[ViewVC] Diff of: jsr166/jsr166/src/test/tck/ConcurrentHashMap8Test.java

Comparing jsr166/src/test/tck/ConcurrentHashMap8Test.java (file contents):
Revision 1.1 by dl, Thu Mar 21 19:06:54 2013 UTC vs.
Revision 1.36 by jsr166, Sun Jan 7 23:31:01 2018 UTC

+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/publicdomain/zero/1.0/
-–
+ * Other contributors include Andrew Wright, Jeffrey Hayes,
-–
+ * Pat Fisher, Mike Judd.
+ */
-<
+import junit.framework.*;
-<
+import java.util.*;
->
+import static java.util.Spliterator.CONCURRENT;
->
+import static java.util.Spliterator.DISTINCT;
->
+import static java.util.Spliterator.NONNULL;
->
->
+import java.util.AbstractMap;
->
+import java.util.Arrays;
->
+import java.util.Collection;
->
+import java.util.Iterator;
->
+import java.util.Map;
->
+import java.util.NoSuchElementException;
->
+import java.util.Set;
->
+import java.util.Spliterator;
->
+import java.util.concurrent.ExecutorService;
->
+import java.util.concurrent.Executors;
+import java.util.concurrent.ConcurrentHashMap;
-+
+import java.util.concurrent.atomic.LongAdder;
-+
+import java.util.function.BiFunction;
-+
-+
+import junit.framework.Test;
-+
+import junit.framework.TestSuite;
+public class ConcurrentHashMap8Test extends JSR166TestCase {
+    public static void main(String[] args) {
-<
+        junit.textui.TestRunner.run(suite());
->
+        main(suite(), args);
+    public static Test suite() {
+        return new TestSuite(ConcurrentHashMap8Test.class);
+    /**
-+
+     * getOrDefault returns value if present, else default
-+
+     */
-+
+    public void testGetOrDefault() {
-+
+        ConcurrentHashMap map = map5();
-+
+        assertEquals(map.getOrDefault(one, "Z"), "A");
-+
+        assertEquals(map.getOrDefault(six, "Z"), "Z");
-+
+    }
-+
-+
+    /**
+     * computeIfAbsent adds when the given key is not present
+     */
+    public void testComputeIfAbsent() {
+        ConcurrentHashMap map = map5();
-<
+        map.computeIfAbsent(six, (x) -> "Z");
->
+        map.computeIfAbsent(six, x -> "Z");
+        assertTrue(map.containsKey(six));
+    /**
-<
+     * computeIfAbsent does not replace  if the key is already present
->
+     * computeIfAbsent does not replace if the key is already present
+     */
+    public void testComputeIfAbsent2() {
+        ConcurrentHashMap map = map5();
-<
+        assertEquals("A", map.computeIfAbsent(one, (x) -> "Z"));
->
+        assertEquals("A", map.computeIfAbsent(one, x -> "Z"));
+    /**
+     */
+    public void testComputeIfAbsent3() {
+        ConcurrentHashMap map = map5();
-<
+        map.computeIfAbsent(six, (x) -> null);
->
+        map.computeIfAbsent(six, x -> null);
+        assertFalse(map.containsKey(six));
-<
->
+    /**
-<
+     * computeIfPresent does not replace  if the key is already present
->
+     * computeIfPresent does not replace if the key is already present
+     */
+    public void testComputeIfPresent() {
+        ConcurrentHashMap map = map5();
+    /**
-<
+     * compute does not replace  if the function returns null
->
+     * compute does not replace if the function returns null
+     */
+    public void testCompute() {
+        ConcurrentHashMap map = map5();
+        assertFalse(map.containsKey(one));
-+
+    static Set<Integer> populatedSet(int n) {
-+
+        Set<Integer> a = ConcurrentHashMap.<Integer>newKeySet();
-+
+        assertTrue(a.isEmpty());
-+
+        for (int i = 0; i < n; i++)
-+
+            assertTrue(a.add(i));
-+
+        assertEquals(n == 0, a.isEmpty());
-+
+        assertEquals(n, a.size());
-+
+        return a;
-+
+    }
-+
-+
+    static Set populatedSet(Integer[] elements) {
-+
+        Set<Integer> a = ConcurrentHashMap.<Integer>newKeySet();
-+
+        assertTrue(a.isEmpty());
-+
+        for (int i = 0; i < elements.length; i++)
-+
+            assertTrue(a.add(elements[i]));
-+
+        assertFalse(a.isEmpty());
-+
+        assertEquals(elements.length, a.size());
-+
+        return a;
-+
+    }
-+
-+
+    /**
-+
+     * replaceAll replaces all matching values.
-+
+     */
-+
+    public void testReplaceAll() {
-+
+        ConcurrentHashMap<Integer, String> map = map5();
-+
+        map.replaceAll((x, y) -> (x > 3) ? "Z" : y);
-+
+        assertEquals("A", map.get(one));
-+
+        assertEquals("B", map.get(two));
-+
+        assertEquals("C", map.get(three));
-+
+        assertEquals("Z", map.get(four));
-+
+        assertEquals("Z", map.get(five));
-+
+    }
-+
-+
+    /**
-+
+     * Default-constructed set is empty
-+
+     */
-+
+    public void testNewKeySet() {
-+
+        Set a = ConcurrentHashMap.newKeySet();
-+
+        assertTrue(a.isEmpty());
-+
+    }
-+
-+
+    /**
-+
+     * keySet.add adds the key with the established value to the map;
-+
+     * remove removes it.
-+
+     */
-+
+    public void testKeySetAddRemove() {
-+
+        ConcurrentHashMap map = map5();
-+
+        Set set1 = map.keySet();
-+
+        Set set2 = map.keySet(true);
-+
+        set2.add(six);
-+
+        assertSame(map, ((ConcurrentHashMap.KeySetView)set2).getMap());
-+
+        assertSame(map, ((ConcurrentHashMap.KeySetView)set1).getMap());
-+
+        assertEquals(set2.size(), map.size());
-+
+        assertEquals(set1.size(), map.size());
-+
+        assertTrue((Boolean)map.get(six));
-+
+        assertTrue(set1.contains(six));
-+
+        assertTrue(set2.contains(six));
-+
+        set2.remove(six);
-+
+        assertNull(map.get(six));
-+
+        assertFalse(set1.contains(six));
-+
+        assertFalse(set2.contains(six));
-+
+    }
-+
-+
+    /**
-+
+     * keySet.addAll adds each element from the given collection
-+
+     */
-+
+    public void testAddAll() {
-+
+        Set full = populatedSet(3);
-+
+        assertTrue(full.addAll(Arrays.asList(three, four, five)));
-+
+        assertEquals(6, full.size());
-+
+        assertFalse(full.addAll(Arrays.asList(three, four, five)));
-+
+        assertEquals(6, full.size());
-+
+    }
-+
-+
+    /**
-+
+     * keySet.addAll adds each element from the given collection that did not
-+
+     * already exist in the set
-+
+     */
-+
+    public void testAddAll2() {
-+
+        Set full = populatedSet(3);
-+
+        // "one" is duplicate and will not be added
-+
+        assertTrue(full.addAll(Arrays.asList(three, four, one)));
-+
+        assertEquals(5, full.size());
-+
+        assertFalse(full.addAll(Arrays.asList(three, four, one)));
-+
+        assertEquals(5, full.size());
-+
+    }
-+
-+
+    /**
-+
+     * keySet.add will not add the element if it already exists in the set
-+
+     */
-+
+    public void testAdd2() {
-+
+        Set full = populatedSet(3);
-+
+        assertFalse(full.add(one));
-+
+        assertEquals(3, full.size());
-+
+    }
-+
-+
+    /**
-+
+     * keySet.add adds the element when it does not exist in the set
-+
+     */
-+
+    public void testAdd3() {
-+
+        Set full = populatedSet(3);
-+
+        assertTrue(full.add(three));
-+
+        assertTrue(full.contains(three));
-+
+        assertFalse(full.add(three));
-+
+        assertTrue(full.contains(three));
-+
+    }
-+
-+
+    /**
-+
+     * keySet.add throws UnsupportedOperationException if no default
-+
+     * mapped value
-+
+     */
-+
+    public void testAdd4() {
-+
+        Set full = map5().keySet();
-+
+        try {
-+
+            full.add(three);
-+
+            shouldThrow();
-+
+        } catch (UnsupportedOperationException success) {}
-+
+    }
-+
-+
+    /**
-+
+     * keySet.add throws NullPointerException if the specified key is
-+
+     * null
-+
+     */
-+
+    public void testAdd5() {
-+
+        Set full = populatedSet(3);
-+
+        try {
-+
+            full.add(null);
-+
+            shouldThrow();
-+
+        } catch (NullPointerException success) {}
-+
+    }
-+
-+
+    /**
-+
+     * KeySetView.getMappedValue returns the map's mapped value
-+
+     */
-+
+    public void testGetMappedValue() {
-+
+        ConcurrentHashMap map = map5();
-+
+        assertNull(map.keySet().getMappedValue());
-+
+        try {
-+
+            map.keySet(null);
-+
+            shouldThrow();
-+
+        } catch (NullPointerException success) {}
-+
+        ConcurrentHashMap.KeySetView set = map.keySet(one);
-+
+        assertFalse(set.add(one));
-+
+        assertTrue(set.add(six));
-+
+        assertTrue(set.add(seven));
-+
+        assertSame(one, set.getMappedValue());
-+
+        assertNotSame(one, map.get(one));
-+
+        assertSame(one, map.get(six));
-+
+        assertSame(one, map.get(seven));
-+
+    }
-+
-+
+    void checkSpliteratorCharacteristics(Spliterator<?> sp,
-+
+                                         int requiredCharacteristics) {
-+
+        assertEquals(requiredCharacteristics,
-+
+                     requiredCharacteristics & sp.characteristics());
-+
+    }
-+
-+
+    /**
-+
+     * KeySetView.spliterator returns spliterator over the elements in this set
-+
+     */
-+
+    public void testKeySetSpliterator() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap map = map5();
-+
+        Set set = map.keySet();
-+
+        Spliterator<Integer> sp = set.spliterator();
-+
+        checkSpliteratorCharacteristics(sp, CONCURRENT | DISTINCT | NONNULL);
-+
+        assertEquals(sp.estimateSize(), map.size());
-+
+        Spliterator<Integer> sp2 = sp.trySplit();
-+
+        sp.forEachRemaining((Integer x) -> adder.add(x.longValue()));
-+
+        long v = adder.sumThenReset();
-+
+        sp2.forEachRemaining((Integer x) -> adder.add(x.longValue()));
-+
+        long v2 = adder.sum();
-+
+        assertEquals(v + v2, 15);
-+
+    }
-+
-+
+    /**
-+
+     * keyset.clear removes all elements from the set
-+
+     */
-+
+    public void testClear() {
-+
+        Set full = populatedSet(3);
-+
+        full.clear();
-+
+        assertEquals(0, full.size());
-+
+    }
-+
-+
+    /**
-+
+     * keyset.contains returns true for added elements
-+
+     */
-+
+    public void testContains() {
-+
+        Set full = populatedSet(3);
-+
+        assertTrue(full.contains(one));
-+
+        assertFalse(full.contains(five));
-+
+    }
-+
-+
+    /**
-+
+     * KeySets with equal elements are equal
-+
+     */
-+
+    public void testEquals() {
-+
+        Set a = populatedSet(3);
-+
+        Set b = populatedSet(3);
-+
+        assertTrue(a.equals(b));
-+
+        assertTrue(b.equals(a));
-+
+        assertEquals(a.hashCode(), b.hashCode());
-+
+        a.add(m1);
-+
+        assertFalse(a.equals(b));
-+
+        assertFalse(b.equals(a));
-+
+        b.add(m1);
-+
+        assertTrue(a.equals(b));
-+
+        assertTrue(b.equals(a));
-+
+        assertEquals(a.hashCode(), b.hashCode());
-+
+    }
-+
-+
+    /**
-+
+     * KeySet.containsAll returns true for collections with subset of elements
-+
+     */
-+
+    public void testContainsAll() {
-+
+        Collection full = populatedSet(3);
-+
+        assertTrue(full.containsAll(Arrays.asList()));
-+
+        assertTrue(full.containsAll(Arrays.asList(one)));
-+
+        assertTrue(full.containsAll(Arrays.asList(one, two)));
-+
+        assertFalse(full.containsAll(Arrays.asList(one, two, six)));
-+
+        assertFalse(full.containsAll(Arrays.asList(six)));
-+
+    }
-+
-+
+    /**
-+
+     * KeySet.isEmpty is true when empty, else false
-+
+     */
-+
+    public void testIsEmpty() {
-+
+        assertTrue(populatedSet(0).isEmpty());
-+
+        assertFalse(populatedSet(3).isEmpty());
-+
+    }
-+
-+
+    /**
-+
+     * KeySet.iterator() returns an iterator containing the elements of the
-+
+     * set
-+
+     */
-+
+    public void testIterator() {
-+
+        Collection empty = ConcurrentHashMap.newKeySet();
-+
+        int size = 20;
-+
+        assertFalse(empty.iterator().hasNext());
-+
+        try {
-+
+            empty.iterator().next();
-+
+            shouldThrow();
-+
+        } catch (NoSuchElementException success) {}
-+
-+
+        Integer[] elements = new Integer[size];
-+
+        for (int i = 0; i < size; i++)
-+
+            elements[i] = i;
-+
+        shuffle(elements);
-+
+        Collection<Integer> full = populatedSet(elements);
-+
-+
+        Iterator it = full.iterator();
-+
+        for (int j = 0; j < size; j++) {
-+
+            assertTrue(it.hasNext());
-+
+            it.next();
-+
+        }
-+
+        assertIteratorExhausted(it);
-+
+    }
-+
-+
+    /**
-+
+     * iterator of empty collections has no elements
-+
+     */
-+
+    public void testEmptyIterator() {
-+
+        assertIteratorExhausted(ConcurrentHashMap.newKeySet().iterator());
-+
+        assertIteratorExhausted(new ConcurrentHashMap().entrySet().iterator());
-+
+        assertIteratorExhausted(new ConcurrentHashMap().values().iterator());
-+
+        assertIteratorExhausted(new ConcurrentHashMap().keySet().iterator());
-+
+    }
-+
-+
+    /**
-+
+     * KeySet.iterator.remove removes current element
-+
+     */
-+
+    public void testIteratorRemove() {
-+
+        Set q = populatedSet(3);
-+
+        Iterator it = q.iterator();
-+
+        Object removed = it.next();
-+
+        it.remove();
-+
-+
+        it = q.iterator();
-+
+        assertFalse(it.next().equals(removed));
-+
+        assertFalse(it.next().equals(removed));
-+
+        assertFalse(it.hasNext());
-+
+    }
-+
-+
+    /**
-+
+     * KeySet.toString holds toString of elements
-+
+     */
-+
+    public void testToString() {
-+
+        assertEquals("[]", ConcurrentHashMap.newKeySet().toString());
-+
+        Set full = populatedSet(3);
-+
+        String s = full.toString();
-+
+        for (int i = 0; i < 3; ++i)
-+
+            assertTrue(s.contains(String.valueOf(i)));
-+
+    }
-+
-+
+    /**
-+
+     * KeySet.removeAll removes all elements from the given collection
-+
+     */
-+
+    public void testRemoveAll() {
-+
+        Set full = populatedSet(3);
-+
+        assertTrue(full.removeAll(Arrays.asList(one, two)));
-+
+        assertEquals(1, full.size());
