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dl |
1.1 |
/* |
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* Written by members of JCP JSR-166 Expert Group and released to the |
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* public domain. Use, modify, and redistribute this code in any way |
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* without acknowledgement. Other contributors include Andrew Wright, |
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* Jeffrey Hayes, Pat Fischer, Mike Judd. |
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*/ |
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import junit.framework.*; |
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import java.util.concurrent.*; |
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dl |
1.4 |
import java.util.*; |
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dl |
1.1 |
|
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dl |
1.4 |
public class FutureTaskTest extends JSR166TestCase { |
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dl |
1.1 |
|
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(FutureTaskTest.class); |
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} |
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dl |
1.4 |
/** |
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* Subclass to expose protected methods |
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*/ |
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static class MyFutureTask extends FutureTask { |
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public MyFutureTask(Callable r) { super(r); } |
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public boolean reset() { return super.reset(); } |
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public void setCancelled() { super.setCancelled(); } |
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public void setDone() { super.setDone(); } |
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public void set(Object x) { super.set(x); } |
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public void setException(Throwable t) { super.setException(t); } |
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} |
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dl |
1.1 |
|
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dl |
1.3 |
public void testConstructor(){ |
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try { |
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FutureTask task = new FutureTask(null); |
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fail("should throw"); |
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} |
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catch(NullPointerException success) { |
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} |
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} |
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public void testConstructor2(){ |
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try { |
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FutureTask task = new FutureTask(null, Boolean.TRUE); |
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fail("should throw"); |
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} |
47 |
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catch(NullPointerException success) { |
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} |
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} |
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dl |
1.1 |
public void testIsDone(){ |
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dl |
1.4 |
FutureTask task = new FutureTask( new NoOpCallable()); |
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task.run(); |
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assertTrue(task.isDone()); |
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assertFalse(task.isCancelled()); |
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} |
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public void testReset(){ |
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MyFutureTask task = new MyFutureTask(new NoOpCallable()); |
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task.run(); |
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assertTrue(task.isDone()); |
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assertTrue(task.reset()); |
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} |
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public void testResetAfterCancel() { |
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MyFutureTask task = new MyFutureTask(new NoOpCallable()); |
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assertTrue(task.cancel(false)); |
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dl |
1.1 |
task.run(); |
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assertTrue(task.isDone()); |
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dl |
1.4 |
assertTrue(task.isCancelled()); |
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assertFalse(task.reset()); |
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} |
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public void testSetDone() { |
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MyFutureTask task = new MyFutureTask(new NoOpCallable()); |
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task.setDone(); |
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assertTrue(task.isDone()); |
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dl |
1.1 |
assertFalse(task.isCancelled()); |
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} |
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dl |
1.4 |
public void testSetCancelled() { |
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MyFutureTask task = new MyFutureTask(new NoOpCallable()); |
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assertTrue(task.cancel(false)); |
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task.setCancelled(); |
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assertTrue(task.isDone()); |
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assertTrue(task.isCancelled()); |
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} |
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public void testSet() { |
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MyFutureTask task = new MyFutureTask(new NoOpCallable()); |
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task.set(one); |
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try { |
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assertEquals(task.get(), one); |
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} |
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catch(Exception e) { |
