1 |
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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
4 |
> |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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|
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import junit.framework.*; |
10 |
– |
import java.util.PropertyPermission; |
11 |
– |
import java.util.concurrent.*; |
12 |
– |
import java.util.concurrent.atomic.AtomicReference; |
9 |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
11 |
+ |
|
12 |
+ |
import java.io.ByteArrayInputStream; |
13 |
+ |
import java.io.ByteArrayOutputStream; |
14 |
+ |
import java.io.ObjectInputStream; |
15 |
+ |
import java.io.ObjectOutputStream; |
16 |
+ |
import java.lang.management.ManagementFactory; |
17 |
+ |
import java.lang.management.ThreadInfo; |
18 |
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import java.lang.reflect.Method; |
19 |
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import java.security.CodeSource; |
20 |
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import java.security.Permission; |
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import java.security.PermissionCollection; |
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import java.security.Policy; |
24 |
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import java.security.ProtectionDomain; |
25 |
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import java.security.SecurityPermission; |
26 |
+ |
import java.util.ArrayList; |
27 |
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import java.util.Arrays; |
28 |
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import java.util.Date; |
29 |
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import java.util.Enumeration; |
30 |
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import java.util.Iterator; |
31 |
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import java.util.List; |
32 |
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import java.util.NoSuchElementException; |
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import java.util.PropertyPermission; |
34 |
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import java.util.concurrent.BlockingQueue; |
35 |
+ |
import java.util.concurrent.Callable; |
36 |
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import java.util.concurrent.CountDownLatch; |
37 |
+ |
import java.util.concurrent.CyclicBarrier; |
38 |
+ |
import java.util.concurrent.ExecutorService; |
39 |
+ |
import java.util.concurrent.Future; |
40 |
+ |
import java.util.concurrent.RecursiveAction; |
41 |
+ |
import java.util.concurrent.RecursiveTask; |
42 |
+ |
import java.util.concurrent.RejectedExecutionHandler; |
43 |
+ |
import java.util.concurrent.Semaphore; |
44 |
+ |
import java.util.concurrent.ThreadFactory; |
45 |
+ |
import java.util.concurrent.ThreadPoolExecutor; |
46 |
+ |
import java.util.concurrent.TimeoutException; |
47 |
+ |
import java.util.concurrent.atomic.AtomicReference; |
48 |
+ |
import java.util.regex.Pattern; |
49 |
+ |
|
50 |
+ |
import junit.framework.AssertionFailedError; |
51 |
+ |
import junit.framework.Test; |
52 |
+ |
import junit.framework.TestCase; |
53 |
+ |
import junit.framework.TestResult; |
54 |
+ |
import junit.framework.TestSuite; |
55 |
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|
56 |
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/** |
57 |
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* Base class for JSR166 Junit TCK tests. Defines some constants, |
94 |
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* |
95 |
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* </ol> |
96 |
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* |
97 |
< |
* <p> <b>Other notes</b> |
97 |
> |
* <p><b>Other notes</b> |
98 |
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* <ul> |
99 |
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* |
100 |
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* <li> Usually, there is one testcase method per JSR166 method |
134 |
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Boolean.getBoolean("jsr166.expensiveTests"); |
135 |
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|
136 |
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/** |
137 |
+ |
* If true, also run tests that are not part of the official tck |
138 |
+ |
* because they test unspecified implementation details. |
139 |
+ |
*/ |
140 |
+ |
protected static final boolean testImplementationDetails = |
141 |
+ |
Boolean.getBoolean("jsr166.testImplementationDetails"); |
142 |
+ |
|
143 |
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/** |
144 |
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* If true, report on stdout all "slow" tests, that is, ones that |
145 |
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* take more than profileThreshold milliseconds to execute. |
146 |
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*/ |
154 |
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private static final long profileThreshold = |
155 |
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Long.getLong("jsr166.profileThreshold", 100); |
156 |
