--- a/jdk/test/java/util/stream/test/org/openjdk/tests/java/util/stream/SpliteratorTraversingAndSplittingTest.java Tue Jun 04 10:04:28 2013 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1411 +0,0 @@
-/*
- * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-package org.openjdk.tests.java.util.stream;
-
-/**
- * @test
- * @summary Spliterator traversing and splitting tests
- * @run testng SpliteratorTraversingAndSplittingTest
- */
-
-import org.testng.annotations.DataProvider;
-import org.testng.annotations.Test;
-
-import java.util.AbstractCollection;
-import java.util.AbstractList;
-import java.util.AbstractSet;
-import java.util.ArrayDeque;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.Deque;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.IdentityHashMap;
-import java.util.Iterator;
-import java.util.LinkedHashMap;
-import java.util.LinkedHashSet;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-import java.util.PriorityQueue;
-import java.util.Set;
-import java.util.SortedSet;
-import java.util.Spliterator;
-import java.util.Spliterators;
-import java.util.Stack;
-import java.util.TreeMap;
-import java.util.TreeSet;
-import java.util.Vector;
-import java.util.WeakHashMap;
-import java.util.concurrent.ArrayBlockingQueue;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentLinkedQueue;
-import java.util.concurrent.ConcurrentSkipListMap;
-import java.util.concurrent.ConcurrentSkipListSet;
-import java.util.concurrent.CopyOnWriteArrayList;
-import java.util.concurrent.CopyOnWriteArraySet;
-import java.util.concurrent.LinkedBlockingDeque;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.LinkedTransferQueue;
-import java.util.concurrent.PriorityBlockingQueue;
-import java.util.function.Consumer;
-import java.util.function.DoubleConsumer;
-import java.util.function.Function;
-import java.util.function.IntConsumer;
-import java.util.function.LongConsumer;
-import java.util.function.Supplier;
-import java.util.function.UnaryOperator;
-
-import static org.testng.Assert.*;
-import static org.testng.Assert.assertEquals;
-
-@Test(groups = { "serialization-hostile" })
-public class SpliteratorTraversingAndSplittingTest {
-
- private static List<Integer> SIZES = Arrays.asList(0, 1, 10, 100, 1000);
-
- private static class SpliteratorDataBuilder<T> {
- List<Object[]> data;
-
- List<T> exp;
-
- Map<T, T> mExp;
-
- SpliteratorDataBuilder(List<Object[]> data, List<T> exp) {
- this.data = data;
- this.exp = exp;
- this.mExp = createMap(exp);
- }
-
- Map<T, T> createMap(List<T> l) {
- Map<T, T> m = new LinkedHashMap<>();
- for (T t : l) {
- m.put(t, t);
- }
- return m;
- }
-
- void add(String description, Collection<?> expected, Supplier<Spliterator<?>> s) {
- description = joiner(description).toString();
- data.add(new Object[]{description, expected, s});
- }
-
- void add(String description, Supplier<Spliterator<?>> s) {
- add(description, exp, s);
- }
-
- void addCollection(Function<Collection<T>, ? extends Collection<T>> c) {
- add("new " + c.apply(Collections.<T>emptyList()).getClass().getName() + ".spliterator()",
- () -> c.apply(exp).spliterator());
- }
-
- void addList(Function<Collection<T>, ? extends List<T>> l) {
- // @@@ If collection is instance of List then add sub-list tests
- addCollection(l);
- }
-
- void addMap(Function<Map<T, T>, ? extends Map<T, T>> m) {
- String description = "new " + m.apply(Collections.<T, T>emptyMap()).getClass().getName();
- add(description + ".keySet().spliterator()", () -> m.apply(mExp).keySet().spliterator());
- add(description + ".values().spliterator()", () -> m.apply(mExp).values().spliterator());
- add(description + ".entrySet().spliterator()", mExp.entrySet(), () -> m.apply(mExp).entrySet().spliterator());
- }
-
- StringBuilder joiner(String description) {
- return new StringBuilder(description).
- append(" {").
- append("size=").append(exp.size()).
- append("}");
- }
- }
-
- static Object[][] spliteratorDataProvider;
-
- @DataProvider(name = "Spliterator<Integer>")
- public static Object[][] spliteratorDataProvider() {
- if (spliteratorDataProvider != null) {
- return spliteratorDataProvider;
- }
-
- List<Object[]> data = new ArrayList<>();
- for (int size : SIZES) {
- List<Integer> exp = listIntRange(size);
- SpliteratorDataBuilder<Integer> db = new SpliteratorDataBuilder<>(data, exp);
-
- // Direct spliterator methods
-
- db.add("Spliterators.spliterator(Collection, ...)",
- () -> Spliterators.spliterator(exp, 0));
-
- db.add("Spliterators.spliterator(Iterator, ...)",
- () -> Spliterators.spliterator(exp.iterator(), exp.size(), 0));
-
- db.add("Spliterators.spliteratorUnknownSize(Iterator, ...)",
- () -> Spliterators.spliteratorUnknownSize(exp.iterator(), 0));
-
- db.add("Spliterators.spliterator(Spliterators.iteratorFromSpliterator(Spliterator ), ...)",
- () -> Spliterators.spliterator(Spliterators.iteratorFromSpliterator(exp.spliterator()), exp.size(), 0));
-
- db.add("Spliterators.spliterator(T[], ...)",
- () -> Spliterators.spliterator(exp.toArray(new Integer[0]), 0));
-
- db.add("Arrays.spliterator(T[], ...)",
- () -> Arrays.spliterator(exp.toArray(new Integer[0])));
-
- class SpliteratorFromIterator extends Spliterators.AbstractSpliterator<Integer> {
- Iterator<Integer> it;
-
- SpliteratorFromIterator(Iterator<Integer> it, long est) {
- super(est, Spliterator.SIZED);
- this.it = it;
- }
-
- @Override
- public boolean tryAdvance(Consumer<? super Integer> action) {
- if (action == null)
- throw new NullPointerException();
- if (it.hasNext()) {
- action.accept(it.next());
- return true;
- }
- else {
- return false;
- }
- }
- }
- db.add("new Spliterators.AbstractSpliterator()",