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fail("unexpected exception"); |
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} |
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} |
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public void testSetException() { |
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Exception nse = new NoSuchElementException(); |
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MyFutureTask task = new MyFutureTask(new NoOpCallable()); |
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task.setException(nse); |
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try { |
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Object x = task.get(); |
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fail("should throw"); |
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} |
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catch(ExecutionException ee) { |
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Throwable cause = ee.getCause(); |
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assertEquals(cause, nse); |
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} |
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catch(Exception e) { |
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fail("unexpected exception"); |
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} |
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} |
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dl |
1.1 |
public void testCancelBeforeRun() { |
118 |
dl |
1.4 |
FutureTask task = new FutureTask( new NoOpCallable()); |
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dl |
1.1 |
assertTrue(task.cancel(false)); |
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task.run(); |
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assertTrue(task.isDone()); |
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assertTrue(task.isCancelled()); |
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} |
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public void testCancelBeforeRun2() { |
126 |
dl |
1.4 |
FutureTask task = new FutureTask( new NoOpCallable()); |
127 |
dl |
1.1 |
assertTrue(task.cancel(true)); |
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task.run(); |
129 |
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assertTrue(task.isDone()); |
130 |
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assertTrue(task.isCancelled()); |
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} |
132 |
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public void testCancelAfterRun() { |
134 |
dl |
1.4 |
FutureTask task = new FutureTask( new NoOpCallable()); |
135 |
dl |
1.1 |
task.run(); |
136 |
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assertFalse(task.cancel(false)); |
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assertTrue(task.isDone()); |
138 |
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assertFalse(task.isCancelled()); |
139 |
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} |
140 |
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public void testCancelInterrupt(){ |
142 |
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FutureTask task = new FutureTask( new Callable() { |
143 |
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public Object call() { |
144 |
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try { |
145 |
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1.4 |
Thread.sleep(MEDIUM_DELAY_MS); |
146 |
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threadFail("should throw"); |
147 |
dl |
1.1 |
} |
148 |
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catch (InterruptedException success) {} |
149 |
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return Boolean.TRUE; |
150 |
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} }); |
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Thread t = new Thread(task); |
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t.start(); |
153 |
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try{ |
155 |
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Thread.sleep(SHORT_DELAY_MS); |
156 |
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assertTrue(task.cancel(true)); |
157 |
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t.join(); |
158 |
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assertTrue(task.isDone()); |
159 |
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assertTrue(task.isCancelled()); |
160 |
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} catch(InterruptedException e){ |
161 |
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fail("unexpected exception"); |
162 |
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} |
163 |
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} |
164 |
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165 |
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166 |
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public void testCancelNoInterrupt(){ |
167 |
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FutureTask task = new FutureTask( new Callable() { |
168 |
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public Object call() { |
169 |
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try { |
170 |
dl |
1.4 |
Thread.sleep(MEDIUM_DELAY_MS); |
171 |
dl |
1.1 |
} |
172 |
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catch (InterruptedException success) { |
173 |
dl |
1.4 |
threadFail("should not interrupt"); |
174 |
dl |
1.1 |
} |
175 |
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return Boolean.TRUE; |
176 |
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} }); |
177 |
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Thread t = new Thread(task); |
178 |
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t.start(); |
179 |
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180 |
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try{ |
181 |
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Thread.sleep(SHORT_DELAY_MS); |
182 |
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assertTrue(task.cancel(false)); |
183 |
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t.join(); |
184 |
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assertTrue(task.isDone()); |
185 |
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assertTrue(task.isCancelled()); |
186 |
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} catch(InterruptedException e){ |
187 |
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fail("unexpected exception"); |
188 |
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} |
189 |
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} |
190 |
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191 |
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public void testGet1() { |
