--- jsr166/src/test/tck/JSR166TestCase.java 2010/09/13 23:19:31 1.52
+++ jsr166/src/test/tck/JSR166TestCase.java 2014/06/16 18:01:38 1.118
@@ -1,17 +1,39 @@
/*
* Written by Doug Lea with assistance from members of JCP JSR-166
* Expert Group and released to the public domain, as explained at
- * http://creativecommons.org/licenses/publicdomain
+ * http://creativecommons.org/publicdomain/zero/1.0/
* Other contributors include Andrew Wright, Jeffrey Hayes,
* Pat Fisher, Mike Judd.
*/
import junit.framework.*;
-import java.util.*;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.lang.management.ManagementFactory;
+import java.lang.management.ThreadInfo;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Date;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.NoSuchElementException;
+import java.util.PropertyPermission;
import java.util.concurrent.*;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicReference;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
-import java.io.*;
-import java.security.*;
+import static java.util.concurrent.TimeUnit.NANOSECONDS;
+import java.util.regex.Pattern;
+import java.security.CodeSource;
+import java.security.Permission;
+import java.security.PermissionCollection;
+import java.security.Permissions;
+import java.security.Policy;
+import java.security.ProtectionDomain;
+import java.security.SecurityPermission;
/**
* Base class for JSR166 Junit TCK tests. Defines some constants,
@@ -54,7 +76,7 @@ import java.security.*;
*
*
*
- * Other notes
+ *
Other notes
*
*
* - Usually, there is one testcase method per JSR166 method
@@ -90,8 +112,73 @@ public class JSR166TestCase extends Test
private static final boolean useSecurityManager =
Boolean.getBoolean("jsr166.useSecurityManager");
+ protected static final boolean expensiveTests =
+ Boolean.getBoolean("jsr166.expensiveTests");
+
+ protected static final boolean testImplementationDetails =
+ Boolean.getBoolean("jsr166.testImplementationDetails");
+
+ /**
+ * If true, report on stdout all "slow" tests, that is, ones that
+ * take more than profileThreshold milliseconds to execute.
+ */
+ private static final boolean profileTests =
+ Boolean.getBoolean("jsr166.profileTests");
+
+ /**
+ * The number of milliseconds that tests are permitted for
+ * execution without being reported, when profileTests is set.
+ */
+ private static final long profileThreshold =
+ Long.getLong("jsr166.profileThreshold", 100);
+
/**
- * Runs all JSR166 unit tests using junit.textui.TestRunner
+ * The number of repetitions per test (for tickling rare bugs).
+ */
+ private static final int runsPerTest =
+ Integer.getInteger("jsr166.runsPerTest", 1);
+
+ /**
+ * A filter for tests to run, matching strings of the form
+ * methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
+ * Usefully combined with jsr166.runsPerTest.
+ */
+ private static final Pattern methodFilter = methodFilter();
+
+ private static Pattern methodFilter() {
+ String regex = System.getProperty("jsr166.methodFilter");
+ return (regex == null) ? null : Pattern.compile(regex);
+ }
+
+ protected void runTest() throws Throwable {
+ if (methodFilter == null
+ || methodFilter.matcher(toString()).find()) {
+ for (int i = 0; i < runsPerTest; i++) {
+ if (profileTests)
+ runTestProfiled();
+ else
+ super.runTest();
+ }
+ }
+ }
+
+ protected void runTestProfiled() throws Throwable {
+ // Warmup run, notably to trigger all needed classloading.
+ super.runTest();
+ long t0 = System.nanoTime();
+ try {
+ super.runTest();
+ } finally {
+ long elapsedMillis = millisElapsedSince(t0);
+ if (elapsedMillis >= profileThreshold)
+ System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
+ }
+ }
+
+ /**
+ * Runs all JSR166 unit tests using junit.textui.TestRunner.
+ * Optional command line arg provides the number of iterations to
+ * repeat running the tests.
*/
public static void main(String[] args) {
if (useSecurityManager) {
@@ -99,9 +186,8 @@ public class JSR166TestCase extends Test
Policy.setPolicy(permissivePolicy());
System.setSecurityManager(new SecurityManager());
}
- int iters = 1;
- if (args.length > 0)
- iters = Integer.parseInt(args[0]);
+ int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
+
Test s = suite();
for (int i = 0; i < iters; ++i) {
junit.textui.TestRunner.run(s);
@@ -111,87 +197,167 @@ public class JSR166TestCase extends Test
System.exit(0);
}
+ public static TestSuite newTestSuite(Object... suiteOrClasses) {
+ TestSuite suite = new TestSuite();
+ for (Object suiteOrClass : suiteOrClasses) {
+ if (suiteOrClass instanceof TestSuite)
+ suite.addTest((TestSuite) suiteOrClass);
+ else if (suiteOrClass instanceof Class)
+ suite.addTest(new TestSuite((Class) suiteOrClass));
+ else
+ throw new ClassCastException("not a test suite or class");
+ }
+ return suite;
+ }
+
+ public static void addNamedTestClasses(TestSuite suite,
+ String... testClassNames) {
+ for (String testClassName : testClassNames) {
+ try {
+ Class testClass = Class.forName(testClassName);
+ Method m = testClass.getDeclaredMethod("suite",
+ new Class[0]);
+ suite.addTest(newTestSuite((Test)m.invoke(null)));
+ } catch (Exception e) {
+ throw new Error("Missing test class", e);
+ }
+ }
+ }
+
+ public static final double JAVA_CLASS_VERSION;
+ public static final String JAVA_SPECIFICATION_VERSION;
+ static {
+ try {
+ JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
+ new java.security.PrivilegedAction() {
+ public Double run() {
+ return Double.valueOf(System.getProperty("java.class.version"));}});
+ JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
+ new java.security.PrivilegedAction() {
+ public String run() {
+ return System.getProperty("java.specification.version");}});
+ } catch (Throwable t) {
+ throw new Error(t);
+ }
+ }
+
+ public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
+ public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
+ public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
+ public static boolean atLeastJava9() {
+ // As of 2014-05, java9 still uses 52.0 class file version
+ return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
+ }
+
/**
- * Collects all JSR166 unit tests as one suite
+ * Collects all JSR166 unit tests as one suite.
*/
public static Test suite() {
- TestSuite suite = new TestSuite("JSR166 Unit Tests");
-
- suite.addTest(new TestSuite(ForkJoinPoolTest.class));
- suite.addTest(new TestSuite(ForkJoinTaskTest.class));
- suite.addTest(new TestSuite(RecursiveActionTest.class));
- suite.addTest(new TestSuite(RecursiveTaskTest.class));
- suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
- suite.addTest(new TestSuite(PhaserTest.class));
- suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
- suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
- suite.addTest(new TestSuite(AbstractQueueTest.class));
- suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
- suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
- suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
- suite.addTest(new TestSuite(ArrayDequeTest.class));
- suite.addTest(new TestSuite(AtomicBooleanTest.class));
- suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
- suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
- suite.addTest(new TestSuite(AtomicIntegerTest.class));
- suite.addTest(new TestSuite(AtomicLongArrayTest.class));
- suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
- suite.addTest(new TestSuite(AtomicLongTest.class));
- suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
- suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
- suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
- suite.addTest(new TestSuite(AtomicReferenceTest.class));
- suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
- suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
- suite.addTest(new TestSuite(ConcurrentLinkedDequeTest.class));
- suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
- suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
- suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
- suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
- suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
- suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
- suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
- suite.addTest(new TestSuite(CountDownLatchTest.class));
- suite.addTest(new TestSuite(CyclicBarrierTest.class));
- suite.addTest(new TestSuite(DelayQueueTest.class));
- suite.addTest(new TestSuite(EntryTest.class));
- suite.addTest(new TestSuite(ExchangerTest.class));
- suite.addTest(new TestSuite(ExecutorsTest.class));
- suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
- suite.addTest(new TestSuite(FutureTaskTest.class));
- suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
- suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
- suite.addTest(new TestSuite(LinkedListTest.class));
- suite.addTest(new TestSuite(LockSupportTest.class));
- suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
- suite.addTest(new TestSuite(PriorityQueueTest.class));
- suite.addTest(new TestSuite(ReentrantLockTest.class));
- suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
- suite.addTest(new TestSuite(ScheduledExecutorTest.class));
- suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
- suite.addTest(new TestSuite(SemaphoreTest.class));
- suite.addTest(new TestSuite(SynchronousQueueTest.class));
- suite.addTest(new TestSuite(SystemTest.class));
- suite.addTest(new TestSuite(ThreadLocalTest.class));
- suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
- suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
- suite.addTest(new TestSuite(ThreadTest.class));
- suite.addTest(new TestSuite(TimeUnitTest.class));
- suite.addTest(new TestSuite(TreeMapTest.class));
- suite.addTest(new TestSuite(TreeSetTest.class));
- suite.addTest(new TestSuite(TreeSubMapTest.class));
- suite.addTest(new TestSuite(TreeSubSetTest.class));
+ // Java7+ test classes
+ TestSuite suite = newTestSuite(
+ ForkJoinPoolTest.suite(),
+ ForkJoinTaskTest.suite(),
+ RecursiveActionTest.suite(),
+ RecursiveTaskTest.suite(),
+ LinkedTransferQueueTest.suite(),
+ PhaserTest.suite(),
+ ThreadLocalRandomTest.suite(),
+ AbstractExecutorServiceTest.suite(),
+ AbstractQueueTest.suite(),
+ AbstractQueuedSynchronizerTest.suite(),
+ AbstractQueuedLongSynchronizerTest.suite(),
+ ArrayBlockingQueueTest.suite(),
+ ArrayDequeTest.suite(),
+ AtomicBooleanTest.suite(),
+ AtomicIntegerArrayTest.suite(),
+ AtomicIntegerFieldUpdaterTest.suite(),
+ AtomicIntegerTest.suite(),