- () -> new SpliteratorFromIterator(exp.iterator(), exp.size()));
-
- // Collections
-
- // default method implementations
-
- class AbstractCollectionImpl extends AbstractCollection<Integer> {
- Collection<Integer> c;
-
- AbstractCollectionImpl(Collection<Integer> c) {
- this.c = c;
- }
-
- @Override
- public Iterator<Integer> iterator() {
- return c.iterator();
- }
-
- @Override
- public int size() {
- return c.size();
- }
- }
- db.addCollection(
- c -> new AbstractCollectionImpl(c));
-
- class AbstractListImpl extends AbstractList<Integer> {
- List<Integer> l;
-
- AbstractListImpl(Collection<Integer> c) {
- this.l = new ArrayList<>(c);
- }
-
- @Override
- public Integer get(int index) {
- return l.get(index);
- }
-
- @Override
- public int size() {
- return l.size();
- }
- }
- db.addCollection(
- c -> new AbstractListImpl(c));
-
- class AbstractSetImpl extends AbstractSet<Integer> {
- Set<Integer> s;
-
- AbstractSetImpl(Collection<Integer> c) {
- this.s = new HashSet<>(c);
- }
-
- @Override
- public Iterator<Integer> iterator() {
- return s.iterator();
- }
-
- @Override
- public int size() {
- return s.size();
- }
- }
- db.addCollection(
- c -> new AbstractSetImpl(c));
-
- class AbstractSortedSetImpl extends AbstractSet<Integer> implements SortedSet<Integer> {
- SortedSet<Integer> s;
-
- AbstractSortedSetImpl(Collection<Integer> c) {
- this.s = new TreeSet<>(c);
- }
-
- @Override
- public Iterator<Integer> iterator() {
- return s.iterator();
- }
-
- @Override
- public int size() {
- return s.size();
- }
-
- @Override
- public Comparator<? super Integer> comparator() {
- return s.comparator();
- }
-
- @Override
- public SortedSet<Integer> subSet(Integer fromElement, Integer toElement) {
- return s.subSet(fromElement, toElement);
- }
-
- @Override
- public SortedSet<Integer> headSet(Integer toElement) {
- return s.headSet(toElement);
- }
-
- @Override
- public SortedSet<Integer> tailSet(Integer fromElement) {
- return s.tailSet(fromElement);
- }
-
- @Override
- public Integer first() {
- return s.first();
- }
-
- @Override
- public Integer last() {
- return s.last();
- }
-
- @Override
- public Spliterator<Integer> spliterator() {
- return SortedSet.super.spliterator();
- }
- }
- db.addCollection(
- c -> new AbstractSortedSetImpl(c));
-
- //
-
- db.add("Arrays.asList().spliterator()",
- () -> Spliterators.spliterator(Arrays.asList(exp.toArray(new Integer[0])), 0));
-
- db.addList(ArrayList::new);
-
- db.addList(LinkedList::new);
-
- db.addList(Vector::new);
-
-
- db.addCollection(HashSet::new);
-
- db.addCollection(LinkedHashSet::new);
-
- db.addCollection(TreeSet::new);
-
-
- db.addCollection(c -> { Stack<Integer> s = new Stack<>(); s.addAll(c); return s;});
-
- db.addCollection(PriorityQueue::new);
-
- db.addCollection(ArrayDeque::new);
-
-
- db.addCollection(ConcurrentSkipListSet::new);
-
- if (size > 0) {
- db.addCollection(c -> {
- ArrayBlockingQueue<Integer> abq = new ArrayBlockingQueue<>(size);
- abq.addAll(c);
- return abq;
- });
- }
-
- db.addCollection(PriorityBlockingQueue::new);
-
- db.addCollection(LinkedBlockingQueue::new);
-
- db.addCollection(LinkedTransferQueue::new);
-
- db.addCollection(ConcurrentLinkedQueue::new);
-
- db.addCollection(LinkedBlockingDeque::new);
-
- db.addCollection(CopyOnWriteArrayList::new);
-
- db.addCollection(CopyOnWriteArraySet::new);
-
- if (size == 1) {
- db.addCollection(c -> Collections.singleton(exp.get(0)));
- db.addCollection(c -> Collections.singletonList(exp.get(0)));
- }
-
- // Collections.synchronized/unmodifiable/checked wrappers
- db.addCollection(Collections::unmodifiableCollection);
- db.addCollection(c -> Collections.unmodifiableSet(new HashSet<>(c)));
- db.addCollection(c -> Collections.unmodifiableSortedSet(new TreeSet<>(c)));
- db.addList(c -> Collections.unmodifiableList(new ArrayList<>(c)));
- db.addMap(Collections::unmodifiableMap);
- db.addMap(m -> Collections.unmodifiableSortedMap(new TreeMap<>(m)));
-
- db.addCollection(Collections::synchronizedCollection);
- db.addCollection(c -> Collections.synchronizedSet(new HashSet<>(c)));
- db.addCollection(c -> Collections.synchronizedSortedSet(new TreeSet<>(c)));
- db.addList(c -> Collections.synchronizedList(new ArrayList<>(c)));
- db.addMap(Collections::synchronizedMap);
- db.addMap(m -> Collections.synchronizedSortedMap(new TreeMap<>(m)));
-
- db.addCollection(c -> Collections.checkedCollection(c, Integer.class));
- db.addCollection(c -> Collections.checkedQueue(new ArrayDeque<>(c), Integer.class));
- db.addCollection(c -> Collections.checkedSet(new HashSet<>(c), Integer.class));
- db.addCollection(c -> Collections.checkedSortedSet(new TreeSet<>(c), Integer.class));
- db.addList(c -> Collections.checkedList(new ArrayList<>(c), Integer.class));
- db.addMap(c -> Collections.checkedMap(c, Integer.class, Integer.class));
- db.addMap(m -> Collections.checkedSortedMap(new TreeMap<>(m), Integer.class, Integer.class));
-
- // Maps
-
- db.addMap(HashMap::new);
-
- db.addMap(LinkedHashMap::new);
-
- db.addMap(IdentityHashMap::new);
-
- db.addMap(WeakHashMap::new);
-
- // @@@ Descending maps etc
- db.addMap(TreeMap::new);
-
- db.addMap(ConcurrentHashMap::new);
-
- db.addMap(ConcurrentSkipListMap::new);
- }
-
- return spliteratorDataProvider = data.toArray(new Object[0][]);
- }
-
- private static List<Integer> listIntRange(int upTo) {
- List<Integer> exp = new ArrayList<>();
- for (int i = 0; i < upTo; i++)
- exp.add(i);
- return Collections.unmodifiableList(exp);
- }
-
- @Test(dataProvider = "Spliterator<Integer>")
- @SuppressWarnings({"unchecked", "rawtypes"})
