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/* |
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* Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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|
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/* |
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* @test |
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* @bug 6207984 6272521 6192552 6269713 6197726 6260652 5073546 4137464 |
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* 4155650 4216399 4294891 6282555 6318622 6355327 6383475 6420753 |
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* 6431845 4802633 6570566 6570575 6570631 6570924 6691185 6691215 |
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* 4802647 7123424 8024709 |
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* @summary Run many tests on many Collection and Map implementations |
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* @author Martin Buchholz |
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* @modules java.base/java.util:open |
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* @run main MOAT |
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* @key randomness |
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*/ |
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|
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/* Mother Of All (Collection) Tests |
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* |
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* Testing of collection classes is often spotty, because many tests |
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* need to be performed on many implementations, but the onus on |
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* writing the tests falls on the engineer introducing the new |
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* implementation. |
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* |
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* The idea of this mega-test is that: |
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* |
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* An engineer adding a new collection implementation could simply add |
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* their new implementation to a list of implementations in this |
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* test's main method. Any general purpose Collection<Integer> or |
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* Map<Integer,Integer> class is appropriate. |
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* |
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* An engineer fixing a regression could add their regression test here and |
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* simultaneously test all other implementations. |
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*/ |
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|
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import java.io.ByteArrayInputStream; |
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import java.io.ByteArrayOutputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.NotSerializableException; |
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import java.io.ObjectInputStream; |
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import java.io.ObjectOutputStream; |
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import java.io.Serializable; |
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import java.lang.reflect.Method; |
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import java.util.AbstractCollection; |
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import java.util.AbstractList; |
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import java.util.AbstractSet; |
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import java.util.ArrayDeque; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Collection; |
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import java.util.Collections; |
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import java.util.Deque; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.Hashtable; |
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import java.util.IdentityHashMap; |
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import java.util.Iterator; |
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import java.util.LinkedHashMap; |
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import java.util.LinkedHashSet; |
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import java.util.LinkedList; |
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import java.util.List; |
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import java.util.ListIterator; |
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import java.util.Map; |
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import java.util.NavigableMap; |
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import java.util.NavigableSet; |
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import java.util.NoSuchElementException; |
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import java.util.Objects; |
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import java.util.PriorityQueue; |
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import java.util.Queue; |
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import java.util.Random; |
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import java.util.RandomAccess; |
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import java.util.Set; |
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import java.util.TreeMap; |
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import java.util.TreeSet; |
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import java.util.Vector; |
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import java.util.concurrent.ArrayBlockingQueue; |
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import java.util.concurrent.ConcurrentHashMap; |
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import java.util.concurrent.ConcurrentLinkedDeque; |
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import java.util.concurrent.ConcurrentLinkedQueue; |
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import java.util.concurrent.ConcurrentMap; |
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import java.util.concurrent.ConcurrentSkipListMap; |
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import java.util.concurrent.ConcurrentSkipListSet; |
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import java.util.concurrent.CopyOnWriteArrayList; |
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import java.util.concurrent.CopyOnWriteArraySet; |
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import java.util.concurrent.LinkedBlockingDeque; |
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import java.util.concurrent.LinkedBlockingQueue; |
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import java.util.concurrent.LinkedTransferQueue; |
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import java.util.concurrent.PriorityBlockingQueue; |
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|
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import static java.util.Collections.EMPTY_LIST; |
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import static java.util.Collections.EMPTY_MAP; |
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import static java.util.Collections.EMPTY_SET; |
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import static java.util.Collections.emptyList; |
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import static java.util.Collections.emptyMap; |
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import static java.util.Collections.emptySet; |
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import static java.util.Collections.nCopies; |