-+
+        assertFalse(full.removeAll(Arrays.asList(one, two)));
-+
+        assertEquals(1, full.size());
-+
+    }
-+
-+
+    /**
-+
+     * KeySet.remove removes an element
-+
+     */
-+
+    public void testRemove() {
-+
+        Set full = populatedSet(3);
-+
+        full.remove(one);
-+
+        assertFalse(full.contains(one));
-+
+        assertEquals(2, full.size());
-+
+    }
-+
-+
+    /**
-+
+     * keySet.size returns the number of elements
-+
+     */
-+
+    public void testSize() {
-+
+        Set empty = ConcurrentHashMap.newKeySet();
-+
+        Set full = populatedSet(3);
-+
+        assertEquals(3, full.size());
-+
+        assertEquals(0, empty.size());
-+
+    }
-+
-+
+    /**
-+
+     * KeySet.toArray() returns an Object array containing all elements from
-+
+     * the set
-+
+     */
-+
+    public void testToArray() {
-+
+        Object[] a = ConcurrentHashMap.newKeySet().toArray();
-+
+        assertTrue(Arrays.equals(new Object[0], a));
-+
+        assertSame(Object[].class, a.getClass());
-+
+        int size = 20;
-+
+        Integer[] elements = new Integer[size];
-+
+        for (int i = 0; i < size; i++)
-+
+            elements[i] = i;
-+
+        shuffle(elements);
-+
+        Collection<Integer> full = populatedSet(elements);
-+
-+
+        assertTrue(Arrays.asList(elements).containsAll(Arrays.asList(full.toArray())));
-+
+        assertTrue(full.containsAll(Arrays.asList(full.toArray())));
-+
+        assertSame(Object[].class, full.toArray().getClass());
-+
+    }
-+
-+
+    /**
-+
+     * toArray(Integer array) returns an Integer array containing all
-+
+     * elements from the set
-+
+     */
-+
+    public void testToArray2() {
-+
+        Collection empty = ConcurrentHashMap.newKeySet();
-+
+        Integer[] a;
-+
+        int size = 20;
-+
-+
+        a = new Integer[0];
-+
+        assertSame(a, empty.toArray(a));
-+
-+
+        a = new Integer[size / 2];
-+
+        Arrays.fill(a, 42);
-+
+        assertSame(a, empty.toArray(a));
-+
+        assertNull(a[0]);
-+
+        for (int i = 1; i < a.length; i++)
-+
+            assertEquals(42, (int) a[i]);
-+
-+
+        Integer[] elements = new Integer[size];
-+
+        for (int i = 0; i < size; i++)
-+
+            elements[i] = i;
-+
+        shuffle(elements);
-+
+        Collection<Integer> full = populatedSet(elements);
-+
-+
+        Arrays.fill(a, 42);
-+
+        assertTrue(Arrays.asList(elements).containsAll(Arrays.asList(full.toArray(a))));
-+
+        for (int i = 0; i < a.length; i++)
-+
+            assertEquals(42, (int) a[i]);
-+
+        assertSame(Integer[].class, full.toArray(a).getClass());
-+
-+
+        a = new Integer[size];
-+
+        Arrays.fill(a, 42);
-+
+        assertSame(a, full.toArray(a));
-+
+        assertTrue(Arrays.asList(elements).containsAll(Arrays.asList(full.toArray(a))));
-+
+    }
-+
+    /**
-+
+     * A deserialized/reserialized set equals original
-+
+     */
-+
+    public void testSerialization() throws Exception {
-+
+        int size = 20;
-+
+        Set x = populatedSet(size);
-+
+        Set y = serialClone(x);
-+
-+
+        assertNotSame(x, y);
-+
+        assertEquals(x.size(), y.size());
-+
+        assertEquals(x, y);
-+
+        assertEquals(y, x);
-+
+    }
-+
-+
+    static final int SIZE = 10000;
-+
+    static ConcurrentHashMap<Long, Long> longMap;
-+
-+
+    static ConcurrentHashMap<Long, Long> longMap() {
-+
+        if (longMap == null) {
-+
+            longMap = new ConcurrentHashMap<Long, Long>(SIZE);
-+
+            for (int i = 0; i < SIZE; ++i)
-+
+                longMap.put(Long.valueOf(i), Long.valueOf(2 *i));
-+
+        }
-+
+        return longMap;
-+
+    }
-+
-+
+    // explicit function class to avoid type inference problems
-+
+    static class AddKeys implements BiFunction<Map.Entry<Long,Long>, Map.Entry<Long,Long>, Map.Entry<Long,Long>> {
-+
+        public Map.Entry<Long,Long> apply(Map.Entry<Long,Long> x, Map.Entry<Long,Long> y) {
-+
+            return new AbstractMap.SimpleEntry<Long,Long>
-+
+             (Long.valueOf(x.getKey().longValue() + y.getKey().longValue()),
-+
+              Long.valueOf(1L));
-+
+        }
-+
+    }
-+
-+
+    /**
-+
+     * forEachKeySequentially traverses all keys
-+
+     */
-+
+    public void testForEachKeySequentially() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachKey(Long.MAX_VALUE, (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * forEachValueSequentially traverses all values
-+
+     */
-+
+    public void testForEachValueSequentially() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachValue(Long.MAX_VALUE, (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * forEachSequentially traverses all mappings
-+
+     */
-+
+    public void testForEachSequentially() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEach(Long.MAX_VALUE, (Long x, Long y) -> adder.add(x.longValue() + y.longValue()));