- public void testNullPointerException(String description, Collection exp, Supplier<Spliterator> s) {
- executeAndCatch(NullPointerException.class, () -> s.get().forEachRemaining(null));
- executeAndCatch(NullPointerException.class, () -> s.get().tryAdvance(null));
- }
-
- @Test(dataProvider = "Spliterator<Integer>")
- @SuppressWarnings({"unchecked", "rawtypes"})
- public void testForEach(String description, Collection exp, Supplier<Spliterator> s) {
- testForEach(exp, s, (Consumer<Object> b) -> b);
- }
-
- @Test(dataProvider = "Spliterator<Integer>")
- @SuppressWarnings({"unchecked", "rawtypes"})
- public void testTryAdvance(String description, Collection exp, Supplier<Spliterator> s) {
- testTryAdvance(exp, s, (Consumer<Object> b) -> b);
- }
-
- @Test(dataProvider = "Spliterator<Integer>")
- @SuppressWarnings({"unchecked", "rawtypes"})
- public void testMixedTryAdvanceForEach(String description, Collection exp, Supplier<Spliterator> s) {
- testMixedTryAdvanceForEach(exp, s, (Consumer<Object> b) -> b);
- }
-
- @Test(dataProvider = "Spliterator<Integer>")
- @SuppressWarnings({"unchecked", "rawtypes"})
- public void testMixedTraverseAndSplit(String description, Collection exp, Supplier<Spliterator> s) {
- testMixedTraverseAndSplit(exp, s, (Consumer<Object> b) -> b);
- }
-
- @Test(dataProvider = "Spliterator<Integer>")
- @SuppressWarnings({"unchecked", "rawtypes"})
- public void testSplitAfterFullTraversal(String description, Collection exp, Supplier<Spliterator> s) {
- testSplitAfterFullTraversal(s, (Consumer<Object> b) -> b);
- }
-
- @Test(dataProvider = "Spliterator<Integer>")
- @SuppressWarnings({"unchecked", "rawtypes"})
- public void testSplitOnce(String description, Collection exp, Supplier<Spliterator> s) {
- testSplitOnce(exp, s, (Consumer<Object> b) -> b);
- }
-
- @Test(dataProvider = "Spliterator<Integer>")
- @SuppressWarnings({"unchecked", "rawtypes"})
- public void testSplitSixDeep(String description, Collection exp, Supplier<Spliterator> s) {
- testSplitSixDeep(exp, s, (Consumer<Object> b) -> b);
- }
-
- @Test(dataProvider = "Spliterator<Integer>")
- @SuppressWarnings({"unchecked", "rawtypes"})
- public void testSplitUntilNull(String description, Collection exp, Supplier<Spliterator> s) {
- testSplitUntilNull(exp, s, (Consumer<Object> b) -> b);
- }
-
- //
-
- private static class SpliteratorOfIntDataBuilder {
- List<Object[]> data;
-
- List<Integer> exp;
-
- SpliteratorOfIntDataBuilder(List<Object[]> data, List<Integer> exp) {
- this.data = data;
- this.exp = exp;
- }
-
- void add(String description, List<Integer> expected, Supplier<Spliterator.OfInt> s) {
- description = joiner(description).toString();
- data.add(new Object[]{description, expected, s});
- }
-
- void add(String description, Supplier<Spliterator.OfInt> s) {
- add(description, exp, s);
- }
-
- StringBuilder joiner(String description) {
- return new StringBuilder(description).
- append(" {").
- append("size=").append(exp.size()).
- append("}");
- }
- }
-
- static Object[][] spliteratorOfIntDataProvider;
-
- @DataProvider(name = "Spliterator.OfInt")
- public static Object[][] spliteratorOfIntDataProvider() {
- if (spliteratorOfIntDataProvider != null) {
- return spliteratorOfIntDataProvider;
- }
-
- List<Object[]> data = new ArrayList<>();
- for (int size : SIZES) {
- int exp[] = arrayIntRange(size);
- SpliteratorOfIntDataBuilder db = new SpliteratorOfIntDataBuilder(data, listIntRange(size));
-
- db.add("Spliterators.spliterator(int[], ...)",
- () -> Spliterators.spliterator(exp, 0));
-
- db.add("Arrays.spliterator(int[], ...)",
- () -> Arrays.spliterator(exp));
-
- db.add("Spliterators.spliterator(PrimitiveIterator.OfInt, ...)",
- () -> Spliterators.spliterator(Spliterators.iteratorFromSpliterator(Arrays.spliterator(exp)), exp.length, 0));
-
- db.add("Spliterators.spliteratorUnknownSize(PrimitiveIterator.OfInt, ...)",
- () -> Spliterators.spliteratorUnknownSize(Spliterators.iteratorFromSpliterator(Arrays.spliterator(exp)), 0));
-
- class IntSpliteratorFromArray extends Spliterators.AbstractIntSpliterator {
- int[] a;
- int index = 0;
-
- IntSpliteratorFromArray(int[] a) {
- super(a.length, Spliterator.SIZED);
- this.a = a;
- }
-
- @Override
- public boolean tryAdvance(IntConsumer action) {
- if (action == null)
- throw new NullPointerException();
- if (index < a.length) {
- action.accept(a[index++]);
- return true;
- }
- else {
- return false;
- }
- }
- }
- db.add("new Spliterators.AbstractIntAdvancingSpliterator()",
- () -> new IntSpliteratorFromArray(exp));
- }
-
- return spliteratorOfIntDataProvider = data.toArray(new Object[0][]);
- }
-
- private static int[] arrayIntRange(int upTo) {
- int[] exp = new int[upTo];
- for (int i = 0; i < upTo; i++)
- exp[i] = i;
- return exp;
- }
-
- private static UnaryOperator<Consumer<Integer>> intBoxingConsumer() {
- class BoxingAdapter implements Consumer<Integer>, IntConsumer {
- private final Consumer<Integer> b;
-
- BoxingAdapter(Consumer<Integer> b) {
- this.b = b;
- }
-
- @Override
- public void accept(Integer value) {
- throw new IllegalStateException();
- }
-
- @Override
- public void accept(int value) {
- b.accept(value);
- }
- }
-
- return b -> new BoxingAdapter(b);
- }
-
- @Test(dataProvider = "Spliterator.OfInt")
- public void testIntNullPointerException(String description, Collection<Integer> exp, Supplier<Spliterator.OfInt> s) {
- executeAndCatch(NullPointerException.class, () -> s.get().forEachRemaining((IntConsumer) null));
- executeAndCatch(NullPointerException.class, () -> s.get().tryAdvance((IntConsumer) null));
- }
-
- @Test(dataProvider = "Spliterator.OfInt")
- public void testIntForEach(String description, Collection<Integer> exp, Supplier<Spliterator.OfInt> s) {
