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; |
41 |
|
import java.util.concurrent.Callable; |
42 |
|
import java.util.concurrent.CountDownLatch; |
43 |
|
import java.util.concurrent.CyclicBarrier; |
44 |
+ |
import java.util.concurrent.ExecutionException; |
45 |
+ |
import java.util.concurrent.Executors; |
46 |
|
import java.util.concurrent.ExecutorService; |
47 |
+ |
import java.util.concurrent.ForkJoinPool; |
48 |
|
import java.util.concurrent.Future; |
49 |
|
import java.util.concurrent.RecursiveAction; |
50 |
|
import java.util.concurrent.RecursiveTask; |
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; |
61 |
|
import junit.framework.Test; |
62 |
|
import junit.framework.TestCase; |
63 |
+ |
import junit.framework.TestResult; |
64 |
|
import junit.framework.TestSuite; |
65 |
|
|
66 |
|
/** |
73 |
|
* |
74 |
|
* <ol> |
75 |
|
* |
76 |
< |
* <li> All assertions in code running in generated threads must use |
76 |
> |
* <li>All assertions in code running in generated threads must use |
77 |
|
* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link |
78 |
|
* #threadAssertEquals}, or {@link #threadAssertNull}, (not |
79 |
|
* {@code fail}, {@code assertTrue}, etc.) It is OK (but not |
80 |
|
* particularly recommended) for other code to use these forms too. |
81 |
|
* Only the most typically used JUnit assertion methods are defined |
82 |
< |
* this way, but enough to live with.</li> |
82 |
> |
* this way, but enough to live with. |
83 |
|
* |
84 |
< |
* <li> If you override {@link #setUp} or {@link #tearDown}, make sure |
84 |
> |
* <li>If you override {@link #setUp} or {@link #tearDown}, make sure |
85 |
|
* to invoke {@code super.setUp} and {@code super.tearDown} within |
86 |
|
* them. These methods are used to clear and check for thread |
87 |
< |
* assertion failures.</li> |
87 |
> |
* assertion failures. |
88 |
|
* |
89 |
|
* <li>All delays and timeouts must use one of the constants {@code |
90 |
|
* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS}, |
95 |
|
* is always discriminable as larger than SHORT and smaller than |
96 |
|
* MEDIUM. And so on. These constants are set to conservative values, |
97 |
|
* but even so, if there is ever any doubt, they can all be increased |
98 |
< |
* in one spot to rerun tests on slower platforms.</li> |
98 |
> |
* in one spot to rerun tests on slower platforms. |
99 |
|
* |
100 |
< |
* <li> All threads generated must be joined inside each test case |
100 |
> |
* <li>All threads generated must be joined inside each test case |
101 |
|
* method (or {@code fail} to do so) before returning from the |
102 |
|
* method. The {@code joinPool} method can be used to do this when |
103 |
< |
* using Executors.</li> |
103 |
> |
* using Executors. |
104 |
|
* |
105 |
|
* </ol> |
106 |
|
* |
107 |
|
* <p><b>Other notes</b> |
108 |
|
* <ul> |
109 |
|
* |
110 |
< |
* <li> Usually, there is one testcase method per JSR166 method |
110 |
> |
* <li>Usually, there is one testcase method per JSR166 method |
111 |
|
* covering "normal" operation, and then as many exception-testing |
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 |
116 |
< |
* isolation.</li> |
116 |
> |
* isolation. |
117 |
|
* |
118 |
< |
* <li> The documentation style for testcases is to provide as javadoc |
118 |
> |
* <li>The documentation style for testcases is to provide as javadoc |
119 |
|
* a simple sentence or two describing the property that the testcase |
120 |
|
* method purports to test. The javadocs do not say anything about how |