+ AtomicLongArrayTest.suite(),
+ AtomicLongFieldUpdaterTest.suite(),
+ AtomicLongTest.suite(),
+ AtomicMarkableReferenceTest.suite(),
+ AtomicReferenceArrayTest.suite(),
+ AtomicReferenceFieldUpdaterTest.suite(),
+ AtomicReferenceTest.suite(),
+ AtomicStampedReferenceTest.suite(),
+ ConcurrentHashMapTest.suite(),
+ ConcurrentLinkedDequeTest.suite(),
+ ConcurrentLinkedQueueTest.suite(),
+ ConcurrentSkipListMapTest.suite(),
+ ConcurrentSkipListSubMapTest.suite(),
+ ConcurrentSkipListSetTest.suite(),
+ ConcurrentSkipListSubSetTest.suite(),
+ CopyOnWriteArrayListTest.suite(),
+ CopyOnWriteArraySetTest.suite(),
+ CountDownLatchTest.suite(),
+ CyclicBarrierTest.suite(),
+ DelayQueueTest.suite(),
+ EntryTest.suite(),
+ ExchangerTest.suite(),
+ ExecutorsTest.suite(),
+ ExecutorCompletionServiceTest.suite(),
+ FutureTaskTest.suite(),
+ LinkedBlockingDequeTest.suite(),
+ LinkedBlockingQueueTest.suite(),
+ LinkedListTest.suite(),
+ LockSupportTest.suite(),
+ PriorityBlockingQueueTest.suite(),
+ PriorityQueueTest.suite(),
+ ReentrantLockTest.suite(),
+ ReentrantReadWriteLockTest.suite(),
+ ScheduledExecutorTest.suite(),
+ ScheduledExecutorSubclassTest.suite(),
+ SemaphoreTest.suite(),
+ SynchronousQueueTest.suite(),
+ SystemTest.suite(),
+ ThreadLocalTest.suite(),
+ ThreadPoolExecutorTest.suite(),
+ ThreadPoolExecutorSubclassTest.suite(),
+ ThreadTest.suite(),
+ TimeUnitTest.suite(),
+ TreeMapTest.suite(),
+ TreeSetTest.suite(),
+ TreeSubMapTest.suite(),
+ TreeSubSetTest.suite());
+
+ // Java8+ test classes
+ if (atLeastJava8()) {
+ String[] java8TestClassNames = {
+ "Atomic8Test",
+ "CompletableFutureTest",
+ "ConcurrentHashMap8Test",
+ "CountedCompleterTest",
+ "DoubleAccumulatorTest",
+ "DoubleAdderTest",
+ "ForkJoinPool8Test",
+ "ForkJoinTask8Test",
+ "LongAccumulatorTest",
+ "LongAdderTest",
+ "SplittableRandomTest",
+ "StampedLockTest",
+ "ThreadLocalRandom8Test",
+ };
+ addNamedTestClasses(suite, java8TestClassNames);
+ }
+
+ // Java9+ test classes
+ if (atLeastJava9()) {
+ String[] java9TestClassNames = {
+ "ThreadPoolExecutor9Test",
+ };
+ addNamedTestClasses(suite, java9TestClassNames);
+ }
return suite;
}
+ // Delays for timing-dependent tests, in milliseconds.
public static long SHORT_DELAY_MS;
public static long SMALL_DELAY_MS;
public static long MEDIUM_DELAY_MS;
public static long LONG_DELAY_MS;
-
/**
* Returns the shortest timed delay. This could
* be reimplemented to use for example a Property.
@@ -200,151 +366,268 @@ public class JSR166TestCase extends Test
return 50;
}
-
/**
* Sets delays as multiples of SHORT_DELAY.
*/
protected void setDelays() {
SHORT_DELAY_MS = getShortDelay();
- SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
+ SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
- LONG_DELAY_MS = SHORT_DELAY_MS * 50;
+ LONG_DELAY_MS = SHORT_DELAY_MS * 200;
}
/**
- * Flag set true if any threadAssert methods fail
+ * Returns a timeout in milliseconds to be used in tests that
+ * verify that operations block or time out.
*/
- volatile boolean threadFailed;
+ long timeoutMillis() {
+ return SHORT_DELAY_MS / 4;
+ }
+
+ /**
+ * Returns a new Date instance representing a time delayMillis
+ * milliseconds in the future.
+ */
+ Date delayedDate(long delayMillis) {
+ return new Date(System.currentTimeMillis() + delayMillis);
+ }
+
+ /**
+ * The first exception encountered if any threadAssertXXX method fails.
+ */
+ private final AtomicReference threadFailure
+ = new AtomicReference(null);
/**
- * Initializes test to indicate that no thread assertions have failed
+ * Records an exception so that it can be rethrown later in the test
+ * harness thread, triggering a test case failure. Only the first
+ * failure is recorded; subsequent calls to this method from within
+ * the same test have no effect.
*/
+ public void threadRecordFailure(Throwable t) {
+ threadFailure.compareAndSet(null, t);
+ }
+
public void setUp() {
setDelays();
- threadFailed = false;
}
/**
- * Triggers test case failure if any thread assertions have failed
+ * Extra checks that get done for all test cases.
+ *
+ * Triggers test case failure if any thread assertions have failed,
+ * by rethrowing, in the test harness thread, any exception recorded
+ * earlier by threadRecordFailure.
+ *
+ * Triggers test case failure if interrupt status is set in the main thread.
