ViewVC Help
View File | Revision Log | Show Annotations | Download File | Root Listing
root/jsr166/jsr166/src/test/tck/ConcurrentHashMapTest.java
(Generate patch)

Comparing jsr166/src/test/tck/ConcurrentHashMapTest.java (file contents):
Revision 1.50 by jsr166, Mon Aug 22 18:38:28 2016 UTC vs.
Revision 1.53 by jsr166, Sat Mar 11 17:33:32 2017 UTC

# Line 16 | Line 16 | import java.util.Map;
16   import java.util.Random;
17   import java.util.Set;
18   import java.util.concurrent.ConcurrentHashMap;
19 – import java.util.concurrent.ExecutorService;
20 – import java.util.concurrent.Executors;
19  
20   import junit.framework.Test;
21   import junit.framework.TestSuite;
# Line 34 | Line 32 | public class ConcurrentHashMapTest exten
32       * Returns a new map from Integers 1-5 to Strings "A"-"E".
33       */
34      private static ConcurrentHashMap<Integer, String> map5() {
35 <        ConcurrentHashMap map = new ConcurrentHashMap<Integer, String>(5);
35 >        ConcurrentHashMap<Integer, String> map = new ConcurrentHashMap<>(5);
36          assertTrue(map.isEmpty());
37          map.put(one, "A");
38          map.put(two, "B");
# Line 837 | Line 835 | public class ConcurrentHashMapTest exten
835          assertEquals(mapSize, map.size());
836      }
837  
840 –    /**
841 –     * Tests performance of computeIfAbsent when the element is present.
842 –     * See JDK-8161372
843 –     * ant -Djsr166.tckTestClass=ConcurrentHashMapTest -Djsr166.methodFilter=testcomputeIfAbsent_performance -Djsr166.expensiveTests=true tck
844 –     */
845 –    public void testcomputeIfAbsent_performance() {
846 –        final int mapSize = 20;
847 –        final int iterations = expensiveTests ? (1 << 23) : mapSize * 2;
848 –        final int threads = expensiveTests ? 10 : 2;
849 –        final ConcurrentHashMap<Integer, Integer> map = new ConcurrentHashMap<>();
850 –        for (int i = 0; i < mapSize; i++)
851 –            map.put(i, i);
852 –        final ExecutorService pool = Executors.newFixedThreadPool(2);
853 –        try (PoolCleaner cleaner = cleaner(pool)) {
854 –            Runnable r = new CheckedRunnable() {
855 –                public void realRun() {
856 –                    int result = 0;
857 –                    for (int i = 0; i < iterations; i++)
858 –                        result += map.computeIfAbsent(i % mapSize, (k) -> k + k);
859 –                    if (result == -42) throw new Error();
860 –                }};
861 –            for (int i = 0; i < threads; i++)
862 –                pool.execute(r);
863 –        }
864 –    }
865 –
838   }

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines