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root/jsr166/jsr166/src/test/tck/Collection8Test.java
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Comparing jsr166/src/test/tck/Collection8Test.java (file contents):
Revision 1.47 by jsr166, Mon Aug 21 20:12:36 2017 UTC vs.
Revision 1.52 by jsr166, Sat May 5 18:29:53 2018 UTC

# Line 8 | Line 8
8   import static java.util.concurrent.TimeUnit.HOURS;
9   import static java.util.concurrent.TimeUnit.MILLISECONDS;
10  
11 + import java.util.ArrayDeque;
12   import java.util.ArrayList;
13   import java.util.Arrays;
14   import java.util.Collection;
# Line 19 | Line 20 | import java.util.Iterator;
20   import java.util.List;
21   import java.util.NoSuchElementException;
22   import java.util.Queue;
23 + import java.util.Set;
24   import java.util.Spliterator;
25   import java.util.concurrent.BlockingDeque;
26   import java.util.concurrent.BlockingQueue;
# Line 59 | Line 61 | public class Collection8Test extends JSR
61  
62      Object bomb() {
63          return new Object() {
64 <            public boolean equals(Object x) { throw new AssertionError(); }
65 <            public int hashCode() { throw new AssertionError(); }
64 >            @Override public boolean equals(Object x) { throw new AssertionError(); }
65 >            @Override public int hashCode() { throw new AssertionError(); }
66 >            @Override public String toString() { throw new AssertionError(); }
67          };
68      }
69  
# Line 92 | Line 95 | public class Collection8Test extends JSR
95          assertTrue(c.isEmpty());
96          assertEquals(0, c.size());
97          assertEquals("[]", c.toString());
98 +        if (c instanceof List<?>) {
99 +            List x = (List) c;
100 +            assertEquals(1, x.hashCode());
101 +            assertEquals(x, Collections.emptyList());
102 +            assertEquals(Collections.emptyList(), x);
103 +            assertEquals(-1, x.indexOf(impl.makeElement(86)));
104 +            assertEquals(-1, x.lastIndexOf(impl.makeElement(99)));
105 +            assertThrows(
106 +                IndexOutOfBoundsException.class,
107 +                () -> x.get(0),
108 +                () -> x.set(0, impl.makeElement(42)));
109 +        }
110 +        else if (c instanceof Set<?>) {
111 +            assertEquals(0, c.hashCode());
112 +            assertEquals(c, Collections.emptySet());
113 +            assertEquals(Collections.emptySet(), c);
114 +        }
115          {
116              Object[] a = c.toArray();
117              assertEquals(0, a.length);
# Line 252 | Line 272 | public class Collection8Test extends JSR
272                  () -> d.pop(),
273                  () -> d.descendingIterator().next());
274          }
275 +        if (c instanceof List) {
276 +            List x = (List) c;
277 +            assertThrows(
278 +                NoSuchElementException.class,
279 +                () -> x.iterator().next(),
280 +                () -> x.listIterator().next(),
281 +                () -> x.listIterator(0).next(),
282 +                () -> x.listIterator().previous(),
283 +                () -> x.listIterator(0).previous());
284 +        }
285      }
286  
287      public void testRemoveIf() {
# Line 877 | Line 907 | public class Collection8Test extends JSR
907          }
908      }
909  
910 +    public void testCollectionCopies() throws Exception {
911 +        ThreadLocalRandom rnd = ThreadLocalRandom.current();
912 +        Collection c = impl.emptyCollection();
913 +        for (int n = rnd.nextInt(4); n--> 0; )
914 +            c.add(impl.makeElement(rnd.nextInt()));
915 +        assertEquals(c, c);
916 +        if (c instanceof List)
917 +            assertCollectionsEquals(c, new ArrayList(c));
918 +        else if (c instanceof Set)
919 +            assertCollectionsEquals(c, new HashSet(c));
920 +        else if (c instanceof Deque)
921 +            assertCollectionsEquivalent(c, new ArrayDeque(c));
922 +
923 +        Collection clone = cloneableClone(c);
924 +        if (clone != null) {
925 +            assertSame(c.getClass(), clone.getClass());
926 +            assertCollectionsEquivalent(c, clone);
927 +        }
928 +        try {
929 +            Collection serialClone = serialClonePossiblyFailing(c);
930 +            assertSame(c.getClass(), serialClone.getClass());
931 +            assertCollectionsEquivalent(c, serialClone);
932 +        } catch (java.io.NotSerializableException acceptable) {}
933 +    }
934 +
935 +    public void testReplaceAllIsNotStructuralModification() {
936 +        Collection c = impl.emptyCollection();
937 +        if (!(c instanceof List))
938 +            return;
939 +        List list = (List) c;
940 +        ThreadLocalRandom rnd = ThreadLocalRandom.current();
941 +        for (int n = rnd.nextInt(2, 10); n--> 0; )
942 +            list.add(impl.makeElement(rnd.nextInt()));
943 +        ArrayList copy = new ArrayList(list);
944 +        int size = list.size(), half = size / 2;
945 +        Iterator it = list.iterator();
946 +        for (int i = 0; i < half; i++)
947 +            assertEquals(it.next(), copy.get(i));
948 +        list.replaceAll(n -> n);
949 +        // ConcurrentModificationException must not be thrown here.
950 +        for (int i = half; i < size; i++)
951 +            assertEquals(it.next(), copy.get(i));
952 +    }
953 +
954   //     public void testCollection8DebugFail() {
955   //         fail(impl.klazz().getSimpleName());
956   //     }

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