+ */
+ public void tearDown() throws Exception {
+ Throwable t = threadFailure.getAndSet(null);
+ if (t != null) {
+ if (t instanceof Error)
+ throw (Error) t;
+ else if (t instanceof RuntimeException)
+ throw (RuntimeException) t;
+ else if (t instanceof Exception)
+ throw (Exception) t;
+ else {
+ AssertionFailedError afe =
+ new AssertionFailedError(t.toString());
+ afe.initCause(t);
+ throw afe;
+ }
+ }
+
+ if (Thread.interrupted())
+ throw new AssertionFailedError("interrupt status set in main thread");
+
+ checkForkJoinPoolThreadLeaks();
+ }
+
+ /**
+ * Find missing try { ... } finally { joinPool(e); }
*/
- public void tearDown() {
- assertFalse(threadFailed);
+ void checkForkJoinPoolThreadLeaks() throws InterruptedException {
+ Thread[] survivors = new Thread[5];
+ int count = Thread.enumerate(survivors);
+ for (int i = 0; i < count; i++) {
+ Thread thread = survivors[i];
+ String name = thread.getName();
+ if (name.startsWith("ForkJoinPool-")) {
+ // give thread some time to terminate
+ thread.join(LONG_DELAY_MS);
+ if (!thread.isAlive()) continue;
+ thread.stop();
+ throw new AssertionFailedError
+ (String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
+ toString(), name));
+ }
+ }
}
/**
- * Fail, also setting status to indicate current testcase should fail
+ * Just like fail(reason), but additionally recording (using
+ * threadRecordFailure) any AssertionFailedError thrown, so that
+ * the current testcase will fail.
*/
public void threadFail(String reason) {
- threadFailed = true;
- fail(reason);
+ try {
+ fail(reason);
+ } catch (AssertionFailedError t) {
+ threadRecordFailure(t);
+ fail(reason);
+ }
}
/**
- * If expression not true, set status to indicate current testcase
- * should fail
+ * Just like assertTrue(b), but additionally recording (using
+ * threadRecordFailure) any AssertionFailedError thrown, so that
+ * the current testcase will fail.
*/
public void threadAssertTrue(boolean b) {
- if (!b) {
- threadFailed = true;
+ try {
assertTrue(b);
+ } catch (AssertionFailedError t) {
+ threadRecordFailure(t);
+ throw t;
}
}
/**
- * If expression not false, set status to indicate current testcase
- * should fail
+ * Just like assertFalse(b), but additionally recording (using
+ * threadRecordFailure) any AssertionFailedError thrown, so that
+ * the current testcase will fail.
*/
public void threadAssertFalse(boolean b) {
- if (b) {
- threadFailed = true;
+ try {
assertFalse(b);
+ } catch (AssertionFailedError t) {
+ threadRecordFailure(t);
+ throw t;
}
}
/**
- * If argument not null, set status to indicate current testcase
- * should fail
+ * Just like assertNull(x), but additionally recording (using
+ * threadRecordFailure) any AssertionFailedError thrown, so that
+ * the current testcase will fail.
*/
public void threadAssertNull(Object x) {
- if (x != null) {
- threadFailed = true;
+ try {
assertNull(x);
+ } catch (AssertionFailedError t) {
+ threadRecordFailure(t);
+ throw t;
}
}
/**
- * If arguments not equal, set status to indicate current testcase
- * should fail
+ * Just like assertEquals(x, y), but additionally recording (using
+ * threadRecordFailure) any AssertionFailedError thrown, so that
+ * the current testcase will fail.
*/
public void threadAssertEquals(long x, long y) {
- if (x != y) {
- threadFailed = true;
+ try {
assertEquals(x, y);
+ } catch (AssertionFailedError t) {
+ threadRecordFailure(t);
+ throw t;
}
}
/**
- * If arguments not equal, set status to indicate current testcase
- * should fail
+ * Just like assertEquals(x, y), but additionally recording (using
+ * threadRecordFailure) any AssertionFailedError thrown, so that
+ * the current testcase will fail.
*/
public void threadAssertEquals(Object x, Object y) {
- if (x != y && (x == null || !x.equals(y))) {
- threadFailed = true;
+ try {
assertEquals(x, y);
+ } catch (AssertionFailedError t) {
+ threadRecordFailure(t);
+ throw t;
+ } catch (Throwable t) {
+ threadUnexpectedException(t);
}
}
/**
- * If arguments not identical, set status to indicate current testcase
- * should fail
+ * Just like assertSame(x, y), but additionally recording (using
+ * threadRecordFailure) any AssertionFailedError thrown, so that
+ * the current testcase will fail.
*/
public void threadAssertSame(Object x, Object y) {
- if (x != y) {
- threadFailed = true;
+ try {
assertSame(x, y);
+ } catch (AssertionFailedError t) {
+ threadRecordFailure(t);
+ throw t;
}
}
/**
- * threadFail with message "should throw exception"
+ * Calls threadFail with message "should throw exception".
*/
public void threadShouldThrow() {
- threadFailed = true;
- fail("should throw exception");
+ threadFail("should throw exception");
}
/**
- * threadFail with message "should throw" + exceptionName
+ * Calls threadFail with message "should throw" + exceptionName.
*/
public void threadShouldThrow(String exceptionName) {
- threadFailed = true;
- fail("should throw " + exceptionName);
+ threadFail("should throw " + exceptionName);
}
/**
- * threadFail with message "Unexpected exception"
+ * Records the given exception using {@link #threadRecordFailure},
+ * then rethrows the exception, wrapping it in an
+ * AssertionFailedError if necessary.