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|
157 |
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/** |
158 |
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* The number of repetitions per test (for tickling rare bugs). |
159 |
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*/ |
160 |
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private static final int runsPerTest = |
161 |
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Integer.getInteger("jsr166.runsPerTest", 1); |
162 |
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|
163 |
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/** |
164 |
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* The number of repetitions of the test suite (for finding leaks?). |
165 |
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*/ |
166 |
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private static final int suiteRuns = |
167 |
+ |
Integer.getInteger("jsr166.suiteRuns", 1); |
168 |
+ |
|
169 |
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/** |
170 |
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* A filter for tests to run, matching strings of the form |
171 |
+ |
* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)" |
172 |
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* Usefully combined with jsr166.runsPerTest. |
173 |
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*/ |
174 |
+ |
private static final Pattern methodFilter = methodFilter(); |
175 |
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|
176 |
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private static Pattern methodFilter() { |
177 |
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String regex = System.getProperty("jsr166.methodFilter"); |
178 |
+ |
return (regex == null) ? null : Pattern.compile(regex); |
179 |
+ |
} |
180 |
+ |
|
181 |
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protected void runTest() throws Throwable { |
182 |
< |
if (profileTests) |
183 |
< |
runTestProfiled(); |
184 |
< |
else |
185 |
< |
super.runTest(); |
182 |
> |
if (methodFilter == null |
183 |
> |
|| methodFilter.matcher(toString()).find()) { |
184 |
> |
for (int i = 0; i < runsPerTest; i++) { |
185 |
> |
if (profileTests) |
186 |
> |
runTestProfiled(); |
187 |
> |
else |
188 |
> |
super.runTest(); |
189 |
> |
} |
190 |
> |
} |
191 |
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} |
192 |
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|
193 |
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protected void runTestProfiled() throws Throwable { |
194 |
+ |
// Warmup run, notably to trigger all needed classloading. |
195 |
+ |
super.runTest(); |
196 |
|
long t0 = System.nanoTime(); |
197 |
|
try { |
198 |
|
super.runTest(); |
199 |
|
} finally { |
200 |
< |
long elapsedMillis = |
130 |
< |
(System.nanoTime() - t0) / (1000L * 1000L); |
200 |
> |
long elapsedMillis = millisElapsedSince(t0); |
201 |
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if (elapsedMillis >= profileThreshold) |
202 |
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System.out.printf("%n%s: %d%n", toString(), elapsedMillis); |
203 |
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} |
204 |
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} |
205 |
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|
206 |
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/** |
207 |
< |
* Runs all JSR166 unit tests using junit.textui.TestRunner |
207 |
> |
* Runs all JSR166 unit tests using junit.textui.TestRunner. |
208 |
|
*/ |
209 |
|
public static void main(String[] args) { |
210 |
+ |
main(suite(), args); |
211 |
+ |
} |
212 |
+ |
|
213 |
+ |
/** |
214 |
+ |
* Runs all unit tests in the given test suite. |
215 |
+ |
* Actual behavior influenced by jsr166.* system properties. |
216 |
+ |
*/ |
217 |
+ |
static void main(Test suite, String[] args) { |
218 |
|
if (useSecurityManager) { |
219 |
|
System.err.println("Setting a permissive security manager"); |
220 |
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Policy.setPolicy(permissivePolicy()); |
221 |
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System.setSecurityManager(new SecurityManager()); |
222 |
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} |
223 |
< |
int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]); |
224 |
< |
|
225 |
< |
Test s = suite(); |
226 |
< |
for (int i = 0; i < iters; ++i) { |
149 |
< |
junit.textui.TestRunner.run(s); |
223 |
> |
for (int i = 0; i < suiteRuns; i++) { |
224 |
> |
TestResult result = junit.textui.TestRunner.run(suite); |
225 |
> |
if (!result.wasSuccessful()) |
226 |
> |
System.exit(1); |
227 |
|
System.gc(); |
228 |
|
System.runFinalization(); |
229 |
|
} |
153 |
– |
System.exit(0); |
230 |
|
} |
231 |
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|
232 |
|
public static TestSuite newTestSuite(Object... suiteOrClasses) { |
242 |
|
return suite; |
243 |
|
} |
244 |
|
|
245 |
+ |
public static void addNamedTestClasses(TestSuite suite, |
246 |
+ |
String... testClassNames) { |
247 |
+ |
for (String testClassName : testClassNames) { |
248 |
+ |
try { |
249 |
+ |
Class<?> testClass = Class.forName(testClassName); |
250 |
+ |