121 |
< |
* the property is tested. To find out, read the code.</li> |
121 |
> |
* the property is tested. To find out, read the code. |
122 |
|
* |
123 |
< |
* <li> These tests are "conformance tests", and do not attempt to |
123 |
> |
* <li>These tests are "conformance tests", and do not attempt to |
124 |
|
* test throughput, latency, scalability or other performance factors |
125 |
|
* (see the separate "jtreg" tests for a set intended to check these |
126 |
|
* for the most central aspects of functionality.) So, most tests use |
127 |
|
* the smallest sensible numbers of threads, collection sizes, etc |
128 |
< |
* needed to check basic conformance.</li> |
128 |
> |
* needed to check basic conformance. |
129 |
|
* |
130 |
|
* <li>The test classes currently do not declare inclusion in |
131 |
|
* any particular package to simplify things for people integrating |
132 |
< |
* them in TCK test suites.</li> |
132 |
> |
* them in TCK test suites. |
133 |
|
* |
134 |
< |
* <li> As a convenience, the {@code main} of this class (JSR166TestCase) |
135 |
< |
* runs all JSR166 unit tests.</li> |
134 |
> |
* <li>As a convenience, the {@code main} of this class (JSR166TestCase) |
135 |
> |
* runs all JSR166 unit tests. |
136 |
|
* |
137 |
|
* </ul> |
138 |
|
*/ |
171 |
|
Integer.getInteger("jsr166.runsPerTest", 1); |
172 |
|
|
173 |
|
/** |
174 |
+ |
* The number of repetitions of the test suite (for finding leaks?). |
175 |
+ |
*/ |
176 |
+ |
private static final int suiteRuns = |
177 |
+ |
Integer.getInteger("jsr166.suiteRuns", 1); |
178 |
+ |
|
179 |
+ |
public JSR166TestCase() { super(); } |
180 |
+ |
public JSR166TestCase(String name) { super(name); } |
181 |
+ |
|
182 |
+ |
/** |
183 |
|
* A filter for tests to run, matching strings of the form |
184 |
|
* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)" |
185 |
|
* Usefully combined with jsr166.runsPerTest. |
191 |
|
return (regex == null) ? null : Pattern.compile(regex); |
192 |
|
} |
193 |
|
|
194 |
< |
protected void runTest() throws Throwable { |
194 |
> |
// Instrumentation to debug very rare, but very annoying hung test runs. |
195 |
> |
static volatile TestCase currentTestCase; |
196 |
> |
// static volatile int currentRun = 0; |
197 |
> |
static { |
198 |
> |
Runnable checkForWedgedTest = new Runnable() { public void run() { |
199 |
> |
// Avoid spurious reports with enormous runsPerTest. |
200 |
> |
// A single test case run should never take more than 1 second. |
201 |
> |
// But let's cap it at the high end too ... |
202 |
> |
final int timeoutMinutes = |
203 |
> |
Math.min(15, Math.max(runsPerTest / 60, 1)); |
204 |
> |
for (TestCase lastTestCase = currentTestCase;;) { |
205 |
> |
try { MINUTES.sleep(timeoutMinutes); } |
206 |
> |
catch (InterruptedException unexpected) { break; } |
207 |
> |
if (lastTestCase == currentTestCase) { |
208 |
> |
System.err.printf( |
209 |
> |
"Looks like we're stuck running test: %s%n", |
210 |
> |
lastTestCase); |
211 |
> |
// System.err.printf( |
212 |
> |
// "Looks like we're stuck running test: %s (%d/%d)%n", |
213 |
> |
// lastTestCase, currentRun, runsPerTest); |
214 |
> |
// System.err.println("availableProcessors=" + |
215 |
> |
// Runtime.getRuntime().availableProcessors()); |
216 |
> |
// System.err.printf("cpu model = %s%n", cpuModel()); |
217 |
> |
dumpTestThreads(); |
218 |
> |
// one stack dump is probably enough; more would be spam |
219 |
> |
break; |
220 |
> |
} |
221 |
> |
lastTestCase = currentTestCase; |
222 |
