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jsr166 |
1.1 |
/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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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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jsr166 |
1.5 |
import jsr166e.*; |
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jsr166 |
1.1 |
import junit.framework.*; |
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import java.io.ByteArrayInputStream; |
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import java.io.ByteArrayOutputStream; |
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import java.io.ObjectInputStream; |
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import java.io.ObjectOutputStream; |
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import java.util.Arrays; |
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import java.util.Date; |
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import java.util.NoSuchElementException; |
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import java.util.PropertyPermission; |
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jsr166 |
1.5 |
import java.util.concurrent.BlockingQueue; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.CyclicBarrier; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.Future; |
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import java.util.concurrent.RejectedExecutionHandler; |
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import java.util.concurrent.Semaphore; |
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import java.util.concurrent.ThreadFactory; |
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import java.util.concurrent.ThreadPoolExecutor; |
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import java.util.concurrent.TimeoutException; |
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jsr166 |
1.1 |
import java.util.concurrent.atomic.AtomicReference; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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import java.security.CodeSource; |
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import java.security.Permission; |
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import java.security.PermissionCollection; |
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import java.security.Permissions; |
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import java.security.Policy; |
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import java.security.ProtectionDomain; |
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import java.security.SecurityPermission; |
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/** |
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* Base class for JSR166 Junit TCK tests. Defines some constants, |
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* utility methods and classes, as well as a simple framework for |
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* helping to make sure that assertions failing in generated threads |
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* cause the associated test that generated them to itself fail (which |
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* JUnit does not otherwise arrange). The rules for creating such |
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* tests are: |
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* |
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* <ol> |
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* |
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* <li> All assertions in code running in generated threads must use |
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* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link |
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* #threadAssertEquals}, or {@link #threadAssertNull}, (not |
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* {@code fail}, {@code assertTrue}, etc.) It is OK (but not |
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* particularly recommended) for other code to use these forms too. |
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* Only the most typically used JUnit assertion methods are defined |
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* this way, but enough to live with.</li> |
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* |
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* <li> If you override {@link #setUp} or {@link #tearDown}, make sure |
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* to invoke {@code super.setUp} and {@code super.tearDown} within |
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* them. These methods are used to clear and check for thread |
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* assertion failures.</li> |
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* |
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* <li>All delays and timeouts must use one of the constants {@code |
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* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS}, |
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* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always |
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* discriminable from zero time, and always allows enough time for the |
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* small amounts of computation (creating a thread, calling a few |
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* methods, etc) needed to reach a timeout point. Similarly, a SMALL |
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* is always discriminable as larger than SHORT and smaller than |
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* MEDIUM. And so on. These constants are set to conservative values, |
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* but even so, if there is ever any doubt, they can all be increased |
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* in one spot to rerun tests on slower platforms.</li> |
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* |
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* <li> All threads generated must be joined inside each test case |
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* method (or {@code fail} to do so) before returning from the |
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* method. The {@code joinPool} method can be used to do this when |
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* using Executors.</li> |
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* |
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* </ol> |
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* |
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jsr166 |
1.4 |
* <p><b>Other notes</b> |
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jsr166 |
1.1 |
* <ul> |
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* |
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* <li> Usually, there is one testcase method per JSR166 method |
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* covering "normal" operation, and then as many exception-testing |
