--- jsr166/src/test/tck/JSR166TestCase.java 2015/10/23 17:34:47 1.178 +++ jsr166/src/test/tck/JSR166TestCase.java 2016/12/09 04:24:07 1.212 @@ -6,6 +6,17 @@ * Pat Fisher, Mike Judd. */ +/* + * @test + * @summary JSR-166 tck tests + * @modules java.base/java.util.concurrent:open + * java.management + * @build * + * @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase + * @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=0 -Djsr166.testImplementationDetails=true JSR166TestCase + * @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=1 -Djava.util.secureRandomSeed=true JSR166TestCase + */ + import static java.util.concurrent.TimeUnit.MILLISECONDS; import static java.util.concurrent.TimeUnit.MINUTES; import static java.util.concurrent.TimeUnit.NANOSECONDS; @@ -31,6 +42,8 @@ import java.security.ProtectionDomain; import java.security.SecurityPermission; import java.util.ArrayList; import java.util.Arrays; +import java.util.Collection; +import java.util.Collections; import java.util.Date; import java.util.Enumeration; import java.util.Iterator; @@ -50,9 +63,12 @@ import java.util.concurrent.RecursiveAct import java.util.concurrent.RecursiveTask; import java.util.concurrent.RejectedExecutionHandler; import java.util.concurrent.Semaphore; +import java.util.concurrent.SynchronousQueue; import java.util.concurrent.ThreadFactory; +import java.util.concurrent.ThreadLocalRandom; import java.util.concurrent.ThreadPoolExecutor; import java.util.concurrent.TimeoutException; +import java.util.concurrent.atomic.AtomicBoolean; import java.util.concurrent.atomic.AtomicReference; import java.util.regex.Matcher; import java.util.regex.Pattern; @@ -112,8 +128,7 @@ import junit.framework.TestSuite; * methods as there are exceptions the method can throw. Sometimes * there are multiple tests per JSR166 method when the different * "normal" behaviors differ significantly. And sometimes testcases - * cover multiple methods when they cannot be tested in - * isolation. + * cover multiple methods when they cannot be tested in isolation. * *
  • The documentation style for testcases is to provide as javadoc * a simple sentence or two describing the property that the testcase @@ -176,6 +191,44 @@ public class JSR166TestCase extends Test private static final int suiteRuns = Integer.getInteger("jsr166.suiteRuns", 1); + /** + * Returns the value of the system property, or NaN if not defined. + */ + private static float systemPropertyValue(String name) { + String floatString = System.getProperty(name); + if (floatString == null) + return Float.NaN; + try { + return Float.parseFloat(floatString); + } catch (NumberFormatException ex) { + throw new IllegalArgumentException( + String.format("Bad float value in system property %s=%s", + name, floatString)); + } + } + + /** + * The scaling factor to apply to standard delays used in tests. + * May be initialized from any of: + * - the "jsr166.delay.factor" system property + * - the "test.timeout.factor" system property (as used by jtreg) + * See: http://openjdk.java.net/jtreg/tag-spec.html + * - hard-coded fuzz factor when using a known slowpoke VM + */ + private static final float delayFactor = delayFactor(); + + private static float delayFactor() { + float x; + if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor"))) + return x; + if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor"))) + return x; + String prop = System.getProperty("java.vm.version"); + if (prop != null && prop.matches(".*debug.*")) + return 4.0f; // How much slower is fastdebug than product?! + return 1.0f; + } + public JSR166TestCase() { super(); } public JSR166TestCase(String name) { super(name); } @@ -277,10 +330,10 @@ public class JSR166TestCase extends Test PithyResultPrinter(java.io.PrintStream writer) { super(writer); } long runTime; public void startTest(Test test) {} - protected void printHeader(long runTime) { + protected void printHeader(long runTime) { this.runTime = runTime; // defer printing for later - } - protected void printFooter(TestResult result) { + } + protected void printFooter(TestResult result) { if (result.wasSuccessful()) { getWriter().println("OK (" + result.runCount() + " tests)" + " Time: " + elapsedTimeAsString(runTime)); @@ -396,6 +449,7 @@ public class JSR166TestCase extends Test