initialized from any of: |
207 |
+ |
* - the "jsr166.delay.factor" system property |
208 |
+ |
* - the "test.timeout.factor" system property (as used by jtreg) |
209 |
+ |
* See: http://openjdk.java.net/jtreg/tag-spec.html |
210 |
+ |
* - hard-coded fuzz factor when using a known slowpoke VM |
211 |
+ |
*/ |
212 |
+ |
private static final float delayFactor = delayFactor(); |
213 |
+ |
|
214 |
+ |
private static float delayFactor() { |
215 |
+ |
float x; |
216 |
+ |
if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor"))) |
217 |
+ |
return x; |
218 |
+ |
if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor"))) |
219 |
+ |
return x; |
220 |
+ |
String prop = System.getProperty("java.vm.version"); |
221 |
+ |
if (prop != null && prop.matches(".*debug.*")) |
222 |
+ |
return 4.0f; // How much slower is fastdebug than product?! |
223 |
+ |
return 1.0f; |
224 |
+ |
} |
225 |
+ |
|
226 |
|
public JSR166TestCase() { super(); } |
227 |
|
public JSR166TestCase(String name) { super(name); } |
228 |
|
|
238 |
|
return (regex == null) ? null : Pattern.compile(regex); |
239 |
|
} |
240 |
|
|
241 |
< |
protected void runTest() throws Throwable { |
241 |
> |
// Instrumentation to debug very rare, but very annoying hung test runs. |
242 |
> |
static volatile TestCase currentTestCase; |
243 |
> |
// static volatile int currentRun = 0; |
244 |
> |
static { |
245 |
> |
Runnable checkForWedgedTest = new Runnable() { public void run() { |
246 |
> |
// Avoid spurious reports with enormous runsPerTest. |
247 |
> |
// A single test case run should never take more than 1 second. |
248 |
> |
// But let's cap it at the high end too ... |
249 |
> |
final int timeoutMinutes = |
250 |
> |
Math.min(15, Math.max(runsPerTest / 60, 1)); |
251 |
> |
for (TestCase lastTestCase = currentTestCase;;) { |
252 |
> |
try { MINUTES.sleep(timeoutMinutes); } |
253 |
> |
catch (InterruptedException unexpected) { break; } |
254 |
> |
if (lastTestCase == currentTestCase) { |
255 |
> |
System.err.printf( |
256 |
> |
"Looks like we're stuck running test: %s%n", |
257 |
> |
lastTestCase); |
258 |
> |
// System.err.printf( |
259 |
> |
// "Looks like we're stuck running test: %s (%d/%d)%n", |
260 |
> |
// lastTestCase, currentRun, runsPerTest); |
261 |
> |
// System.err.println("availableProcessors=" + |
262 |
> |
// Runtime.getRuntime().availableProcessors()); |
263 |
> |
// System.err.printf("cpu model = %s%n", cpuModel()); |
264 |
> |
dumpTestThreads(); |
265 |
> |
// one stack dump is probably enough; more would be spam |
266 |
> |
break; |
267 |
> |
} |
268 |
> |
lastTestCase = currentTestCase; |
269 |
> |
}}}; |
270 |
> |
Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest"); |
271 |
> |
thread.setDaemon(true); |
272 |
> |
thread.start(); |
273 |
> |
} |
274 |
> |
|
275 |
> |
// public static String cpuModel() { |
276 |
> |
// try { |
277 |
> |
// Matcher matcher = Pattern.compile("model name\\s*: (.*)") |
278 |
> |
// .matcher(new String( |
279 |
> |
// Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8")); |
280 |
> |
// matcher.find(); |
281 |
> |
// return matcher.group(1); |
282 |
> |
// } catch (Exception ex) { return null; } |
283 |
> |
// } |
284 |
> |
|
285 |
> |
public void runBare() throws Throwable { |
286 |
> |
currentTestCase = this; |
287 |
|
if (methodFilter == null |
288 |
< |
|| methodFilter.matcher(toString()).find()) { |
289 |
< |
for (int i = 0; i < runsPerTest; i++) { |
290 |
< |
if (profileTests) |
291 |
< |
runTestProfiled(); |
292 |