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* methods as there are exceptions the method can throw. Sometimes |
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* there are multiple tests per JSR166 method when the different |
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* "normal" behaviors differ significantly. And sometimes testcases |
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* cover multiple methods when they cannot be tested in |
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* isolation.</li> |
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* |
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* <li> The documentation style for testcases is to provide as javadoc |
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* a simple sentence or two describing the property that the testcase |
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* method purports to test. The javadocs do not say anything about how |
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* the property is tested. To find out, read the code.</li> |
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* |
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* <li> These tests are "conformance tests", and do not attempt to |
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* test throughput, latency, scalability or other performance factors |
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* (see the separate "jtreg" tests for a set intended to check these |
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* for the most central aspects of functionality.) So, most tests use |
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* the smallest sensible numbers of threads, collection sizes, etc |
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* needed to check basic conformance.</li> |
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* |
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* <li>The test classes currently do not declare inclusion in |
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* any particular package to simplify things for people integrating |
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* them in TCK test suites.</li> |
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* |
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* <li> As a convenience, the {@code main} of this class (JSR166TestCase) |
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* runs all JSR166 unit tests.</li> |
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* |
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* </ul> |
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*/ |
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public class JSR166TestCase extends TestCase { |
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private static final boolean useSecurityManager = |
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Boolean.getBoolean("jsr166.useSecurityManager"); |
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protected static final boolean expensiveTests = |
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Boolean.getBoolean("jsr166.expensiveTests"); |
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/** |
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* If true, report on stdout all "slow" tests, that is, ones that |
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* take more than profileThreshold milliseconds to execute. |
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*/ |
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private static final boolean profileTests = |
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Boolean.getBoolean("jsr166.profileTests"); |
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/** |
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* The number of milliseconds that tests are permitted for |
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* execution without being reported, when profileTests is set. |
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*/ |
132 |
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private static final long profileThreshold = |
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Long.getLong("jsr166.profileThreshold", 100); |
134 |
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135 |
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protected void runTest() throws Throwable { |
136 |
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if (profileTests) |
137 |
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runTestProfiled(); |
138 |
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else |
139 |
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super.runTest(); |
140 |
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} |
141 |
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142 |
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protected void runTestProfiled() throws Throwable { |
143 |
jsr166 |
1.6 |
// Warmup run, notably to trigger all needed classloading. |
144 |
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super.runTest(); |
145 |
jsr166 |
1.1 |
long t0 = System.nanoTime(); |
146 |
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try { |
147 |
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super.runTest(); |
148 |
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} finally { |
149 |
jsr166 |
1.6 |
long elapsedMillis = millisElapsedSince(t0); |
150 |
jsr166 |
1.1 |
if (elapsedMillis >= profileThreshold) |
151 |
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System.out.printf("%n%s: %d%n", toString(), elapsedMillis); |
152 |
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} |
153 |
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} |
154 |
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155 |
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/** |
156 |
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* Runs all JSR166 unit tests using junit.textui.TestRunner |
157 |
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*/ |
158 |
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public static void main(String[] args) { |
159 |
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if (useSecurityManager) { |
160 |
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System.err.println("Setting a permissive security manager"); |
161 |
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Policy.setPolicy(permissivePolicy()); |
162 |
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System.setSecurityManager(new SecurityManager()); |
163 |
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} |
164 |
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int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]); |
165 |
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166 |
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Test s = suite(); |
167 |
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for (int i = 0; i < iters; ++i) { |
168 |
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junit.textui.TestRunner.run(s); |
169 |
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System.gc(); |
