| 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; |
| 61 |
|
import java.util.concurrent.ThreadFactory; |
| 62 |
|
import java.util.concurrent.ThreadPoolExecutor; |
| 63 |
|
import java.util.concurrent.TimeoutException; |
| 64 |
+ |
import java.util.concurrent.atomic.AtomicBoolean; |
| 65 |
|
import java.util.concurrent.atomic.AtomicReference; |
| 66 |
+ |
import java.util.regex.Matcher; |
| 67 |
|
import java.util.regex.Pattern; |
| 68 |
|
|
| 69 |
|
import junit.framework.AssertionFailedError; |
| 82 |
|
* |
| 83 |
|
* <ol> |
| 84 |
|
* |
| 85 |
< |
* <li> All assertions in code running in generated threads must use |
| 85 |
> |
* <li>All assertions in code running in generated threads must use |
| 86 |
|
* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link |
| 87 |
|
* #threadAssertEquals}, or {@link #threadAssertNull}, (not |
| 88 |
|
* {@code fail}, {@code assertTrue}, etc.) It is OK (but not |
| 89 |
|
* particularly recommended) for other code to use these forms too. |
| 90 |
|
* Only the most typically used JUnit assertion methods are defined |
| 91 |
< |
* this way, but enough to live with.</li> |
| 91 |
> |
* this way, but enough to live with. |
| 92 |
|
* |
| 93 |
< |
* <li> If you override {@link #setUp} or {@link #tearDown}, make sure |
| 93 |
> |
* <li>If you override {@link #setUp} or {@link #tearDown}, make sure |
| 94 |
|
* to invoke {@code super.setUp} and {@code super.tearDown} within |
| 95 |
|
* them. These methods are used to clear and check for thread |
| 96 |
< |
* assertion failures.</li> |
| 96 |
> |
* assertion failures. |
| 97 |
|
* |
| 98 |
|
* <li>All delays and timeouts must use one of the constants {@code |
| 99 |
|
* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS}, |
| 104 |
|
* is always discriminable as larger than SHORT and smaller than |
| 105 |
|
* MEDIUM. And so on. These constants are set to conservative values, |
| 106 |
|
* but even so, if there is ever any doubt, they can all be increased |
| 107 |
< |
* in one spot to rerun tests on slower platforms.</li> |
| 107 |
> |
* in one spot to rerun tests on slower platforms. |
| 108 |
|
* |
| 109 |
< |
* <li> All threads generated must be joined inside each test case |
| 109 |
> |
* <li>All threads generated must be joined inside each test case |
| 110 |
|
* method (or {@code fail} to do so) before returning from the |
| 111 |
|
* method. The {@code joinPool} method can be used to do this when |
| 112 |
< |
* using Executors.</li> |
| 112 |
> |
* using Executors. |
| 113 |
|
* |
| 114 |
|
* </ol> |
| 115 |
|
* |
| 116 |
|
* <p><b>Other notes</b> |
| 117 |
|
* <ul> |
| 118 |
|
* |
| 119 |
< |
* <li> Usually, there is one testcase method per JSR166 method |
| 119 |
> |
* <li>Usually, there is one testcase method per JSR166 method |
| 120 |
|
* covering "normal" operation, and then as many exception-testing |
| 121 |
|
* methods as there are exceptions the method can throw. Sometimes |
| 122 |
|
* there are multiple tests per JSR166 method when the different |
| 123 |
|
* "normal" behaviors differ significantly. And sometimes testcases |
| 124 |
< |
* cover multiple methods when they cannot be tested in |
| 108 |
< |
* isolation.</li> |
| 124 |
> |
* cover multiple methods when they cannot be tested in isolation. |
| 125 |
|
* |
| 126 |
< |
* <li> The documentation style for testcases is to provide as javadoc |
| 126 |
> |
* <li>The documentation style for testcases is to provide as javadoc |
| 127 |
|