< |
else |
293 |
< |
super.runTest(); |
294 |
< |
} |
288 |
> |
|| methodFilter.matcher(toString()).find()) |
289 |
> |
super.runBare(); |
290 |
> |
} |
291 |
> |
|
292 |
> |
protected void runTest() throws Throwable { |
293 |
> |
for (int i = 0; i < runsPerTest; i++) { |
294 |
> |
// currentRun = i; |
295 |
> |
if (profileTests) |
296 |
> |
runTestProfiled(); |
297 |
> |
else |
298 |
> |
super.runTest(); |
299 |
|
} |
300 |
|
} |
301 |
|
|
302 |
|
protected void runTestProfiled() throws Throwable { |
303 |
< |
// Warmup run, notably to trigger all needed classloading. |
304 |
< |
super.runTest(); |
201 |
< |
long t0 = System.nanoTime(); |
202 |
< |
try { |
303 |
> |
for (int i = 0; i < 2; i++) { |
304 |
> |
long startTime = System.nanoTime(); |
305 |
|
super.runTest(); |
306 |
< |
} finally { |
307 |
< |
long elapsedMillis = millisElapsedSince(t0); |
308 |
< |
if (elapsedMillis >= profileThreshold) |
306 |
> |
long elapsedMillis = millisElapsedSince(startTime); |
307 |
> |
if (elapsedMillis < profileThreshold) |
308 |
> |
break; |
309 |
> |
// Never report first run of any test; treat it as a |
310 |
> |
// warmup run, notably to trigger all needed classloading, |
311 |
> |
if (i > 0) |
312 |
|
System.out.printf("%n%s: %d%n", toString(), elapsedMillis); |
313 |
|
} |
314 |
|
} |
320 |
|
main(suite(), args); |
321 |
|
} |
322 |
|
|
323 |
+ |
static class PithyResultPrinter extends junit.textui.ResultPrinter { |
324 |
+ |
PithyResultPrinter(java.io.PrintStream writer) { super(writer); } |
325 |
+ |
long runTime; |
326 |
+ |
public void startTest(Test test) {} |
327 |
+ |
protected void printHeader(long runTime) { |
328 |
+ |
this.runTime = runTime; // defer printing for later |
329 |
+ |
} |
330 |
+ |
protected void printFooter(TestResult result) { |
331 |
+ |
if (result.wasSuccessful()) { |
332 |
+ |
getWriter().println("OK (" + result.runCount() + " tests)" |
333 |
+ |
+ " Time: " + elapsedTimeAsString(runTime)); |
334 |
+ |
} else { |
335 |
+ |
getWriter().println("Time: " + elapsedTimeAsString(runTime)); |
336 |
+ |
super.printFooter(result); |
337 |
+ |
} |
338 |
+ |
} |
339 |
+ |
} |
340 |
+ |
|
341 |
+ |
/** |
342 |
+ |
* Returns a TestRunner that doesn't bother with unnecessary |
343 |
+ |
* fluff, like printing a "." for each test case. |
344 |
+ |
*/ |
345 |
+ |
static junit.textui.TestRunner newPithyTestRunner() { |
346 |
+ |
junit.textui.TestRunner runner = new junit.textui.TestRunner(); |
347 |
+ |
runner.setPrinter(new PithyResultPrinter(System.out)); |
348 |
+ |
return runner; |
349 |
+ |
} |
350 |
+ |
|
351 |
|
/** |
352 |
|
* Runs all unit tests in the given test suite. |
353 |
|
* Actual behavior influenced by jsr166.* system properties. |
359 |
|
System.setSecurityManager(new SecurityManager()); |
360 |
|
} |
361 |
|
for (int i = 0; i < suiteRuns; i++) { |
362 |
< |
TestResult result = junit.textui.TestRunner.run(suite); |
362 |
> |
TestResult result = newPithyTestRunner().doRun(suite); |
363 |
|
if (!result.wasSuccessful()) |
364 |
|
System.exit(1); |
365 |
|
System.gc(); |
510 |
|
"LongAdderTest", |
511 |
|
"SplittableRandomTest", |
512 |
|
"StampedLockTest", |
513 |
+ |
"SubmissionPublisherTest", |
514 |
|
"ThreadLocalRandom8Test", |
515 |
+ |
"TimeUnit8Test", |
516 |
|
}; |
517 |
|
addNamedTestClasses(suite, java8TestClassNames); |
518 |
|
} |
520 |
|
// Java9+ test classes |
521 |
|
if (atLeastJava9()) { |
522 |
|
String[] java9TestClassNames = { |
523 |
< |
"ThreadPoolExecutor9Test", |
523 |
> |