> |
}}}; |
223 |
> |
Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest"); |
224 |
> |
thread.setDaemon(true); |
225 |
> |
thread.start(); |
226 |
> |
} |
227 |
> |
|
228 |
> |
// public static String cpuModel() { |
229 |
> |
// try { |
230 |
> |
// Matcher matcher = Pattern.compile("model name\\s*: (.*)") |
231 |
> |
// .matcher(new String( |
232 |
> |
// Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8")); |
233 |
> |
// matcher.find(); |
234 |
> |
// return matcher.group(1); |
235 |
> |
// } catch (Exception ex) { return null; } |
236 |
> |
// } |
237 |
> |
|
238 |
> |
public void runBare() throws Throwable { |
239 |
> |
currentTestCase = this; |
240 |
|
if (methodFilter == null |
241 |
< |
|| methodFilter.matcher(toString()).find()) { |
242 |
< |
for (int i = 0; i < runsPerTest; i++) { |
243 |
< |
if (profileTests) |
244 |
< |
runTestProfiled(); |
245 |
< |
else |
246 |
< |
super.runTest(); |
247 |
< |
} |
241 |
> |
|| methodFilter.matcher(toString()).find()) |
242 |
> |
super.runBare(); |
243 |
> |
} |
244 |
> |
|
245 |
> |
protected void runTest() throws Throwable { |
246 |
> |
for (int i = 0; i < runsPerTest; i++) { |
247 |
> |
// currentRun = i; |
248 |
> |
if (profileTests) |
249 |
> |
runTestProfiled(); |
250 |
> |
else |
251 |
> |
super.runTest(); |
252 |
|
} |
253 |
|
} |
254 |
|
|
255 |
|
protected void runTestProfiled() throws Throwable { |
256 |
< |
// Warmup run, notably to trigger all needed classloading. |
257 |
< |
super.runTest(); |
189 |
< |
long t0 = System.nanoTime(); |
190 |
< |
try { |
256 |
> |
for (int i = 0; i < 2; i++) { |
257 |
> |
long startTime = System.nanoTime(); |
258 |
|
super.runTest(); |
259 |
< |
} finally { |
260 |
< |
long elapsedMillis = millisElapsedSince(t0); |
261 |
< |
if (elapsedMillis >= profileThreshold) |
259 |
> |
long elapsedMillis = millisElapsedSince(startTime); |
260 |
> |
if (elapsedMillis < profileThreshold) |
261 |
> |
break; |
262 |
> |
// Never report first run of any test; treat it as a |
263 |
> |
// warmup run, notably to trigger all needed classloading, |
264 |
> |
if (i > 0) |
265 |
|
System.out.printf("%n%s: %d%n", toString(), elapsedMillis); |
266 |
|
} |
267 |
|
} |
268 |
|
|
269 |
|
/** |
270 |
|
* Runs all JSR166 unit tests using junit.textui.TestRunner. |
201 |
– |
* Optional command line arg provides the number of iterations to |
202 |
– |
* repeat running the tests. |
271 |
|
*/ |
272 |
|
public static void main(String[] args) { |
273 |
+ |
main(suite(), args); |
274 |
+ |
} |
275 |
+ |
|
276 |
+ |
static class PithyResultPrinter extends junit.textui.ResultPrinter { |
277 |
+ |
PithyResultPrinter(java.io.PrintStream writer) { super(writer); } |
278 |
+ |
long runTime; |
279 |
+ |
public void startTest(Test test) {} |
280 |
+ |
protected void printHeader(long runTime) { |
281 |
+ |
this.runTime = runTime; // defer printing for later |
282 |
+ |
} |
283 |
+ |
protected void printFooter(TestResult result) { |
284 |
+ |
if (result.wasSuccessful()) { |
285 |
+ |
getWriter().println("OK (" + result.runCount() + " tests)" |
286 |
+ |
+ " Time: " + elapsedTimeAsString(runTime)); |
287 |
+ |
} else { |
288 |
+ |
getWriter().println("Time: " + elapsedTimeAsString(runTime)); |
289 |
+ |
super.printFooter(result); |
290 |
+ |
} |
291 |
+ |
} |
292 |
+ |
} |
293 |
+ |
|
294 |
+ |
/** |
295 |
+ |
* Returns a TestRunner that doesn't bother with unnecessary |
296 |
+ |
* fluff, like printing a "." for each test case. |
297 |
+ |
*/ |
298 |
+ |
static junit.textui.TestRunner newPithyTestRunner() { |