170 |
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System.runFinalization(); |
171 |
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} |
172 |
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System.exit(0); |
173 |
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} |
174 |
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175 |
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public static TestSuite newTestSuite(Object... suiteOrClasses) { |
176 |
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TestSuite suite = new TestSuite(); |
177 |
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for (Object suiteOrClass : suiteOrClasses) { |
178 |
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if (suiteOrClass instanceof TestSuite) |
179 |
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suite.addTest((TestSuite) suiteOrClass); |
180 |
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else if (suiteOrClass instanceof Class) |
181 |
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suite.addTest(new TestSuite((Class<?>) suiteOrClass)); |
182 |
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else |
183 |
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throw new ClassCastException("not a test suite or class"); |
184 |
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} |
185 |
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return suite; |
186 |
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} |
187 |
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188 |
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/** |
189 |
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* Collects all JSR166 unit tests as one suite. |
190 |
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*/ |
191 |
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public static Test suite() { |
192 |
jsr166 |
1.2 |
return newTestSuite(AtomicDoubleTest.suite(), |
193 |
jsr166 |
1.5 |
AtomicDoubleArrayTest.suite(), |
194 |
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CompletableFutureTest.suite(), |
195 |
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ConcurrentHashMapV8Test.suite(), |
196 |
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CountedCompleterTest.suite(), |
197 |
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DoubleAdderTest.suite(), |
198 |
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ForkJoinPoolTest.suite(), |
199 |
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ForkJoinTaskTest.suite(), |
200 |
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LongAdderTest.suite(), |
201 |
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RecursiveTaskTest.suite(), |
202 |
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RecursiveActionTest.suite(), |
203 |
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StampedLockTest.suite(), |
204 |
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ThreadLocalRandomTest.suite()); |
205 |
jsr166 |
1.1 |
} |
206 |
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207 |
jsr166 |
1.5 |
// Delays for timing-dependent tests, in milliseconds. |
208 |
jsr166 |
1.1 |
|
209 |
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public static long SHORT_DELAY_MS; |
210 |
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public static long SMALL_DELAY_MS; |
211 |
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public static long MEDIUM_DELAY_MS; |
212 |
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public static long LONG_DELAY_MS; |
213 |
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|
214 |
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/** |
215 |
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* Returns the shortest timed delay. This could |
216 |
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* be reimplemented to use for example a Property. |
217 |
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*/ |
218 |
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protected long getShortDelay() { |
219 |
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return 50; |
220 |
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} |
221 |
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222 |
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/** |
223 |
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* Sets delays as multiples of SHORT_DELAY. |
224 |
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*/ |
225 |
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protected void setDelays() { |
226 |
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SHORT_DELAY_MS = getShortDelay(); |
227 |
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SMALL_DELAY_MS = SHORT_DELAY_MS * 5; |
228 |
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MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10; |
229 |
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LONG_DELAY_MS = SHORT_DELAY_MS * 200; |
230 |
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} |
231 |
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232 |
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/** |
233 |
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* Returns a timeout in milliseconds to be used in tests that |
234 |
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* verify that operations block or time out. |
235 |
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*/ |
236 |
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long timeoutMillis() { |
237 |
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return SHORT_DELAY_MS / 4; |
238 |
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} |
239 |
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|
240 |
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/** |
241 |
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* Returns a new Date instance representing a time delayMillis |
242 |
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* milliseconds in the future. |
243 |
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*/ |
244 |
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Date delayedDate(long delayMillis) { |
245 |
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return new Date(System.currentTimeMillis() + delayMillis); |
246 |
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} |
247 |
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248 |
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/** |
249 |
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* The first exception encountered if any threadAssertXXX method fails. |
250 |
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*/ |
251 |
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private final AtomicReference<Throwable> threadFailure |
252 |
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= new AtomicReference<Throwable>(null); |
253 |
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|
254 |
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/** |
255 |
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* Records an exception so that it can be rethrown later in the test |
256 |