- testForEach(exp, s, intBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfInt")
- public void testIntTryAdvance(String description, Collection<Integer> exp, Supplier<Spliterator.OfInt> s) {
- testTryAdvance(exp, s, intBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfInt")
- public void testIntMixedTryAdvanceForEach(String description, Collection<Integer> exp, Supplier<Spliterator.OfInt> s) {
- testMixedTryAdvanceForEach(exp, s, intBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfInt")
- public void testIntMixedTraverseAndSplit(String description, Collection<Integer> exp, Supplier<Spliterator.OfInt> s) {
- testMixedTraverseAndSplit(exp, s, intBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfInt")
- public void testIntSplitAfterFullTraversal(String description, Collection<Integer> exp, Supplier<Spliterator.OfInt> s) {
- testSplitAfterFullTraversal(s, intBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfInt")
- public void testIntSplitOnce(String description, Collection<Integer> exp, Supplier<Spliterator.OfInt> s) {
- testSplitOnce(exp, s, intBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfInt")
- public void testIntSplitSixDeep(String description, Collection<Integer> exp, Supplier<Spliterator.OfInt> s) {
- testSplitSixDeep(exp, s, intBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfInt")
- public void testIntSplitUntilNull(String description, Collection<Integer> exp, Supplier<Spliterator.OfInt> s) {
- testSplitUntilNull(exp, s, intBoxingConsumer());
- }
-
- //
-
- private static class SpliteratorOfLongDataBuilder {
- List<Object[]> data;
-
- List<Long> exp;
-
- SpliteratorOfLongDataBuilder(List<Object[]> data, List<Long> exp) {
- this.data = data;
- this.exp = exp;
- }
-
- void add(String description, List<Long> expected, Supplier<Spliterator.OfLong> s) {
- description = joiner(description).toString();
- data.add(new Object[]{description, expected, s});
- }
-
- void add(String description, Supplier<Spliterator.OfLong> s) {
- add(description, exp, s);
- }
-
- StringBuilder joiner(String description) {
- return new StringBuilder(description).
- append(" {").
- append("size=").append(exp.size()).
- append("}");
- }
- }
-
- static Object[][] spliteratorOfLongDataProvider;
-
- @DataProvider(name = "Spliterator.OfLong")
- public static Object[][] spliteratorOfLongDataProvider() {
- if (spliteratorOfLongDataProvider != null) {
- return spliteratorOfLongDataProvider;
- }
-
- List<Object[]> data = new ArrayList<>();
- for (int size : SIZES) {
- long exp[] = arrayLongRange(size);
- SpliteratorOfLongDataBuilder db = new SpliteratorOfLongDataBuilder(data, listLongRange(size));
-
- db.add("Spliterators.spliterator(long[], ...)",
- () -> Spliterators.spliterator(exp, 0));
-
- db.add("Arrays.spliterator(long[], ...)",
- () -> Arrays.spliterator(exp));
-
- db.add("Spliterators.spliterator(PrimitiveIterator.OfLong, ...)",
- () -> Spliterators.spliterator(Spliterators.iteratorFromSpliterator(Arrays.spliterator(exp)), exp.length, 0));
-
- db.add("Spliterators.spliteratorUnknownSize(PrimitiveIterator.OfLong, ...)",
- () -> Spliterators.spliteratorUnknownSize(Spliterators.iteratorFromSpliterator(Arrays.spliterator(exp)), 0));
-
- class LongSpliteratorFromArray extends Spliterators.AbstractLongSpliterator {
- long[] a;
- int index = 0;
-
- LongSpliteratorFromArray(long[] a) {
- super(a.length, Spliterator.SIZED);
- this.a = a;
- }
-
- @Override
- public boolean tryAdvance(LongConsumer action) {
- if (action == null)
- throw new NullPointerException();
- if (index < a.length) {
- action.accept(a[index++]);
- return true;
- }
- else {
- return false;
- }
- }
- }
- db.add("new Spliterators.AbstractLongAdvancingSpliterator()",
- () -> new LongSpliteratorFromArray(exp));
- }
-
- return spliteratorOfLongDataProvider = data.toArray(new Object[0][]);
- }
-
- private static List<Long> listLongRange(int upTo) {
- List<Long> exp = new ArrayList<>();
- for (long i = 0; i < upTo; i++)
- exp.add(i);
- return Collections.unmodifiableList(exp);
- }
-
- private static long[] arrayLongRange(int upTo) {
- long[] exp = new long[upTo];
- for (int i = 0; i < upTo; i++)
- exp[i] = i;
- return exp;
- }
-
- private static UnaryOperator<Consumer<Long>> longBoxingConsumer() {
- class BoxingAdapter implements Consumer<Long>, LongConsumer {
- private final Consumer<Long> b;
-
- BoxingAdapter(Consumer<Long> b) {
- this.b = b;
- }
-
- @Override
- public void accept(Long value) {
- throw new IllegalStateException();
- }
-
- @Override
- public void accept(long value) {
- b.accept(value);
- }
- }
-
- return b -> new BoxingAdapter(b);
- }
-
- @Test(dataProvider = "Spliterator.OfLong")
- public void testLongNullPointerException(String description, Collection<Long> exp, Supplier<Spliterator.OfLong> s) {
- executeAndCatch(NullPointerException.class, () -> s.get().forEachRemaining((LongConsumer) null));
- executeAndCatch(NullPointerException.class, () -> s.get().tryAdvance((LongConsumer) null));
- }
-
- @Test(dataProvider = "Spliterator.OfLong")
- public void testLongForEach(String description, Collection<Long> exp, Supplier<Spliterator.OfLong> s) {
- testForEach(exp, s, longBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfLong")
- public void testLongTryAdvance(String description, Collection<Long> exp, Supplier<Spliterator.OfLong> s) {
- testTryAdvance(exp, s, longBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfLong")
- public void testLongMixedTryAdvanceForEach(String description, Collection<Long> exp, Supplier<Spliterator.OfLong> s) {
- testMixedTryAdvanceForEach(exp, s, longBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfLong")