-+
+        assertEquals(adder.sum(), 3 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * forEachEntrySequentially traverses all entries
-+
+     */
-+
+    public void testForEachEntrySequentially() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachEntry(Long.MAX_VALUE, (Map.Entry<Long,Long> e) -> adder.add(e.getKey().longValue() + e.getValue().longValue()));
-+
+        assertEquals(adder.sum(), 3 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * forEachKeyInParallel traverses all keys
-+
+     */
-+
+    public void testForEachKeyInParallel() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachKey(1L, (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * forEachValueInParallel traverses all values
-+
+     */
-+
+    public void testForEachValueInParallel() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachValue(1L, (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * forEachInParallel traverses all mappings
-+
+     */
-+
+    public void testForEachInParallel() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEach(1L, (Long x, Long y) -> adder.add(x.longValue() + y.longValue()));
-+
+        assertEquals(adder.sum(), 3 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * forEachEntryInParallel traverses all entries
-+
+     */
-+
+    public void testForEachEntryInParallel() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachEntry(1L, (Map.Entry<Long,Long> e) -> adder.add(e.getKey().longValue() + e.getValue().longValue()));
-+
+        assertEquals(adder.sum(), 3 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * Mapped forEachKeySequentially traverses the given
-+
+     * transformations of all keys
-+
+     */
-+
+    public void testMappedForEachKeySequentially() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachKey(Long.MAX_VALUE, (Long x) -> Long.valueOf(4 * x.longValue()),
-+
+                                 (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), 4 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * Mapped forEachValueSequentially traverses the given
-+
+     * transformations of all values
-+
+     */
-+
+    public void testMappedForEachValueSequentially() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachValue(Long.MAX_VALUE, (Long x) -> Long.valueOf(4 * x.longValue()),
-+
+                                   (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), 4 * SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * Mapped forEachSequentially traverses the given
-+
+     * transformations of all mappings
-+
+     */
-+
+    public void testMappedForEachSequentially() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEach(Long.MAX_VALUE, (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()),
-+
+                              (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), 3 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * Mapped forEachEntrySequentially traverses the given
-+
+     * transformations of all entries
-+
+     */
-+
+    public void testMappedForEachEntrySequentially() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachEntry(Long.MAX_VALUE, (Map.Entry<Long,Long> e) -> Long.valueOf(e.getKey().longValue() + e.getValue().longValue()),
-+
+                                   (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), 3 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * Mapped forEachKeyInParallel traverses the given
-+
+     * transformations of all keys
-+
+     */
-+
+    public void testMappedForEachKeyInParallel() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachKey(1L, (Long x) -> Long.valueOf(4 * x.longValue()),
-+
+                               (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), 4 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * Mapped forEachValueInParallel traverses the given
-+
+     * transformations of all values
-+
+     */
-+
+    public void testMappedForEachValueInParallel() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachValue(1L, (Long x) -> Long.valueOf(4 * x.longValue()),
-+
+                                 (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), 4 * SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * Mapped forEachInParallel traverses the given
-+
+     * transformations of all mappings
-+
+     */
-+
+    public void testMappedForEachInParallel() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEach(1L, (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()),
-+
+                            (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), 3 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * Mapped forEachEntryInParallel traverses the given
-+
+     * transformations of all entries
-+
+     */
-+
+    public void testMappedForEachEntryInParallel() {
-+
+        LongAdder adder = new LongAdder();
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        m.forEachEntry(1L, (Map.Entry<Long,Long> e) -> Long.valueOf(e.getKey().longValue() + e.getValue().longValue()),