* a simple sentence or two describing the property that the testcase |
| 128 |
|
* method purports to test. The javadocs do not say anything about how |
| 129 |
< |
* the property is tested. To find out, read the code.</li> |
| 129 |
> |
* the property is tested. To find out, read the code. |
| 130 |
|
* |
| 131 |
< |
* <li> These tests are "conformance tests", and do not attempt to |
| 131 |
> |
* <li>These tests are "conformance tests", and do not attempt to |
| 132 |
|
* test throughput, latency, scalability or other performance factors |
| 133 |
|
* (see the separate "jtreg" tests for a set intended to check these |
| 134 |
|
* for the most central aspects of functionality.) So, most tests use |
| 135 |
|
* the smallest sensible numbers of threads, collection sizes, etc |
| 136 |
< |
* needed to check basic conformance.</li> |
| 136 |
> |
* needed to check basic conformance. |
| 137 |
|
* |
| 138 |
|
* <li>The test classes currently do not declare inclusion in |
| 139 |
|
* any particular package to simplify things for people integrating |
| 140 |
< |
* them in TCK test suites.</li> |
| 140 |
> |
* them in TCK test suites. |
| 141 |
|
* |
| 142 |
< |
* <li> As a convenience, the {@code main} of this class (JSR166TestCase) |
| 143 |
< |
* runs all JSR166 unit tests.</li> |
| 142 |
> |
* <li>As a convenience, the {@code main} of this class (JSR166TestCase) |
| 143 |
> |
* runs all JSR166 unit tests. |
| 144 |
|
* |
| 145 |
|
* </ul> |
| 146 |
|
*/ |
| 184 |
|
private static final int suiteRuns = |
| 185 |
|
Integer.getInteger("jsr166.suiteRuns", 1); |
| 186 |
|
|
| 187 |
+ |
private static float systemPropertyValue(String name, float defaultValue) { |
| 188 |
+ |
String floatString = System.getProperty(name); |
| 189 |
+ |
if (floatString == null) |
| 190 |
+ |
return defaultValue; |
| 191 |
+ |
try { |
| 192 |
+ |
return Float.parseFloat(floatString); |
| 193 |
+ |
} catch (NumberFormatException ex) { |
| 194 |
+ |
throw new IllegalArgumentException( |
| 195 |
+ |
String.format("Bad float value in system property %s=%s", |
| 196 |
+ |
name, floatString)); |
| 197 |
+ |
} |
| 198 |
+ |
} |
| 199 |
+ |
|
| 200 |
+ |
/** |
| 201 |
+ |
* The scaling factor to apply to standard delays used in tests. |
| 202 |
+ |
*/ |
| 203 |
+ |
private static final float delayFactor = |
| 204 |
+ |
systemPropertyValue("jsr166.delay.factor", 1.0f); |
| 205 |
+ |
|
| 206 |
+ |
/** |
| 207 |
+ |
* The timeout factor as used in the jtreg test harness. |
| 208 |
+ |
* See: http://openjdk.java.net/jtreg/tag-spec.html |
| 209 |
+ |
*/ |
| 210 |
+ |
private static final float jtregTestTimeoutFactor |
| 211 |
+ |
= systemPropertyValue("test.timeout.factor", 1.0f); |
| 212 |
+ |
|
| 213 |
|
public JSR166TestCase() { super(); } |
| 214 |
|
public JSR166TestCase(String name) { super(name); } |
| 215 |
|
|
| 225 |
|
return (regex == null) ? null : Pattern.compile(regex); |
| 226 |
|
} |
| 227 |
|
|
| 228 |
< |
protected void runTest() throws Throwable { |
| 228 |
> |
// Instrumentation to debug very rare, but very annoying hung test runs. |
| 229 |
> |
static volatile TestCase currentTestCase; |
| 230 |
> |
// static volatile int currentRun = 0; |
| 231 |
> |
static { |
| 232 |
> |
Runnable checkForWedgedTest = new Runnable() { public void run() { |
| 233 |
> |
// Avoid spurious reports with enormous runsPerTest. |
| 234 |
> |
// A single test case run should never take more than 1 second. |
| 235 |
> |
// But let's cap it at the high end too ... |
| 236 |
> |
final int timeoutMinutes = |
