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root/jsr166/jsr166/src/test/tck/JSR166TestCase.java

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.163 by jsr166, Sun Oct 4 05:52:08 2015 UTC vs.
Revision 1.189 by jsr166, Fri Mar 4 21:00:45 2016 UTC

#	Line 6 | Line 6
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;
#	Line 20 | Line 28 | 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;
#	Line 51 | Line 61 | import java.util.concurrent.Semaphore;
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;
#	Line 109 | Line 121 | import junit.framework.TestSuite;
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
113	<	* isolation.
124	>	* cover multiple methods when they cannot be tested in isolation.
125		*
126		* <li>The documentation style for testcases is to provide as javadoc
127		* a simple sentence or two describing the property that the testcase
#	Line 173 | Line 184 | public class JSR166TestCase extends Test
184		private static final int suiteRuns =
185		Integer.getInteger("jsr166.suiteRuns", 1);
186
187	+	/**
188	+	* Returns the value of the system property, or NaN if not defined.
189	+	*/
190	+	private static float systemPropertyValue(String name) {
191	+	String floatString = System.getProperty(name);
192	+	if (floatString == null)
193	+	return Float.NaN;
194	+	try {
195	+	return Float.parseFloat(floatString);
196	+	} catch (NumberFormatException ex) {
197	+	throw new IllegalArgumentException(
198	+	String.format("Bad float value in system property %s=%s",
199	+	name, floatString));
200	+	}
201	+	}
202	+
203	+	/**
204	+	* The scaling factor to apply to standard delays used in tests.
205	+	* May be initialized from any of:
206	+	* - the "jsr166.delay.factor" system property
207	+	* - the "test.timeout.factor" system property (as used by jtreg)
208	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
209	+	* - hard-coded fuzz factor when using a known slowpoke VM
210	+	*/
211	+	private static final float delayFactor = delayFactor();
212	+
213	+	private static float delayFactor() {
214	+	float x;
215	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
216	+	return x;
217	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
218	+	return x;
219	+	String prop = System.getProperty("java.vm.version");
220	+	if (prop != null && prop.matches(".*debug.*"))
221	+	return 4.0f; // How much slower is fastdebug than product?!
222	+	return 1.0f;
223	+	}
224	+
225		public JSR166TestCase() { super(); }
226		public JSR166TestCase(String name) { super(name); }
227
#	Line 188 | Line 237 | public class JSR166TestCase extends Test
237		return (regex == null) ? null : Pattern.compile(regex);
238		}
239
240	+	// Instrumentation to debug very rare, but very annoying hung test runs.
241		static volatile TestCase currentTestCase;
242	+	// static volatile int currentRun = 0;
243		static {
244		Runnable checkForWedgedTest = new Runnable() { public void run() {
245	<	// avoid spurious reports with enormous runsPerTest
246	<	final int timeoutMinutes = Math.max(runsPerTest / 10, 1);
245	>	// Avoid spurious reports with enormous runsPerTest.
246	>	// A single test case run should never take more than 1 second.
247	>	// But let's cap it at the high end too ...
248	>	final int timeoutMinutes =
249	>	Math.min(15, Math.max(runsPerTest / 60, 1));
250		for (TestCase lastTestCase = currentTestCase;;) {
251		try { MINUTES.sleep(timeoutMinutes); }
252		catch (InterruptedException unexpected) { break; }
253		if (lastTestCase == currentTestCase) {
254	<	System.err.println
255	<	("Looks like we're stuck running test: "
256	<	+ lastTestCase);
254	>	System.err.printf(
255	>	"Looks like we're stuck running test: %s%n",
256	>	lastTestCase);
257	>	//                     System.err.printf(
258	>	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
259	>	//                         lastTestCase, currentRun, runsPerTest);
260	>	//                     System.err.println("availableProcessors=" +
261	>	//                         Runtime.getRuntime().availableProcessors());
262	>	//                     System.err.printf("cpu model = %s%n", cpuModel());
263		dumpTestThreads();
264	+	// one stack dump is probably enough; more would be spam
265	+	break;
266		}
267		lastTestCase = currentTestCase;
268		}}};
#	Line 209 | Line 271 | public class JSR166TestCase extends Test
271		thread.start();
272		}
273
274	+	//     public static String cpuModel() {
275	+	//         try {
276	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
277	+	//                 .matcher(new String(
278	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
279	+	//             matcher.find();
280	+	//             return matcher.group(1);
281	+	//         } catch (Exception ex) { return null; }
282	+	//     }
283	+
284		public void runBare() throws Throwable {
285		currentTestCase = this;
286		if (methodFilter == null
#	Line 218 | Line 290 | public class JSR166TestCase extends Test
290
291		protected void runTest() throws Throwable {
292		for (int i = 0; i < runsPerTest; i++) {
293	+	// currentRun = i;
294		if (profileTests)
295		runTestProfiled();
296		else
#	Line 246 | Line 319 | public class JSR166TestCase extends Test
319		main(suite(), args);
320		}
321
322	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
323	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
324	+	long runTime;