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import static java.util.Collections.singleton; |
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import static java.util.Collections.singletonList; |
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import static java.util.Collections.singletonMap; |
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import static java.util.Collections.unmodifiableList; |
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import static java.util.Collections.unmodifiableMap; |
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import static java.util.Collections.unmodifiableSet; |
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|
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public class MOAT { |
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// Collections under test must not be initialized to contain this value, |
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// and maps under test must not contain this value as a key. |
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// It's used as a sentinel for absent-element testing. |
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static final int ABSENT_VALUE = 778347983; |
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|
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static final Integer[] integerArray; |
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static { |
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Integer[] ia = new Integer[20]; |
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// fill with 1..20 inclusive |
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for (int i = 0; i < ia.length; i++) { |
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ia[i] = i + 1; |
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} |
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integerArray = ia; |
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} |
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|
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public static void realMain(String[] args) { |
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|
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testCollection(new NewAbstractCollection<Integer>()); |
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testCollection(new NewAbstractSet<Integer>()); |
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testCollection(new LinkedHashSet<Integer>()); |
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testCollection(new HashSet<Integer>()); |
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testCollection(new Vector<Integer>()); |
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testCollection(new Vector<Integer>().subList(0,0)); |
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testCollection(new ArrayDeque<Integer>()); |
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testCollection(new ArrayList<Integer>()); |
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testCollection(new ArrayList<Integer>().subList(0,0)); |
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testCollection(new LinkedList<Integer>()); |
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testCollection(new LinkedList<Integer>().subList(0,0)); |
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testCollection(new TreeSet<Integer>()); |
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testCollection(Collections.checkedList(new ArrayList<Integer>(), Integer.class)); |
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testCollection(Collections.synchronizedList(new ArrayList<Integer>())); |
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testCollection(Collections.checkedSet(new HashSet<Integer>(), Integer.class)); |
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testCollection(Collections.checkedSortedSet(new TreeSet<Integer>(), Integer.class)); |
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testCollection(Collections.checkedNavigableSet(new TreeSet<Integer>(), Integer.class)); |
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testCollection(Collections.synchronizedSet(new HashSet<Integer>())); |
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testCollection(Collections.synchronizedSortedSet(new TreeSet<Integer>())); |
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testCollection(Collections.synchronizedNavigableSet(new TreeSet<Integer>())); |
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|
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testCollection(new CopyOnWriteArrayList<Integer>()); |
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testCollection(new CopyOnWriteArrayList<Integer>().subList(0,0)); |
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testCollection(new CopyOnWriteArraySet<Integer>()); |
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testCollection(new PriorityQueue<Integer>()); |
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testCollection(new PriorityBlockingQueue<Integer>()); |
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testCollection(new ArrayBlockingQueue<Integer>(20)); |
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testCollection(new LinkedBlockingQueue<Integer>(20)); |
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testCollection(new LinkedBlockingDeque<Integer>(20)); |
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testCollection(new ConcurrentLinkedDeque<Integer>()); |
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testCollection(new ConcurrentLinkedQueue<Integer>()); |
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testCollection(new LinkedTransferQueue<Integer>()); |
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testCollection(new ConcurrentSkipListSet<Integer>()); |
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testCollection(Arrays.asList(new Integer(42))); |
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testCollection(Arrays.asList(1,2,3)); |
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testCollection(nCopies(25,1)); |
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testImmutableList(nCopies(25,1)); |
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|
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testMap(new HashMap<Integer,Integer>()); |
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testMap(new LinkedHashMap<Integer,Integer>()); |
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|
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// TODO: Add reliable support for WeakHashMap. |
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// This test is subject to very rare failures because the GC |
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// may remove unreferenced-keys from the map at any time. |
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// testMap(new WeakHashMap<Integer,Integer>()); |
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|
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testMap(new IdentityHashMap<Integer,Integer>()); |
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testMap(new TreeMap<Integer,Integer>()); |
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testMap(new Hashtable<Integer,Integer>()); |
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testMap(new ConcurrentHashMap<Integer,Integer>(10, 0.5f)); |
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testMap(new ConcurrentSkipListMap<Integer,Integer>()); |
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testMap(Collections.checkedMap(new HashMap<Integer,Integer>(), Integer.class, Integer.class)); |
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testMap(Collections.checkedSortedMap(new TreeMap<Integer,Integer>(), Integer.class, Integer.class)); |
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testMap(Collections.checkedNavigableMap(new TreeMap<Integer,Integer>(), Integer.class, Integer.class)); |
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testMap(Collections.synchronizedMap(new HashMap<Integer,Integer>())); |