Method m = testClass.getDeclaredMethod("suite", |
251 |
+ |
new Class<?>[0]); |
252 |
+ |
suite.addTest(newTestSuite((Test)m.invoke(null))); |
253 |
+ |
} catch (Exception e) { |
254 |
+ |
throw new Error("Missing test class", e); |
255 |
+ |
} |
256 |
+ |
} |
257 |
+ |
} |
258 |
+ |
|
259 |
+ |
public static final double JAVA_CLASS_VERSION; |
260 |
+ |
public static final String JAVA_SPECIFICATION_VERSION; |
261 |
+ |
static { |
262 |
+ |
try { |
263 |
+ |
JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged( |
264 |
+ |
new java.security.PrivilegedAction<Double>() { |
265 |
+ |
public Double run() { |
266 |
+ |
return Double.valueOf(System.getProperty("java.class.version"));}}); |
267 |
+ |
JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged( |
268 |
+ |
new java.security.PrivilegedAction<String>() { |
269 |
+ |
public String run() { |
270 |
+ |
return System.getProperty("java.specification.version");}}); |
271 |
+ |
} catch (Throwable t) { |
272 |
+ |
throw new Error(t); |
273 |
+ |
} |
274 |
+ |
} |
275 |
+ |
|
276 |
+ |
public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; } |
277 |
+ |
public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; } |
278 |
+ |
public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; } |
279 |
+ |
public static boolean atLeastJava9() { return JAVA_CLASS_VERSION >= 53.0; } |
280 |
+ |
|
281 |
|
/** |
282 |
|
* Collects all JSR166 unit tests as one suite. |
283 |
|
*/ |
284 |
|
public static Test suite() { |
285 |
< |
return newTestSuite( |
285 |
> |
// Java7+ test classes |
286 |
> |
TestSuite suite = newTestSuite( |
287 |
|
ForkJoinPoolTest.suite(), |
288 |
|
ForkJoinTaskTest.suite(), |
289 |
|
RecursiveActionTest.suite(), |
348 |
|
TreeSetTest.suite(), |
349 |
|
TreeSubMapTest.suite(), |
350 |
|
TreeSubSetTest.suite()); |
351 |
+ |
|
352 |
+ |
// Java8+ test classes |
353 |
+ |
if (atLeastJava8()) { |
354 |
+ |
String[] java8TestClassNames = { |
355 |
+ |
"Atomic8Test", |
356 |
+ |
"CompletableFutureTest", |
357 |
+ |
"ConcurrentHashMap8Test", |
358 |
+ |
"CountedCompleterTest", |
359 |
+ |
"DoubleAccumulatorTest", |
360 |
+ |
"DoubleAdderTest", |
361 |
+ |
"ForkJoinPool8Test", |
362 |
+ |
"ForkJoinTask8Test", |
363 |
+ |
"LongAccumulatorTest", |
364 |
+ |
"LongAdderTest", |
365 |
+ |
"SplittableRandomTest", |
366 |
+ |
"StampedLockTest", |
367 |
+ |
"ThreadLocalRandom8Test", |
368 |
+ |
}; |
369 |
+ |
addNamedTestClasses(suite, java8TestClassNames); |
370 |
+ |
} |
371 |
+ |
|
372 |
+ |
// Java9+ test classes |
373 |
+ |
if (atLeastJava9()) { |
374 |
+ |
String[] java9TestClassNames = { |
375 |
+ |
"ThreadPoolExecutor9Test", |
376 |
+ |
}; |
377 |
+ |
addNamedTestClasses(suite, java9TestClassNames); |
378 |
+ |
} |
379 |
+ |
|
380 |
+ |
return suite; |
381 |
|
} |
382 |
|
|
383 |
+ |
// Delays for timing-dependent tests, in milliseconds. |
384 |
|
|
385 |
|
public static long SHORT_DELAY_MS; |
386 |
|
public static long SMALL_DELAY_MS; |
387 |
|
public static long MEDIUM_DELAY_MS; |
388 |
|
public static long LONG_DELAY_MS; |
389 |
|
|
246 |
– |
|
390 |
|
/** |
391 |
|
* Returns the shortest timed delay. This could |
392 |
|
* be reimplemented to use for example a Property. |
395 |
|
return 50; |
396 |
|
} |
397 |
|
|
255 |
– |
|
398 |
|
/** |
399 |
|
* Sets delays as multiples of SHORT_DELAY. |
400 |
|
*/ |
402 |
|
SHORT_DELAY_MS = getShortDelay(); |
403 |
|
SMALL_DELAY_MS = SHORT_DELAY_MS * 5; |
404 |
|
MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10; |
405 |
< |
LONG_DELAY_MS = SHORT_DELAY_MS * 50; |
405 |
> |
LONG_DELAY_MS = SHORT_DELAY_MS * 200; |
406 |
> |
} |
407 |
> |
|
408 |
> |
/** |
409 |
> |
* Returns a timeout in milliseconds to be used in tests that |
410 |
> |
* verify that operations block or time out. |
411 |
> |
*/ |
412 |
> |
long timeoutMillis() { |
413 |
> |
return SHORT_DELAY_MS / 4; |
414 |
> |
} |
415 |
> |
|
416 |
> |
/** |
417 |
> |
* Returns a new Date instance representing a time delayMillis |
418 |
> |
* milliseconds in the future. |
419 |
> |
*/ |
420 |
> |
Date delayedDate(long delayMillis) { |
421 |
> |
return new Date(System.currentTimeMillis() + delayMillis); |
422 |
|
} |
423 |
|
|
424 |
|
/** |
442 |
|
} |
443 |
|
|
444 |
|
/** |
445 |
+ |
* Extra checks that get done for all test cases. |
446 |
+ |
* |
447 |
|
* Triggers test case failure if any thread assertions have failed, |
448 |
|
* by rethrowing, in the test harness thread, any exception recorded |
449 |
|
* earlier by threadRecordFailure. |
450 |
+ |
* |
451 |
+ |
* Triggers test case failure if interrupt status is set in the main thread. |
452 |
|
*/ |
453 |
|
public void tearDown() throws Exception { |
454 |
|
Throwable t = threadFailure.getAndSet(null); |
466 |
|
throw afe; |
467 |
|
} |
468 |
|
} |
469 |
+ |
|
470 |
+ |
if (Thread.interrupted()) |
471 |
+ |
throw new AssertionFailedError("interrupt status set in main thread"); |
472 |
+ |
|
473 |
+ |
checkForkJoinPoolThreadLeaks(); |
474 |
+ |
} |
475 |
+ |
|
476 |
+ |
/** |
477 |
+ |
* Finds missing try { ... } finally { joinPool(e); } |
478 |
+ |
*/ |
479 |
+ |
void checkForkJoinPoolThreadLeaks() throws InterruptedException { |
480 |
+ |
Thread[] survivors = new Thread[5]; |
481 |
+ |
int count = Thread.enumerate(survivors); |
