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root/jsr166/jsr166/src/test/tck/ScheduledExecutorTest.java
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Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.17 by dl, Tue Jan 20 20:20:56 2004 UTC vs.
Revision 1.18 by dl, Wed Jan 21 01:47:07 2004 UTC

# Line 9 | Line 9
9   import junit.framework.*;
10   import java.util.*;
11   import java.util.concurrent.*;
12 + import java.util.concurrent.atomic.*;
13  
14   public class ScheduledExecutorTest extends JSR166TestCase {
15      public static void main(String[] args) {
# Line 104 | Line 105 | public class ScheduledExecutorTest exten
105          }
106      }
107  
108 +    static class RunnableCounter implements Runnable {
109 +        AtomicInteger count = new AtomicInteger(0);
110 +        public void run() { count.getAndIncrement(); }
111 +    }
112 +
113      /**
114       * scheduleWithFixedDelay executes runnable after given initial delay
115       */
# Line 123 | Line 129 | public class ScheduledExecutorTest exten
129      }
130      
131      /**
132 +     * scheduleAtFixedRate executes series of tasks at given rate
133 +     */
134 +    public void testFixedRateSequence() {
135 +        try {
136 +            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
137 +            RunnableCounter counter = new RunnableCounter();
138 +            ScheduledFuture h =
139 +                p1.scheduleAtFixedRate(counter, 0, 1, TimeUnit.MILLISECONDS);
140 +            Thread.sleep(SMALL_DELAY_MS);
141 +            h.cancel(true);
142 +            int c = counter.count.get();
143 +            // By time scaling conventions, we must have at least
144 +            // an execution per SHORT delay, but no more than one SHORT more
145 +            assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
146 +            assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
147 +            assertTrue(h.isDone());
148 +            joinPool(p1);
149 +        } catch(Exception e){
150 +            unexpectedException();
151 +        }
152 +    }
153 +
154 +    /**
155 +     * scheduleWithFixedDelay executes series of tasks with given period
156 +     */
157 +    public void testFixedDelaySequence() {
158 +        try {
159 +            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
160 +            RunnableCounter counter = new RunnableCounter();
161 +            ScheduledFuture h =
162 +                p1.scheduleWithFixedDelay(counter, 0, 1, TimeUnit.MILLISECONDS);
163 +            Thread.sleep(SMALL_DELAY_MS);
164 +            h.cancel(true);
165 +            int c = counter.count.get();
166 +            assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
167 +            assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
168 +            assertTrue(h.isDone());
169 +            joinPool(p1);
170 +        } catch(Exception e){
171 +            unexpectedException();
172 +        }
173 +    }
174 +
175 +
176 +    /**
177       *  execute (null) throws NPE
178       */
179      public void testExecuteNull() {
# Line 672 | Line 723 | public class ScheduledExecutorTest exten
723          }
724      }
725  
675 –
676 –
677 –
678 –
726      /**
727       * invokeAny(null) throws NPE
728       */

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