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* harness thread, triggering a test case failure. Only the first |
257 |
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* failure is recorded; subsequent calls to this method from within |
258 |
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* the same test have no effect. |
259 |
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*/ |
260 |
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public void threadRecordFailure(Throwable t) { |
261 |
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threadFailure.compareAndSet(null, t); |
262 |
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} |
263 |
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|
264 |
|
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public void setUp() { |
265 |
|
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setDelays(); |
266 |
|
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} |
267 |
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|
268 |
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/** |
269 |
|
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* Extra checks that get done for all test cases. |
270 |
|
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* |
271 |
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* Triggers test case failure if any thread assertions have failed, |
272 |
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* by rethrowing, in the test harness thread, any exception recorded |
273 |
|
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* earlier by threadRecordFailure. |
274 |
|
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* |
275 |
|
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* Triggers test case failure if interrupt status is set in the main thread. |
276 |
|
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*/ |
277 |
|
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public void tearDown() throws Exception { |
278 |
|
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Throwable t = threadFailure.getAndSet(null); |
279 |
|
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if (t != null) { |
280 |
|
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if (t instanceof Error) |
281 |
|
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throw (Error) t; |
282 |
|
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else if (t instanceof RuntimeException) |
283 |
|
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throw (RuntimeException) t; |
284 |
|
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else if (t instanceof Exception) |
285 |
|
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throw (Exception) t; |
286 |
|
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else { |
287 |
|
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AssertionFailedError afe = |
288 |
|
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new AssertionFailedError(t.toString()); |
289 |
|
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afe.initCause(t); |
290 |
|
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throw afe; |
291 |
|
|
} |
292 |
|
|
} |
293 |
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|
294 |
|
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if (Thread.interrupted()) |
295 |
|
|
throw new AssertionFailedError("interrupt status set in main thread"); |
296 |
|
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} |
297 |
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|
298 |
|
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/** |
299 |
|
|
* Just like fail(reason), but additionally recording (using |
300 |
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* threadRecordFailure) any AssertionFailedError thrown, so that |
301 |
|
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* the current testcase will fail. |
302 |
|
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*/ |
303 |
|
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public void threadFail(String reason) { |
304 |
|
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try { |
305 |
|
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fail(reason); |
306 |
|
|
} catch (AssertionFailedError t) { |
307 |
|
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threadRecordFailure(t); |
308 |
|
|
fail(reason); |
309 |
|
|
} |
310 |
|
|
} |
311 |
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|
312 |
|
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/** |
313 |
|
|
* Just like assertTrue(b), but additionally recording (using |
314 |
|
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* threadRecordFailure) any AssertionFailedError thrown, so that |
315 |
|
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* the current testcase will fail. |
316 |
|
|
*/ |
317 |
|
|
public void threadAssertTrue(boolean b) { |
318 |
|
|
try { |
319 |
|
|
assertTrue(b); |
320 |
|
|
} catch (AssertionFailedError t) { |
321 |
|
|
threadRecordFailure(t); |
322 |
|
|
throw t; |
323 |
|
|
} |
324 |
|
|
} |
325 |
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|
|
326 |
|
|
/** |
327 |
|
|
* Just like assertFalse(b), but additionally recording (using |
328 |
|
|
* threadRecordFailure) any AssertionFailedError thrown, so that |
329 |
|
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* the current testcase will fail. |
330 |
|
|
*/ |
331 |
|
|
public void threadAssertFalse(boolean b) { |
332 |
|
|
try { |
333 |
|
|
assertFalse(b); |
334 |
|
|
} catch (AssertionFailedError t) { |
335 |
|
|
threadRecordFailure(t); |
336 |
|
|
throw t; |
337 |
|
|
} |
338 |
|
|
} |
339 |
|
|
|
340 |
|
|
/** |
341 |
|
|
* Just like assertNull(x), but additionally recording (using |
342 |
|
|
* threadRecordFailure) any AssertionFailedError thrown, so that |
343 |
|
|
* the current testcase will fail. |
344 |
|
|
*/ |
345 |
|
|
public void threadAssertNull(Object x) { |
346 |
|
|
try { |
347 |
|
|
assertNull(x); |
348 |
|
|
} catch (AssertionFailedError t) { |
349 |
|
|
threadRecordFailure(t); |
350 |
|
|
throw t; |
351 |
|
|
} |
352 |
|
|
} |
353 |
|
|
|
354 |
|
|
/** |
355 |
|
|
* Just like assertEquals(x, y), but additionally recording (using |
356 |
|
|
* threadRecordFailure) any AssertionFailedError thrown, so that |
357 |
|
|
* the current testcase will fail. |
358 |
|
|
*/ |
359 |
|
|
public void threadAssertEquals(long x, long y) { |
360 |
|
|
try { |
361 |
|
|
assertEquals(x, y); |
362 |
|
|
} catch (AssertionFailedError t) { |
363 |
|
|
threadRecordFailure(t); |
364 |
|
|
throw t; |
365 |
|
|
} |
366 |
|
|
} |
367 |
|
|
|
368 |
|
|
/** |
369 |
|
|
* Just like assertEquals(x, y), but additionally recording (using |
370 |
|
|
* threadRecordFailure) any AssertionFailedError thrown, so that |
371 |
|
|
* the current testcase will fail. |
372 |
|
|
*/ |
373 |
|
|
public void threadAssertEquals(Object x, Object y) { |
374 |
|
|
try { |
375 |
|
|
assertEquals(x, y); |
376 |
|
|
} catch (AssertionFailedError t) { |
377 |
|
|
threadRecordFailure(t); |
378 |
|
|
throw t; |
379 |
|
|
} catch (Throwable t) { |
380 |
|
|
threadUnexpectedException(t); |
381 |
|
|
} |
382 |
|
|
} |
383 |
|
|
|
384 |
|
|
/** |
385 |
|
|
* Just like assertSame(x, y), but additionally recording (using |
386 |
|
|