| 237 |
> |
Math.min(15, Math.max(runsPerTest / 60, 1)); |
| 238 |
> |
for (TestCase lastTestCase = currentTestCase;;) { |
| 239 |
> |
try { MINUTES.sleep(timeoutMinutes); } |
| 240 |
> |
catch (InterruptedException unexpected) { break; } |
| 241 |
> |
if (lastTestCase == currentTestCase) { |
| 242 |
> |
System.err.printf( |
| 243 |
> |
"Looks like we're stuck running test: %s%n", |
| 244 |
> |
lastTestCase); |
| 245 |
> |
// System.err.printf( |
| 246 |
> |
// "Looks like we're stuck running test: %s (%d/%d)%n", |
| 247 |
> |
// lastTestCase, currentRun, runsPerTest); |
| 248 |
> |
// System.err.println("availableProcessors=" + |
| 249 |
> |
// Runtime.getRuntime().availableProcessors()); |
| 250 |
> |
// System.err.printf("cpu model = %s%n", cpuModel()); |
| 251 |
> |
dumpTestThreads(); |
| 252 |
> |
// one stack dump is probably enough; more would be spam |
| 253 |
> |
break; |
| 254 |
> |
} |
| 255 |
> |
lastTestCase = currentTestCase; |
| 256 |
> |
}}}; |
| 257 |
> |
Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest"); |
| 258 |
> |
thread.setDaemon(true); |
| 259 |
> |
thread.start(); |
| 260 |
> |
} |
| 261 |
> |
|
| 262 |
> |
// public static String cpuModel() { |
| 263 |
> |
// try { |
| 264 |
> |
// Matcher matcher = Pattern.compile("model name\\s*: (.*)") |
| 265 |
> |
// .matcher(new String( |
| 266 |
> |
// Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8")); |
| 267 |
> |
// matcher.find(); |
| 268 |
> |
// return matcher.group(1); |
| 269 |
> |
// } catch (Exception ex) { return null; } |
| 270 |
> |
// } |
| 271 |
> |
|
| 272 |
> |
public void runBare() throws Throwable { |
| 273 |
> |
currentTestCase = this; |
| 274 |
|
if (methodFilter == null |
| 275 |
< |
|| methodFilter.matcher(toString()).find()) { |
| 276 |
< |
for (int i = 0; i < runsPerTest; i++) { |
| 277 |
< |
if (profileTests) |
| 278 |
< |
runTestProfiled(); |
| 279 |
< |
else |
| 280 |
< |
super.runTest(); |
| 281 |
< |
} |
| 275 |
> |
|| methodFilter.matcher(toString()).find()) |
| 276 |
> |
super.runBare(); |
| 277 |
> |
} |
| 278 |
> |
|
| 279 |
> |
protected void runTest() throws Throwable { |
| 280 |
> |
for (int i = 0; i < runsPerTest; i++) { |
| 281 |
> |
// currentRun = i; |
| 282 |
> |
if (profileTests) |
| 283 |
> |
runTestProfiled(); |
| 284 |
> |
else |
| 285 |
> |
super.runTest(); |
| 286 |
|
} |
| 287 |
|
} |
| 288 |
|
|
| 289 |
|
protected void runTestProfiled() throws Throwable { |
| 290 |
< |
// Warmup run, notably to trigger all needed classloading. |
| 291 |
< |
super.runTest(); |
| 201 |
< |
long t0 = System.nanoTime(); |
| 202 |
< |
try { |
| 290 |
> |
for (int i = 0; i < 2; i++) { |
| 291 |
> |
long startTime = System.nanoTime(); |
| 292 |
|
super.runTest(); |
| 293 |
< |
} finally { |
| 294 |
< |
long elapsedMillis = millisElapsedSince(t0); |
| 295 |
< |
if (elapsedMillis >= profileThreshold) |
| 293 |
> |
long elapsedMillis = millisElapsedSince(startTime); |
| 294 |
> |
if (elapsedMillis < profileThreshold) |
| 295 |
> |
break; |
| 296 |
> |
// Never report first run of any test; treat it as a |
| 297 |
> |
// warmup run, notably to trigger all needed classloading, |
| 298 |
> |
if (i > 0) |
| 299 |
|
System.out.printf("%n%s: %d%n", toString(), elapsedMillis); |
| 300 |
|
} |
| 301 |
|
} |
| 307 |
|
main(suite(), args); |
| 308 |
|
} |
| 309 |
|
|
| 310 |
+ |
static class PithyResultPrinter extends junit.textui.ResultPrinter { |
| 311 |
+ |
PithyResultPrinter(java.io.PrintStream writer) { super(writer); } |