299 |
+ |
junit.textui.TestRunner runner = new junit.textui.TestRunner(); |
300 |
+ |
runner.setPrinter(new PithyResultPrinter(System.out)); |
301 |
+ |
return runner; |
302 |
+ |
} |
303 |
+ |
|
304 |
+ |
/** |
305 |
+ |
* Runs all unit tests in the given test suite. |
306 |
+ |
* Actual behavior influenced by jsr166.* system properties. |
307 |
+ |
*/ |
308 |
+ |
static void main(Test suite, String[] args) { |
309 |
|
if (useSecurityManager) { |
310 |
|
System.err.println("Setting a permissive security manager"); |
311 |
|
Policy.setPolicy(permissivePolicy()); |
312 |
|
System.setSecurityManager(new SecurityManager()); |
313 |
|
} |
314 |
< |
int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]); |
315 |
< |
|
316 |
< |
Test s = suite(); |
317 |
< |
for (int i = 0; i < iters; ++i) { |
214 |
< |
junit.textui.TestRunner.run(s); |
314 |
> |
for (int i = 0; i < suiteRuns; i++) { |
315 |
> |
TestResult result = newPithyTestRunner().doRun(suite); |
316 |
> |
if (!result.wasSuccessful()) |
317 |
> |
System.exit(1); |
318 |
|
System.gc(); |
319 |
|
System.runFinalization(); |
320 |
|
} |
218 |
– |
System.exit(0); |
321 |
|
} |
322 |
|
|
323 |
|
public static TestSuite newTestSuite(Object... suiteOrClasses) { |
368 |
|
public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; } |
369 |
|
public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; } |
370 |
|
public static boolean atLeastJava9() { |
371 |
< |
// As of 2014-05, java9 still uses 52.0 class file version |
372 |
< |
return JAVA_SPECIFICATION_VERSION.startsWith("1.9"); |
371 |
> |
return JAVA_CLASS_VERSION >= 53.0 |
372 |
> |
// As of 2015-09, java9 still uses 52.0 class file version |
373 |
> |
|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$"); |
374 |
> |
} |
375 |
> |
public static boolean atLeastJava10() { |
376 |
> |
return JAVA_CLASS_VERSION >= 54.0 |
377 |
> |
|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$"); |
378 |
|
} |
379 |
|
|
380 |
|
/** |
463 |
|
"LongAdderTest", |
464 |
|
"SplittableRandomTest", |
465 |
|
"StampedLockTest", |
466 |
+ |
"SubmissionPublisherTest", |
467 |
|
"ThreadLocalRandom8Test", |
468 |
|
}; |
469 |
|
addNamedTestClasses(suite, java8TestClassNames); |
472 |
|
// Java9+ test classes |
473 |
|
if (atLeastJava9()) { |
474 |
|
String[] java9TestClassNames = { |
475 |
< |
"ThreadPoolExecutor9Test", |
475 |
> |
// Currently empty, but expecting varhandle tests |
476 |
|
}; |
477 |
|
addNamedTestClasses(suite, java9TestClassNames); |
478 |
|
} |
480 |
|
return suite; |
481 |
|
} |
482 |
|
|
483 |
+ |
/** Returns list of junit-style test method names in given class. */ |
484 |
+ |
public static ArrayList<String> testMethodNames(Class<?> testClass) { |
485 |
+ |
Method[] methods = testClass.getDeclaredMethods(); |
486 |
+ |
ArrayList<String> names = new ArrayList<String>(methods.length); |
487 |
+ |
for (Method method : methods) { |
488 |
+ |
if (method.getName().startsWith("test") |
489 |
+ |
&& Modifier.isPublic(method.getModifiers()) |
490 |
+ |
// method.getParameterCount() requires jdk8+ |
491 |
+ |
&& method.getParameterTypes().length == 0) { |
492 |
+ |
names.add(method.getName()); |
493 |
+ |
} |
494 |
+ |
} |
495 |
+ |
return names; |
496 |
+ |
} |
497 |
+ |
|
498 |
+ |
/** |
499 |
+ |
* Returns junit-style testSuite for the given test class, but |
500 |
+ |
* parameterized by passing extra data to each test. |
501 |
+ |
*/ |
502 |
+ |
public static <ExtraData> Test parameterizedTestSuite |
503 |
+ |