482 |
+ |
for (int i = 0; i < count; i++) { |
483 |
+ |
Thread thread = survivors[i]; |
484 |
+ |
String name = thread.getName(); |
485 |
+ |
if (name.startsWith("ForkJoinPool-")) { |
486 |
+ |
// give thread some time to terminate |
487 |
+ |
thread.join(LONG_DELAY_MS); |
488 |
+ |
if (!thread.isAlive()) continue; |
489 |
+ |
thread.stop(); |
490 |
+ |
throw new AssertionFailedError |
491 |
+ |
(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n", |
492 |
+ |
toString(), name)); |
493 |
+ |
} |
494 |
+ |
} |
495 |
|
} |
496 |
|
|
497 |
|
/** |
572 |
|
public void threadAssertEquals(Object x, Object y) { |
573 |
|
try { |
574 |
|
assertEquals(x, y); |
575 |
< |
} catch (AssertionFailedError t) { |
576 |
< |
threadRecordFailure(t); |
577 |
< |
throw t; |
578 |
< |
} catch (Throwable t) { |
579 |
< |
threadUnexpectedException(t); |
575 |
> |
} catch (AssertionFailedError fail) { |
576 |
> |
threadRecordFailure(fail); |
577 |
> |
throw fail; |
578 |
> |
} catch (Throwable fail) { |
579 |
> |
threadUnexpectedException(fail); |
580 |
|
} |
581 |
|
} |
582 |
|
|
588 |
|
public void threadAssertSame(Object x, Object y) { |
589 |
|
try { |
590 |
|
assertSame(x, y); |
591 |
< |
} catch (AssertionFailedError t) { |
592 |
< |
threadRecordFailure(t); |
593 |
< |
throw t; |
591 |
> |
} catch (AssertionFailedError fail) { |
592 |
> |
threadRecordFailure(fail); |
593 |
> |
throw fail; |
594 |
|
} |
595 |
|
} |
596 |
|
|
623 |
|
else { |
624 |
|
AssertionFailedError afe = |
625 |
|
new AssertionFailedError("unexpected exception: " + t); |
626 |
< |
t.initCause(t); |
626 |
> |
afe.initCause(t); |
627 |
|
throw afe; |
628 |
|
} |
629 |
|
} |
630 |
|
|
631 |
|
/** |
632 |
+ |
* Delays, via Thread.sleep, for the given millisecond delay, but |
633 |
+ |
* if the sleep is shorter than specified, may re-sleep or yield |
634 |
+ |
* until time elapses. |
635 |
+ |
*/ |
636 |
+ |
static void delay(long millis) throws InterruptedException { |
637 |
+ |
long startTime = System.nanoTime(); |
638 |
+ |
long ns = millis * 1000 * 1000; |
639 |
+ |
for (;;) { |
640 |
+ |
if (millis > 0L) |
641 |
+ |
Thread.sleep(millis); |
642 |
+ |
else // too short to sleep |
643 |
+ |
Thread.yield(); |
644 |
+ |
long d = ns - (System.nanoTime() - startTime); |
645 |
+ |
if (d > 0L) |
646 |
+ |
millis = d / (1000 * 1000); |
647 |
+ |
else |
648 |
+ |
break; |
649 |
+ |
} |
650 |
+ |
} |
651 |
+ |
|
652 |
+ |
/** |
653 |
|
* Waits out termination of a thread pool or fails doing so. |
654 |
|
*/ |
655 |
< |
public void joinPool(ExecutorService exec) { |
655 |
> |
void joinPool(ExecutorService exec) { |
656 |
|
try { |
657 |
|
exec.shutdown(); |
658 |
< |
assertTrue("ExecutorService did not terminate in a timely manner", |
659 |
< |
exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
658 |
> |
if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) |
659 |
> |
fail("ExecutorService " + exec + |
660 |
> |
" did not terminate in a timely manner"); |
661 |
|
} catch (SecurityException ok) { |
662 |
|
// Allowed in case test doesn't have privs |
663 |
< |
} catch (InterruptedException ie) { |
663 |
> |
} catch (InterruptedException fail) { |
664 |
> |
fail("Unexpected InterruptedException"); |
665 |
> |
} |
666 |
> |
} |
667 |
> |
|
668 |
> |
/** |
669 |
> |
* A debugging tool to print all stack traces, as jstack does. |
670 |
> |
*/ |
671 |
> |
static void printAllStackTraces() { |
672 |
> |
for (ThreadInfo info : |
673 |
> |
ManagementFactory.getThreadMXBean() |
674 |
> |
.dumpAllThreads(true, true)) |
675 |
> |
System.err.print(info); |
676 |
> |
} |
677 |
> |
|
678 |
> |
/** |
679 |
> |
* Checks that thread does not terminate within the default |
680 |
> |
* millisecond delay of {@code timeoutMillis()}. |
681 |
> |
*/ |
682 |
> |
void assertThreadStaysAlive(Thread thread) { |
683 |
> |
assertThreadStaysAlive(thread, timeoutMillis()); |
684 |
> |
} |
685 |
> |
|
686 |
> |
/** |
687 |
> |
* Checks that thread does not terminate within the given millisecond delay. |
688 |
> |
*/ |
689 |
> |
void assertThreadStaysAlive(Thread thread, long millis) { |
690 |
> |
try { |
691 |
> |
// No need to optimize the failing case via Thread.join. |
692 |
> |
delay(millis); |
693 |
> |
assertTrue(thread.isAlive()); |
694 |
> |
} catch (InterruptedException fail) { |
695 |
> |
fail("Unexpected InterruptedException"); |
696 |
> |
} |
697 |
> |
} |
698 |
> |
|
699 |
> |
/** |
700 |
> |
* Checks that the threads do not terminate within the default |
701 |
> |
* millisecond delay of {@code timeoutMillis()}. |
702 |
> |
*/ |
703 |
> |
void assertThreadsStayAlive(Thread... threads) { |
704 |
> |
assertThreadsStayAlive(timeoutMillis(), threads); |
705 |
> |
} |
706 |
> |
|
707 |
> |
/** |
708 |
> |
* Checks that the threads do not terminate within the given millisecond delay. |
709 |
> |
*/ |
710 |
> |
void assertThreadsStayAlive(long millis, Thread... threads) { |
711 |
> |
try { |
712 |
> |
// No need to optimize the failing case via Thread.join. |
713 |
> |
delay(millis); |
714 |
> |
for (Thread thread : threads) |
715 |
> |
assertTrue(thread.isAlive()); |
716 |
> |
} catch (InterruptedException fail) { |
717 |
|
fail("Unexpected InterruptedException"); |
718 |
|
} |