* threadRecordFailure) any AssertionFailedError thrown, so that |
387 |
|
|
* the current testcase will fail. |
388 |
|
|
*/ |
389 |
|
|
public void threadAssertSame(Object x, Object y) { |
390 |
|
|
try { |
391 |
|
|
assertSame(x, y); |
392 |
|
|
} catch (AssertionFailedError t) { |
393 |
|
|
threadRecordFailure(t); |
394 |
|
|
throw t; |
395 |
|
|
} |
396 |
|
|
} |
397 |
|
|
|
398 |
|
|
/** |
399 |
|
|
* Calls threadFail with message "should throw exception". |
400 |
|
|
*/ |
401 |
|
|
public void threadShouldThrow() { |
402 |
|
|
threadFail("should throw exception"); |
403 |
|
|
} |
404 |
|
|
|
405 |
|
|
/** |
406 |
|
|
* Calls threadFail with message "should throw" + exceptionName. |
407 |
|
|
*/ |
408 |
|
|
public void threadShouldThrow(String exceptionName) { |
409 |
|
|
threadFail("should throw " + exceptionName); |
410 |
|
|
} |
411 |
|
|
|
412 |
|
|
/** |
413 |
|
|
* Records the given exception using {@link #threadRecordFailure}, |
414 |
|
|
* then rethrows the exception, wrapping it in an |
415 |
|
|
* AssertionFailedError if necessary. |
416 |
|
|
*/ |
417 |
|
|
public void threadUnexpectedException(Throwable t) { |
418 |
|
|
threadRecordFailure(t); |
419 |
|
|
t.printStackTrace(); |
420 |
|
|
if (t instanceof RuntimeException) |
421 |
|
|
throw (RuntimeException) t; |
422 |
|
|
else if (t instanceof Error) |
423 |
|
|
throw (Error) t; |
424 |
|
|
else { |
425 |
|
|
AssertionFailedError afe = |
426 |
|
|
new AssertionFailedError("unexpected exception: " + t); |
427 |
|
|
afe.initCause(t); |
428 |
|
|
throw afe; |
429 |
|
|
} |
430 |
|
|
} |
431 |
|
|
|
432 |
|
|
/** |
433 |
|
|
* Delays, via Thread.sleep, for the given millisecond delay, but |
434 |
|
|
* if the sleep is shorter than specified, may re-sleep or yield |
435 |
|
|
* until time elapses. |
436 |
|
|
*/ |
437 |
|
|
static void delay(long millis) throws InterruptedException { |
438 |
|
|
long startTime = System.nanoTime(); |
439 |
|
|
long ns = millis * 1000 * 1000; |
440 |
|
|
for (;;) { |
441 |
|
|
if (millis > 0L) |
442 |
|
|
Thread.sleep(millis); |
443 |
|
|
else // too short to sleep |
444 |
|
|
Thread.yield(); |
445 |
|
|
long d = ns - (System.nanoTime() - startTime); |
446 |
|
|
if (d > 0L) |
447 |
|
|
millis = d / (1000 * 1000); |
448 |
|
|
else |
449 |
|
|
break; |
450 |
|
|
} |
451 |
|
|
} |
452 |
|
|
|
453 |
|
|
/** |
454 |
|
|
* Waits out termination of a thread pool or fails doing so. |
455 |
|
|
*/ |
456 |
|
|
void joinPool(ExecutorService exec) { |
457 |
|
|
try { |
458 |
|
|
exec.shutdown(); |
459 |
|
|
assertTrue("ExecutorService did not terminate in a timely manner", |
460 |
|
|
exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)); |
461 |
|
|
} catch (SecurityException ok) { |
462 |
|
|
// Allowed in case test doesn't have privs |
463 |
|
|
} catch (InterruptedException ie) { |
464 |
|
|
fail("Unexpected InterruptedException"); |
465 |
|
|
} |
466 |
|
|
} |
467 |
|
|
|
468 |
|
|
/** |
469 |
|
|
* Checks that thread does not terminate within the default |
470 |
|
|
* millisecond delay of {@code timeoutMillis()}. |
471 |
|
|
*/ |
472 |
|
|
void assertThreadStaysAlive(Thread thread) { |
473 |
|
|
assertThreadStaysAlive(thread, timeoutMillis()); |
474 |
|
|
} |
475 |
|
|
|
476 |
|
|
/** |
477 |
|
|
* Checks that thread does not terminate within the given millisecond delay. |
478 |
|
|
*/ |
479 |
|
|
void assertThreadStaysAlive(Thread thread, long millis) { |
480 |
|
|
try { |
481 |
|
|
// No need to optimize the failing case via Thread.join. |
482 |
|
|
delay(millis); |
483 |
|
|
assertTrue(thread.isAlive()); |
484 |
|
|
} catch (InterruptedException ie) { |
485 |
|
|
fail("Unexpected InterruptedException"); |
486 |
|
|
} |
487 |
|
|
} |
488 |
|
|
|
489 |
|
|
/** |
490 |
|
|
* Checks that the threads do not terminate within the default |
491 |
|
|
* millisecond delay of {@code timeoutMillis()}. |
492 |
|
|
*/ |
493 |
|
|
void assertThreadsStayAlive(Thread... threads) { |
494 |
|
|
assertThreadsStayAlive(timeoutMillis(), threads); |
495 |
|
|
} |
496 |
|
|
|
497 |
|
|
/** |
498 |
|
|
* Checks that the threads do not terminate within the given millisecond delay. |
499 |
|
|
*/ |
500 |
|
|
void assertThreadsStayAlive(long millis, Thread... threads) { |
501 |
|
|
try { |
502 |
|
|
// No need to optimize the failing case via Thread.join. |
503 |
|
|
delay(millis); |
504 |
|
|
for (Thread thread : threads) |
505 |
|
|
assertTrue(thread.isAlive()); |
506 |
|
|
} catch (InterruptedException ie) { |
507 |
|
|
fail("Unexpected InterruptedException"); |
508 |
|
|
} |
509 |
|
|
} |
510 |
|
|
|
511 |
|
|
/** |
512 |
|
|
* Checks that future.get times out, with the default timeout of |
513 |
|
|
* {@code timeoutMillis()}. |
514 |
|
|
*/ |
515 |
|
|
void assertFutureTimesOut(Future future) { |
516 |
|
|
assertFutureTimesOut(future, timeoutMillis()); |
517 |
|
|
} |
518 |
|
|
|
519 |
|
|
/** |
520 |
|
|
* Checks that future.get times out, with the given millisecond timeout. |
521 |
|
|
*/ |
522 |
|
|
void assertFutureTimesOut(Future future, long timeoutMillis) { |
523 |
|
|
long startTime = System.nanoTime(); |
524 |
|
|
try { |
525 |
|
|
future.get(timeoutMillis, MILLISECONDS); |
526 |
|
|
shouldThrow(); |
527 |
|
|
} catch (TimeoutException success) { |
528 |
|
|
} catch (Exception e) { |
529 |
|
|
threadUnexpectedException(e); |
530 |
|
|
} finally { future.cancel(true); } |
531 |
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
532 |
|
|
} |
533 |
|
|
|
534 |
|
|
/** |
535 |
|
|
* Fails with message "should throw exception". |
536 |
|
|
*/ |
537 |
|
|
public void shouldThrow() { |
538 |
|
|
fail("Should throw exception"); |
539 |
|
|
} |
540 |
|
|
|
541 |
|
|
/** |
542 |
|
|
* Fails with message "should throw " + exceptionName. |
543 |
|
|
*/ |
544 |
|
|
public void shouldThrow(String exceptionName) { |
545 |
|
|
fail("Should throw " + exceptionName); |
546 |
|
|
} |
547 |
|
|
|
548 |
|
|
/** |
549 |
|
|
* The number of elements to place in collections, arrays, etc. |
550 |
|
|
*/ |
551 |
|
|
public static final int SIZE = 20; |
552 |
|
|
|
553 |
|
|
// Some convenient Integer constants |
554 |
|
|
|
555 |
|
|
public static final Integer zero = new Integer(0); |
556 |
|
|
public static final Integer one = new Integer(1); |
557 |
|
|
public static final Integer two = new Integer(2); |
558 |
|
|
public static final Integer three = new Integer(3); |
559 |
|
|
public static final Integer four = new Integer(4); |
560 |
|
|
public static final Integer five = new Integer(5); |
561 |
|
|
public static final Integer six = new Integer(6); |
562 |
|
|
public static final Integer seven = new Integer(7); |
563 |
|
|
public static final Integer eight = new Integer(8); |
564 |
|
|
public static final Integer nine = new Integer(9); |
565 |
|
|
public static final Integer m1 = new Integer(-1); |
566 |
|
|
public static final Integer m2 = new Integer(-2); |
567 |
|
|
public static final Integer m3 = new Integer(-3); |
568 |
|
|
public static final Integer m4 = new Integer(-4); |
569 |
|
|
public static final Integer m5 = new Integer(-5); |
570 |
|
|
public static final Integer m6 = new Integer(-6); |
571 |
|
|
public static final Integer m10 = new Integer(-10); |
572 |
|
|
|
573 |
|
|
/** |
574 |
|
|
* Runs Runnable r with a security policy that permits precisely |