"ExecutorCompletionService9Test", |
524 |
|
}; |
525 |
|
addNamedTestClasses(suite, java9TestClassNames); |
526 |
|
} |
587 |
|
} else { |
588 |
|
return new TestSuite(); |
589 |
|
} |
455 |
– |
|
590 |
|
} |
591 |
|
|
592 |
|
// Delays for timing-dependent tests, in milliseconds. |
597 |
|
public static long LONG_DELAY_MS; |
598 |
|
|
599 |
|
/** |
600 |
< |
* Returns the shortest timed delay. This could |
601 |
< |
* be reimplemented to use for example a Property. |
600 |
> |
* Returns the shortest timed delay. This can be scaled up for |
601 |
> |
* slow machines using the jsr166.delay.factor system property, |
602 |
> |
* or via jtreg's -timeoutFactor: flag. |
603 |
> |
* http://openjdk.java.net/jtreg/command-help.html |
604 |
|
*/ |
605 |
|
protected long getShortDelay() { |
606 |
< |
return 50; |
606 |
> |
return (long) (50 * delayFactor); |
607 |
|
} |
608 |
|
|
609 |
|
/** |
646 |
|
* the same test have no effect. |
647 |
|
*/ |
648 |
|
public void threadRecordFailure(Throwable t) { |
649 |
+ |
System.err.println(t); |
650 |
+ |
dumpTestThreads(); |
651 |
|
threadFailure.compareAndSet(null, t); |
652 |
|
} |
653 |
|
|
655 |
|
setDelays(); |
656 |
|
} |
657 |
|
|
658 |
+ |
void tearDownFail(String format, Object... args) { |
659 |
+ |
String msg = toString() + ": " + String.format(format, args); |
660 |
+ |
System.err.println(msg); |
661 |
+ |
dumpTestThreads(); |
662 |
+ |
throw new AssertionFailedError(msg); |
663 |
+ |
} |
664 |
+ |
|
665 |
|
/** |
666 |
|
* Extra checks that get done for all test cases. |
667 |
|
* |
689 |
|
} |
690 |
|
|
691 |
|
if (Thread.interrupted()) |
692 |
< |
throw new AssertionFailedError("interrupt status set in main thread"); |
692 |
> |
tearDownFail("interrupt status set in main thread"); |
693 |
|
|
694 |
|
checkForkJoinPoolThreadLeaks(); |
695 |
|
} |
696 |
|
|
697 |
|
/** |
698 |
< |
* Finds missing try { ... } finally { joinPool(e); } |
698 |
> |
* Finds missing PoolCleaners |
699 |
|
*/ |
700 |
|
void checkForkJoinPoolThreadLeaks() throws InterruptedException { |
701 |
< |
Thread[] survivors = new Thread[5]; |
701 |
> |
Thread[] survivors = new Thread[7]; |
702 |
|
int count = Thread.enumerate(survivors); |
703 |
|
for (int i = 0; i < count; i++) { |
704 |
|
Thread thread = survivors[i]; |
706 |
|
if (name.startsWith("ForkJoinPool-")) { |
707 |
|
// give thread some time to terminate |
708 |
|
thread.join(LONG_DELAY_MS); |
709 |
< |
if (!thread.isAlive()) continue; |
710 |
< |
throw new AssertionFailedError |
711 |
< |
(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n", |
567 |
< |
toString(), name)); |
709 |
> |
if (thread.isAlive()) |
710 |
> |
tearDownFail("Found leaked ForkJoinPool thread thread=%s", |
711 |
> |
thread); |
712 |
|
} |
713 |
|
} |
714 |
+ |
|
715 |
+ |
if (!ForkJoinPool.commonPool() |
716 |
+ |
.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS)) |
717 |
+ |
tearDownFail("ForkJoin common pool thread stuck"); |
718 |
|
} |
719 |
|
|
720 |
|
/** |
727 |
|
fail(reason); |
728 |
|
} catch (AssertionFailedError t) { |
729 |
|
threadRecordFailure(t); |
730 |
< |
fail(reason); |
730 |
> |
throw t; |
731 |
|
} |
732 |
|
} |
733 |
|
|
854 |
|
/** |
855 |
|
* Delays, via Thread.sleep, for the given millisecond delay, but |
856 |
|
* if the sleep is shorter than specified, may re-sleep or yield |
857 |
< |
* until time elapses. |
857 |
> |
* until time elapses. Ensures that the given time, as measured |
858 |
> |
* by System.nanoTime(), has elapsed. |
859 |
|
*/ |
860 |
|