-+
+                                 (Long x) -> adder.add(x.longValue()));
-+
+        assertEquals(adder.sum(), 3 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceKeysSequentially accumulates across all keys,
-+
+     */
-+
+    public void testReduceKeysSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.reduceKeys(Long.MAX_VALUE, (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()));
-+
+        assertEquals((long)r, (long)SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceValuesSequentially accumulates across all values
-+
+     */
-+
+    public void testReduceValuesSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.reduceKeys(Long.MAX_VALUE, (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()));
-+
+        assertEquals((long)r, (long)SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceEntriesSequentially accumulates across all entries
-+
+     */
-+
+    public void testReduceEntriesSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Map.Entry<Long,Long> r;
-+
+        r = m.reduceEntries(Long.MAX_VALUE, new AddKeys());
-+
+        assertEquals(r.getKey().longValue(), (long)SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceKeysInParallel accumulates across all keys
-+
+     */
-+
+    public void testReduceKeysInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.reduceKeys(1L, (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()));
-+
+        assertEquals((long)r, (long)SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceValuesInParallel accumulates across all values
-+
+     */
-+
+    public void testReduceValuesInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.reduceValues(1L, (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()));
-+
+        assertEquals((long)r, (long)SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * reduceEntriesInParallel accumulate across all entries
-+
+     */
-+
+    public void testReduceEntriesInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Map.Entry<Long,Long> r;
-+
+        r = m.reduceEntries(1L, new AddKeys());
-+
+        assertEquals(r.getKey().longValue(), (long)SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * Mapped reduceKeysSequentially accumulates mapped keys
-+
+     */
-+
+    public void testMapReduceKeysSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r = m.reduceKeys(Long.MAX_VALUE, (Long x) -> Long.valueOf(4 * x.longValue()),
-+
+                                     (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()));
-+
+        assertEquals((long)r, (long)4 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * Mapped reduceValuesSequentially accumulates mapped values
-+
+     */
-+
+    public void testMapReduceValuesSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r = m.reduceValues(Long.MAX_VALUE, (Long x) -> Long.valueOf(4 * x.longValue()),
-+
+                                       (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()));
-+
+        assertEquals((long)r, (long)4 * SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * reduceSequentially accumulates across all transformed mappings
-+
+     */
-+
+    public void testMappedReduceSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r = m.reduce(Long.MAX_VALUE, (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()),
-+
+                                 (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()));
-+
-+
+        assertEquals((long)r, (long)3 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * Mapped reduceKeysInParallel, accumulates mapped keys
-+
+     */
-+
+    public void testMapReduceKeysInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r = m.reduceKeys(1L, (Long x) -> Long.valueOf(4 * x.longValue()),
-+
+                                   (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()));
-+
+        assertEquals((long)r, (long)4 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * Mapped reduceValuesInParallel accumulates mapped values
-+
+     */
-+
+    public void testMapReduceValuesInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r = m.reduceValues(1L, (Long x) -> Long.valueOf(4 * x.longValue()),
-+
+                                     (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()));
-+
+        assertEquals((long)r, (long)4 * SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * reduceInParallel accumulate across all transformed mappings
-+
+     */
-+
+    public void testMappedReduceInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.reduce(1L, (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()),
-+
+                               (Long x, Long y) -> Long.valueOf(x.longValue() + y.longValue()));
-+
+        assertEquals((long)r, (long)3 * SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceKeysToLongSequentially accumulates mapped keys
-+
+     */
-+
+    public void testReduceKeysToLongSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        long lr = m.reduceKeysToLong(Long.MAX_VALUE, (Long x) -> x.longValue(), 0L, Long::sum);
-+
+        assertEquals(lr, (long)SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceKeysToIntSequentially accumulates mapped keys
-+
+     */
-+
+    public void testReduceKeysToIntSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        int ir = m.reduceKeysToInt(Long.MAX_VALUE, (Long x) -> x.intValue(), 0, Integer::sum);
-+
+        assertEquals(ir, SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceKeysToDoubleSequentially accumulates mapped keys
-+
+     */
-+
+    public void testReduceKeysToDoubleSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        double dr = m.reduceKeysToDouble(Long.MAX_VALUE, (Long x) -> x.doubleValue(), 0.0, Double::sum);
-+
+        assertEquals(dr, (double)SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceValuesToLongSequentially accumulates mapped values
-+
+     */
-+
+    public void testReduceValuesToLongSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        long lr = m.reduceValuesToLong(Long.MAX_VALUE, (Long x) -> x.longValue(), 0L, Long::sum);
-+
+        assertEquals(lr, (long)SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * reduceValuesToIntSequentially accumulates mapped values
-+
+     */
-+
+    public void testReduceValuesToIntSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        int ir = m.reduceValuesToInt(Long.MAX_VALUE, (Long x) -> x.intValue(), 0, Integer::sum);
-+
+        assertEquals(ir, SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * reduceValuesToDoubleSequentially accumulates mapped values
-+
+     */
-+
+    public void testReduceValuesToDoubleSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        double dr = m.reduceValuesToDouble(Long.MAX_VALUE, (Long x) -> x.doubleValue(), 0.0, Double::sum);
-+
+        assertEquals(dr, (double)SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * reduceKeysToLongInParallel accumulates mapped keys
-+
+     */
-+
+    public void testReduceKeysToLongInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        long lr = m.reduceKeysToLong(1L, (Long x) -> x.longValue(), 0L, Long::sum);
-+
+        assertEquals(lr, (long)SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceKeysToIntInParallel accumulates mapped keys
-+
+     */
-+
+    public void testReduceKeysToIntInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        int ir = m.reduceKeysToInt(1L, (Long x) -> x.intValue(), 0, Integer::sum);
-+
+        assertEquals(ir, SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceKeysToDoubleInParallel accumulates mapped values
-+
+     */
-+
+    public void testReduceKeysToDoubleInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        double dr = m.reduceKeysToDouble(1L, (Long x) -> x.doubleValue(), 0.0, Double::sum);
-+
+        assertEquals(dr, (double)SIZE * (SIZE - 1) / 2);
-+
+    }
-+
-+
+    /**
-+
+     * reduceValuesToLongInParallel accumulates mapped values
-+
+     */
-+
+    public void testReduceValuesToLongInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        long lr = m.reduceValuesToLong(1L, (Long x) -> x.longValue(), 0L, Long::sum);
-+
+        assertEquals(lr, (long)SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * reduceValuesToIntInParallel accumulates mapped values
-+
+     */
-+
+    public void testReduceValuesToIntInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        int ir = m.reduceValuesToInt(1L, (Long x) -> x.intValue(), 0, Integer::sum);
-+
+        assertEquals(ir, SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * reduceValuesToDoubleInParallel accumulates mapped values
-+
+     */
-+
+    public void testReduceValuesToDoubleInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        double dr = m.reduceValuesToDouble(1L, (Long x) -> x.doubleValue(), 0.0, Double::sum);
-+
+        assertEquals(dr, (double)SIZE * (SIZE - 1));
-+
+    }
-+
-+
+    /**
-+
+     * searchKeysSequentially returns a non-null result of search
-+
+     * function, or null if none
-+
+     */
-+
+    public void testSearchKeysSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.searchKeys(Long.MAX_VALUE, (Long x) -> x.longValue() == (long)(SIZE/2) ? x : null);
-+
+        assertEquals((long)r, (long)(SIZE/2));
-+
+        r = m.searchKeys(Long.MAX_VALUE, (Long x) -> x.longValue() < 0L ? x : null);
-+
+        assertNull(r);
-+
+    }
-+
-+
+    /**
-+
+     * searchValuesSequentially returns a non-null result of search
-+
+     * function, or null if none
-+
+     */
-+
+    public void testSearchValuesSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.searchValues(Long.MAX_VALUE,
-+
+            (Long x) -> (x.longValue() == (long)(SIZE/2)) ? x : null);
-+
+        assertEquals((long)r, (long)(SIZE/2));
-+
+        r = m.searchValues(Long.MAX_VALUE,