(Class<? extends JSR166TestCase> testClass, |
504 |
+ |
Class<ExtraData> dataClass, |
505 |
+ |
ExtraData data) { |
506 |
+ |
try { |
507 |
+ |
TestSuite suite = new TestSuite(); |
508 |
+ |
Constructor c = |
509 |
+ |
testClass.getDeclaredConstructor(dataClass, String.class); |
510 |
+ |
for (String methodName : testMethodNames(testClass)) |
511 |
+ |
suite.addTest((Test) c.newInstance(data, methodName)); |
512 |
+ |
return suite; |
513 |
+ |
} catch (Exception e) { |
514 |
+ |
throw new Error(e); |
515 |
+ |
} |
516 |
+ |
} |
517 |
+ |
|
518 |
+ |
/** |
519 |
+ |
* Returns junit-style testSuite for the jdk8 extension of the |
520 |
+ |
* given test class, but parameterized by passing extra data to |
521 |
+ |
* each test. Uses reflection to allow compilation in jdk7. |
522 |
+ |
*/ |
523 |
+ |
public static <ExtraData> Test jdk8ParameterizedTestSuite |
524 |
+ |
(Class<? extends JSR166TestCase> testClass, |
525 |
+ |
Class<ExtraData> dataClass, |
526 |
+ |
ExtraData data) { |
527 |
+ |
if (atLeastJava8()) { |
528 |
+ |
String name = testClass.getName(); |
529 |
+ |
String name8 = name.replaceAll("Test$", "8Test"); |
530 |
+ |
if (name.equals(name8)) throw new Error(name); |
531 |
+ |
try { |
532 |
+ |
return (Test) |
533 |
+ |
Class.forName(name8) |
534 |
+ |
.getMethod("testSuite", new Class[] { dataClass }) |
535 |
+ |
.invoke(null, data); |
536 |
+ |
} catch (Exception e) { |
537 |
+ |
throw new Error(e); |
538 |
+ |
} |
539 |
+ |
} else { |
540 |
+ |
return new TestSuite(); |
541 |
+ |
} |
542 |
+ |
} |
543 |
+ |
|
544 |
|
// Delays for timing-dependent tests, in milliseconds. |
545 |
|
|
546 |
|
public static long SHORT_DELAY_MS; |
575 |
|
} |
576 |
|
|
577 |
|
/** |
578 |
< |
* Returns a new Date instance representing a time delayMillis |
579 |
< |
* milliseconds in the future. |
578 |
> |
* Returns a new Date instance representing a time at least |
579 |
> |
* delayMillis milliseconds in the future. |
580 |
|
*/ |
581 |
|
Date delayedDate(long delayMillis) { |
582 |
< |
return new Date(System.currentTimeMillis() + delayMillis); |
582 |
> |
// Add 1 because currentTimeMillis is known to round into the past. |
583 |
> |
return new Date(System.currentTimeMillis() + delayMillis + 1); |
584 |
|
} |
585 |
|
|
586 |
|
/** |
596 |
|
* the same test have no effect. |
597 |
|
*/ |
598 |
|
public void threadRecordFailure(Throwable t) { |
599 |
+ |
System.err.println(t); |
600 |
+ |
dumpTestThreads(); |
601 |
|
threadFailure.compareAndSet(null, t); |
602 |
|
} |
603 |
|
|
605 |
|
setDelays(); |
606 |
|
} |
607 |
|
|
608 |
+ |
void tearDownFail(String format, Object... args) { |
609 |
+ |
String msg = toString() + ": " + String.format(format, args); |
610 |
+ |
System.err.println(msg); |
611 |
+ |
dumpTestThreads(); |
612 |
+ |
throw new AssertionFailedError(msg); |
613 |
+ |
} |
614 |
+ |
|
615 |
|
/** |
616 |
|
* Extra checks that get done for all test cases. |
617 |
|
* |
639 |
|
} |
640 |
|
|
641 |
|
if (Thread.interrupted()) |
642 |
< |
throw new AssertionFailedError("interrupt status set in main thread"); |
642 |
> |
tearDownFail("interrupt status set in main thread"); |
643 |
|
|
644 |
|
checkForkJoinPoolThreadLeaks(); |
645 |
|
} |
646 |
|
|
647 |
|
/** |
648 |
< |
* Finds missing try { ... } finally { joinPool(e); } |
648 |
> |
* Finds missing PoolCleaners |
649 |
|
*/ |
650 |
|
void checkForkJoinPoolThreadLeaks() throws InterruptedException { |
651 |
< |
Thread[] survivors = new Thread[5]; |
651 |
> |
Thread[] survivors = new Thread[7]; |
652 |
|