- public void testLongMixedTraverseAndSplit(String description, Collection<Long> exp, Supplier<Spliterator.OfLong> s) {
- testMixedTraverseAndSplit(exp, s, longBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfLong")
- public void testLongSplitAfterFullTraversal(String description, Collection<Long> exp, Supplier<Spliterator.OfLong> s) {
- testSplitAfterFullTraversal(s, longBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfLong")
- public void testLongSplitOnce(String description, Collection<Long> exp, Supplier<Spliterator.OfLong> s) {
- testSplitOnce(exp, s, longBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfLong")
- public void testLongSplitSixDeep(String description, Collection<Long> exp, Supplier<Spliterator.OfLong> s) {
- testSplitSixDeep(exp, s, longBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfLong")
- public void testLongSplitUntilNull(String description, Collection<Long> exp, Supplier<Spliterator.OfLong> s) {
- testSplitUntilNull(exp, s, longBoxingConsumer());
- }
-
- //
-
- private static class SpliteratorOfDoubleDataBuilder {
- List<Object[]> data;
-
- List<Double> exp;
-
- SpliteratorOfDoubleDataBuilder(List<Object[]> data, List<Double> exp) {
- this.data = data;
- this.exp = exp;
- }
-
- void add(String description, List<Double> expected, Supplier<Spliterator.OfDouble> s) {
- description = joiner(description).toString();
- data.add(new Object[]{description, expected, s});
- }
-
- void add(String description, Supplier<Spliterator.OfDouble> s) {
- add(description, exp, s);
- }
-
- StringBuilder joiner(String description) {
- return new StringBuilder(description).
- append(" {").
- append("size=").append(exp.size()).
- append("}");
- }
- }
-
- static Object[][] spliteratorOfDoubleDataProvider;
-
- @DataProvider(name = "Spliterator.OfDouble")
- public static Object[][] spliteratorOfDoubleDataProvider() {
- if (spliteratorOfDoubleDataProvider != null) {
- return spliteratorOfDoubleDataProvider;
- }
-
- List<Object[]> data = new ArrayList<>();
- for (int size : SIZES) {
- double exp[] = arrayDoubleRange(size);
- SpliteratorOfDoubleDataBuilder db = new SpliteratorOfDoubleDataBuilder(data, listDoubleRange(size));
-
- db.add("Spliterators.spliterator(double[], ...)",
- () -> Spliterators.spliterator(exp, 0));
-
- db.add("Arrays.spliterator(double[], ...)",
- () -> Arrays.spliterator(exp));
-
- db.add("Spliterators.spliterator(PrimitiveIterator.OfDouble, ...)",
- () -> Spliterators.spliterator(Spliterators.iteratorFromSpliterator(Arrays.spliterator(exp)), exp.length, 0));
-
- db.add("Spliterators.spliteratorUnknownSize(PrimitiveIterator.OfDouble, ...)",
- () -> Spliterators.spliteratorUnknownSize(Spliterators.iteratorFromSpliterator(Arrays.spliterator(exp)), 0));
-
- class DoubleSpliteratorFromArray extends Spliterators.AbstractDoubleSpliterator {
- double[] a;
- int index = 0;
-
- DoubleSpliteratorFromArray(double[] a) {
- super(a.length, Spliterator.SIZED);
- this.a = a;
- }
-
- @Override
- public boolean tryAdvance(DoubleConsumer action) {
- if (action == null)
- throw new NullPointerException();
- if (index < a.length) {
- action.accept(a[index++]);
- return true;
- }
- else {
- return false;
- }
- }
- }
- db.add("new Spliterators.AbstractDoubleAdvancingSpliterator()",
- () -> new DoubleSpliteratorFromArray(exp));
- }
-
- return spliteratorOfDoubleDataProvider = data.toArray(new Object[0][]);
- }
-
- private static List<Double> listDoubleRange(int upTo) {
- List<Double> exp = new ArrayList<>();
- for (double i = 0; i < upTo; i++)
- exp.add(i);
- return Collections.unmodifiableList(exp);
- }
-
- private static double[] arrayDoubleRange(int upTo) {
- double[] exp = new double[upTo];
- for (int i = 0; i < upTo; i++)
- exp[i] = i;
- return exp;
- }
-
- private static UnaryOperator<Consumer<Double>> doubleBoxingConsumer() {
- class BoxingAdapter implements Consumer<Double>, DoubleConsumer {
- private final Consumer<Double> b;
-
- BoxingAdapter(Consumer<Double> b) {
- this.b = b;
- }
-
- @Override
- public void accept(Double value) {
- throw new IllegalStateException();
- }
-
- @Override
- public void accept(double value) {
- b.accept(value);
- }
- }
-
- return b -> new BoxingAdapter(b);
- }
-
- @Test(dataProvider = "Spliterator.OfDouble")
- public void testDoubleNullPointerException(String description, Collection<Double> exp, Supplier<Spliterator.OfDouble> s) {
- executeAndCatch(NullPointerException.class, () -> s.get().forEachRemaining((DoubleConsumer) null));
- executeAndCatch(NullPointerException.class, () -> s.get().tryAdvance((DoubleConsumer) null));
- }
-
- @Test(dataProvider = "Spliterator.OfDouble")
- public void testDoubleForEach(String description, Collection<Double> exp, Supplier<Spliterator.OfDouble> s) {
- testForEach(exp, s, doubleBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfDouble")
- public void testDoubleTryAdvance(String description, Collection<Double> exp, Supplier<Spliterator.OfDouble> s) {
- testTryAdvance(exp, s, doubleBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfDouble")
- public void testDoubleMixedTryAdvanceForEach(String description, Collection<Double> exp, Supplier<Spliterator.OfDouble> s) {
- testMixedTryAdvanceForEach(exp, s, doubleBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfDouble")
- public void testDoubleMixedTraverseAndSplit(String description, Collection<Double> exp, Supplier<Spliterator.OfDouble> s) {
- testMixedTraverseAndSplit(exp, s, doubleBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfDouble")
- public void testDoubleSplitAfterFullTraversal(String description, Collection<Double> exp, Supplier<Spliterator.OfDouble> s) {