575 |
|
|
* the specified permissions. If there is no current security |
576 |
|
|
* manager, the runnable is run twice, both with and without a |
577 |
|
|
* security manager. We require that any security manager permit |
578 |
|
|
* getPolicy/setPolicy. |
579 |
|
|
*/ |
580 |
|
|
public void runWithPermissions(Runnable r, Permission... permissions) { |
581 |
|
|
SecurityManager sm = System.getSecurityManager(); |
582 |
|
|
if (sm == null) { |
583 |
|
|
r.run(); |
584 |
|
|
Policy savedPolicy = Policy.getPolicy(); |
585 |
|
|
try { |
586 |
|
|
Policy.setPolicy(permissivePolicy()); |
587 |
|
|
System.setSecurityManager(new SecurityManager()); |
588 |
|
|
runWithPermissions(r, permissions); |
589 |
|
|
} finally { |
590 |
|
|
System.setSecurityManager(null); |
591 |
|
|
Policy.setPolicy(savedPolicy); |
592 |
|
|
} |
593 |
|
|
} else { |
594 |
|
|
Policy savedPolicy = Policy.getPolicy(); |
595 |
|
|
AdjustablePolicy policy = new AdjustablePolicy(permissions); |
596 |
|
|
Policy.setPolicy(policy); |
597 |
|
|
|
598 |
|
|
try { |
599 |
|
|
r.run(); |
600 |
|
|
} finally { |
601 |
|
|
policy.addPermission(new SecurityPermission("setPolicy")); |
602 |
|
|
Policy.setPolicy(savedPolicy); |
603 |
|
|
} |
604 |
|
|
} |
605 |
|
|
} |
606 |
|
|
|
607 |
|
|
/** |
608 |
|
|
* Runs a runnable without any permissions. |
609 |
|
|
*/ |
610 |
|
|
public void runWithoutPermissions(Runnable r) { |
611 |
|
|
runWithPermissions(r); |
612 |
|
|
} |
613 |
|
|
|
614 |
|
|
/** |
615 |
|
|
* A security policy where new permissions can be dynamically added |
616 |
|
|
* or all cleared. |
617 |
|
|
*/ |
618 |
|
|
public static class AdjustablePolicy extends java.security.Policy { |
619 |
|
|
Permissions perms = new Permissions(); |
620 |
|
|
AdjustablePolicy(Permission... permissions) { |
621 |
|
|
for (Permission permission : permissions) |
622 |
|
|
perms.add(permission); |
623 |
|
|
} |
624 |
|
|
void addPermission(Permission perm) { perms.add(perm); } |
625 |
|
|
void clearPermissions() { perms = new Permissions(); } |
626 |
|
|
public PermissionCollection getPermissions(CodeSource cs) { |
627 |
|
|
return perms; |
628 |
|
|
} |
629 |
|
|
public PermissionCollection getPermissions(ProtectionDomain pd) { |
630 |
|
|
return perms; |
631 |
|
|
} |
632 |
|
|
public boolean implies(ProtectionDomain pd, Permission p) { |
633 |
|
|
return perms.implies(p); |
634 |
|
|
} |
635 |
|
|
public void refresh() {} |
636 |
|
|
} |
637 |
|
|
|
638 |
|
|
/** |
639 |
|
|
* Returns a policy containing all the permissions we ever need. |
640 |
|
|
*/ |
641 |
|
|
public static Policy permissivePolicy() { |
642 |
|
|
return new AdjustablePolicy |
643 |
|
|
// Permissions j.u.c. needs directly |
644 |
|
|
(new RuntimePermission("modifyThread"), |
645 |
|
|
new RuntimePermission("getClassLoader"), |
646 |
|
|
new RuntimePermission("setContextClassLoader"), |
647 |
|
|
// Permissions needed to change permissions! |
648 |
|
|
new SecurityPermission("getPolicy"), |
649 |
|
|
new SecurityPermission("setPolicy"), |
650 |
|
|
new RuntimePermission("setSecurityManager"), |
651 |
|
|
// Permissions needed by the junit test harness |
652 |
|
|
new RuntimePermission("accessDeclaredMembers"), |
653 |
|
|
new PropertyPermission("*", "read"), |
654 |
|
|
new java.io.FilePermission("<<ALL FILES>>", "read")); |
655 |
|
|
} |
656 |
|
|
|
657 |
|
|
/** |
658 |
|
|
* Sleeps until the given time has elapsed. |
659 |
|
|
* Throws AssertionFailedError if interrupted. |
660 |
|
|
*/ |
661 |
|
|
void sleep(long millis) { |
662 |
|
|
try { |
663 |
|
|
delay(millis); |
664 |
|
|
} catch (InterruptedException ie) { |
665 |
|
|
AssertionFailedError afe = |
666 |
|
|
new AssertionFailedError("Unexpected InterruptedException"); |
667 |
|
|
afe.initCause(ie); |
668 |
|
|
throw afe; |
669 |
|
|
} |
670 |
|
|
} |
671 |
|
|
|
672 |
|
|
/** |
673 |
|
|
* Spin-waits up to the specified number of milliseconds for the given |
674 |
|
|
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING. |
675 |
|
|
*/ |
676 |
|
|
void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) { |
677 |
|
|
long startTime = System.nanoTime(); |
678 |
|
|
for (;;) { |
679 |
|
|
Thread.State s = thread.getState(); |
680 |
|
|
if (s == Thread.State.BLOCKED || |
681 |
|
|
s == Thread.State.WAITING || |
682 |
|
|
s == Thread.State.TIMED_WAITING) |
683 |
|
|
return; |
684 |
|
|
else if (s == Thread.State.TERMINATED) |
685 |
|
|
fail("Unexpected thread termination"); |
686 |
|
|
else if (millisElapsedSince(startTime) > timeoutMillis) { |
687 |
|
|
threadAssertTrue(thread.isAlive()); |
688 |
|
|
return; |
689 |
|
|
} |
690 |
|
|
Thread.yield(); |
691 |
|
|
} |
692 |
|
|
} |
693 |
|
|
|
694 |
|
|
/** |
695 |
|
|
* Waits up to LONG_DELAY_MS for the given thread to enter a wait |
696 |
|
|
* state: BLOCKED, WAITING, or TIMED_WAITING. |
697 |
|
|
*/ |
698 |
|
|
void waitForThreadToEnterWaitState(Thread thread) { |
699 |
|
|
waitForThreadToEnterWaitState(thread, LONG_DELAY_MS); |
700 |
|
|
} |
701 |
|
|
|
702 |
|
|
/** |
703 |
|
|
* Returns the number of milliseconds since time given by |
704 |
|
|
* startNanoTime, which must have been previously returned from a |
705 |
|
|
* call to {@link System.nanoTime()}. |
706 |
|
|
*/ |
707 |
jsr166 |
1.7 |
static long millisElapsedSince(long startNanoTime) { |
708 |
jsr166 |
1.1 |
return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime); |
709 |
|
|
} |
710 |
|
|
|
711 |
|
|
/** |
712 |
|
|
* Returns a new started daemon Thread running the given runnable. |
713 |
|
|
*/ |
714 |
|
|
Thread newStartedThread(Runnable runnable) { |
715 |
|
|
Thread t = new Thread(runnable); |
716 |
|
|
t.setDaemon(true); |
717 |
|
|
t.start(); |
718 |
|
|
return t; |
719 |
|
|
} |
720 |
|
|
|
721 |
|
|
/** |
722 |
|
|
* Waits for the specified time (in milliseconds) for the thread |
723 |
|
|
* to terminate (using {@link Thread#join(long)}), else interrupts |
724 |
|
|
* the thread (in the hope that it may terminate later) and fails. |
725 |
|
|
*/ |
726 |
|
|
void awaitTermination(Thread t, long timeoutMillis) { |
727 |
|
|
try { |
728 |
|
|
t.join(timeoutMillis); |
729 |
|
|
} catch (InterruptedException ie) { |
730 |
|
|
threadUnexpectedException(ie); |
731 |
|
|
} finally { |
732 |
|
|
if (t.getState() != Thread.State.TERMINATED) { |
733 |
|
|
t.interrupt(); |
734 |
|
|
fail("Test timed out"); |
735 |
|
|
} |
736 |
|
|
} |
737 |
|
|
} |
738 |
|
|
|
739 |
|
|
/** |
740 |
|
|
* Waits for LONG_DELAY_MS milliseconds for the thread to |
741 |
|
|
* terminate (using {@link Thread#join(long)}), else interrupts |
742 |
|
|
* the thread (in the hope that it may terminate later) and fails. |
743 |
|
|
*/ |
744 |
|
|
void awaitTermination(Thread t) { |
745 |
|
|
awaitTermination(t, LONG_DELAY_MS); |
746 |
|
|
} |
747 |
|
|
|
748 |
|
|
// Some convenient Runnable classes |
749 |
|
|
|
750 |
|
|
public abstract class CheckedRunnable implements Runnable { |
751 |
|
|
protected abstract void realRun() throws Throwable; |
752 |
|
|
|
753 |
|
|
public final void run() { |
754 |
|
|
try { |
755 |
|
|
realRun(); |
756 |
|
|
} catch (Throwable t) { |
757 |
|
|
threadUnexpectedException(t); |
758 |
|
|
} |
759 |
|
|
} |
760 |
|
|
} |
761 |
|
|
|
762 |
|
|
public abstract class RunnableShouldThrow implements Runnable { |