719 |
|
} |
720 |
|
|
721 |
+ |
/** |
722 |
+ |
* Checks that future.get times out, with the default timeout of |
723 |
+ |
* {@code timeoutMillis()}. |
724 |
+ |
*/ |
725 |
+ |
void assertFutureTimesOut(Future future) { |
726 |
+ |
assertFutureTimesOut(future, timeoutMillis()); |
727 |
+ |
} |
728 |
+ |
|
729 |
+ |
/** |
730 |
+ |
* Checks that future.get times out, with the given millisecond timeout. |
731 |
+ |
*/ |
732 |
+ |
void assertFutureTimesOut(Future future, long timeoutMillis) { |
733 |
+ |
long startTime = System.nanoTime(); |
734 |
+ |
try { |
735 |
+ |
future.get(timeoutMillis, MILLISECONDS); |
736 |
+ |
shouldThrow(); |
737 |
+ |
} catch (TimeoutException success) { |
738 |
+ |
} catch (Exception fail) { |
739 |
+ |
threadUnexpectedException(fail); |
740 |
+ |
} finally { future.cancel(true); } |
741 |
+ |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
742 |
+ |
} |
743 |
|
|
744 |
|
/** |
745 |
|
* Fails with message "should throw exception". |
780 |
|
public static final Integer m6 = new Integer(-6); |
781 |
|
public static final Integer m10 = new Integer(-10); |
782 |
|
|
498 |
– |
|
783 |
|
/** |
784 |
|
* Runs Runnable r with a security policy that permits precisely |
785 |
|
* the specified permissions. If there is no current security |
791 |
|
SecurityManager sm = System.getSecurityManager(); |
792 |
|
if (sm == null) { |
793 |
|
r.run(); |
794 |
+ |
} |
795 |
+ |
runWithSecurityManagerWithPermissions(r, permissions); |
796 |
+ |
} |
797 |
+ |
|
798 |
+ |
/** |
799 |
+ |
* Runs Runnable r with a security policy that permits precisely |
800 |
+ |
* the specified permissions. If there is no current security |
801 |
+ |
* manager, a temporary one is set for the duration of the |
802 |
+ |
* Runnable. We require that any security manager permit |
803 |
+ |
* getPolicy/setPolicy. |
804 |
+ |
*/ |
805 |
+ |
public void runWithSecurityManagerWithPermissions(Runnable r, |
806 |
+ |
Permission... permissions) { |
807 |
+ |
SecurityManager sm = System.getSecurityManager(); |
808 |
+ |
if (sm == null) { |
809 |
|
Policy savedPolicy = Policy.getPolicy(); |
810 |
|
try { |
811 |
|
Policy.setPolicy(permissivePolicy()); |
812 |
|
System.setSecurityManager(new SecurityManager()); |
813 |
< |
runWithPermissions(r, permissions); |
813 |
> |
runWithSecurityManagerWithPermissions(r, permissions); |
814 |
|
} finally { |
815 |
|
System.setSecurityManager(null); |
816 |
|
Policy.setPolicy(savedPolicy); |
858 |
|
return perms.implies(p); |
859 |
|
} |
860 |
|
public void refresh() {} |
861 |
+ |
public String toString() { |
862 |
+ |
List<Permission> ps = new ArrayList<Permission>(); |
863 |
+ |
for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();) |
864 |
+ |
ps.add(e.nextElement()); |
865 |
+ |
return "AdjustablePolicy with permissions " + ps; |
866 |
+ |
} |
867 |
|
} |
868 |
|
|
869 |
|
/** |
891 |
|
*/ |
892 |
|
void sleep(long millis) { |
893 |
|
try { |
894 |
< |
Thread.sleep(millis); |
895 |
< |
} catch (InterruptedException ie) { |
894 |
> |
delay(millis); |
895 |
> |
} catch (InterruptedException fail) { |
896 |
|
AssertionFailedError afe = |
897 |
|
new AssertionFailedError("Unexpected InterruptedException"); |
898 |
< |
afe.initCause(ie); |
898 |
> |
afe.initCause(fail); |
899 |
|
throw afe; |
900 |
|
} |
901 |
|
} |
902 |
|
|
903 |
|
/** |
904 |
< |
* Sleeps until the timeout has elapsed, or interrupted. |
600 |
< |
* Does <em>NOT</em> throw InterruptedException. |
601 |
< |
*/ |
602 |
< |
void sleepTillInterrupted(long timeoutMillis) { |
603 |
< |
try { |
604 |
< |
Thread.sleep(timeoutMillis); |
605 |
< |
} catch (InterruptedException wakeup) {} |
606 |
< |
} |
607 |
< |
|
608 |
< |
/** |
609 |
< |
* Waits up to the specified number of milliseconds for the given |
904 |
> |
* Spin-waits up to the specified number of milliseconds for the given |
905 |
|
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING. |
906 |
|
*/ |
907 |
|
void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) { |
908 |
< |
long timeoutNanos = timeoutMillis * 1000L * 1000L; |
614 |
< |
long t0 = System.nanoTime(); |
908 |
> |
long startTime = System.nanoTime(); |
909 |
|
for (;;) { |
910 |
|
Thread.State s = thread.getState(); |
911 |
|
if (s == Thread.State.BLOCKED || |
914 |
|
return; |
915 |
|
else if (s == Thread.State.TERMINATED) |
916 |
|
fail("Unexpected thread termination"); |
917 |
< |
else if (System.nanoTime() - t0 > timeoutNanos) { |
917 |
> |
else if (millisElapsedSince(startTime) > timeoutMillis) { |
918 |
|
threadAssertTrue(thread.isAlive()); |
919 |
|
return; |
920 |
|
} |
923 |
|
} |
924 |
|
|
925 |
|
/** |
926 |
+ |
* Waits up to LONG_DELAY_MS for the given thread to enter a wait |
927 |
+ |
* state: BLOCKED, WAITING, or TIMED_WAITING. |
928 |
+ |
*/ |
929 |
+ |
void waitForThreadToEnterWaitState(Thread thread) { |
930 |
+ |
waitForThreadToEnterWaitState(thread, LONG_DELAY_MS); |
931 |
+ |
} |
932 |
+ |
|
933 |
+ |
/** |
934 |
|
* Returns the number of milliseconds since time given by |
935 |
|
* startNanoTime, which must have been previously returned from a |
936 |
< |
* call to {@link System.nanoTime()}. |
936 |
> |
* call to {@link System#nanoTime()}. |
937 |
|
*/ |
938 |
< |