*/
- public void threadUnexpectedException() {
- threadFailed = true;
- fail("Unexpected exception");
+ public void threadUnexpectedException(Throwable t) {
+ threadRecordFailure(t);
+ t.printStackTrace();
+ if (t instanceof RuntimeException)
+ throw (RuntimeException) t;
+ else if (t instanceof Error)
+ throw (Error) t;
+ else {
+ AssertionFailedError afe =
+ new AssertionFailedError("unexpected exception: " + t);
+ afe.initCause(t);
+ throw afe;
+ }
}
/**
- * threadFail with message "Unexpected exception", with argument
+ * Delays, via Thread.sleep, for the given millisecond delay, but
+ * if the sleep is shorter than specified, may re-sleep or yield
+ * until time elapses.
*/
- public void threadUnexpectedException(Throwable ex) {
- threadFailed = true;
- ex.printStackTrace();
- fail("Unexpected exception: " + ex);
+ static void delay(long millis) throws InterruptedException {
+ long startTime = System.nanoTime();
+ long ns = millis * 1000 * 1000;
+ for (;;) {
+ if (millis > 0L)
+ Thread.sleep(millis);
+ else // too short to sleep
+ Thread.yield();
+ long d = ns - (System.nanoTime() - startTime);
+ if (d > 0L)
+ millis = d / (1000 * 1000);
+ else
+ break;
+ }
}
/**
- * Wait out termination of a thread pool or fail doing so
+ * Waits out termination of a thread pool or fails doing so.
*/
- public void joinPool(ExecutorService exec) {
+ void joinPool(ExecutorService exec) {
try {
exec.shutdown();
- assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
+ assertTrue("ExecutorService did not terminate in a timely manner",
+ exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
} catch (SecurityException ok) {
// Allowed in case test doesn't have privs
} catch (InterruptedException ie) {
@@ -352,36 +635,95 @@ public class JSR166TestCase extends Test
}
}
+ /**
+ * A debugging tool to print all stack traces, as jstack does.
+ */
+ static void printAllStackTraces() {
+ for (ThreadInfo info :
+ ManagementFactory.getThreadMXBean()
+ .dumpAllThreads(true, true))
+ System.err.print(info);
+ }
/**
- * fail with message "should throw exception"
+ * Checks that thread does not terminate within the default
+ * millisecond delay of {@code timeoutMillis()}.
*/
- public void shouldThrow() {
- fail("Should throw exception");
+ void assertThreadStaysAlive(Thread thread) {
+ assertThreadStaysAlive(thread, timeoutMillis());
}
/**
- * fail with message "should throw " + exceptionName
+ * Checks that thread does not terminate within the given millisecond delay.
*/
- public void shouldThrow(String exceptionName) {
- fail("Should throw " + exceptionName);
+ void assertThreadStaysAlive(Thread thread, long millis) {
+ try {
+ // No need to optimize the failing case via Thread.join.
+ delay(millis);
+ assertTrue(thread.isAlive());
+ } catch (InterruptedException ie) {
+ fail("Unexpected InterruptedException");
+ }
+ }
+
+ /**
+ * Checks that the threads do not terminate within the default
+ * millisecond delay of {@code timeoutMillis()}.
+ */
+ void assertThreadsStayAlive(Thread... threads) {
+ assertThreadsStayAlive(timeoutMillis(), threads);
}
/**
- * fail with message "Unexpected exception"
+ * Checks that the threads do not terminate within the given millisecond delay.
*/
- public void unexpectedException() {
- fail("Unexpected exception");
+ void assertThreadsStayAlive(long millis, Thread... threads) {
+ try {
+ // No need to optimize the failing case via Thread.join.
+ delay(millis);
+ for (Thread thread : threads)
+ assertTrue(thread.isAlive());
+ } catch (InterruptedException ie) {
+ fail("Unexpected InterruptedException");
+ }
}
/**
- * fail with message "Unexpected exception", with argument
+ * Checks that future.get times out, with the default timeout of
+ * {@code timeoutMillis()}.
*/
- public void unexpectedException(Throwable ex) {
- ex.printStackTrace();
- fail("Unexpected exception: " + ex);
+ void assertFutureTimesOut(Future future) {
+ assertFutureTimesOut(future, timeoutMillis());
}
+ /**
+ * Checks that future.get times out, with the given millisecond timeout.
+ */
+ void assertFutureTimesOut(Future future, long timeoutMillis) {
+ long startTime = System.nanoTime();
+ try {
+ future.get(timeoutMillis, MILLISECONDS);
+ shouldThrow();
+ } catch (TimeoutException success) {
+ } catch (Exception e) {
+ threadUnexpectedException(e);
+ } finally { future.cancel(true); }
+ assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
+ }
+
+ /**
+ * Fails with message "should throw exception".
+ */
+ public void shouldThrow() {
+ fail("Should throw exception");
+ }
+
+ /**
+ * Fails with message "should throw " + exceptionName.
+ */
+ public void shouldThrow(String exceptionName) {
+ fail("Should throw " + exceptionName);
+ }
/**
* The number of elements to place in collections, arrays, etc.