int count = Thread.enumerate(survivors); |
653 |
|
for (int i = 0; i < count; i++) { |
654 |
|
Thread thread = survivors[i]; |
656 |
|
if (name.startsWith("ForkJoinPool-")) { |
657 |
|
// give thread some time to terminate |
658 |
|
thread.join(LONG_DELAY_MS); |
659 |
< |
if (!thread.isAlive()) continue; |
660 |
< |
thread.stop(); |
661 |
< |
throw new AssertionFailedError |
483 |
< |
(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n", |
484 |
< |
toString(), name)); |
659 |
> |
if (thread.isAlive()) |
660 |
> |
tearDownFail("Found leaked ForkJoinPool thread thread=%s", |
661 |
> |
thread); |
662 |
|
} |
663 |
|
} |
664 |
+ |
|
665 |
+ |
if (!ForkJoinPool.commonPool() |
666 |
+ |
.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS)) |
667 |
+ |
tearDownFail("ForkJoin common pool thread stuck"); |
668 |
|
} |
669 |
|
|
670 |
|
/** |
677 |
|
fail(reason); |
678 |
|
} catch (AssertionFailedError t) { |
679 |
|
threadRecordFailure(t); |
680 |
< |
fail(reason); |
680 |
> |
throw t; |
681 |
|
} |
682 |
|
} |
683 |
|
|
804 |
|
/** |
805 |
|
* Delays, via Thread.sleep, for the given millisecond delay, but |
806 |
|
* if the sleep is shorter than specified, may re-sleep or yield |
807 |
< |
* until time elapses. |
807 |
> |
* until time elapses. Ensures that the given time, as measured |
808 |
> |
* by System.nanoTime(), has elapsed. |
809 |
|
*/ |
810 |
|
static void delay(long millis) throws InterruptedException { |
811 |
< |
long startTime = System.nanoTime(); |
812 |
< |
long ns = millis * 1000 * 1000; |
813 |
< |
for (;;) { |
811 |
> |
long nanos = millis * (1000 * 1000); |
812 |
> |
final long wakeupTime = System.nanoTime() + nanos; |
813 |
> |
do { |
814 |
|
if (millis > 0L) |
815 |
|
Thread.sleep(millis); |
816 |
|
else // too short to sleep |
817 |
|
Thread.yield(); |
818 |
< |
long d = ns - (System.nanoTime() - startTime); |
819 |
< |
if (d > 0L) |
820 |
< |
millis = d / (1000 * 1000); |
821 |
< |
else |
822 |
< |
break; |
818 |
> |
nanos = wakeupTime - System.nanoTime(); |
819 |
> |
millis = nanos / (1000 * 1000); |
820 |
> |
} while (nanos >= 0L); |
821 |
> |
} |
822 |
> |
|
823 |
> |
/** |
824 |
> |
* Allows use of try-with-resources with per-test thread pools. |
825 |
> |
*/ |
826 |
> |
class PoolCleaner implements AutoCloseable { |
827 |
> |
private final ExecutorService pool; |
828 |
> |
public PoolCleaner(ExecutorService pool) { this.pool = pool; } |
829 |
> |
public void close() { joinPool(pool); } |
830 |
> |
} |
831 |
> |
|
832 |
> |
/** |
833 |
> |
* An extension of PoolCleaner that has an action to release the pool. |
834 |
> |
*/ |
835 |
> |
class PoolCleanerWithReleaser extends PoolCleaner { |
836 |
> |
private final Runnable releaser; |
837 |
> |
public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) { |
838 |
> |
super(pool); |
839 |
> |
this.releaser = releaser; |
840 |
|
} |
841 |
+ |
public void close() { |
842 |
+ |
try { |
843 |
+ |
releaser.run(); |
844 |
+ |
} finally { |
845 |
+ |
super.close(); |
846 |
+ |
} |
847 |
+ |
} |
848 |
+ |
} |
849 |
+ |
|
850 |
+ |
PoolCleaner cleaner(ExecutorService pool) { |
851 |
+ |
return new PoolCleaner(pool); |
852 |
+ |
} |
853 |
+ |
|
854 |
+ |
PoolCleaner cleaner(ExecutorService pool, Runnable releaser) { |
855 |
+ |
return new PoolCleanerWithReleaser(pool, releaser); |
856 |
+ |
} |
857 |
+ |
|
858 |
+ |
PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) { |
859 |
+ |
return new PoolCleanerWithReleaser(pool, releaser(latch)); |
860 |
+ |
} |
861 |
+ |
|
862 |