long millisElapsedSince(long startNanoTime) { |
938 |
> |
static long millisElapsedSince(long startNanoTime) { |
939 |
|
return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime); |
940 |
|
} |
941 |
|
|
942 |
+ |
// void assertTerminatesPromptly(long timeoutMillis, Runnable r) { |
943 |
+ |
// long startTime = System.nanoTime(); |
944 |
+ |
// try { |
945 |
+ |
// r.run(); |
946 |
+ |
// } catch (Throwable fail) { threadUnexpectedException(fail); } |
947 |
+ |
// if (millisElapsedSince(startTime) > timeoutMillis/2) |
948 |
+ |
// throw new AssertionFailedError("did not return promptly"); |
949 |
+ |
// } |
950 |
+ |
|
951 |
+ |
// void assertTerminatesPromptly(Runnable r) { |
952 |
+ |
// assertTerminatesPromptly(LONG_DELAY_MS/2, r); |
953 |
+ |
// } |
954 |
+ |
|
955 |
+ |
/** |
956 |
+ |
* Checks that timed f.get() returns the expected value, and does not |
957 |
+ |
* wait for the timeout to elapse before returning. |
958 |
+ |
*/ |
959 |
+ |
<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) { |
960 |
+ |
long startTime = System.nanoTime(); |
961 |
+ |
try { |
962 |
+ |
assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS)); |
963 |
+ |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
964 |
+ |
if (millisElapsedSince(startTime) > timeoutMillis/2) |
965 |
+ |
throw new AssertionFailedError("timed get did not return promptly"); |
966 |
+ |
} |
967 |
+ |
|
968 |
+ |
<T> void checkTimedGet(Future<T> f, T expectedValue) { |
969 |
+ |
checkTimedGet(f, expectedValue, LONG_DELAY_MS); |
970 |
+ |
} |
971 |
+ |
|
972 |
|
/** |
973 |
|
* Returns a new started daemon Thread running the given runnable. |
974 |
|
*/ |
987 |
|
void awaitTermination(Thread t, long timeoutMillis) { |
988 |
|
try { |
989 |
|
t.join(timeoutMillis); |
990 |
< |
} catch (InterruptedException ie) { |
991 |
< |
threadUnexpectedException(ie); |
990 |
> |
} catch (InterruptedException fail) { |
991 |
> |
threadUnexpectedException(fail); |
992 |
|
} finally { |
993 |
< |
if (t.isAlive()) { |
993 |
> |
if (t.getState() != Thread.State.TERMINATED) { |
994 |
|
t.interrupt(); |
995 |
|
fail("Test timed out"); |
996 |
|
} |
997 |
|
} |
998 |
|
} |
999 |
|
|
1000 |
+ |
/** |
1001 |
+ |
* Waits for LONG_DELAY_MS milliseconds for the thread to |
1002 |
+ |
* terminate (using {@link Thread#join(long)}), else interrupts |
1003 |
+ |
* the thread (in the hope that it may terminate later) and fails. |
1004 |
+ |
*/ |
1005 |
+ |
void awaitTermination(Thread t) { |
1006 |
+ |
awaitTermination(t, LONG_DELAY_MS); |
1007 |
+ |
} |
1008 |
+ |
|
1009 |
|
// Some convenient Runnable classes |
1010 |
|
|
1011 |
|
public abstract class CheckedRunnable implements Runnable { |
1014 |
|
public final void run() { |
1015 |
|
try { |
1016 |
|
realRun(); |
1017 |
< |
} catch (Throwable t) { |
1018 |
< |
threadUnexpectedException(t); |
1017 |
> |
} catch (Throwable fail) { |
1018 |
> |
threadUnexpectedException(fail); |
1019 |
|
} |
1020 |
|
} |
1021 |
|
} |
1068 |
|
realRun(); |
1069 |
|
threadShouldThrow("InterruptedException"); |
1070 |
|
} catch (InterruptedException success) { |
1071 |
< |
} catch (Throwable t) { |
1072 |
< |
threadUnexpectedException(t); |
1071 |
> |
threadAssertFalse(Thread.interrupted()); |
1072 |
> |
} catch (Throwable fail) { |
1073 |
> |
threadUnexpectedException(fail); |
1074 |
|
} |
1075 |
|
} |
1076 |
|
} |
1081 |
|
public final T call() { |
1082 |
|
try { |
1083 |
|
return realCall(); |
1084 |
< |
} catch (Throwable t) { |
1085 |
< |
threadUnexpectedException(t); |
1084 |
> |
} catch (Throwable fail) { |
1085 |
> |
threadUnexpectedException(fail); |
1086 |
|
return null; |
1087 |
|
} |
1088 |
|
} |
1098 |
|
threadShouldThrow("InterruptedException"); |
1099 |
|
return result; |
1100 |
|
} catch (InterruptedException success) { |
1101 |
< |
} catch (Throwable t) { |
1102 |
< |
threadUnexpectedException(t); |
1101 |
> |
threadAssertFalse(Thread.interrupted()); |
1102 |
> |
} catch (Throwable fail) { |
1103 |
> |
threadUnexpectedException(fail); |
1104 |
|
} |
1105 |
|
return null; |
1106 |
|
} |
1130 |
|
}}; |
1131 |
|
} |
1132 |
|
|
1133 |
+ |
public Runnable awaiter(final CountDownLatch latch) { |
1134 |
+ |
return new CheckedRunnable() { |
1135 |
+ |
public void realRun() throws InterruptedException { |
1136 |
+ |
await(latch); |
1137 |
+ |
}}; |
1138 |
+ |
} |
1139 |
+ |
|
1140 |
+ |
public void await(CountDownLatch latch) { |
1141 |
+ |
try { |
1142 |
+ |
assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS)); |
1143 |
+ |
} catch (Throwable fail) { |
1144 |
+ |
threadUnexpectedException(fail); |
1145 |
+ |
} |
1146 |
+ |
} |
1147 |
+ |
|
1148 |
+ |
public void await(Semaphore semaphore) { |
1149 |
+ |
try { |
1150 |
+ |
assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)); |
1151 |
+ |
} catch (Throwable fail) { |
1152 |
+ |
threadUnexpectedException(fail); |
1153 |
+ |
} |
1154 |
+ |
} |
1155 |
+ |
|
1156 |
+ |
// /** |
1157 |
+ |
// * Spin-waits up to LONG_DELAY_MS until flag becomes true. |
1158 |
+ |
// */ |
1159 |
+ |
// public void await(AtomicBoolean flag) { |
1160 |
+ |
// await(flag, LONG_DELAY_MS); |
1161 |
+ |
// } |
1162 |
+ |
|
1163 |
+ |
// /** |
1164 |
+ |
// * Spin-waits up to the specified timeout until flag becomes true. |