@@ -408,7 +750,6 @@ public class JSR166TestCase extends Test
public static final Integer m6 = new Integer(-6);
public static final Integer m10 = new Integer(-10);
-
/**
* Runs Runnable r with a security policy that permits precisely
* the specified permissions. If there is no current security
@@ -420,11 +761,26 @@ public class JSR166TestCase extends Test
SecurityManager sm = System.getSecurityManager();
if (sm == null) {
r.run();
+ }
+ runWithSecurityManagerWithPermissions(r, permissions);
+ }
+
+ /**
+ * Runs Runnable r with a security policy that permits precisely
+ * the specified permissions. If there is no current security
+ * manager, a temporary one is set for the duration of the
+ * Runnable. We require that any security manager permit
+ * getPolicy/setPolicy.
+ */
+ public void runWithSecurityManagerWithPermissions(Runnable r,
+ Permission... permissions) {
+ SecurityManager sm = System.getSecurityManager();
+ if (sm == null) {
Policy savedPolicy = Policy.getPolicy();
try {
Policy.setPolicy(permissivePolicy());
System.setSecurityManager(new SecurityManager());
- runWithPermissions(r, permissions);
+ runWithSecurityManagerWithPermissions(r, permissions);
} finally {
System.setSecurityManager(null);
Policy.setPolicy(savedPolicy);
@@ -472,6 +828,12 @@ public class JSR166TestCase extends Test
return perms.implies(p);
}
public void refresh() {}
+ public String toString() {
+ List ps = new ArrayList();
+ for (Enumeration e = perms.elements(); e.hasMoreElements();)
+ ps.add(e.nextElement());
+ return "AdjustablePolicy with permissions " + ps;
+ }
}
/**
@@ -494,24 +856,96 @@ public class JSR166TestCase extends Test
}
/**
- * Sleep until the timeout has elapsed, or interrupted.
- * Does NOT throw InterruptedException.
+ * Sleeps until the given time has elapsed.
+ * Throws AssertionFailedError if interrupted.
*/
- void sleepTillInterrupted(long timeoutMillis) {
+ void sleep(long millis) {
try {
- Thread.sleep(timeoutMillis);
- } catch (InterruptedException wakeup) {}
+ delay(millis);
+ } catch (InterruptedException ie) {
+ AssertionFailedError afe =
+ new AssertionFailedError("Unexpected InterruptedException");
+ afe.initCause(ie);
+ throw afe;
+ }
+ }
+
+ /**
+ * Spin-waits up to the specified number of milliseconds for the given
+ * thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
+ */
+ void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
+ long startTime = System.nanoTime();
+ for (;;) {
+ Thread.State s = thread.getState();
+ if (s == Thread.State.BLOCKED ||
+ s == Thread.State.WAITING ||
+ s == Thread.State.TIMED_WAITING)
+ return;
+ else if (s == Thread.State.TERMINATED)
+ fail("Unexpected thread termination");
+ else if (millisElapsedSince(startTime) > timeoutMillis) {
+ threadAssertTrue(thread.isAlive());
+ return;
+ }
+ Thread.yield();
+ }
+ }
+
+ /**
+ * Waits up to LONG_DELAY_MS for the given thread to enter a wait
+ * state: BLOCKED, WAITING, or TIMED_WAITING.
+ */
+ void waitForThreadToEnterWaitState(Thread thread) {
+ waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
}
/**
- * Returns a new started Thread running the given runnable.
+ * Returns the number of milliseconds since time given by
+ * startNanoTime, which must have been previously returned from a
+ * call to {@link System.nanoTime()}.
+ */
+ static long millisElapsedSince(long startNanoTime) {
+ return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
+ }
+
+ /**
+ * Returns a new started daemon Thread running the given runnable.
*/
Thread newStartedThread(Runnable runnable) {
Thread t = new Thread(runnable);
+ t.setDaemon(true);
t.start();
return t;
}
+ /**
+ * Waits for the specified time (in milliseconds) for the thread
+ * to terminate (using {@link Thread#join(long)}), else interrupts
+ * the thread (in the hope that it may terminate later) and fails.
+ */
+ void awaitTermination(Thread t, long timeoutMillis) {
+ try {
+ t.join(timeoutMillis);
+ } catch (InterruptedException ie) {
+ threadUnexpectedException(ie);
+ } finally {
+ if (t.getState() != Thread.State.TERMINATED) {
+ t.interrupt();
+ fail("Test timed out");
+ }
+ }
+ }
+
+ /**
+ * Waits for LONG_DELAY_MS milliseconds for the thread to
+ * terminate (using {@link Thread#join(long)}), else interrupts
+ * the thread (in the hope that it may terminate later) and fails.