192 |
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final FutureTask ft = new FutureTask(new Callable(){ |
193 |
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public Object call(){ |
194 |
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try{ |
195 |
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Thread.sleep(MEDIUM_DELAY_MS); |
196 |
dl |
1.2 |
} catch(InterruptedException e){ |
197 |
dl |
1.4 |
threadFail("unexpected exception"); |
198 |
dl |
1.1 |
} |
199 |
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return Boolean.TRUE; |
200 |
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} |
201 |
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}); |
202 |
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Thread t = new Thread(new Runnable(){ |
203 |
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public void run(){ |
204 |
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try{ |
205 |
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ft.get(); |
206 |
dl |
1.2 |
} catch(Exception e){ |
207 |
dl |
1.4 |
threadFail("unexpected exception"); |
208 |
dl |
1.1 |
} |
209 |
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} |
210 |
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}); |
211 |
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try{ |
212 |
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assertFalse(ft.isDone()); |
213 |
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assertFalse(ft.isCancelled()); |
214 |
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t.start(); |
215 |
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Thread.sleep(SHORT_DELAY_MS); |
216 |
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ft.run(); |
217 |
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t.join(); |
218 |
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assertTrue(ft.isDone()); |
219 |
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assertFalse(ft.isCancelled()); |
220 |
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} catch(InterruptedException e){ |
221 |
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fail("unexpected exception"); |
222 |
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223 |
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} |
224 |
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} |
225 |
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226 |
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public void testTimedGet1() { |
227 |
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final FutureTask ft = new FutureTask(new Callable(){ |
228 |
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public Object call(){ |
229 |
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try{ |
230 |
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Thread.sleep(MEDIUM_DELAY_MS); |
231 |
dl |
1.2 |
} catch(InterruptedException e){ |
232 |
dl |
1.4 |
threadFail("unexpected exception"); |
233 |
dl |
1.1 |
} |
234 |
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return Boolean.TRUE; |
235 |
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} |
236 |
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}); |
237 |
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Thread t = new Thread(new Runnable(){ |
238 |
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public void run(){ |
239 |
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try{ |
240 |
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ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
241 |
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} catch(TimeoutException success) { |
242 |
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} catch(Exception e){ |
243 |
dl |
1.4 |
threadFail("unexpected exception"); |
244 |
dl |
1.1 |
} |
245 |
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} |
246 |
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}); |
247 |
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try{ |
248 |
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assertFalse(ft.isDone()); |
249 |
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assertFalse(ft.isCancelled()); |
250 |
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t.start(); |
251 |
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ft.run(); |
252 |
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t.join(); |
253 |
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assertTrue(ft.isDone()); |
254 |
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assertFalse(ft.isCancelled()); |
255 |
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} catch(InterruptedException e){ |
256 |
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fail("unexpected exception"); |
257 |
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258 |
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} |
259 |
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} |
260 |
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261 |
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262 |
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public void testGet_Cancellation(){ |
263 |
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final FutureTask ft = new FutureTask(new Callable(){ |
264 |
|
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public Object call(){ |
265 |
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try{ |
266 |
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Thread.sleep(MEDIUM_DELAY_MS); |
267 |
dl |
1.2 |
} catch(InterruptedException e){ |
268 |
dl |
1.4 |
threadFail("unexpected exception"); |
269 |
dl |
1.1 |
} |
270 |
|
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return Boolean.TRUE; |
271 |
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} |
272 |
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}); |
273 |
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try { |
274 |
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Thread.sleep(SHORT_DELAY_MS); |
275 |
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Thread t = new Thread(new Runnable(){ |
276 |
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public void run(){ |
277 |
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try{ |
278 |
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ft.get(); |
279 |
dl |
1.4 |
threadFail("should throw"); |
280 |
dl |
1.2 |
} catch(CancellationException success){ |
281 |
dl |
1.1 |
} |
282 |
|
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catch(Exception e){ |
283 |
dl |
1.4 |
threadFail("unexpected exception"); |
284 |
dl |
1.1 |
} |
285 |
|
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} |
286 |
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}); |
287 |
|
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t.start(); |