- testSplitAfterFullTraversal(s, doubleBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfDouble")
- public void testDoubleSplitOnce(String description, Collection<Double> exp, Supplier<Spliterator.OfDouble> s) {
- testSplitOnce(exp, s, doubleBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfDouble")
- public void testDoubleSplitSixDeep(String description, Collection<Double> exp, Supplier<Spliterator.OfDouble> s) {
- testSplitSixDeep(exp, s, doubleBoxingConsumer());
- }
-
- @Test(dataProvider = "Spliterator.OfDouble")
- public void testDoubleSplitUntilNull(String description, Collection<Double> exp, Supplier<Spliterator.OfDouble> s) {
- testSplitUntilNull(exp, s, doubleBoxingConsumer());
- }
-
- //
-
- private static <T, S extends Spliterator<T>> void testForEach(
- Collection<T> exp,
- Supplier<S> supplier,
- UnaryOperator<Consumer<T>> boxingAdapter) {
- S spliterator = supplier.get();
- long sizeIfKnown = spliterator.getExactSizeIfKnown();
- boolean isOrdered = spliterator.hasCharacteristics(Spliterator.ORDERED);
-
- ArrayList<T> fromForEach = new ArrayList<>();
- spliterator = supplier.get();
- Consumer<T> addToFromForEach = boxingAdapter.apply(fromForEach::add);
- spliterator.forEachRemaining(addToFromForEach);
-
- // Assert that forEach now produces no elements
- spliterator.forEachRemaining(boxingAdapter.apply(
- e -> fail("Spliterator.forEach produced an element after spliterator exhausted: " + e)));
- // Assert that tryAdvance now produce no elements
- spliterator.tryAdvance(boxingAdapter.apply(
- e -> fail("Spliterator.tryAdvance produced an element after spliterator exhausted: " + e)));
-
- // assert that size, tryAdvance, and forEach are consistent
- if (sizeIfKnown >= 0) {
- assertEquals(sizeIfKnown, exp.size());
- }
- assertEquals(fromForEach.size(), exp.size());
-
- assertContents(fromForEach, exp, isOrdered);
- }
-
- private static <T, S extends Spliterator<T>> void testTryAdvance(
- Collection<T> exp,
- Supplier<S> supplier,
- UnaryOperator<Consumer<T>> boxingAdapter) {
- S spliterator = supplier.get();
- long sizeIfKnown = spliterator.getExactSizeIfKnown();
- boolean isOrdered = spliterator.hasCharacteristics(Spliterator.ORDERED);
-
- spliterator = supplier.get();
- ArrayList<T> fromTryAdvance = new ArrayList<>();
- Consumer<T> addToFromTryAdvance = boxingAdapter.apply(fromTryAdvance::add);
- while (spliterator.tryAdvance(addToFromTryAdvance)) { }
-
- // Assert that forEach now produces no elements
- spliterator.forEachRemaining(boxingAdapter.apply(
- e -> fail("Spliterator.forEach produced an element after spliterator exhausted: " + e)));
- // Assert that tryAdvance now produce no elements
- spliterator.tryAdvance(boxingAdapter.apply(
- e -> fail("Spliterator.tryAdvance produced an element after spliterator exhausted: " + e)));
-
- // assert that size, tryAdvance, and forEach are consistent
- if (sizeIfKnown >= 0) {
- assertEquals(sizeIfKnown, exp.size());
- }
- assertEquals(fromTryAdvance.size(), exp.size());
-
- assertContents(fromTryAdvance, exp, isOrdered);
- }
-
- private static <T, S extends Spliterator<T>> void testMixedTryAdvanceForEach(
- Collection<T> exp,
- Supplier<S> supplier,
- UnaryOperator<Consumer<T>> boxingAdapter) {
- S spliterator = supplier.get();
- long sizeIfKnown = spliterator.getExactSizeIfKnown();
- boolean isOrdered = spliterator.hasCharacteristics(Spliterator.ORDERED);
-
- // tryAdvance first few elements, then forEach rest
- ArrayList<T> dest = new ArrayList<>();
- spliterator = supplier.get();
- Consumer<T> addToDest = boxingAdapter.apply(dest::add);
- for (int i = 0; i < 10 && spliterator.tryAdvance(addToDest); i++) { }
- spliterator.forEachRemaining(addToDest);
-
- // Assert that forEach now produces no elements
- spliterator.forEachRemaining(boxingAdapter.apply(
- e -> fail("Spliterator.forEach produced an element after spliterator exhausted: " + e)));
- // Assert that tryAdvance now produce no elements
- spliterator.tryAdvance(boxingAdapter.apply(
- e -> fail("Spliterator.tryAdvance produced an element after spliterator exhausted: " + e)));
-
- if (sizeIfKnown >= 0) {
- assertEquals(sizeIfKnown, dest.size());
- }
- assertEquals(dest.size(), exp.size());
-
- if (isOrdered) {
- assertEquals(dest, exp);
- }
- else {
- assertContentsUnordered(dest, exp);
- }
- }
-
- private static <T, S extends Spliterator<T>> void testMixedTraverseAndSplit(
- Collection<T> exp,
- Supplier<S> supplier,
- UnaryOperator<Consumer<T>> boxingAdapter) {
- S spliterator = supplier.get();
- long sizeIfKnown = spliterator.getExactSizeIfKnown();
- boolean isOrdered = spliterator.hasCharacteristics(Spliterator.ORDERED);
-
- ArrayList<T> dest = new ArrayList<>();
- spliterator = supplier.get();
- Consumer<T> b = boxingAdapter.apply(dest::add);
-
- Spliterator<T> spl1, spl2, spl3;
- spliterator.tryAdvance(b);
- spl2 = spliterator.trySplit();
- if (spl2 != null) {
- spl2.tryAdvance(b);
- spl1 = spl2.trySplit();
- if (spl1 != null) {
- spl1.tryAdvance(b);
- spl1.forEachRemaining(b);
- }
- spl2.tryAdvance(b);
- spl2.forEachRemaining(b);
- }
- spliterator.tryAdvance(b);
- spl3 = spliterator.trySplit();
- if (spl3 != null) {
- spl3.tryAdvance(b);
- spl3.forEachRemaining(b);
- }
- spliterator.tryAdvance(b);
- spliterator.forEachRemaining(b);
-
- if (sizeIfKnown >= 0) {
- assertEquals(sizeIfKnown, dest.size());
- }
- assertEquals(dest.size(), exp.size());
-
- if (isOrdered) {
- assertEquals(dest, exp);
- }
- else {
- assertContentsUnordered(dest, exp);
- }
- }
-
- private static <T, S extends Spliterator<T>> void testSplitAfterFullTraversal(
- Supplier<S> supplier,