763 |
|
|
protected abstract void realRun() throws Throwable; |
764 |
|
|
|
765 |
|
|
final Class<?> exceptionClass; |
766 |
|
|
|
767 |
|
|
<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) { |
768 |
|
|
this.exceptionClass = exceptionClass; |
769 |
|
|
} |
770 |
|
|
|
771 |
|
|
public final void run() { |
772 |
|
|
try { |
773 |
|
|
realRun(); |
774 |
|
|
threadShouldThrow(exceptionClass.getSimpleName()); |
775 |
|
|
} catch (Throwable t) { |
776 |
|
|
if (! exceptionClass.isInstance(t)) |
777 |
|
|
threadUnexpectedException(t); |
778 |
|
|
} |
779 |
|
|
} |
780 |
|
|
} |
781 |
|
|
|
782 |
|
|
public abstract class ThreadShouldThrow extends Thread { |
783 |
|
|
protected abstract void realRun() throws Throwable; |
784 |
|
|
|
785 |
|
|
final Class<?> exceptionClass; |
786 |
|
|
|
787 |
|
|
<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) { |
788 |
|
|
this.exceptionClass = exceptionClass; |
789 |
|
|
} |
790 |
|
|
|
791 |
|
|
public final void run() { |
792 |
|
|
try { |
793 |
|
|
realRun(); |
794 |
|
|
threadShouldThrow(exceptionClass.getSimpleName()); |
795 |
|
|
} catch (Throwable t) { |
796 |
|
|
if (! exceptionClass.isInstance(t)) |
797 |
|
|
threadUnexpectedException(t); |
798 |
|
|
} |
799 |
|
|
} |
800 |
|
|
} |
801 |
|
|
|
802 |
|
|
public abstract class CheckedInterruptedRunnable implements Runnable { |
803 |
|
|
protected abstract void realRun() throws Throwable; |
804 |
|
|
|
805 |
|
|
public final void run() { |
806 |
|
|
try { |
807 |
|
|
realRun(); |
808 |
|
|
threadShouldThrow("InterruptedException"); |
809 |
|
|
} catch (InterruptedException success) { |
810 |
|
|
threadAssertFalse(Thread.interrupted()); |
811 |
|
|
} catch (Throwable t) { |
812 |
|
|
threadUnexpectedException(t); |
813 |
|
|
} |
814 |
|
|
} |
815 |
|
|
} |
816 |
|
|
|
817 |
|
|
public abstract class CheckedCallable<T> implements Callable<T> { |
818 |
|
|
protected abstract T realCall() throws Throwable; |
819 |
|
|
|
820 |
|
|
public final T call() { |
821 |
|
|
try { |
822 |
|
|
return realCall(); |
823 |
|
|
} catch (Throwable t) { |
824 |
|
|
threadUnexpectedException(t); |
825 |
|
|
return null; |
826 |
|
|
} |
827 |
|
|
} |
828 |
|
|
} |
829 |
|
|
|
830 |
|
|
public abstract class CheckedInterruptedCallable<T> |
831 |
|
|
implements Callable<T> { |
832 |
|
|
protected abstract T realCall() throws Throwable; |
833 |
|
|
|
834 |
|
|
public final T call() { |
835 |
|
|
try { |
836 |
|
|
T result = realCall(); |
837 |
|
|
threadShouldThrow("InterruptedException"); |
838 |
|
|
return result; |
839 |
|
|
} catch (InterruptedException success) { |
840 |
|
|
threadAssertFalse(Thread.interrupted()); |
841 |
|
|
} catch (Throwable t) { |
842 |
|
|
threadUnexpectedException(t); |
843 |
|
|
} |
844 |
|
|
return null; |
845 |
|
|
} |
846 |
|
|
} |
847 |
|
|
|
848 |
|
|
public static class NoOpRunnable implements Runnable { |
849 |
|
|
public void run() {} |
850 |
|
|
} |
851 |
|
|
|
852 |
|
|
public static class NoOpCallable implements Callable { |
853 |
|
|
public Object call() { return Boolean.TRUE; } |
854 |
|
|
} |
855 |
|
|
|
856 |
|
|
public static final String TEST_STRING = "a test string"; |
857 |
|
|
|
858 |
|
|
public static class StringTask implements Callable<String> { |
859 |
|
|
public String call() { return TEST_STRING; } |
860 |
|
|
} |
861 |
|
|
|
862 |
|
|
public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) { |
863 |
|
|
return new CheckedCallable<String>() { |
864 |
|
|
protected String realCall() { |
865 |
|
|
try { |
866 |
|
|
latch.await(); |
867 |
|
|
} catch (InterruptedException quittingTime) {} |
868 |
|
|
return TEST_STRING; |
869 |
|
|
}}; |
870 |
|
|
} |
871 |
|
|
|
872 |
|
|
public Runnable awaiter(final CountDownLatch latch) { |
873 |
|
|
return new CheckedRunnable() { |
874 |
|
|
public void realRun() throws InterruptedException { |
875 |
|
|
await(latch); |
876 |
|
|
}}; |
877 |
|
|
} |
878 |
|
|
|
879 |
|
|
public void await(CountDownLatch latch) { |
880 |
|
|
try { |
881 |
|
|
assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS)); |
882 |
|
|
} catch (Throwable t) { |
883 |
|
|
threadUnexpectedException(t); |
884 |
|
|
} |
885 |
|
|
} |
886 |
|
|
|
887 |
|
|
public void await(Semaphore semaphore) { |
888 |
|
|
try { |
889 |
|
|
assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)); |
890 |
|
|
} catch (Throwable t) { |
891 |
|
|
threadUnexpectedException(t); |
892 |
|
|
} |
893 |
|
|
} |
894 |
|
|
|
895 |
|
|
// /** |
896 |
|
|
// * Spin-waits up to LONG_DELAY_MS until flag becomes true. |
897 |
|
|
// */ |
898 |
|
|
// public void await(AtomicBoolean flag) { |
899 |
|
|
// await(flag, LONG_DELAY_MS); |
900 |
|
|
// } |
901 |
|
|
|
902 |
|
|
// /** |
903 |
|
|
// * Spin-waits up to the specified timeout until flag becomes true. |
904 |
|
|
// */ |
905 |
|
|
// public void await(AtomicBoolean flag, long timeoutMillis) { |
906 |
|
|
// long startTime = System.nanoTime(); |
907 |
|
|
// while (!flag.get()) { |
908 |
|
|
// if (millisElapsedSince(startTime) > timeoutMillis) |
909 |
|
|
// throw new AssertionFailedError("timed out"); |
910 |
|
|
// Thread.yield(); |
911 |
|
|
// } |
912 |
|
|
// } |
913 |
|
|
|
914 |
|
|
public static class NPETask implements Callable<String> { |
915 |
|
|
public String call() { throw new NullPointerException(); } |
916 |
|
|
} |
917 |
|
|
|
918 |
|
|
public static class CallableOne implements Callable<Integer> { |
919 |
|
|
public Integer call() { return one; } |
920 |
|
|
} |
921 |
|
|
|
922 |
|
|
public class ShortRunnable extends CheckedRunnable { |
923 |
|
|
protected void realRun() throws Throwable { |
924 |
|
|
delay(SHORT_DELAY_MS); |
925 |
|
|
} |
926 |
|
|
} |
927 |
|
|
|
928 |
|
|
public class ShortInterruptedRunnable extends CheckedInterruptedRunnable { |
929 |
|
|
protected void realRun() throws InterruptedException { |
930 |
|
|
delay(SHORT_DELAY_MS); |
931 |
|
|
} |
932 |
|
|
} |
933 |
|
|
|
934 |
|
|
public class SmallRunnable extends CheckedRunnable { |
935 |
|
|
protected void realRun() throws Throwable { |
936 |
|
|
delay(SMALL_DELAY_MS); |
937 |
|
|
} |
938 |
|
|
} |
939 |
|
|
|
940 |
|
|
public class SmallPossiblyInterruptedRunnable extends CheckedRunnable { |
941 |
|
|
protected void realRun() { |
942 |
|
|
try { |
943 |
|
|
delay(SMALL_DELAY_MS); |
944 |
|
|
} catch (InterruptedException ok) {} |
945 |
|
|
} |
946 |
|
|
} |
947 |
|
|
|
948 |
|
|
public class SmallCallable extends CheckedCallable { |
949 |
|
|
protected Object realCall() throws InterruptedException { |
950 |
|
|
delay(SMALL_DELAY_MS); |
951 |
|
|
return Boolean.TRUE; |
952 |
|
|
} |
953 |
|
|
} |
954 |
|
|
|
955 |
|
|
public class MediumRunnable extends CheckedRunnable { |
956 |
|
|
protected void realRun() throws Throwable { |
957 |
|
|
delay(MEDIUM_DELAY_MS); |
958 |
|
|
} |
959 |
|
|
} |
960 |
|
|
|
961 |
|
|
public class MediumInterruptedRunnable extends CheckedInterruptedRunnable { |
962 |
|
|
protected void realRun() throws InterruptedException { |
963 |
|
|
delay(MEDIUM_DELAY_MS); |
964 |
|
|
} |
965 |
|
|
} |
966 |
|
|
|
967 |
|
|
public Runnable possiblyInterruptedRunnable(final long timeoutMillis) { |
968 |
|
|
return new CheckedRunnable() { |
969 |
|
|
protected void realRun() { |
970 |
|
|
try { |
971 |
|
|
delay(timeoutMillis); |