+ |
Runnable releaser(final CountDownLatch latch) { |
863 |
+ |
return new Runnable() { public void run() { |
864 |
+ |
do { latch.countDown(); } |
865 |
+ |
while (latch.getCount() > 0); |
866 |
+ |
}}; |
867 |
|
} |
868 |
|
|
869 |
|
/** |
870 |
|
* Waits out termination of a thread pool or fails doing so. |
871 |
|
*/ |
872 |
< |
void joinPool(ExecutorService exec) { |
872 |
> |
void joinPool(ExecutorService pool) { |
873 |
|
try { |
874 |
< |
exec.shutdown(); |
875 |
< |
if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) |
876 |
< |
fail("ExecutorService " + exec + |
877 |
< |
" did not terminate in a timely manner"); |
874 |
> |
pool.shutdown(); |
875 |
> |
if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) { |
876 |
> |
try { |
877 |
> |
threadFail("ExecutorService " + pool + |
878 |
> |
" did not terminate in a timely manner"); |
879 |
> |
} finally { |
880 |
> |
// last resort, for the benefit of subsequent tests |
881 |
> |
pool.shutdownNow(); |
882 |
> |
pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS); |
883 |
> |
} |
884 |
> |
} |
885 |
|
} catch (SecurityException ok) { |
886 |
|
// Allowed in case test doesn't have privs |
887 |
|
} catch (InterruptedException fail) { |
888 |
< |
fail("Unexpected InterruptedException"); |
888 |
> |
threadFail("Unexpected InterruptedException"); |
889 |
|
} |
890 |
|
} |
891 |
|
|
892 |
+ |
/** Like Runnable, but with the freedom to throw anything */ |
893 |
+ |
interface Action { public void run() throws Throwable; } |
894 |
+ |
|
895 |
|
/** |
896 |
< |
* A debugging tool to print all stack traces, as jstack does. |
896 |
> |
* Runs all the given actions in parallel, failing if any fail. |
897 |
> |
* Useful for running multiple variants of tests that are |
898 |
> |
* necessarily individually slow because they must block. |
899 |
|
*/ |
900 |
< |
static void printAllStackTraces() { |
901 |
< |
for (ThreadInfo info : |
902 |
< |
ManagementFactory.getThreadMXBean() |
903 |
< |
.dumpAllThreads(true, true)) |
900 |
> |
void testInParallel(Action ... actions) { |
901 |
> |
ExecutorService pool = Executors.newCachedThreadPool(); |
902 |
> |
try (PoolCleaner cleaner = cleaner(pool)) { |
903 |
> |
ArrayList<Future<?>> futures = new ArrayList<>(actions.length); |
904 |
> |
for (final Action action : actions) |
905 |
> |
futures.add(pool.submit(new CheckedRunnable() { |
906 |
> |
public void realRun() throws Throwable { action.run();}})); |
907 |
> |
for (Future<?> future : futures) |
908 |
> |
try { |
909 |
> |
assertNull(future.get(LONG_DELAY_MS, MILLISECONDS)); |
910 |
> |
} catch (ExecutionException ex) { |
911 |
> |
threadUnexpectedException(ex.getCause()); |
912 |
> |
} catch (Exception ex) { |
913 |
> |
threadUnexpectedException(ex); |
914 |
> |
} |
915 |
> |
} |
916 |
> |
} |
917 |
> |
|
918 |
> |
/** |
919 |
> |
* A debugging tool to print stack traces of most threads, as jstack does. |
920 |
> |
* Uninteresting threads are filtered out. |
921 |
> |
*/ |
922 |
> |
static void dumpTestThreads() { |
923 |
> |
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); |
924 |
> |
System.err.println("------ stacktrace dump start ------"); |
925 |
> |
for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) { |
926 |
> |
String name = info.getThreadName(); |
927 |
> |
if ("Signal Dispatcher".equals(name)) |
928 |
> |
continue; |
929 |
> |
if ("Reference Handler".equals(name) |
930 |
> |
&& info.getLockName().startsWith("java.lang.ref.Reference$Lock")) |
931 |
> |
continue; |
932 |
> |