- UnaryOperator<Consumer<T>> boxingAdapter) {
- // Full traversal using tryAdvance
- Spliterator<T> spliterator = supplier.get();
- while (spliterator.tryAdvance(boxingAdapter.apply(e -> { }))) { }
- Spliterator<T> split = spliterator.trySplit();
- assertNull(split);
-
- // Full traversal using forEach
- spliterator = supplier.get();
- spliterator.forEachRemaining(boxingAdapter.apply(e -> {
- }));
- split = spliterator.trySplit();
- assertNull(split);
-
- // Full traversal using tryAdvance then forEach
- spliterator = supplier.get();
- spliterator.tryAdvance(boxingAdapter.apply(e -> { }));
- spliterator.forEachRemaining(boxingAdapter.apply(e -> {
- }));
- split = spliterator.trySplit();
- assertNull(split);
- }
-
- private static <T, S extends Spliterator<T>> void testSplitOnce(
- Collection<T> exp,
- Supplier<S> supplier,
- UnaryOperator<Consumer<T>> boxingAdapter) {
- S spliterator = supplier.get();
- long sizeIfKnown = spliterator.getExactSizeIfKnown();
- boolean isOrdered = spliterator.hasCharacteristics(Spliterator.ORDERED);
-
- ArrayList<T> fromSplit = new ArrayList<>();
- Spliterator<T> s1 = supplier.get();
- Spliterator<T> s2 = s1.trySplit();
- long s1Size = s1.getExactSizeIfKnown();
- long s2Size = (s2 != null) ? s2.getExactSizeIfKnown() : 0;
- Consumer<T> addToFromSplit = boxingAdapter.apply(fromSplit::add);
- if (s2 != null)
- s2.forEachRemaining(addToFromSplit);
- s1.forEachRemaining(addToFromSplit);
-
- if (sizeIfKnown >= 0) {
- assertEquals(sizeIfKnown, fromSplit.size());
- if (s1Size >= 0 && s2Size >= 0)
- assertEquals(sizeIfKnown, s1Size + s2Size);
- }
- assertContents(fromSplit, exp, isOrdered);
- }
-
- private static <T, S extends Spliterator<T>> void testSplitSixDeep(
- Collection<T> exp,
- Supplier<S> supplier,
- UnaryOperator<Consumer<T>> boxingAdapter) {
- S spliterator = supplier.get();
- boolean isOrdered = spliterator.hasCharacteristics(Spliterator.ORDERED);
-
- for (int depth=0; depth < 6; depth++) {
- List<T> dest = new ArrayList<>();
- spliterator = supplier.get();
-
- assertSpliterator(spliterator);
-
- // verify splitting with forEach
- visit(depth, 0, dest, spliterator, boxingAdapter, spliterator.characteristics(), false);
- assertContents(dest, exp, isOrdered);
-
- // verify splitting with tryAdvance
- dest.clear();
- spliterator = supplier.get();
- visit(depth, 0, dest, spliterator, boxingAdapter, spliterator.characteristics(), true);
- assertContents(dest, exp, isOrdered);
- }
- }
-
- private static <T, S extends Spliterator<T>>
- void visit(int depth, int curLevel,
- List<T> dest, S spliterator, UnaryOperator<Consumer<T>> boxingAdapter,
- int rootCharacteristics, boolean useTryAdvance) {
- if (curLevel < depth) {
- long beforeSize = spliterator.getExactSizeIfKnown();
- Spliterator<T> split = spliterator.trySplit();
- if (split != null) {
- assertSpliterator(split, rootCharacteristics);
- assertSpliterator(spliterator, rootCharacteristics);
-
- if ((rootCharacteristics & Spliterator.SUBSIZED) != 0 &&
- (rootCharacteristics & Spliterator.SIZED) != 0) {
- assertEquals(beforeSize, split.estimateSize() + spliterator.estimateSize());
- }
- visit(depth, curLevel + 1, dest, split, boxingAdapter, rootCharacteristics, useTryAdvance);
- }
- visit(depth, curLevel + 1, dest, spliterator, boxingAdapter, rootCharacteristics, useTryAdvance);
- }
- else {
- long sizeIfKnown = spliterator.getExactSizeIfKnown();
- if (useTryAdvance) {
- Consumer<T> addToDest = boxingAdapter.apply(dest::add);
- int count = 0;
- while (spliterator.tryAdvance(addToDest)) {
- ++count;
- }
-
- if (sizeIfKnown >= 0)
- assertEquals(sizeIfKnown, count);
-
- // Assert that forEach now produces no elements
- spliterator.forEachRemaining(boxingAdapter.apply(
- e -> fail("Spliterator.forEach produced an element after spliterator exhausted: " + e)));
-
- Spliterator<T> split = spliterator.trySplit();
- assertNull(split);
- }
- else {
- List<T> leafDest = new ArrayList<>();
- Consumer<T> addToLeafDest = boxingAdapter.apply(leafDest::add);
- spliterator.forEachRemaining(addToLeafDest);
-
- if (sizeIfKnown >= 0)
- assertEquals(sizeIfKnown, leafDest.size());
-
- // Assert that forEach now produces no elements
- spliterator.tryAdvance(boxingAdapter.apply(
- e -> fail("Spliterator.tryAdvance produced an element after spliterator exhausted: " + e)));
-
- Spliterator<T> split = spliterator.trySplit();
- assertNull(split);
-
- dest.addAll(leafDest);
- }
- }
- }
-
- private static <T, S extends Spliterator<T>> void testSplitUntilNull(
- Collection<T> exp,
- Supplier<S> supplier,
- UnaryOperator<Consumer<T>> boxingAdapter) {
- Spliterator<T> s = supplier.get();
- boolean isOrdered = s.hasCharacteristics(Spliterator.ORDERED);
- assertSpliterator(s);
-
- List<T> splits = new ArrayList<>();
- Consumer<T> c = boxingAdapter.apply(splits::add);
-
- testSplitUntilNull(new SplitNode<T>(c, s));
- assertContents(splits, exp, isOrdered);
- }
-
- private static class SplitNode<T> {
- // Constant for every node
- final Consumer<T> c;
- final int rootCharacteristics;
-
- final Spliterator<T> s;
-
- SplitNode(Consumer<T> c, Spliterator<T> s) {
- this(c, s.characteristics(), s);
- }
-
- private SplitNode(Consumer<T> c, int rootCharacteristics, Spliterator<T> s) {
- this.c = c;
- this.rootCharacteristics = rootCharacteristics;
- this.s = s;
- }
-
- SplitNode<T> fromSplit(Spliterator<T> split) {
- return new SplitNode<>(c, rootCharacteristics, split);
- }
- }
-
- /**
- * Set the maximum stack capacity to 0.25MB. This should be more than enough to detect a bad spliterator
- * while not unduly disrupting test infrastructure given the test data sizes that are used are small.