| 312 |
+ |
long runTime; |
| 313 |
+ |
public void startTest(Test test) {} |
| 314 |
+ |
protected void printHeader(long runTime) { |
| 315 |
+ |
this.runTime = runTime; // defer printing for later |
| 316 |
+ |
} |
| 317 |
+ |
protected void printFooter(TestResult result) { |
| 318 |
+ |
if (result.wasSuccessful()) { |
| 319 |
+ |
getWriter().println("OK (" + result.runCount() + " tests)" |
| 320 |
+ |
+ " Time: " + elapsedTimeAsString(runTime)); |
| 321 |
+ |
} else { |
| 322 |
+ |
getWriter().println("Time: " + elapsedTimeAsString(runTime)); |
| 323 |
+ |
super.printFooter(result); |
| 324 |
+ |
} |
| 325 |
+ |
} |
| 326 |
+ |
} |
| 327 |
+ |
|
| 328 |
+ |
/** |
| 329 |
+ |
* Returns a TestRunner that doesn't bother with unnecessary |
| 330 |
+ |
* fluff, like printing a "." for each test case. |
| 331 |
+ |
*/ |
| 332 |
+ |
static junit.textui.TestRunner newPithyTestRunner() { |
| 333 |
+ |
junit.textui.TestRunner runner = new junit.textui.TestRunner(); |
| 334 |
+ |
runner.setPrinter(new PithyResultPrinter(System.out)); |
| 335 |
+ |
return runner; |
| 336 |
+ |
} |
| 337 |
+ |
|
| 338 |
|
/** |
| 339 |
|
* Runs all unit tests in the given test suite. |
| 340 |
|
* Actual behavior influenced by jsr166.* system properties. |
| 346 |
|
System.setSecurityManager(new SecurityManager()); |
| 347 |
|
} |
| 348 |
|
for (int i = 0; i < suiteRuns; i++) { |
| 349 |
< |
TestResult result = junit.textui.TestRunner.run(suite); |
| 349 |
> |
TestResult result = newPithyTestRunner().doRun(suite); |
| 350 |
|
if (!result.wasSuccessful()) |
| 351 |
|
System.exit(1); |
| 352 |
|
System.gc(); |
| 401 |
|
public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; } |
| 402 |
|
public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; } |
| 403 |
|
public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; } |
| 404 |
< |
public static boolean atLeastJava9() { return JAVA_CLASS_VERSION >= 53.0; } |
| 404 |
> |
public static boolean atLeastJava9() { |
| 405 |
> |
return JAVA_CLASS_VERSION >= 53.0 |
| 406 |
> |
// As of 2015-09, java9 still uses 52.0 class file version |
| 407 |
> |
|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$"); |
| 408 |
> |
} |
| 409 |
> |
public static boolean atLeastJava10() { |
| 410 |
> |
return JAVA_CLASS_VERSION >= 54.0 |
| 411 |
> |
|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$"); |
| 412 |
> |
} |
| 413 |
|
|
| 414 |
|
/** |
| 415 |
|
* Collects all JSR166 unit tests as one suite. |
| 497 |
|
"LongAdderTest", |
| 498 |
|
"SplittableRandomTest", |
| 499 |
|
"StampedLockTest", |
| 500 |
+ |
"SubmissionPublisherTest", |
| 501 |
|
"ThreadLocalRandom8Test", |
| 502 |
|
}; |
| 503 |
|
addNamedTestClasses(suite, java8TestClassNames); |
| 506 |
|
// Java9+ test classes |
| 507 |
|
if (atLeastJava9()) { |
| 508 |
|
String[] java9TestClassNames = { |
| 509 |
< |
"ThreadPoolExecutor9Test", |
| 509 |
> |
// Currently empty, but expecting varhandle tests |
| 510 |
|
}; |
| 511 |
|
addNamedTestClasses(suite, java9TestClassNames); |
| 512 |
|
} |
| 573 |
|
} else { |
| 574 |
|
return new TestSuite(); |
| 575 |
|
} |
| 447 |
– |
|
| 576 |
|
} |
| 577 |
|
|
| 578 |
|
// Delays for timing-dependent tests, in milliseconds. |
| 583 |
|
public static long LONG_DELAY_MS; |
| 584 |
|
|
| 585 |
|
/** |
| 586 |
< |
* Returns the shortest timed delay. This could |
| 587 |
< |
* be reimplemented to use for example a Property. |
| 586 |
> |
* Returns the shortest timed delay. This can be scaled up for |
| 587 |
> |