972 |
|
|
} catch (InterruptedException ok) {} |
973 |
|
|
}}; |
974 |
|
|
} |
975 |
|
|
|
976 |
|
|
public class MediumPossiblyInterruptedRunnable extends CheckedRunnable { |
977 |
|
|
protected void realRun() { |
978 |
|
|
try { |
979 |
|
|
delay(MEDIUM_DELAY_MS); |
980 |
|
|
} catch (InterruptedException ok) {} |
981 |
|
|
} |
982 |
|
|
} |
983 |
|
|
|
984 |
|
|
public class LongPossiblyInterruptedRunnable extends CheckedRunnable { |
985 |
|
|
protected void realRun() { |
986 |
|
|
try { |
987 |
|
|
delay(LONG_DELAY_MS); |
988 |
|
|
} catch (InterruptedException ok) {} |
989 |
|
|
} |
990 |
|
|
} |
991 |
|
|
|
992 |
|
|
/** |
993 |
|
|
* For use as ThreadFactory in constructors |
994 |
|
|
*/ |
995 |
|
|
public static class SimpleThreadFactory implements ThreadFactory { |
996 |
|
|
public Thread newThread(Runnable r) { |
997 |
|
|
return new Thread(r); |
998 |
|
|
} |
999 |
|
|
} |
1000 |
|
|
|
1001 |
|
|
public interface TrackedRunnable extends Runnable { |
1002 |
|
|
boolean isDone(); |
1003 |
|
|
} |
1004 |
|
|
|
1005 |
|
|
public static TrackedRunnable trackedRunnable(final long timeoutMillis) { |
1006 |
|
|
return new TrackedRunnable() { |
1007 |
|
|
private volatile boolean done = false; |
1008 |
|
|
public boolean isDone() { return done; } |
1009 |
|
|
public void run() { |
1010 |
|
|
try { |
1011 |
|
|
delay(timeoutMillis); |
1012 |
|
|
done = true; |
1013 |
|
|
} catch (InterruptedException ok) {} |
1014 |
|
|
} |
1015 |
|
|
}; |
1016 |
|
|
} |
1017 |
|
|
|
1018 |
|
|
public static class TrackedShortRunnable implements Runnable { |
1019 |
|
|
public volatile boolean done = false; |
1020 |
|
|
public void run() { |
1021 |
|
|
try { |
1022 |
|
|
delay(SHORT_DELAY_MS); |
1023 |
|
|
done = true; |
1024 |
|
|
} catch (InterruptedException ok) {} |
1025 |
|
|
} |
1026 |
|
|
} |
1027 |
|
|
|
1028 |
|
|
public static class TrackedSmallRunnable implements Runnable { |
1029 |
|
|
public volatile boolean done = false; |
1030 |
|
|
public void run() { |
1031 |
|
|
try { |
1032 |
|
|
delay(SMALL_DELAY_MS); |
1033 |
|
|
done = true; |
1034 |
|
|
} catch (InterruptedException ok) {} |
1035 |
|
|
} |
1036 |
|
|
} |
1037 |
|
|
|
1038 |
|
|
public static class TrackedMediumRunnable implements Runnable { |
1039 |
|
|
public volatile boolean done = false; |
1040 |
|
|
public void run() { |
1041 |
|
|
try { |
1042 |
|
|
delay(MEDIUM_DELAY_MS); |
1043 |
|
|
done = true; |
1044 |
|
|
} catch (InterruptedException ok) {} |
1045 |
|
|
} |
1046 |
|
|
} |
1047 |
|
|
|
1048 |
|
|
public static class TrackedLongRunnable implements Runnable { |
1049 |
|
|
public volatile boolean done = false; |
1050 |
|
|
public void run() { |
1051 |
|
|
try { |
1052 |
|
|
delay(LONG_DELAY_MS); |
1053 |
|
|
done = true; |
1054 |
|
|
} catch (InterruptedException ok) {} |
1055 |
|
|
} |
1056 |
|
|
} |
1057 |
|
|
|
1058 |
|
|
public static class TrackedNoOpRunnable implements Runnable { |
1059 |
|
|
public volatile boolean done = false; |
1060 |
|
|
public void run() { |
1061 |
|
|
done = true; |
1062 |
|
|
} |
1063 |
|
|
} |
1064 |
|
|
|
1065 |
|
|
public static class TrackedCallable implements Callable { |
1066 |
|
|
public volatile boolean done = false; |
1067 |
|
|
public Object call() { |
1068 |
|
|
try { |
1069 |
|
|
delay(SMALL_DELAY_MS); |
1070 |
|
|
done = true; |
1071 |
|
|
} catch (InterruptedException ok) {} |
1072 |
|
|
return Boolean.TRUE; |
1073 |
|
|
} |
1074 |
|
|
} |
1075 |
|
|
|
1076 |
|
|
/** |
1077 |
|
|
* Analog of CheckedRunnable for RecursiveAction |
1078 |
|
|
*/ |
1079 |
|
|
public abstract class CheckedRecursiveAction extends RecursiveAction { |
1080 |
|
|
protected abstract void realCompute() throws Throwable; |
1081 |
|
|
|
1082 |
|
|
public final void compute() { |
1083 |
|
|
try { |
1084 |
|
|
realCompute(); |
1085 |
|
|
} catch (Throwable t) { |
1086 |
|
|
threadUnexpectedException(t); |
1087 |
|
|
} |
1088 |
|
|
} |
1089 |
|
|
} |
1090 |
|
|
|
1091 |
|
|
/** |
1092 |
|
|
* Analog of CheckedCallable for RecursiveTask |
1093 |
|
|
*/ |
1094 |
|
|
public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> { |
1095 |
|
|
protected abstract T realCompute() throws Throwable; |
1096 |
|
|
|
1097 |
|
|
public final T compute() { |
1098 |
|
|
try { |
1099 |
|
|
return realCompute(); |
1100 |
|
|
} catch (Throwable t) { |
1101 |
|
|
threadUnexpectedException(t); |
1102 |
|
|
return null; |
1103 |
|
|
} |
1104 |
|
|
} |
1105 |
|
|
} |
1106 |
|
|
|
1107 |
|
|
/** |
1108 |
|
|
* For use as RejectedExecutionHandler in constructors |
1109 |
|
|
*/ |
1110 |
|
|
public static class NoOpREHandler implements RejectedExecutionHandler { |
1111 |
|
|
public void rejectedExecution(Runnable r, |
1112 |
|
|
ThreadPoolExecutor executor) {} |
1113 |
|
|
} |
1114 |
|
|
|
1115 |
|
|
/** |
1116 |
|
|
* A CyclicBarrier that uses timed await and fails with |
1117 |
|
|
* AssertionFailedErrors instead of throwing checked exceptions. |
1118 |
|
|
*/ |
1119 |
|
|
public class CheckedBarrier extends CyclicBarrier { |
1120 |
|
|
public CheckedBarrier(int parties) { super(parties); } |
1121 |
|
|
|
1122 |
|
|
public int await() { |
1123 |
|
|
try { |
1124 |
|
|
return super.await(2 * LONG_DELAY_MS, MILLISECONDS); |
1125 |
|
|
} catch (TimeoutException e) { |
1126 |
|
|
throw new AssertionFailedError("timed out"); |
1127 |
|
|
} catch (Exception e) { |
1128 |
|
|
AssertionFailedError afe = |
1129 |
|
|
new AssertionFailedError("Unexpected exception: " + e); |
1130 |
|
|
afe.initCause(e); |
1131 |
|
|
throw afe; |
1132 |
|
|
} |
1133 |
|
|
} |
1134 |
|
|
} |
1135 |
|
|
|
1136 |
|
|
void checkEmpty(BlockingQueue q) { |
1137 |
|
|
try { |
1138 |
|
|
assertTrue(q.isEmpty()); |
1139 |
|
|
assertEquals(0, q.size()); |
1140 |
|
|
assertNull(q.peek()); |
1141 |
|
|
assertNull(q.poll()); |
1142 |
|
|
assertNull(q.poll(0, MILLISECONDS)); |
1143 |
jsr166 |
1.3 |
assertEquals("[]", q.toString()); |
1144 |
jsr166 |
1.1 |
assertTrue(Arrays.equals(q.toArray(), new Object[0])); |
1145 |
|
|
assertFalse(q.iterator().hasNext()); |
1146 |
|
|
try { |
1147 |
|
|
q.element(); |
1148 |
|
|
shouldThrow(); |
1149 |
|
|
} catch (NoSuchElementException success) {} |
1150 |
|
|
try { |
1151 |
|
|
q.iterator().next(); |
1152 |
|
|
shouldThrow(); |
1153 |
|
|
} catch (NoSuchElementException success) {} |
1154 |
|
|
try { |
1155 |
|
|
q.remove(); |
1156 |
|
|
shouldThrow(); |
1157 |
|
|
} catch (NoSuchElementException success) {} |
1158 |
|
|
} catch (InterruptedException ie) { |
1159 |
|
|
threadUnexpectedException(ie); |
1160 |
|
|
} |
1161 |
|
|
} |
1162 |
|
|
|
1163 |
|
|
@SuppressWarnings("unchecked") |
1164 |
|
|
<T> T serialClone(T o) { |
1165 |
|
|
try { |
1166 |
|
|
ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
1167 |
|
|
ObjectOutputStream oos = new ObjectOutputStream(bos); |
1168 |
|
|
oos.writeObject(o); |
1169 |
|
|
oos.flush(); |
1170 |
|
|
oos.close(); |
1171 |
|
|
ObjectInputStream ois = new ObjectInputStream |
1172 |
|
|
(new ByteArrayInputStream(bos.toByteArray())); |
1173 |
|
|
T clone = (T) ois.readObject(); |
1174 |
|
|
assertSame(o.getClass(), clone.getClass()); |
1175 |
|
|
return clone; |
1176 |
|
|
} catch (Throwable t) { |
1177 |
|
|
threadUnexpectedException(t); |
1178 |
|
|
return null; |
1179 |
|
|
} |
1180 |
|
|
} |
1181 |
|
|
} |