AbstractQueuedLongSynchronizerTest.suite(), ArrayBlockingQueueTest.suite(), ArrayDequeTest.suite(), + ArrayListTest.suite(), AtomicBooleanTest.suite(), AtomicIntegerArrayTest.suite(), AtomicIntegerFieldUpdaterTest.suite(), @@ -418,6 +472,7 @@ public class JSR166TestCase extends Test CopyOnWriteArrayListTest.suite(), CopyOnWriteArraySetTest.suite(), CountDownLatchTest.suite(), + CountedCompleterTest.suite(), CyclicBarrierTest.suite(), DelayQueueTest.suite(), EntryTest.suite(), @@ -446,15 +501,17 @@ public class JSR166TestCase extends Test TreeMapTest.suite(), TreeSetTest.suite(), TreeSubMapTest.suite(), - TreeSubSetTest.suite()); + TreeSubSetTest.suite(), + VectorTest.suite()); // Java8+ test classes if (atLeastJava8()) { String[] java8TestClassNames = { + "ArrayDeque8Test", "Atomic8Test", "CompletableFutureTest", "ConcurrentHashMap8Test", - "CountedCompleterTest", + "CountedCompleter8Test", "DoubleAccumulatorTest", "DoubleAdderTest", "ForkJoinPool8Test", @@ -465,6 +522,7 @@ public class JSR166TestCase extends Test "StampedLockTest", "SubmissionPublisherTest", "ThreadLocalRandom8Test", + "TimeUnit8Test", }; addNamedTestClasses(suite, java8TestClassNames); } @@ -472,7 +530,14 @@ public class JSR166TestCase extends Test // Java9+ test classes if (atLeastJava9()) { String[] java9TestClassNames = { - // Currently empty, but expecting varhandle tests + "AtomicBoolean9Test", + "AtomicInteger9Test", + "AtomicIntegerArray9Test", + "AtomicLong9Test", + "AtomicLongArray9Test", + "AtomicReference9Test", + "AtomicReferenceArray9Test", + "ExecutorCompletionService9Test", }; addNamedTestClasses(suite, java9TestClassNames); } @@ -549,11 +614,13 @@ public class JSR166TestCase extends Test public static long LONG_DELAY_MS; /** - * Returns the shortest timed delay. This could - * be reimplemented to use for example a Property. + * Returns the shortest timed delay. This can be scaled up for + * slow machines using the jsr166.delay.factor system property, + * or via jtreg's -timeoutFactor: flag. + * http://openjdk.java.net/jtreg/command-help.html */ protected long getShortDelay() { - return 50; + return (long) (50 * delayFactor); } /** @@ -866,6 +933,14 @@ public class JSR166TestCase extends Test }}; } + PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) { + return new PoolCleanerWithReleaser(pool, releaser(flag)); + } + + Runnable releaser(final AtomicBoolean flag) { + return new Runnable() { public void run() { flag.set(true); }}; + } + /** * Waits out termination of a thread pool or fails doing so. */ @@ -889,7 +964,11 @@ public class JSR166TestCase extends Test } } - /** Like Runnable, but with the freedom to throw anything */ + /** + * Like Runnable, but with the freedom to throw anything. + * junit folks had the same idea: + * http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html + */ interface Action { public void run() throws Throwable; } /** @@ -920,23 +999,37 @@ public class JSR166TestCase extends Test * Uninteresting threads are filtered out. */ static void dumpTestThreads() { + SecurityManager sm = System.getSecurityManager(); + if (sm != null) { + try { + System.setSecurityManager(null); + } catch (SecurityException giveUp) { + return; + } + } + ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean(); System.err.println("------ stacktrace dump start ------"); for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) { - String name = info.getThreadName(); + final String name = info.getThreadName(); + String lockName; if ("Signal Dispatcher".equals(name)) continue; if ("Reference Handler".equals(name) - && info.getLockName().startsWith("java.lang.ref.Reference$Lock")) + && (lockName = info.getLockName()) != null + && lockName.startsWith("java.lang.ref.Reference$Lock")) continue; if ("Finalizer".equals(name) - && info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock")) + && (lockName = info.getLockName()) != null + && lockName.startsWith("java.lang.ref.ReferenceQueue$Lock")) continue; if ("checkForWedgedTest".equals(name)) continue; System.err.print(info); } System.err.println("------ stacktrace dump end ------"); + + if (sm != null) System.setSecurityManager(sm); } /** @@ -1153,7 +1246,7 @@ public class JSR166TestCase extends Test * Sleeps until the given time has elapsed. * Throws AssertionFailedError if interrupted. */ - void sleep(long millis) { + static void sleep(long millis) { try { delay(millis); } catch (InterruptedException fail) { @@ -1169,7 +1262,7 @@ public class JSR166TestCase