1165 |
+ |
// */ |
1166 |
+ |
// public void await(AtomicBoolean flag, long timeoutMillis) { |
1167 |
+ |
// long startTime = System.nanoTime(); |
1168 |
+ |
// while (!flag.get()) { |
1169 |
+ |
// if (millisElapsedSince(startTime) > timeoutMillis) |
1170 |
+ |
// throw new AssertionFailedError("timed out"); |
1171 |
+ |
// Thread.yield(); |
1172 |
+ |
// } |
1173 |
+ |
// } |
1174 |
+ |
|
1175 |
|
public static class NPETask implements Callable<String> { |
1176 |
|
public String call() { throw new NullPointerException(); } |
1177 |
|
} |
1182 |
|
|
1183 |
|
public class ShortRunnable extends CheckedRunnable { |
1184 |
|
protected void realRun() throws Throwable { |
1185 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1185 |
> |
delay(SHORT_DELAY_MS); |
1186 |
|
} |
1187 |
|
} |
1188 |
|
|
1189 |
|
public class ShortInterruptedRunnable extends CheckedInterruptedRunnable { |
1190 |
|
protected void realRun() throws InterruptedException { |
1191 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1191 |
> |
delay(SHORT_DELAY_MS); |
1192 |
|
} |
1193 |
|
} |
1194 |
|
|
1195 |
|
public class SmallRunnable extends CheckedRunnable { |
1196 |
|
protected void realRun() throws Throwable { |
1197 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1197 |
> |
delay(SMALL_DELAY_MS); |
1198 |
|
} |
1199 |
|
} |
1200 |
|
|
1201 |
|
public class SmallPossiblyInterruptedRunnable extends CheckedRunnable { |
1202 |
|
protected void realRun() { |
1203 |
|
try { |
1204 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1204 |
> |
delay(SMALL_DELAY_MS); |
1205 |
|
} catch (InterruptedException ok) {} |
1206 |
|
} |
1207 |
|
} |
1208 |
|
|
1209 |
|
public class SmallCallable extends CheckedCallable { |
1210 |
|
protected Object realCall() throws InterruptedException { |
1211 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1211 |
> |
delay(SMALL_DELAY_MS); |
1212 |
|
return Boolean.TRUE; |
1213 |
|
} |
1214 |
|
} |
1215 |
|
|
1216 |
|
public class MediumRunnable extends CheckedRunnable { |
1217 |
|
protected void realRun() throws Throwable { |
1218 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1218 |
> |
delay(MEDIUM_DELAY_MS); |
1219 |
|
} |
1220 |
|
} |
1221 |
|
|
1222 |
|
public class MediumInterruptedRunnable extends CheckedInterruptedRunnable { |
1223 |
|
protected void realRun() throws InterruptedException { |
1224 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1224 |
> |
delay(MEDIUM_DELAY_MS); |
1225 |
|
} |
1226 |
|
} |
1227 |
|
|
1229 |
|
return new CheckedRunnable() { |
1230 |
|
protected void realRun() { |
1231 |
|
try { |
1232 |
< |
Thread.sleep(timeoutMillis); |
1232 |
> |
delay(timeoutMillis); |
1233 |
|
} catch (InterruptedException ok) {} |
1234 |
|
}}; |
1235 |
|
} |
1237 |
|
public class MediumPossiblyInterruptedRunnable extends CheckedRunnable { |
1238 |
|
protected void realRun() { |
1239 |
|
try { |
1240 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1240 |
> |
delay(MEDIUM_DELAY_MS); |
1241 |
|
} catch (InterruptedException ok) {} |
1242 |
|
} |
1243 |
|
} |
1245 |
|
public class LongPossiblyInterruptedRunnable extends CheckedRunnable { |
1246 |
|
protected void realRun() { |
1247 |
|
try { |
1248 |
< |
Thread.sleep(LONG_DELAY_MS); |
1248 |
> |
delay(LONG_DELAY_MS); |
1249 |
|
} catch (InterruptedException ok) {} |
1250 |
|
} |
1251 |
|
} |
1269 |
|
public boolean isDone() { return done; } |
1270 |
|
public void run() { |
1271 |
|
try { |
1272 |
< |
Thread.sleep(timeoutMillis); |
1272 |
> |
delay(timeoutMillis); |
1273 |
|
done = true; |
1274 |
|
} catch (InterruptedException ok) {} |
1275 |
|
} |
1280 |
|
public volatile boolean done = false; |
1281 |
|
public void run() { |
1282 |
|
try { |
1283 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1283 |
> |
delay(SHORT_DELAY_MS); |
1284 |
|
done = true; |
1285 |
|
} catch (InterruptedException ok) {} |
1286 |
|
} |
1290 |
|
public volatile boolean done = false; |
1291 |
|
public void run() { |
1292 |
|
try { |
1293 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1293 |
> |
delay(SMALL_DELAY_MS); |
1294 |
|
done = true; |
1295 |
|
} catch (InterruptedException ok) {} |
1296 |
|
} |
1300 |
|
public volatile boolean done = false; |
1301 |
|
public void run() { |
1302 |
|
try { |
1303 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1303 |
> |
delay(MEDIUM_DELAY_MS); |
1304 |
|
done = true; |
1305 |
|
} catch (InterruptedException ok) {} |
1306 |
|
} |
1310 |
|
public volatile boolean done = false; |
1311 |
|
public void run() { |
1312 |
|
try { |
1313 |
< |
Thread.sleep(LONG_DELAY_MS); |
1313 |
> |
delay(LONG_DELAY_MS); |
1314 |
|
done = true; |
1315 |
|
} catch (InterruptedException ok) {} |
1316 |
|
} |
1327 |
|
public volatile boolean done = false; |
1328 |
|
public Object call() { |
1329 |
|
try { |
1330 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1330 |
> |
delay(SMALL_DELAY_MS); |
1331 |
|
done = true; |
1332 |
|
} catch (InterruptedException ok) {} |
1333 |
|
return Boolean.TRUE; |
1340 |
|
public abstract class CheckedRecursiveAction extends RecursiveAction { |
1341 |
|
protected abstract void realCompute() throws Throwable; |
1342 |
|
|
1343 |
< |
public final void compute() { |
1343 |
> |