if ("Finalizer".equals(name) |
933 |
> |
&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock")) |
934 |
> |
continue; |
935 |
> |
if ("checkForWedgedTest".equals(name)) |
936 |
> |
continue; |
937 |
|
System.err.print(info); |
938 |
+ |
} |
939 |
+ |
System.err.println("------ stacktrace dump end ------"); |
940 |
|
} |
941 |
|
|
942 |
|
/** |
956 |
|
delay(millis); |
957 |
|
assertTrue(thread.isAlive()); |
958 |
|
} catch (InterruptedException fail) { |
959 |
< |
fail("Unexpected InterruptedException"); |
959 |
> |
threadFail("Unexpected InterruptedException"); |
960 |
|
} |
961 |
|
} |
962 |
|
|
978 |
|
for (Thread thread : threads) |
979 |
|
assertTrue(thread.isAlive()); |
980 |
|
} catch (InterruptedException fail) { |
981 |
< |
fail("Unexpected InterruptedException"); |
981 |
> |
threadFail("Unexpected InterruptedException"); |
982 |
|
} |
983 |
|
} |
984 |
|
|
1256 |
|
} finally { |
1257 |
|
if (t.getState() != Thread.State.TERMINATED) { |
1258 |
|
t.interrupt(); |
1259 |
< |
fail("Test timed out"); |
1259 |
> |
threadFail("timed out waiting for thread to terminate"); |
1260 |
|
} |
1261 |
|
} |
1262 |
|
} |
1381 |
|
public static final String TEST_STRING = "a test string"; |
1382 |
|
|
1383 |
|
public static class StringTask implements Callable<String> { |
1384 |
< |
public String call() { return TEST_STRING; } |
1384 |
> |
final String value; |
1385 |
> |
public StringTask() { this(TEST_STRING); } |
1386 |
> |
public StringTask(String value) { this.value = value; } |
1387 |
> |
public String call() { return value; } |
1388 |
|
} |
1389 |
|
|
1390 |
|
public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) { |
1397 |
|
}}; |
1398 |
|
} |
1399 |
|
|
1400 |
< |
public Runnable awaiter(final CountDownLatch latch) { |
1400 |
> |
public Runnable countDowner(final CountDownLatch latch) { |
1401 |
|
return new CheckedRunnable() { |
1402 |
|
public void realRun() throws InterruptedException { |
1403 |
< |
await(latch); |
1403 |
> |
latch.countDown(); |
1404 |
|
}}; |
1405 |
|
} |
1406 |
|
|
1407 |
+ |
class LatchAwaiter extends CheckedRunnable { |
1408 |
+ |
static final int NEW = 0; |
1409 |
+ |
static final int RUNNING = 1; |
1410 |
+ |
static final int DONE = 2; |
1411 |
+ |
final CountDownLatch latch; |
1412 |
+ |
int state = NEW; |
1413 |
+ |
LatchAwaiter(CountDownLatch latch) { this.latch = latch; } |
1414 |
+ |
public void realRun() throws InterruptedException { |
1415 |
+ |
state = 1; |
1416 |
+ |
await(latch); |
1417 |
+ |
state = 2; |
1418 |
+ |
} |
1419 |
+ |
} |
1420 |
+ |
|
1421 |
+ |
public LatchAwaiter awaiter(CountDownLatch latch) { |
1422 |
+ |
return new LatchAwaiter(latch); |
1423 |
+ |
} |
1424 |
+ |
|
1425 |
|
public void await(CountDownLatch latch) { |
1426 |
|
try { |
1427 |
< |
assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS)); |
1427 |
> |
if (!latch.await(LONG_DELAY_MS, MILLISECONDS)) |
1428 |
> |
fail("timed out waiting for CountDownLatch for " |
1429 |
> |
+ (LONG_DELAY_MS/1000) + " sec"); |
1430 |
|
} catch (Throwable fail) { |
1431 |
|
threadUnexpectedException(fail); |
1432 |
|
} |
1434 |
|
|
1435 |
|
public void await(Semaphore semaphore) { |
1436 |
|
try { |
1437 |
< |
assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)); |
1437 |
> |
if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)) |
1438 |
> |
fail("timed out waiting for Semaphore for " |
1439 |
> |
+ (LONG_DELAY_MS/1000) + " sec"); |
1440 |
|
} catch (Throwable fail) { |
1441 |
|
threadUnexpectedException(fail); |
1442 |
|
} |