* slow machines using the jsr166.delay.factor system property, |
| 588 |
> |
* or via jtreg's -timeoutFactor: flag. |
| 589 |
> |
* http://openjdk.java.net/jtreg/command-help.html |
| 590 |
|
*/ |
| 591 |
|
protected long getShortDelay() { |
| 592 |
< |
return 50; |
| 592 |
> |
return (long) (50 * delayFactor * jtregTestTimeoutFactor); |
| 593 |
|
} |
| 594 |
|
|
| 595 |
|
/** |
| 611 |
|
} |
| 612 |
|
|
| 613 |
|
/** |
| 614 |
< |
* Returns a new Date instance representing a time delayMillis |
| 615 |
< |
* milliseconds in the future. |
| 614 |
> |
* Returns a new Date instance representing a time at least |
| 615 |
> |
* delayMillis milliseconds in the future. |
| 616 |
|
*/ |
| 617 |
|
Date delayedDate(long delayMillis) { |
| 618 |
< |
return new Date(System.currentTimeMillis() + delayMillis); |
| 618 |
> |
// Add 1 because currentTimeMillis is known to round into the past. |
| 619 |
> |
return new Date(System.currentTimeMillis() + delayMillis + 1); |
| 620 |
|
} |
| 621 |
|
|
| 622 |
|
/** |
| 632 |
|
* the same test have no effect. |
| 633 |
|
*/ |
| 634 |
|
public void threadRecordFailure(Throwable t) { |
| 635 |
+ |
System.err.println(t); |
| 636 |
+ |
dumpTestThreads(); |
| 637 |
|
threadFailure.compareAndSet(null, t); |
| 638 |
|
} |
| 639 |
|
|
| 641 |
|
setDelays(); |
| 642 |
|
} |
| 643 |
|
|
| 644 |
+ |
void tearDownFail(String format, Object... args) { |
| 645 |
+ |
String msg = toString() + ": " + String.format(format, args); |
| 646 |
+ |
System.err.println(msg); |
| 647 |
+ |
dumpTestThreads(); |
| 648 |
+ |
throw new AssertionFailedError(msg); |
| 649 |
+ |
} |
| 650 |
+ |
|
| 651 |
|
/** |
| 652 |
|
* Extra checks that get done for all test cases. |
| 653 |
|
* |
| 675 |
|
} |
| 676 |
|
|
| 677 |
|
if (Thread.interrupted()) |
| 678 |
< |
throw new AssertionFailedError("interrupt status set in main thread"); |
| 678 |
> |
tearDownFail("interrupt status set in main thread"); |
| 679 |
|
|
| 680 |
|
checkForkJoinPoolThreadLeaks(); |
| 681 |
|
} |
| 682 |
|
|
| 683 |
|
/** |
| 684 |
< |
* Finds missing try { ... } finally { joinPool(e); } |
| 684 |
> |
* Finds missing PoolCleaners |
| 685 |
|
*/ |
| 686 |
|
void checkForkJoinPoolThreadLeaks() throws InterruptedException { |
| 687 |
< |
Thread[] survivors = new Thread[5]; |
| 687 |
> |
Thread[] survivors = new Thread[7]; |
| 688 |
|
int count = Thread.enumerate(survivors); |
| 689 |
|
for (int i = 0; i < count; i++) { |
| 690 |
|
Thread thread = survivors[i]; |
| 692 |
|
if (name.startsWith("ForkJoinPool-")) { |
| 693 |
|
// give thread some time to terminate |
| 694 |
|
thread.join(LONG_DELAY_MS); |
| 695 |
< |
if (!thread.isAlive()) continue; |
| 696 |
< |
throw new AssertionFailedError |
| 697 |
< |
(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n", |
| 558 |
< |
toString(), name)); |
| 695 |
> |
if (thread.isAlive()) |
| 696 |
> |
tearDownFail("Found leaked ForkJoinPool thread thread=%s", |
| 697 |
> |
thread); |
| 698 |
|
} |
| 699 |
|
} |
| 700 |
+ |
|
| 701 |
+ |
if (!ForkJoinPool.commonPool() |
| 702 |
+ |
.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS)) |
| 703 |
+ |
tearDownFail("ForkJoin common pool thread stuck"); |
| 704 |
|
} |
| 705 |
|
|
| 706 |
|
/** |
| 713 |
|
fail(reason); |
| 714 |
|
} catch (AssertionFailedError t) { |
| 715 |
|
threadRecordFailure(t); |
| 716 |
< |
fail(reason); |
| 716 |
> |
throw t; |
| 717 |
|
} |
| 718 |
|
} |
| 719 |
|
|
| 840 |
|
/** |
| 841 |
|
* Delays, via Thread.sleep, for the given millisecond delay, but |