@Override protected final void compute() { |
1344 |
|
try { |
1345 |
|
realCompute(); |
1346 |
< |
} catch (Throwable t) { |
1347 |
< |
threadUnexpectedException(t); |
1346 |
> |
} catch (Throwable fail) { |
1347 |
> |
threadUnexpectedException(fail); |
1348 |
|
} |
1349 |
|
} |
1350 |
|
} |
1355 |
|
public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> { |
1356 |
|
protected abstract T realCompute() throws Throwable; |
1357 |
|
|
1358 |
< |
public final T compute() { |
1358 |
> |
@Override protected final T compute() { |
1359 |
|
try { |
1360 |
|
return realCompute(); |
1361 |
< |
} catch (Throwable t) { |
1362 |
< |
threadUnexpectedException(t); |
1361 |
> |
} catch (Throwable fail) { |
1362 |
> |
threadUnexpectedException(fail); |
1363 |
|
return null; |
1364 |
|
} |
1365 |
|
} |
1374 |
|
} |
1375 |
|
|
1376 |
|
/** |
1377 |
< |
* A CyclicBarrier that fails with AssertionFailedErrors instead |
1378 |
< |
* of throwing checked exceptions. |
1377 |
> |
* A CyclicBarrier that uses timed await and fails with |
1378 |
> |
* AssertionFailedErrors instead of throwing checked exceptions. |
1379 |
|
*/ |
1380 |
|
public class CheckedBarrier extends CyclicBarrier { |
1381 |
|
public CheckedBarrier(int parties) { super(parties); } |
1382 |
|
|
1383 |
|
public int await() { |
1384 |
|
try { |
1385 |
< |
return super.await(); |
1386 |
< |
} catch (Exception e) { |
1385 |
> |
return super.await(2 * LONG_DELAY_MS, MILLISECONDS); |
1386 |
> |
} catch (TimeoutException timedOut) { |
1387 |
> |
throw new AssertionFailedError("timed out"); |
1388 |
> |
} catch (Exception fail) { |
1389 |
|
AssertionFailedError afe = |
1390 |
< |
new AssertionFailedError("Unexpected exception: " + e); |
1391 |
< |
afe.initCause(e); |
1390 |
> |
new AssertionFailedError("Unexpected exception: " + fail); |
1391 |
> |
afe.initCause(fail); |
1392 |
|
throw afe; |
1393 |
|
} |
1394 |
|
} |
1395 |
|
} |
1396 |
|
|
1397 |
+ |
void checkEmpty(BlockingQueue q) { |
1398 |
+ |
try { |
1399 |
+ |
assertTrue(q.isEmpty()); |
1400 |
+ |
assertEquals(0, q.size()); |
1401 |
+ |
assertNull(q.peek()); |
1402 |
+ |
assertNull(q.poll()); |
1403 |
+ |
assertNull(q.poll(0, MILLISECONDS)); |
1404 |
+ |
assertEquals(q.toString(), "[]"); |
1405 |
+ |
assertTrue(Arrays.equals(q.toArray(), new Object[0])); |
1406 |
+ |
assertFalse(q.iterator().hasNext()); |
1407 |
+ |
try { |
1408 |
+ |
q.element(); |
1409 |
+ |
shouldThrow(); |
1410 |
+ |
} catch (NoSuchElementException success) {} |
1411 |
+ |
try { |
1412 |
+ |
q.iterator().next(); |
1413 |
+ |
shouldThrow(); |
1414 |
+ |
} catch (NoSuchElementException success) {} |
1415 |
+ |
try { |
1416 |
+ |
q.remove(); |
1417 |
+ |
shouldThrow(); |
1418 |
+ |
} catch (NoSuchElementException success) {} |
1419 |
+ |
} catch (InterruptedException fail) { threadUnexpectedException(fail); } |
1420 |
+ |
} |
1421 |
+ |
|
1422 |
+ |
void assertSerialEquals(Object x, Object y) { |
1423 |
+ |
assertTrue(Arrays.equals(serialBytes(x), serialBytes(y))); |
1424 |
+ |
} |
1425 |
+ |
|
1426 |
+ |
void assertNotSerialEquals(Object x, Object y) { |
1427 |
+ |
assertFalse(Arrays.equals(serialBytes(x), serialBytes(y))); |
1428 |
+ |
} |
1429 |
+ |
|
1430 |
+ |
byte[] serialBytes(Object o) { |
1431 |
+ |
try { |
1432 |
+ |
ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
1433 |
+ |
ObjectOutputStream oos = new ObjectOutputStream(bos); |
1434 |
+ |
oos.writeObject(o); |
1435 |
+ |
oos.flush(); |
1436 |
+ |
oos.close(); |
1437 |
+ |
return bos.toByteArray(); |
1438 |
+ |
} catch (Throwable fail) { |
1439 |
+ |
threadUnexpectedException(fail); |
1440 |
+ |
return new byte[0]; |
1441 |
+ |
} |
1442 |
+ |
} |
1443 |
+ |
|
1444 |
+ |
@SuppressWarnings("unchecked") |
1445 |
+ |
<T> T serialClone(T o) { |
1446 |
+ |
try { |
1447 |
+ |
ObjectInputStream ois = new ObjectInputStream |
1448 |
+ |
(new ByteArrayInputStream(serialBytes(o))); |
1449 |
+ |
T clone = (T) ois.readObject(); |
1450 |
+ |
assertSame(o.getClass(), clone.getClass()); |
1451 |
+ |
return clone; |
1452 |
+ |
} catch (Throwable fail) { |
1453 |
+ |
threadUnexpectedException(fail); |
1454 |
+ |
return null; |
1455 |
+ |
} |
1456 |
+ |
} |
1457 |
+ |
|
1458 |
+ |
public void assertThrows(Class<? extends Throwable> expectedExceptionClass, |
1459 |
+ |
Runnable... throwingActions) { |
1460 |
+ |
for (Runnable throwingAction : throwingActions) { |
1461 |
+ |
boolean threw = false; |
1462 |
+ |
try { throwingAction.run(); } |
1463 |
+ |
catch (Throwable t) { |
1464 |
+ |
threw = true; |
1465 |
+ |
if (!expectedExceptionClass.isInstance(t)) { |
1466 |
+ |
AssertionFailedError afe = |
1467 |
+ |
new AssertionFailedError |
1468 |
+ |
("Expected " + expectedExceptionClass.getName() + |
1469 |
+ |
", got " + t.getClass().getName()); |
1470 |
+ |
afe.initCause(t); |
1471 |
+ |
threadUnexpectedException(afe); |
1472 |
+ |
} |
1473 |
+ |
} |
1474 |
+ |
if (!threw) |
1475 |
+ |
shouldThrow(expectedExceptionClass.getName()); |
1476 |
+ |
} |
1477 |
+ |
} |
1478 |
+ |
|
1479 |
+ |
public void assertIteratorExhausted(Iterator<?> it) { |
1480 |
+ |
try { |
1481 |
+ |
it.next(); |
1482 |
+ |
shouldThrow(); |
1483 |
+ |
} catch (NoSuchElementException success) {} |
1484 |
+ |
assertFalse(it.hasNext()); |
1485 |
+ |
} |
1486 |
|
} |