+ */
+ void awaitTermination(Thread t) {
+ awaitTermination(t, LONG_DELAY_MS);
+ }
+
// Some convenient Runnable classes
public abstract class CheckedRunnable implements Runnable {
@@ -574,6 +1008,7 @@ public class JSR166TestCase extends Test
realRun();
threadShouldThrow("InterruptedException");
} catch (InterruptedException success) {
+ threadAssertFalse(Thread.interrupted());
} catch (Throwable t) {
threadUnexpectedException(t);
}
@@ -588,12 +1023,13 @@ public class JSR166TestCase extends Test
return realCall();
} catch (Throwable t) {
threadUnexpectedException(t);
+ return null;
}
- return null;
}
}
- public abstract class CheckedInterruptedCallable implements Callable {
+ public abstract class CheckedInterruptedCallable
+ implements Callable {
protected abstract T realCall() throws Throwable;
public final T call() {
@@ -602,6 +1038,7 @@ public class JSR166TestCase extends Test
threadShouldThrow("InterruptedException");
return result;
} catch (InterruptedException success) {
+ threadAssertFalse(Thread.interrupted());
} catch (Throwable t) {
threadUnexpectedException(t);
}
@@ -625,7 +1062,7 @@ public class JSR166TestCase extends Test
public Callable latchAwaitingStringTask(final CountDownLatch latch) {
return new CheckedCallable() {
- public String realCall() {
+ protected String realCall() {
try {
latch.await();
} catch (InterruptedException quittingTime) {}
@@ -633,6 +1070,48 @@ public class JSR166TestCase extends Test
}};
}
+ public Runnable awaiter(final CountDownLatch latch) {
+ return new CheckedRunnable() {
+ public void realRun() throws InterruptedException {
+ await(latch);
+ }};
+ }
+
+ public void await(CountDownLatch latch) {
+ try {
+ assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
+ } catch (Throwable t) {
+ threadUnexpectedException(t);
+ }
+ }
+
+ public void await(Semaphore semaphore) {
+ try {
+ assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
+ } catch (Throwable t) {
+ threadUnexpectedException(t);
+ }
+ }
+
+// /**
+// * Spin-waits up to LONG_DELAY_MS until flag becomes true.
+// */
+// public void await(AtomicBoolean flag) {
+// await(flag, LONG_DELAY_MS);
+// }
+
+// /**
+// * Spin-waits up to the specified timeout until flag becomes true.
+// */
+// public void await(AtomicBoolean flag, long timeoutMillis) {
+// long startTime = System.nanoTime();
+// while (!flag.get()) {
+// if (millisElapsedSince(startTime) > timeoutMillis)
+// throw new AssertionFailedError("timed out");
+// Thread.yield();
+// }
+// }
+
public static class NPETask implements Callable {
public String call() { throw new NullPointerException(); }
}
@@ -643,59 +1122,62 @@ public class JSR166TestCase extends Test
public class ShortRunnable extends CheckedRunnable {
protected void realRun() throws Throwable {
- Thread.sleep(SHORT_DELAY_MS);
+ delay(SHORT_DELAY_MS);
}
}
public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
protected void realRun() throws InterruptedException {
- Thread.sleep(SHORT_DELAY_MS);
+ delay(SHORT_DELAY_MS);
}
}
public class SmallRunnable extends CheckedRunnable {
protected void realRun() throws Throwable {
- Thread.sleep(SMALL_DELAY_MS);
+ delay(SMALL_DELAY_MS);
}
}
public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
protected void realRun() {
try {
- Thread.sleep(SMALL_DELAY_MS);
+ delay(SMALL_DELAY_MS);
} catch (InterruptedException ok) {}
}
}
public class SmallCallable extends CheckedCallable {
protected Object realCall() throws InterruptedException {
- Thread.sleep(SMALL_DELAY_MS);
+ delay(SMALL_DELAY_MS);
return Boolean.TRUE;
}
}
- public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
- protected void realRun() throws InterruptedException {
- Thread.sleep(SMALL_DELAY_MS);
- }
- }
-
public class MediumRunnable extends CheckedRunnable {
protected void realRun() throws Throwable {
- Thread.sleep(MEDIUM_DELAY_MS);
+ delay(MEDIUM_DELAY_MS);
}
}
public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
protected void realRun() throws InterruptedException {
- Thread.sleep(MEDIUM_DELAY_MS);
+ delay(MEDIUM_DELAY_MS);
}
}
+ public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
+ return new CheckedRunnable() {
+ protected void realRun() {
+ try {
+ delay(timeoutMillis);
+ } catch (InterruptedException ok) {}
+ }};
+ }
+
public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
protected void realRun() {
try {
- Thread.sleep(MEDIUM_DELAY_MS);
+ delay(MEDIUM_DELAY_MS);
} catch (InterruptedException ok) {}
}
}
@@ -703,7 +1185,7 @@ public class JSR166TestCase extends Test
public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
protected void realRun() {
try {
- Thread.sleep(LONG_DELAY_MS);
+ delay(LONG_DELAY_MS);
} catch (InterruptedException ok) {}
}
}
@@ -717,11 +1199,38 @@ public class JSR166TestCase extends Test
}
}
+ public interface TrackedRunnable extends Runnable {
+ boolean isDone();
+ }
+
+ public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
+ return new TrackedRunnable() {