extends Test * thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING. */ void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) { - long startTime = System.nanoTime(); + long startTime = 0L; for (;;) { Thread.State s = thread.getState(); if (s == Thread.State.BLOCKED || @@ -1178,6 +1271,8 @@ public class JSR166TestCase extends Test return; else if (s == Thread.State.TERMINATED) fail("Unexpected thread termination"); + else if (startTime == 0L) + startTime = System.nanoTime(); else if (millisElapsedSince(startTime) > timeoutMillis) { threadAssertTrue(thread.isAlive()); return; @@ -1422,16 +1517,20 @@ public class JSR166TestCase extends Test return new LatchAwaiter(latch); } - public void await(CountDownLatch latch) { + public void await(CountDownLatch latch, long timeoutMillis) { try { - if (!latch.await(LONG_DELAY_MS, MILLISECONDS)) + if (!latch.await(timeoutMillis, MILLISECONDS)) fail("timed out waiting for CountDownLatch for " - + (LONG_DELAY_MS/1000) + " sec"); + + (timeoutMillis/1000) + " sec"); } catch (Throwable fail) { threadUnexpectedException(fail); } } + public void await(CountDownLatch latch) { + await(latch, LONG_DELAY_MS); + } + public void await(Semaphore semaphore) { try { if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)) @@ -1666,7 +1765,7 @@ public class JSR166TestCase extends Test * A CyclicBarrier that uses timed await and fails with * AssertionFailedErrors instead of throwing checked exceptions. */ - public class CheckedBarrier extends CyclicBarrier { + public static class CheckedBarrier extends CyclicBarrier { public CheckedBarrier(int parties) { super(parties); } public int await() { @@ -1730,12 +1829,22 @@ public class JSR166TestCase extends Test } } + void assertImmutable(final Object o) { + if (o instanceof Collection) { + assertThrows( + UnsupportedOperationException.class, + new Runnable() { public void run() { + ((Collection) o).add(null);}}); + } + } + @SuppressWarnings("unchecked") T serialClone(T o) { try { ObjectInputStream ois = new ObjectInputStream (new ByteArrayInputStream(serialBytes(o))); T clone = (T) ois.readObject(); + if (o == clone) assertImmutable(o); assertSame(o.getClass(), clone.getClass()); return clone; } catch (Throwable fail) { @@ -1744,6 +1853,46 @@ public class JSR166TestCase extends Test } } + /** + * A version of serialClone that leaves error handling (for + * e.g. NotSerializableException) up to the caller. + */ + @SuppressWarnings("unchecked") + T serialClonePossiblyFailing(T o) + throws ReflectiveOperationException, java.io.IOException { + ByteArrayOutputStream bos = new ByteArrayOutputStream(); + ObjectOutputStream oos = new ObjectOutputStream(bos); + oos.writeObject(o); + oos.flush(); + oos.close(); + ObjectInputStream ois = new ObjectInputStream + (new ByteArrayInputStream(bos.toByteArray())); + T clone = (T) ois.readObject(); + if (o == clone) assertImmutable(o); + assertSame(o.getClass(), clone.getClass()); + return clone; + } + + /** + * If o implements Cloneable and has a public clone method, + * returns a clone of o, else null. + */ + @SuppressWarnings("unchecked") + T cloneableClone(T o) { + if (!(o instanceof Cloneable)) return null; + final T clone; + try { + clone = (T) o.getClass().getMethod("clone").invoke(o); + } catch (NoSuchMethodException ok) { + return null; + } catch (ReflectiveOperationException unexpected) { + throw new Error(unexpected); + } + assertNotSame(o, clone); // not 100% guaranteed by spec + assertSame(o.getClass(), clone.getClass()); + return clone; + } + public void assertThrows(Class expectedExceptionClass, Runnable... throwingActions) { for (Runnable throwingAction : throwingActions) { @@ -1772,4 +1921,22 @@ public class JSR166TestCase extends Test } catch (NoSuchElementException success) {} assertFalse(it.hasNext()); } + + public Callable callableThrowing(final Exception ex) { + return new Callable() { public T call() throws Exception { throw ex; }}; + } + + public Runnable runnableThrowing(final RuntimeException ex) { + return new Runnable() { public void run() { throw ex; }}; + } + + /** A reusable thread pool to be shared by tests. */ + static final ExecutorService cachedThreadPool = + new ThreadPoolExecutor(0, Integer.MAX_VALUE, + 1000L, MILLISECONDS, + new SynchronousQueue()); + + static void shuffle(T[] array) { + Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current()); + } }