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root/jsr166/jsr166/src/test/tck/ArrayDequeTest.java
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Comparing jsr166/src/test/tck/ArrayDequeTest.java (file contents):
Revision 1.46 by jsr166, Mon Oct 17 15:27:57 2016 UTC vs.
Revision 1.51 by jsr166, Tue Oct 25 01:32:55 2016 UTC

# Line 14 | Line 14 | import java.util.Iterator;
14   import java.util.NoSuchElementException;
15   import java.util.Queue;
16   import java.util.Random;
17 import java.util.Spliterator;
17   import java.util.concurrent.ThreadLocalRandom;
18  
19   import junit.framework.Test;
# Line 989 | Line 988 | public class ArrayDequeTest extends JSR1
988          }
989      }
990  
992    /**
993     * Spliterator characteristics are as advertised
994     */
995    public void testSpliterator_characteristics() {
996        ArrayDeque q = new ArrayDeque();
997        Spliterator s = q.spliterator();
998        int characteristics = s.characteristics();
999        int required = Spliterator.NONNULL
1000            | Spliterator.ORDERED
1001            | Spliterator.SIZED
1002            | Spliterator.SUBSIZED;
1003        assertEquals(required, characteristics & required);
1004        assertEquals(0, characteristics
1005                     & (Spliterator.CONCURRENT
1006                        | Spliterator.DISTINCT
1007                        | Spliterator.IMMUTABLE
1008                        | Spliterator.SORTED));
1009    }
1010
1011    /**
1012     * Handle capacities near Integer.MAX_VALUE.
1013     * ant -Dvmoptions=-Xmx24g -Djsr166.expensiveTests=true -Djsr166.tckTestClass=ArrayDequeTest -Djsr166.methodFilter=testHuge tck
1014     */
1015    public void testHuge() {
1016        if (! (testImplementationDetails
1017               && expensiveTests
1018               && Runtime.getRuntime().freeMemory() > 21_000_000_000L))
1019            return;
1020        int maxSize = Integer.MAX_VALUE - 8;
1021        ArrayDeque<Integer> q;
1022
1023        q = new ArrayDeque<>(maxSize);
1024
1025        assertThrows(OutOfMemoryError.class,
1026                     () -> new ArrayDeque<>(Integer.MAX_VALUE));
1027
1028        q = populatedDeque(0);
1029        q.addAll(Collections.nCopies(maxSize - 2, (Integer) 42));
1030        assertEquals((Integer) 42, q.peekFirst());
1031        assertEquals((Integer) 42, q.peekLast());
1032        assertEquals(maxSize - 2, q.size());
1033        q.addFirst((Integer) 0);
1034        q.addLast((Integer) 1);
1035        assertEquals((Integer) 0, q.peekFirst());
1036        assertEquals((Integer) 1, q.peekLast());
1037        assertEquals(maxSize, q.size());
1038    }
1039
991   }

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