288 |
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ft.cancel(true); |
289 |
|
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t.join(); |
290 |
dl |
1.2 |
} catch(InterruptedException success){ |
291 |
dl |
1.1 |
fail("unexpected exception"); |
292 |
|
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} |
293 |
|
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} |
294 |
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|
295 |
|
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public void testGet_Cancellation2(){ |
296 |
|
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final FutureTask ft = new FutureTask(new Callable(){ |
297 |
|
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public Object call(){ |
298 |
|
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try{ |
299 |
|
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Thread.sleep(SHORT_DELAY_MS); |
300 |
|
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} catch(InterruptedException e) { |
301 |
dl |
1.4 |
threadFail("unexpected exception"); |
302 |
dl |
1.1 |
} |
303 |
|
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return Boolean.TRUE; |
304 |
|
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} |
305 |
|
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}); |
306 |
|
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try{ |
307 |
dl |
1.4 |
Thread.sleep(SHORT_DELAY_MS); |
308 |
dl |
1.1 |
Thread t = new Thread(new Runnable(){ |
309 |
|
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public void run(){ |
310 |
|
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try{ |
311 |
dl |
1.4 |
ft.get(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
312 |
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threadFail("should throw"); |
313 |
dl |
1.2 |
} catch(CancellationException success) {} |
314 |
dl |
1.1 |
catch(Exception e){ |
315 |
dl |
1.4 |
threadFail("unexpected exception"); |
316 |
dl |
1.1 |
} |
317 |
|
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} |
318 |
|
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}); |
319 |
|
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t.start(); |
320 |
|
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Thread.sleep(SHORT_DELAY_MS); |
321 |
|
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ft.cancel(true); |
322 |
|
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Thread.sleep(SHORT_DELAY_MS); |
323 |
|
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t.join(); |
324 |
dl |
1.2 |
} catch(InterruptedException ie){ |
325 |
dl |
1.1 |
fail("unexpected exception"); |
326 |
|
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} |
327 |
|
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} |
328 |
|
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|
329 |
|
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public void testGet_ExecutionException(){ |
330 |
|
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final FutureTask ft = new FutureTask(new Callable(){ |
331 |
|
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public Object call(){ |
332 |
|
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int i = 5/0; |
333 |
|
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return Boolean.TRUE; |
334 |
|
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} |
335 |
|
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}); |
336 |
|
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try{ |
337 |
|
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ft.run(); |
338 |
|
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ft.get(); |
339 |
|
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fail("should throw"); |
340 |
dl |
1.2 |
} catch(ExecutionException success){ |
341 |
dl |
1.1 |
} |
342 |
|
|
catch(Exception e){ |
343 |
|
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fail("unexpected exception"); |
344 |
|
|
} |
345 |
|
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} |
346 |
|
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|
347 |
|
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public void testTimedGet_ExecutionException2(){ |
348 |
|
|
final FutureTask ft = new FutureTask(new Callable(){ |
349 |
|
|
public Object call(){ |
350 |
|
|
int i = 5/0; |
351 |
|
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return Boolean.TRUE; |
352 |
|
|
} |
353 |
|
|
}); |
354 |
|
|
try{ |
355 |
|
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ft.run(); |
356 |
|
|
ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
357 |
|
|
fail("should throw"); |
358 |
dl |
1.2 |
} catch(ExecutionException success) { |
359 |
|
|
} catch(TimeoutException success) { } // unlikely but OK |
360 |
dl |
1.1 |
catch(Exception e){ |
361 |
|
|
fail("unexpected exception"); |
362 |
|
|
} |
363 |
|
|
} |
364 |
|
|
|
365 |
|
|
|
366 |
|
|
public void testGet_InterruptedException(){ |
367 |
dl |
1.4 |
final FutureTask ft = new FutureTask(new NoOpCallable()); |
368 |
dl |
1.1 |
Thread t = new Thread(new Runnable(){ |
369 |
|
|
public void run(){ |
370 |
|
|
try{ |
371 |
|
|
ft.get(); |
372 |
dl |
1.4 |
threadFail("should throw"); |
373 |
dl |
1.1 |
} catch(InterruptedException success){ |
374 |
|
|
} catch(Exception e){ |
375 |
dl |
1.4 |
threadFail("unexpected exception"); |
376 |
dl |
1.1 |
} |
377 |
|
|
} |
378 |
|
|
}); |
379 |
|
|
try { |
380 |
|
|
t.start(); |
381 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
382 |
|
|
t.interrupt(); |
383 |
|
|
t.join(); |
384 |
|
|
} catch(Exception e){ |
385 |
|
|
fail("unexpected exception"); |
386 |
|
|
} |
387 |
|
|
} |
388 |
|
|
|
389 |
|
|
public void testTimedGet_InterruptedException2(){ |
390 |
dl |
1.4 |
final FutureTask ft = new FutureTask(new NoOpCallable()); |
391 |
dl |
1.1 |
Thread t = new Thread(new Runnable(){ |
392 |
|
|
public void run(){ |
393 |
|
|
try{ |
394 |
dl |
1.4 |
ft.get(LONG_DELAY_MS,TimeUnit.MILLISECONDS); |
395 |
|
|
threadFail("should throw"); |
396 |
dl |
1.2 |
} catch(InterruptedException success){} |
397 |
dl |
1.1 |
catch(Exception e){ |
398 |
dl |
1.4 |
threadFail("unexpected exception"); |
399 |
dl |
1.1 |
} |
400 |
|
|
} |
401 |
|
|
}); |
402 |
|
|
try { |
403 |
|
|
t.start(); |
404 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
405 |
|
|
t.interrupt(); |
406 |
|
|
t.join(); |
407 |
|
|
} catch(Exception e){ |
408 |
|
|
fail("unexpected exception"); |
409 |
|
|
} |
410 |
|
|
} |
411 |
|
|
|
412 |
|
|
public void testGet_TimeoutException(){ |
413 |
|
|
try{ |
414 |
dl |
1.4 |
FutureTask ft = new FutureTask(new NoOpCallable()); |
415 |
dl |
1.1 |
ft.get(1,TimeUnit.MILLISECONDS); |
416 |
|
|
fail("should throw"); |
417 |
dl |
1.2 |
} catch(TimeoutException success){} |
418 |
|
|
catch(Exception success){ |
419 |
dl |
1.1 |
fail("unexpected exception"); |
420 |
|
|
} |
421 |
|
|
} |
422 |
|
|
|
423 |
|
|
} |