static void delay(long millis) throws InterruptedException { |
861 |
< |
long startTime = System.nanoTime(); |
862 |
< |
long ns = millis * 1000 * 1000; |
863 |
< |
for (;;) { |
861 |
> |
long nanos = millis * (1000 * 1000); |
862 |
> |
final long wakeupTime = System.nanoTime() + nanos; |
863 |
> |
do { |
864 |
|
if (millis > 0L) |
865 |
|
Thread.sleep(millis); |
866 |
|
else // too short to sleep |
867 |
|
Thread.yield(); |
868 |
< |
long d = ns - (System.nanoTime() - startTime); |
869 |
< |
if (d > 0L) |
870 |
< |
millis = d / (1000 * 1000); |
871 |
< |
else |
872 |
< |
break; |
868 |
> |
nanos = wakeupTime - System.nanoTime(); |
869 |
> |
millis = nanos / (1000 * 1000); |
870 |
> |
} while (nanos >= 0L); |
871 |
> |
} |
872 |
> |
|
873 |
> |
/** |
874 |
> |
* Allows use of try-with-resources with per-test thread pools. |
875 |
> |
*/ |
876 |
> |
class PoolCleaner implements AutoCloseable { |
877 |
> |
private final ExecutorService pool; |
878 |
> |
public PoolCleaner(ExecutorService pool) { this.pool = pool; } |
879 |
> |
public void close() { joinPool(pool); } |
880 |
> |
} |
881 |
> |
|
882 |
> |
/** |
883 |
> |
* An extension of PoolCleaner that has an action to release the pool. |
884 |
> |
*/ |
885 |
> |
class PoolCleanerWithReleaser extends PoolCleaner { |
886 |
> |
private final Runnable releaser; |
887 |
> |
public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) { |
888 |
> |
super(pool); |
889 |
> |
this.releaser = releaser; |
890 |
> |
} |
891 |
> |
public void close() { |
892 |
> |
try { |
893 |
> |
releaser.run(); |
894 |
> |
} finally { |
895 |
> |
super.close(); |
896 |
> |
} |
897 |
|
} |
898 |
|
} |
899 |
|
|
900 |
+ |
PoolCleaner cleaner(ExecutorService pool) { |
901 |
+ |
return new PoolCleaner(pool); |
902 |
+ |
} |
903 |
+ |
|
904 |
+ |
PoolCleaner cleaner(ExecutorService pool, Runnable releaser) { |
905 |
+ |
return new PoolCleanerWithReleaser(pool, releaser); |
906 |
+ |
} |
907 |
+ |
|
908 |
+ |
PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) { |
909 |
+ |
return new PoolCleanerWithReleaser(pool, releaser(latch)); |
910 |
+ |
} |
911 |
+ |
|
912 |
+ |
Runnable releaser(final CountDownLatch latch) { |
913 |
+ |
return new Runnable() { public void run() { |
914 |
+ |
do { latch.countDown(); } |
915 |
+ |
while (latch.getCount() > 0); |
916 |
+ |
}}; |
917 |
+ |
} |
918 |
+ |
|
919 |
+ |
PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) { |
920 |
+ |
return new PoolCleanerWithReleaser(pool, releaser(flag)); |
921 |
+ |
} |
922 |
+ |
|
923 |
+ |
Runnable releaser(final AtomicBoolean flag) { |
924 |
+ |
return new Runnable() { public void run() { flag.set(true); }}; |
925 |
+ |
} |
926 |
+ |
|
927 |
|
/** |
928 |
|
* Waits out termination of a thread pool or fails doing so. |
929 |
|
*/ |
930 |
< |
void joinPool(ExecutorService exec) { |
930 |
> |
void joinPool(ExecutorService pool) { |
931 |
|
try { |
932 |
< |
exec.shutdown(); |
933 |
< |
if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) |
934 |
< |
fail("ExecutorService " + exec + |
935 |
< |
" did not terminate in a timely manner"); |
932 |
> |
pool.shutdown(); |
933 |
> |
if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) { |
934 |
> |
try { |
935 |
> |
threadFail("ExecutorService " + pool + |
936 |
> |
" did not terminate in a timely manner"); |
937 |
> |
} finally { |
938 |
> |
// last resort, for the benefit of subsequent tests |
939 |
> |
pool.shutdownNow(); |
940 |
> |
pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS); |