-+
+            (Long x) -> (x.longValue() < 0L) ? x : null);
-+
+        assertNull(r);
-+
+    }
-+
-+
+    /**
-+
+     * searchSequentially returns a non-null result of search
-+
+     * function, or null if none
-+
+     */
-+
+    public void testSearchSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.search(Long.MAX_VALUE, (Long x, Long y) -> x.longValue() == (long)(SIZE/2) ? x : null);
-+
+        assertEquals((long)r, (long)(SIZE/2));
-+
+        r = m.search(Long.MAX_VALUE, (Long x, Long y) -> x.longValue() < 0L ? x : null);
-+
+        assertNull(r);
-+
+    }
-+
-+
+    /**
-+
+     * searchEntriesSequentially returns a non-null result of search
-+
+     * function, or null if none
-+
+     */
-+
+    public void testSearchEntriesSequentially() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.searchEntries(Long.MAX_VALUE, (Map.Entry<Long,Long> e) -> e.getKey().longValue() == (long)(SIZE/2) ? e.getKey() : null);
-+
+        assertEquals((long)r, (long)(SIZE/2));
-+
+        r = m.searchEntries(Long.MAX_VALUE, (Map.Entry<Long,Long> e) -> e.getKey().longValue() < 0L ? e.getKey() : null);
-+
+        assertNull(r);
-+
+    }
-+
-+
+    /**
-+
+     * searchKeysInParallel returns a non-null result of search
-+
+     * function, or null if none
-+
+     */
-+
+    public void testSearchKeysInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.searchKeys(1L, (Long x) -> x.longValue() == (long)(SIZE/2) ? x : null);
-+
+        assertEquals((long)r, (long)(SIZE/2));
-+
+        r = m.searchKeys(1L, (Long x) -> x.longValue() < 0L ? x : null);
-+
+        assertNull(r);
-+
+    }
-+
-+
+    /**
-+
+     * searchValuesInParallel returns a non-null result of search
-+
+     * function, or null if none
-+
+     */
-+
+    public void testSearchValuesInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.searchValues(1L, (Long x) -> x.longValue() == (long)(SIZE/2) ? x : null);
-+
+        assertEquals((long)r, (long)(SIZE/2));
-+
+        r = m.searchValues(1L, (Long x) -> x.longValue() < 0L ? x : null);
-+
+        assertNull(r);
-+
+    }
-+
-+
+    /**
-+
+     * searchInParallel returns a non-null result of search function,
-+
+     * or null if none
-+
+     */
-+
+    public void testSearchInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.search(1L, (Long x, Long y) -> x.longValue() == (long)(SIZE/2) ? x : null);
-+
+        assertEquals((long)r, (long)(SIZE/2));
-+
+        r = m.search(1L, (Long x, Long y) -> x.longValue() < 0L ? x : null);
-+
+        assertNull(r);
-+
+    }
-+
-+
+    /**
-+
+     * searchEntriesInParallel returns a non-null result of search
-+
+     * function, or null if none
-+
+     */
-+
+    public void testSearchEntriesInParallel() {
-+
+        ConcurrentHashMap<Long, Long> m = longMap();
-+
+        Long r;
-+
+        r = m.searchEntries(1L, (Map.Entry<Long,Long> e) -> e.getKey().longValue() == (long)(SIZE/2) ? e.getKey() : null);
-+
+        assertEquals((long)r, (long)(SIZE/2));
-+
+        r = m.searchEntries(1L, (Map.Entry<Long,Long> e) -> e.getKey().longValue() < 0L ? e.getKey() : null);
-+
+        assertNull(r);
-+
+    }
-+
-+
+    /**
-+
+     * Tests performance of computeIfAbsent when the element is present.
-+
+     * See JDK-8161372
-+
+     * ant -Djsr166.tckTestClass=ConcurrentHashMapTest -Djsr166.methodFilter=testcomputeIfAbsent_performance -Djsr166.expensiveTests=true tck
-+
+     */
-+
+    public void testcomputeIfAbsent_performance() {
-+
+        final int mapSize = 20;
-+
+        final int iterations = expensiveTests ? (1 << 23) : mapSize * 2;
-+
+        final int threads = expensiveTests ? 10 : 2;
-+
+        final ConcurrentHashMap<Integer, Integer> map = new ConcurrentHashMap<>();
-+
+        for (int i = 0; i < mapSize; i++)
-+
+            map.put(i, i);
-+
+        final ExecutorService pool = Executors.newFixedThreadPool(2);
-+
+        try (PoolCleaner cleaner = cleaner(pool)) {
-+
+            Runnable r = new CheckedRunnable() {
-+
+                public void realRun() {
-+
+                    int result = 0;
-+
+                    for (int i = 0; i < iterations; i++)
-+
+                        result += map.computeIfAbsent(i % mapSize, k -> k + k);
-+
+                    if (result == -42) throw new Error();
-+
+                }};
-+
+            for (int i = 0; i < threads; i++)
-+
+                pool.execute(r);
-+
+        }
-+
+    }

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+Removed lines
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Comparing jsr166/src/test/tck/ConcurrentHashMap8Test.java (file contents): Revision 1.1 by dl, Thu Mar 21 19:06:54 2013 UTC vs. Revision 1.36 by jsr166, Sun Jan 7 23:31:01 2018 UTC

Diff Legend

Comparing jsr166/src/test/tck/ConcurrentHashMap8Test.java (file contents):
Revision 1.1 by dl, Thu Mar 21 19:06:54 2013 UTC vs.
Revision 1.36 by jsr166, Sun Jan 7 23:31:01 2018 UTC