+ private volatile boolean done = false;
+ public boolean isDone() { return done; }
+ public void run() {
+ try {
+ delay(timeoutMillis);
+ done = true;
+ } catch (InterruptedException ok) {}
+ }
+ };
+ }
+
public static class TrackedShortRunnable implements Runnable {
public volatile boolean done = false;
public void run() {
try {
- Thread.sleep(SMALL_DELAY_MS);
+ delay(SHORT_DELAY_MS);
+ done = true;
+ } catch (InterruptedException ok) {}
+ }
+ }
+
+ public static class TrackedSmallRunnable implements Runnable {
+ public volatile boolean done = false;
+ public void run() {
+ try {
+ delay(SMALL_DELAY_MS);
done = true;
} catch (InterruptedException ok) {}
}
@@ -731,7 +1240,7 @@ public class JSR166TestCase extends Test
public volatile boolean done = false;
public void run() {
try {
- Thread.sleep(MEDIUM_DELAY_MS);
+ delay(MEDIUM_DELAY_MS);
done = true;
} catch (InterruptedException ok) {}
}
@@ -741,7 +1250,7 @@ public class JSR166TestCase extends Test
public volatile boolean done = false;
public void run() {
try {
- Thread.sleep(LONG_DELAY_MS);
+ delay(LONG_DELAY_MS);
done = true;
} catch (InterruptedException ok) {}
}
@@ -758,13 +1267,43 @@ public class JSR166TestCase extends Test
public volatile boolean done = false;
public Object call() {
try {
- Thread.sleep(SMALL_DELAY_MS);
+ delay(SMALL_DELAY_MS);
done = true;
} catch (InterruptedException ok) {}
return Boolean.TRUE;
}
}
+ /**
+ * Analog of CheckedRunnable for RecursiveAction
+ */
+ public abstract class CheckedRecursiveAction extends RecursiveAction {
+ protected abstract void realCompute() throws Throwable;
+
+ @Override protected final void compute() {
+ try {
+ realCompute();
+ } catch (Throwable t) {
+ threadUnexpectedException(t);
+ }
+ }
+ }
+
+ /**
+ * Analog of CheckedCallable for RecursiveTask
+ */
+ public abstract class CheckedRecursiveTask extends RecursiveTask {
+ protected abstract T realCompute() throws Throwable;
+
+ @Override protected final T compute() {
+ try {
+ return realCompute();
+ } catch (Throwable t) {
+ threadUnexpectedException(t);
+ return null;
+ }
+ }
+ }
/**
* For use as RejectedExecutionHandler in constructors
@@ -774,4 +1313,108 @@ public class JSR166TestCase extends Test
ThreadPoolExecutor executor) {}
}
+ /**
+ * A CyclicBarrier that uses timed await and fails with
+ * AssertionFailedErrors instead of throwing checked exceptions.
+ */
+ public class CheckedBarrier extends CyclicBarrier {
+ public CheckedBarrier(int parties) { super(parties); }
+
+ public int await() {
+ try {
+ return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
+ } catch (TimeoutException e) {
+ throw new AssertionFailedError("timed out");
+ } catch (Exception e) {
+ AssertionFailedError afe =
+ new AssertionFailedError("Unexpected exception: " + e);
+ afe.initCause(e);
+ throw afe;
+ }
+ }
+ }
+
+ void checkEmpty(BlockingQueue q) {
+ try {
+ assertTrue(q.isEmpty());
+ assertEquals(0, q.size());
+ assertNull(q.peek());
+ assertNull(q.poll());
+ assertNull(q.poll(0, MILLISECONDS));
+ assertEquals(q.toString(), "[]");
+ assertTrue(Arrays.equals(q.toArray(), new Object[0]));
+ assertFalse(q.iterator().hasNext());
+ try {
+ q.element();
+ shouldThrow();
+ } catch (NoSuchElementException success) {}
+ try {
+ q.iterator().next();
+ shouldThrow();
+ } catch (NoSuchElementException success) {}
+ try {
+ q.remove();
+ shouldThrow();
+ } catch (NoSuchElementException success) {}
+ } catch (InterruptedException ie) {
+ threadUnexpectedException(ie);
+ }
+ }
+
+ void assertSerialEquals(Object x, Object y) {
+ assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
+ }
+
+ void assertNotSerialEquals(Object x, Object y) {
+ assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
+ }
+
+ byte[] serialBytes(Object o) {
+ try {
+ ByteArrayOutputStream bos = new ByteArrayOutputStream();
+ ObjectOutputStream oos = new ObjectOutputStream(bos);
+ oos.writeObject(o);
+ oos.flush();
+ oos.close();
+ return bos.toByteArray();
+ } catch (Throwable t) {
+ threadUnexpectedException(t);
+ return new byte[0];
+ }
+ }
+
+ @SuppressWarnings("unchecked")
+ T serialClone(T o) {
+ try {
+ ObjectInputStream ois = new ObjectInputStream
+ (new ByteArrayInputStream(serialBytes(o)));
+ T clone = (T) ois.readObject();
+ assertSame(o.getClass(), clone.getClass());
+ return clone;
+ } catch (Throwable t) {
+ threadUnexpectedException(t);
+ return null;
+ }
+ }
+
+ public void assertThrows(Class expectedExceptionClass,
+ Runnable... throwingActions) {
+ for (Runnable throwingAction : throwingActions) {
+ boolean threw = false;
+ try { throwingAction.run(); }
+ catch (Throwable t) {
+ threw = true;
+ if (!expectedExceptionClass.isInstance(t)) {
+ AssertionFailedError afe =
+ new AssertionFailedError
+ ("Expected " + expectedExceptionClass.getName() +
+ ", got " + t.getClass().getName());
+ afe.initCause(t);
+ threadUnexpectedException(afe);
+ }
+ }
+ if (!threw)
+ shouldThrow(expectedExceptionClass.getName());
+ }
+ }
}