941 |
> |
} |
942 |
> |
} |
943 |
|
} catch (SecurityException ok) { |
944 |
|
// Allowed in case test doesn't have privs |
945 |
|
} catch (InterruptedException fail) { |
946 |
< |
fail("Unexpected InterruptedException"); |
946 |
> |
threadFail("Unexpected InterruptedException"); |
947 |
|
} |
948 |
|
} |
949 |
|
|
950 |
+ |
/** Like Runnable, but with the freedom to throw anything */ |
951 |
+ |
interface Action { public void run() throws Throwable; } |
952 |
+ |
|
953 |
|
/** |
954 |
< |
* A debugging tool to print all stack traces, as jstack does. |
954 |
> |
* Runs all the given actions in parallel, failing if any fail. |
955 |
> |
* Useful for running multiple variants of tests that are |
956 |
> |
* necessarily individually slow because they must block. |
957 |
|
*/ |
958 |
< |
static void printAllStackTraces() { |
959 |
< |
for (ThreadInfo info : |
960 |
< |
ManagementFactory.getThreadMXBean() |
961 |
< |
.dumpAllThreads(true, true)) |
958 |
> |
void testInParallel(Action ... actions) { |
959 |
> |
ExecutorService pool = Executors.newCachedThreadPool(); |
960 |
> |
try (PoolCleaner cleaner = cleaner(pool)) { |
961 |
> |
ArrayList<Future<?>> futures = new ArrayList<>(actions.length); |
962 |
> |
for (final Action action : actions) |
963 |
> |
futures.add(pool.submit(new CheckedRunnable() { |
964 |
> |
public void realRun() throws Throwable { action.run();}})); |
965 |
> |
for (Future<?> future : futures) |
966 |
> |
try { |
967 |
> |
assertNull(future.get(LONG_DELAY_MS, MILLISECONDS)); |
968 |
> |
} catch (ExecutionException ex) { |
969 |
> |
threadUnexpectedException(ex.getCause()); |
970 |
> |
} catch (Exception ex) { |
971 |
> |
threadUnexpectedException(ex); |
972 |
> |
} |
973 |
> |
} |
974 |
> |
} |
975 |
> |
|
976 |
> |
/** |
977 |
> |
* A debugging tool to print stack traces of most threads, as jstack does. |
978 |
> |
* Uninteresting threads are filtered out. |
979 |
> |
*/ |
980 |
> |
static void dumpTestThreads() { |
981 |
> |
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); |
982 |
> |
System.err.println("------ stacktrace dump start ------"); |
983 |
> |
for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) { |
984 |
> |
String name = info.getThreadName(); |
985 |
> |
if ("Signal Dispatcher".equals(name)) |
986 |
> |
continue; |
987 |
> |
if ("Reference Handler".equals(name) |
988 |
> |
&& info.getLockName().startsWith("java.lang.ref.Reference$Lock")) |
989 |
> |
continue; |
990 |
> |
if ("Finalizer".equals(name) |
991 |
> |
&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock")) |
992 |
> |
continue; |
993 |
> |
if ("checkForWedgedTest".equals(name)) |
994 |
> |
continue; |
995 |
|
System.err.print(info); |
996 |
+ |
} |
997 |
+ |
System.err.println("------ stacktrace dump end ------"); |
998 |
|
} |
999 |
|
|
1000 |
|
/** |
1014 |
|
delay(millis); |
1015 |
|
assertTrue(thread.isAlive()); |
1016 |
|
} catch (InterruptedException fail) { |
1017 |
< |
fail("Unexpected InterruptedException"); |
1017 |
> |
threadFail("Unexpected InterruptedException"); |
1018 |
|
} |
1019 |
|
} |
1020 |
|
|
1036 |
|
for (Thread thread : threads) |
1037 |
|
assertTrue(thread.isAlive()); |
1038 |
|
} catch (InterruptedException fail) { |
1039 |
< |
fail("Unexpected InterruptedException"); |
1039 |
> |
threadFail("Unexpected InterruptedException"); |
1040 |
|
} |
1041 |
|
} |
1042 |
|
|
1314 |
|
} finally { |
1315 |
|
if (t.getState() != Thread.State.TERMINATED) { |
1316 |
|
t.interrupt(); |
1317 |
< |