| 842 |
|
* if the sleep is shorter than specified, may re-sleep or yield |
| 843 |
< |
* until time elapses. |
| 843 |
> |
* until time elapses. Ensures that the given time, as measured |
| 844 |
> |
* by System.nanoTime(), has elapsed. |
| 845 |
|
*/ |
| 846 |
|
static void delay(long millis) throws InterruptedException { |
| 847 |
< |
long startTime = System.nanoTime(); |
| 848 |
< |
long ns = millis * 1000 * 1000; |
| 849 |
< |
for (;;) { |
| 847 |
> |
long nanos = millis * (1000 * 1000); |
| 848 |
> |
final long wakeupTime = System.nanoTime() + nanos; |
| 849 |
> |
do { |
| 850 |
|
if (millis > 0L) |
| 851 |
|
Thread.sleep(millis); |
| 852 |
|
else // too short to sleep |
| 853 |
|
Thread.yield(); |
| 854 |
< |
long d = ns - (System.nanoTime() - startTime); |
| 855 |
< |
if (d > 0L) |
| 856 |
< |
millis = d / (1000 * 1000); |
| 857 |
< |
else |
| 858 |
< |
break; |
| 854 |
> |
nanos = wakeupTime - System.nanoTime(); |
| 855 |
> |
millis = nanos / (1000 * 1000); |
| 856 |
> |
} while (nanos >= 0L); |
| 857 |
> |
} |
| 858 |
> |
|
| 859 |
> |
/** |
| 860 |
> |
* Allows use of try-with-resources with per-test thread pools. |
| 861 |
> |
*/ |
| 862 |
> |
class PoolCleaner implements AutoCloseable { |
| 863 |
> |
private final ExecutorService pool; |
| 864 |
> |
public PoolCleaner(ExecutorService pool) { this.pool = pool; } |
| 865 |
> |
public void close() { joinPool(pool); } |
| 866 |
> |
} |
| 867 |
> |
|
| 868 |
> |
/** |
| 869 |
> |
* An extension of PoolCleaner that has an action to release the pool. |
| 870 |
> |
*/ |
| 871 |
> |
class PoolCleanerWithReleaser extends PoolCleaner { |
| 872 |
> |
private final Runnable releaser; |
| 873 |
> |
public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) { |
| 874 |
> |
super(pool); |
| 875 |
> |
this.releaser = releaser; |
| 876 |
> |
} |
| 877 |
> |
public void close() { |
| 878 |
> |
try { |
| 879 |
> |
releaser.run(); |
| 880 |
> |
} finally { |
| 881 |
> |
super.close(); |
| 882 |
> |
} |
| 883 |
|
} |
| 884 |
|
} |
| 885 |
|
|
| 886 |
+ |
PoolCleaner cleaner(ExecutorService pool) { |
| 887 |
+ |
return new PoolCleaner(pool); |
| 888 |
+ |
} |
| 889 |
+ |
|
| 890 |
+ |
PoolCleaner cleaner(ExecutorService pool, Runnable releaser) { |
| 891 |
+ |
return new PoolCleanerWithReleaser(pool, releaser); |
| 892 |
+ |
} |
| 893 |
+ |
|
| 894 |
+ |
PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) { |
| 895 |
+ |
return new PoolCleanerWithReleaser(pool, releaser(latch)); |
| 896 |
+ |
} |
| 897 |
+ |
|
| 898 |
+ |
Runnable releaser(final CountDownLatch latch) { |
| 899 |
+ |
return new Runnable() { public void run() { |
| 900 |
+ |
do { latch.countDown(); } |
| 901 |
+ |
while (latch.getCount() > 0); |
| 902 |
+ |
}}; |
| 903 |
+ |
} |
| 904 |
+ |
|
| 905 |
+ |
PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) { |
| 906 |
+ |
return new PoolCleanerWithReleaser(pool, releaser(flag)); |
| 907 |
+ |
} |
| 908 |
+ |
|
| 909 |
+ |
Runnable releaser(final AtomicBoolean flag) { |
| 910 |
+ |
return new Runnable() { public void run() { flag.set(true); }}; |
| 911 |
+ |
} |
| 912 |
+ |
|
| 913 |
|
/** |
| 914 |
|
* Waits out termination of a thread pool or fails doing so. |
| 915 |
|
*/ |
| 916 |
< |
void joinPool(ExecutorService exec) { |
| 916 |
> |
void joinPool(ExecutorService pool) { |
| 917 |
|
try { |
| 918 |
< |
exec.shutdown(); |
| 919 |
< |
if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) |
| 920 |
< |
fail("ExecutorService " + exec + |
| 921 |
< |