325	+	public void startTest(Test test) {}
326	+	protected void printHeader(long runTime) {
327	+	this.runTime = runTime; // defer printing for later
328	+	}
329	+	protected void printFooter(TestResult result) {
330	+	if (result.wasSuccessful()) {
331	+	getWriter().println("OK (" + result.runCount() + " tests)"
332	+	+ "  Time: " + elapsedTimeAsString(runTime));
333	+	} else {
334	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
335	+	super.printFooter(result);
336	+	}
337	+	}
338	+	}
339	+
340	+	/**
341	+	* Returns a TestRunner that doesn't bother with unnecessary
342	+	* fluff, like printing a "." for each test case.
343	+	*/
344	+	static junit.textui.TestRunner newPithyTestRunner() {
345	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
346	+	runner.setPrinter(new PithyResultPrinter(System.out));
347	+	return runner;
348	+	}
349	+
350		/**
351		* Runs all unit tests in the given test suite.
352		* Actual behavior influenced by jsr166.* system properties.
#	Line 257 | Line 358 | public class JSR166TestCase extends Test
358		System.setSecurityManager(new SecurityManager());
359		}
360		for (int i = 0; i < suiteRuns; i++) {
361	<	TestResult result = junit.textui.TestRunner.run(suite);
361	>	TestResult result = newPithyTestRunner().doRun(suite);
362		if (!result.wasSuccessful())
363		System.exit(1);
364		System.gc();
#	Line 494 | Line 595 | public class JSR166TestCase extends Test
595		public static long LONG_DELAY_MS;
596
597		/**
598	<	* Returns the shortest timed delay. This could
599	<	* be reimplemented to use for example a Property.
598	>	* Returns the shortest timed delay. This can be scaled up for
599	>	* slow machines using the jsr166.delay.factor system property,
600	>	* or via jtreg's -timeoutFactor: flag.
601	>	* http://openjdk.java.net/jtreg/command-help.html
602		*/
603		protected long getShortDelay() {
604	<	return 50;
604	>	return (long) (50 * delayFactor);
605		}
606
607		/**
#	Line 590 | Line 693 | public class JSR166TestCase extends Test
693		}
694
695		/**
696	<	* Finds missing try { ... } finally { joinPool(e); }
696	>	* Finds missing PoolCleaners
697		*/
698		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
699		Thread[] survivors = new Thread[7];
#	Line 774 | Line 877 | public class JSR166TestCase extends Test
877		public void close() { joinPool(pool); }
878		}
879
880	+	/**
881	+	* An extension of PoolCleaner that has an action to release the pool.
882	+	*/
883	+	class PoolCleanerWithReleaser extends PoolCleaner {
884	+	private final Runnable releaser;
885	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
886	+	super(pool);
887	+	this.releaser = releaser;
888	+	}
889	+	public void close() {
890	+	try {
891	+	releaser.run();
892	+	} finally {
893	+	super.close();
894	+	}
895	+	}
896	+	}
897	+
898		PoolCleaner cleaner(ExecutorService pool) {
899		return new PoolCleaner(pool);
900		}
901
902	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
903	+	return new PoolCleanerWithReleaser(pool, releaser);
904	+	}
905	+
906	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
907	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
908	+	}
909	+
910	+	Runnable releaser(final CountDownLatch latch) {
911	+	return new Runnable() { public void run() {
912	+	do { latch.countDown(); }
913	+	while (latch.getCount() > 0);
914	+	}};
915	+	}
916	+
917	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
918	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
919	+	}
920	+
921	+	Runnable releaser(final AtomicBoolean flag) {
922	+	return new Runnable() { public void run() { flag.set(true); }};
923	+	}
924	+
925		/**
926		* Waits out termination of a thread pool or fails doing so.
927		*/
#	Line 791 | Line 935 | public class JSR166TestCase extends Test
935		} finally {
936		// last resort, for the benefit of subsequent tests
937		pool.shutdownNow();
938	<	pool.awaitTermination(SMALL_DELAY_MS, MILLISECONDS);
938	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
939		}
940		}
941		} catch (SecurityException ok) {
#	Line 1168 | Line 1312 | public class JSR166TestCase extends Test
1312		} finally {
1313		if (t.getState() != Thread.State.TERMINATED) {
1314		t.interrupt();
1315	<	fail("Test timed out");
1315	>	threadFail("timed out waiting for thread to terminate");
1316		}
1317		}
1318		}
#	Line 1334 | Line 1478 | public class JSR166TestCase extends Test
1478		return new LatchAwaiter(latch);
1479		}
1480
1481	<	public void await(CountDownLatch latch) {
1481	>	public void await(CountDownLatch latch, long timeoutMillis) {
1482		try {
1483	<	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1483	>	if (!latch.await(timeoutMillis, MILLISECONDS))
1484	>	fail("timed out waiting for CountDownLatch for "
1485	>	+ (timeoutMillis/1000) + " sec");
1486		} catch (Throwable fail) {
1487		threadUnexpectedException(fail);
1488		}
1489		}
1490
1491	+	public void await(CountDownLatch latch) {
1492	+	await(latch, LONG_DELAY_MS);
1493	+	}
1494	+
1495		public void await(Semaphore semaphore) {
1496		try {
1497	<	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1497	>	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1498	>	fail("timed out waiting for Semaphore for "
1499	>	+ (LONG_DELAY_MS/1000) + " sec");
1500		} catch (Throwable fail) {
1501		threadUnexpectedException(fail);
1502		}

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