fail("Test timed out"); |
1317 |
> |
threadFail("timed out waiting for thread to terminate"); |
1318 |
|
} |
1319 |
|
} |
1320 |
|
} |
1439 |
|
public static final String TEST_STRING = "a test string"; |
1440 |
|
|
1441 |
|
public static class StringTask implements Callable<String> { |
1442 |
< |
public String call() { return TEST_STRING; } |
1442 |
> |
final String value; |
1443 |
> |
public StringTask() { this(TEST_STRING); } |
1444 |
> |
public StringTask(String value) { this.value = value; } |
1445 |
> |
public String call() { return value; } |
1446 |
|
} |
1447 |
|
|
1448 |
|
public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) { |
1455 |
|
}}; |
1456 |
|
} |
1457 |
|
|
1458 |
< |
public Runnable awaiter(final CountDownLatch latch) { |
1458 |
> |
public Runnable countDowner(final CountDownLatch latch) { |
1459 |
|
return new CheckedRunnable() { |
1460 |
|
public void realRun() throws InterruptedException { |
1461 |
< |
await(latch); |
1461 |
> |
latch.countDown(); |
1462 |
|
}}; |
1463 |
|
} |
1464 |
|
|
1465 |
< |
public void await(CountDownLatch latch) { |
1465 |
> |
class LatchAwaiter extends CheckedRunnable { |
1466 |
> |
static final int NEW = 0; |
1467 |
> |
static final int RUNNING = 1; |
1468 |
> |
static final int DONE = 2; |
1469 |
> |
final CountDownLatch latch; |
1470 |
> |
int state = NEW; |
1471 |
> |
LatchAwaiter(CountDownLatch latch) { this.latch = latch; } |
1472 |
> |
public void realRun() throws InterruptedException { |
1473 |
> |
state = 1; |
1474 |
> |
await(latch); |
1475 |
> |
state = 2; |
1476 |
> |
} |
1477 |
> |
} |
1478 |
> |
|
1479 |
> |
public LatchAwaiter awaiter(CountDownLatch latch) { |
1480 |
> |
return new LatchAwaiter(latch); |
1481 |
> |
} |
1482 |
> |
|
1483 |
> |
public void await(CountDownLatch latch, long timeoutMillis) { |
1484 |
|
try { |
1485 |
< |
assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS)); |
1485 |
> |
if (!latch.await(timeoutMillis, MILLISECONDS)) |
1486 |
> |
fail("timed out waiting for CountDownLatch for " |
1487 |
> |
+ (timeoutMillis/1000) + " sec"); |
1488 |
|
} catch (Throwable fail) { |
1489 |
|
threadUnexpectedException(fail); |
1490 |
|
} |
1491 |
|
} |
1492 |
|
|
1493 |
+ |
public void await(CountDownLatch latch) { |
1494 |
+ |
await(latch, LONG_DELAY_MS); |
1495 |
+ |
} |
1496 |
+ |
|
1497 |
|
public void await(Semaphore semaphore) { |
1498 |
|
try { |
1499 |
< |
assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)); |
1499 |
> |
if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)) |
1500 |
> |
fail("timed out waiting for Semaphore for " |
1501 |
> |
+ (LONG_DELAY_MS/1000) + " sec"); |
1502 |
|
} catch (Throwable fail) { |
1503 |
|
threadUnexpectedException(fail); |
1504 |
|
} |
1834 |
|
} catch (NoSuchElementException success) {} |
1835 |
|
assertFalse(it.hasNext()); |
1836 |
|
} |
1837 |
+ |
|
1838 |
+ |
public <T> Callable<T> callableThrowing(final Exception ex) { |
1839 |
+ |
return new Callable<T>() { public T call() throws Exception { throw ex; }}; |
1840 |
+ |
} |
1841 |
+ |
|
1842 |
+ |
public Runnable runnableThrowing(final RuntimeException ex) { |
1843 |
+ |
return new Runnable() { public void run() { throw ex; }}; |
1844 |
+ |
} |
1845 |
+ |
|
1846 |
+ |
/** A reusable thread pool to be shared by tests. */ |
1847 |
+ |
static final ExecutorService cachedThreadPool = |
1848 |
+ |
new ThreadPoolExecutor(0, Integer.MAX_VALUE, |
1849 |
+ |
1000L, MILLISECONDS, |
1850 |
+ |
new SynchronousQueue<Runnable>()); |
1851 |
+ |
|
1852 |
|
} |