- * Note that j.u.c.ForkJoinPool sets the max queue size to 64M (1 << 26).
- */
- private static final int MAXIMUM_STACK_CAPACITY = 1 << 18; // 0.25MB
-
- private static <T> void testSplitUntilNull(SplitNode<T> e) {
- // Use an explicit stack to avoid a StackOverflowException when testing a Spliterator
- // that when repeatedly split produces a right-balanced (and maybe degenerate) tree, or
- // for a spliterator that is badly behaved.
- Deque<SplitNode<T>> stack = new ArrayDeque<>();
- stack.push(e);
-
- int iteration = 0;
- while (!stack.isEmpty()) {
- assertTrue(iteration++ < MAXIMUM_STACK_CAPACITY, "Exceeded maximum stack modification count of 1 << 18");
-
- e = stack.pop();
- Spliterator<T> parentAndRightSplit = e.s;
-
- long parentEstimateSize = parentAndRightSplit.estimateSize();
- assertTrue(parentEstimateSize >= 0,
- String.format("Split size estimate %d < 0", parentEstimateSize));
-
- long parentSize = parentAndRightSplit.getExactSizeIfKnown();
- Spliterator<T> leftSplit = parentAndRightSplit.trySplit();
- if (leftSplit == null) {
- parentAndRightSplit.forEachRemaining(e.c);
- continue;
- }
-
- assertSpliterator(leftSplit, e.rootCharacteristics);
- assertSpliterator(parentAndRightSplit, e.rootCharacteristics);
-
- if (parentEstimateSize != Long.MAX_VALUE && leftSplit.estimateSize() > 0 && parentAndRightSplit.estimateSize() > 0) {
- assertTrue(leftSplit.estimateSize() < parentEstimateSize,
- String.format("Left split size estimate %d >= parent split size estimate %d",
- leftSplit.estimateSize(), parentEstimateSize));
- assertTrue(parentAndRightSplit.estimateSize() < parentEstimateSize,
- String.format("Right split size estimate %d >= parent split size estimate %d",
- leftSplit.estimateSize(), parentEstimateSize));
- }
- else {
- assertTrue(leftSplit.estimateSize() <= parentEstimateSize,
- String.format("Left split size estimate %d > parent split size estimate %d",
- leftSplit.estimateSize(), parentEstimateSize));
- assertTrue(parentAndRightSplit.estimateSize() <= parentEstimateSize,
- String.format("Right split size estimate %d > parent split size estimate %d",
- leftSplit.estimateSize(), parentEstimateSize));
- }
-
- long leftSize = leftSplit.getExactSizeIfKnown();
- long rightSize = parentAndRightSplit.getExactSizeIfKnown();
- if (parentSize >= 0 && leftSize >= 0 && rightSize >= 0)
- assertEquals(parentSize, leftSize + rightSize,
- String.format("exact left split size %d + exact right split size %d != parent exact split size %d",
- leftSize, rightSize, parentSize));
-
- // Add right side to stack first so left side is popped off first
- stack.push(e.fromSplit(parentAndRightSplit));
- stack.push(e.fromSplit(leftSplit));
- }
- }
-
- private static void assertSpliterator(Spliterator<?> s, int rootCharacteristics) {
- if ((rootCharacteristics & Spliterator.SUBSIZED) != 0) {
- assertTrue(s.hasCharacteristics(Spliterator.SUBSIZED),
- "Child split is not SUBSIZED when root split is SUBSIZED");
- }
- assertSpliterator(s);
- }
-
- private static void assertSpliterator(Spliterator<?> s) {
- if (s.hasCharacteristics(Spliterator.SUBSIZED)) {
- assertTrue(s.hasCharacteristics(Spliterator.SIZED));
- }
- if (s.hasCharacteristics(Spliterator.SIZED)) {
- assertTrue(s.estimateSize() != Long.MAX_VALUE);
- assertTrue(s.getExactSizeIfKnown() >= 0);
- }
- try {
- s.getComparator();
- assertTrue(s.hasCharacteristics(Spliterator.SORTED));
- } catch (IllegalStateException e) {
- assertFalse(s.hasCharacteristics(Spliterator.SORTED));
- }
- }
-
- private static<T> void assertContents(Collection<T> actual, Collection<T> expected, boolean isOrdered) {
- if (isOrdered) {
- assertEquals(actual, expected);
- }
- else {
- assertContentsUnordered(actual, expected);
- }
- }
-
- private static<T> void assertContentsUnordered(Iterable<T> actual, Iterable<T> expected) {
- assertEquals(toBoxedMultiset(actual), toBoxedMultiset(expected));
- }
-
- private static <T> Map<T, Integer> toBoxedMultiset(Iterable<T> c) {
- Map<T, Integer> result = new HashMap<>();
- c.forEach(e -> {
- if (result.containsKey(e)) result.put(e, result.get(e) + 1);
- else result.put(e, 1);
- });
- return result;
- }
-
- private void executeAndCatch(Class<? extends Exception> expected, Runnable r) {
- Exception caught = null;
- try {
- r.run();
- }
- catch (Exception e) {
- caught = e;
- }
-
- assertNotNull(caught,
- String.format("No Exception was thrown, expected an Exception of %s to be thrown",
- expected.getName()));
- assertTrue(expected.isInstance(caught),
- String.format("Exception thrown %s not an instance of %s",
- caught.getClass().getName(), expected.getName()));
- }
-
-}