" did not terminate in a timely manner"); |
| 918 |
> |
pool.shutdown(); |
| 919 |
> |
if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) { |
| 920 |
> |
try { |
| 921 |
> |
threadFail("ExecutorService " + pool + |
| 922 |
> |
" did not terminate in a timely manner"); |
| 923 |
> |
} finally { |
| 924 |
> |
// last resort, for the benefit of subsequent tests |
| 925 |
> |
pool.shutdownNow(); |
| 926 |
> |
pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS); |
| 927 |
> |
} |
| 928 |
> |
} |
| 929 |
|
} catch (SecurityException ok) { |
| 930 |
|
// Allowed in case test doesn't have privs |
| 931 |
|
} catch (InterruptedException fail) { |
| 932 |
< |
fail("Unexpected InterruptedException"); |
| 932 |
> |
threadFail("Unexpected InterruptedException"); |
| 933 |
|
} |
| 934 |
|
} |
| 935 |
|
|
| 936 |
+ |
/** Like Runnable, but with the freedom to throw anything */ |
| 937 |
+ |
interface Action { public void run() throws Throwable; } |
| 938 |
+ |
|
| 939 |
|
/** |
| 940 |
< |
* A debugging tool to print all stack traces, as jstack does. |
| 940 |
> |
* Runs all the given actions in parallel, failing if any fail. |
| 941 |
> |
* Useful for running multiple variants of tests that are |
| 942 |
> |
* necessarily individually slow because they must block. |
| 943 |
|
*/ |
| 944 |
< |
static void printAllStackTraces() { |
| 945 |
< |
for (ThreadInfo info : |
| 946 |
< |
ManagementFactory.getThreadMXBean() |
| 947 |
< |
.dumpAllThreads(true, true)) |
| 944 |
> |
void testInParallel(Action ... actions) { |
| 945 |
> |
ExecutorService pool = Executors.newCachedThreadPool(); |
| 946 |
> |
try (PoolCleaner cleaner = cleaner(pool)) { |
| 947 |
> |
ArrayList<Future<?>> futures = new ArrayList<>(actions.length); |
| 948 |
> |
for (final Action action : actions) |
| 949 |
> |
futures.add(pool.submit(new CheckedRunnable() { |
| 950 |
> |
public void realRun() throws Throwable { action.run();}})); |
| 951 |
> |
for (Future<?> future : futures) |
| 952 |
> |
try { |
| 953 |
> |
assertNull(future.get(LONG_DELAY_MS, MILLISECONDS)); |
| 954 |
> |
} catch (ExecutionException ex) { |
| 955 |
> |
threadUnexpectedException(ex.getCause()); |
| 956 |
> |
} catch (Exception ex) { |
| 957 |
> |
threadUnexpectedException(ex); |
| 958 |
> |
} |
| 959 |
> |
} |
| 960 |
> |
} |
| 961 |
> |
|
| 962 |
> |
/** |
| 963 |
> |
* A debugging tool to print stack traces of most threads, as jstack does. |
| 964 |
> |
* Uninteresting threads are filtered out. |
| 965 |
> |
*/ |
| 966 |
> |
static void dumpTestThreads() { |
| 967 |
> |
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); |
| 968 |
> |
System.err.println("------ stacktrace dump start ------"); |
| 969 |
> |
for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) { |
| 970 |
> |
String name = info.getThreadName(); |
| 971 |
> |
if ("Signal Dispatcher".equals(name)) |
| 972 |
> |
continue; |
| 973 |
> |
if ("Reference Handler".equals(name) |
| 974 |
> |
&& info.getLockName().startsWith("java.lang.ref.Reference$Lock")) |
| 975 |
> |
continue; |
| 976 |
> |
if ("Finalizer".equals(name) |
| 977 |
> |
&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock")) |
| 978 |
> |
continue; |
| 979 |
> |
if ("checkForWedgedTest".equals(name)) |
| 980 |
> |
continue; |
| 981 |
|
System.err.print(info); |
| 982 |
+ |
} |
| 983 |
+ |
System.err.println("------ stacktrace dump end ------"); |
| 984 |
|
} |
| 985 |
|
|
| 986 |
|
/** |
| 1000 |
|
delay(millis); |
| 1001 |
|
assertTrue(thread.isAlive()); |
| 1002 |
|
} catch (InterruptedException fail) { |
| 1003 |
< |
fail("Unexpected InterruptedException"); |
| 1003 |
> |
threadFail("Unexpected InterruptedException"); |
| 1004 |
|
} |
| 1005 |
|
} |
| 1006 |
|
|
| 1022 |
|
for (Thread thread : threads) |
| 1023 |
|
assertTrue(thread.isAlive()); |
| 1024 |
|
} catch (InterruptedException fail) { |
| 1025 |
< |
fail("Unexpected InterruptedException"); |
| 1025 |
> |
threadFail("Unexpected InterruptedException"); |
| 1026 |
|
} |
| 1027 |
|
} |
| 1028 |
|
|
| 1300 |
|
} finally { |
| 1301 |
|
if (t.getState() != Thread.State.TERMINATED) { |
| 1302 |
|
t.interrupt(); |
| 1303 |
< |
fail("Test timed out"); |
| 1303 |
> |
threadFail("timed out waiting for thread to terminate"); |
| 1304 |
|
} |
| 1305 |
|
} |
| 1306 |
|
} |
| 1425 |
|
public static final String TEST_STRING = "a test string"; |
| 1426 |
|
|
| 1427 |
|
public static class StringTask implements Callable<String> { |
| 1428 |
< |
public String call() { return TEST_STRING; } |
| 1428 |
> |
final String value; |
| 1429 |
> |
public StringTask() { this(TEST_STRING); } |
| 1430 |
> |
public StringTask(String value) { this.value = value; } |
| 1431 |
> |
public String call() { return value; } |
| 1432 |
|
} |
| 1433 |
|
|
| 1434 |
|
public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) { |
| 1441 |
|
}}; |
| 1442 |
|
} |
| 1443 |
|
|
| 1444 |
< |
public Runnable awaiter(final CountDownLatch latch) { |
| 1444 |
> |
public Runnable countDowner(final CountDownLatch latch) { |
| 1445 |
|
return new CheckedRunnable() { |
| 1446 |
|
public void realRun() throws InterruptedException { |
| 1447 |
< |
await(latch); |
| 1447 |
> |
latch.countDown(); |
| 1448 |
|
}}; |
| 1449 |
|
} |
| 1450 |
|
|
| 1451 |
< |
public void await(CountDownLatch latch) { |
| 1451 |
> |
class LatchAwaiter extends CheckedRunnable { |
| 1452 |
> |
static final int NEW = 0; |
| 1453 |
> |
static final int RUNNING = 1; |
| 1454 |
> |
static final int DONE = 2; |
| 1455 |
> |
final CountDownLatch latch; |
| 1456 |
> |
int state = NEW; |
| 1457 |
> |
LatchAwaiter(CountDownLatch latch) { this.latch = latch; } |
| 1458 |
> |
public void realRun() throws InterruptedException { |
| 1459 |
> |
state = 1; |
| 1460 |
> |
await(latch); |
| 1461 |
> |
state = 2; |
| 1462 |
> |
} |
| 1463 |
> |
} |
| 1464 |
> |
|
| 1465 |
> |
public LatchAwaiter awaiter(CountDownLatch latch) { |
| 1466 |
> |
return new LatchAwaiter(latch); |
| 1467 |
> |
} |
| 1468 |
> |
|
| 1469 |
> |
public void await(CountDownLatch latch, long timeoutMillis) { |
| 1470 |
|
try { |
| 1471 |
< |
assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS)); |
| 1471 |
> |
if (!latch.await(timeoutMillis, MILLISECONDS)) |
| 1472 |
> |
fail("timed out waiting for CountDownLatch for " |
| 1473 |
> |
+ (timeoutMillis/1000) + " sec"); |
| 1474 |
|
} catch (Throwable fail) { |
| 1475 |
|
threadUnexpectedException(fail); |
| 1476 |
|
} |
| 1477 |
|
} |
| 1478 |
|
|
| 1479 |
+ |
public void await(CountDownLatch latch) { |
| 1480 |
+ |
await(latch, LONG_DELAY_MS); |
| 1481 |
+ |
} |
| 1482 |
+ |
|
| 1483 |
|
public void await(Semaphore semaphore) { |
| 1484 |
|
try { |
| 1485 |
< |
assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)); |
| 1485 |
> |
if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)) |
| 1486 |
> |
fail("timed out waiting for Semaphore for " |
| 1487 |
> |
+ (LONG_DELAY_MS/1000) + " sec"); |
| 1488 |
|
} catch (Throwable fail) { |
| 1489 |
|
threadUnexpectedException(fail); |
| 1490 |
|
} |