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testMap(Collections.synchronizedSortedMap(new TreeMap<Integer,Integer>())); |
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testMap(Collections.synchronizedNavigableMap(new TreeMap<Integer,Integer>())); |
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|
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// Unmodifiable wrappers |
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testImmutableSet(unmodifiableSet(new HashSet<>(Arrays.asList(1,2,3)))); |
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testImmutableList(unmodifiableList(Arrays.asList(1,2,3))); |
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testImmutableMap(unmodifiableMap(Collections.singletonMap(1,2))); |
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testCollMutatorsAlwaysThrow(unmodifiableSet(new HashSet<>(Arrays.asList(1,2,3)))); |
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testCollMutatorsAlwaysThrow(unmodifiableSet(Collections.emptySet())); |
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testEmptyCollMutatorsAlwaysThrow(unmodifiableSet(Collections.emptySet())); |
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testListMutatorsAlwaysThrow(unmodifiableList(Arrays.asList(1,2,3))); |
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testListMutatorsAlwaysThrow(unmodifiableList(Collections.emptyList())); |
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testEmptyListMutatorsAlwaysThrow(unmodifiableList(Collections.emptyList())); |
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testMapMutatorsAlwaysThrow(unmodifiableMap(Collections.singletonMap(1,2))); |
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testMapMutatorsAlwaysThrow(unmodifiableMap(Collections.emptyMap())); |
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testEmptyMapMutatorsAlwaysThrow(unmodifiableMap(Collections.emptyMap())); |
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|
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// Empty collections |
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final List<Integer> emptyArray = Arrays.asList(new Integer[]{}); |
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testCollection(emptyArray); |
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testEmptyList(emptyArray); |
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THROWS(IndexOutOfBoundsException.class, () -> emptyArray.set(0,1)); |
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THROWS(UnsupportedOperationException.class, () -> emptyArray.add(0,1)); |
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|
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List<Integer> noOne = nCopies(0,1); |
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testCollection(noOne); |
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testEmptyList(noOne); |
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testImmutableList(noOne); |
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|
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Set<Integer> emptySet = emptySet(); |
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testCollection(emptySet); |
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testEmptySet(emptySet); |
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testEmptySet(EMPTY_SET); |
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testEmptySet(Collections.emptySet()); |
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testEmptySet(Collections.emptySortedSet()); |
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testEmptySet(Collections.emptyNavigableSet()); |
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testImmutableSet(emptySet); |
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|
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List<Integer> emptyList = emptyList(); |
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testCollection(emptyList); |
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testEmptyList(emptyList); |
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testEmptyList(EMPTY_LIST); |
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testEmptyList(Collections.emptyList()); |
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testImmutableList(emptyList); |
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|
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Map<Integer,Integer> emptyMap = emptyMap(); |
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testMap(emptyMap); |
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testEmptyMap(emptyMap); |
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testEmptyMap(EMPTY_MAP); |
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testEmptyMap(Collections.emptyMap()); |
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testEmptyMap(Collections.emptySortedMap()); |
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testEmptyMap(Collections.emptyNavigableMap()); |
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testImmutableMap(emptyMap); |
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testImmutableMap(Collections.emptyMap()); |
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testImmutableMap(Collections.emptySortedMap()); |
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testImmutableMap(Collections.emptyNavigableMap()); |
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|
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// Singleton collections |
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Set<Integer> singletonSet = singleton(1); |
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equal(singletonSet.size(), 1); |
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testCollection(singletonSet); |
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testImmutableSet(singletonSet); |
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|
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List<Integer> singletonList = singletonList(1); |
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equal(singletonList.size(), 1); |
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testCollection(singletonList); |
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testImmutableList(singletonList); |
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testImmutableList(singletonList.subList(0,1)); |
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testImmutableList(singletonList.subList(0,1).subList(0,1)); |
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testEmptyList(singletonList.subList(0,0)); |
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testEmptyList(singletonList.subList(0,0).subList(0,0)); |
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|
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Map<Integer,Integer> singletonMap = singletonMap(1,2); |
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equal(singletonMap.size(), 1); |
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testMap(singletonMap); |
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testImmutableMap(singletonMap); |
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|
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// Immutable List |
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testEmptyList(List.of()); |
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testListMutatorsAlwaysThrow(List.of()); |
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testEmptyListMutatorsAlwaysThrow(List.of()); |
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for (List<Integer> list : Arrays.asList( |
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List.<Integer>of(), |
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List.of(1), |
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List.of(1, 2), |
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List.of(1, 2, 3), |
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List.of(1, 2, 3, 4), |
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List.of(1, 2, 3, 4, 5), |
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List.of(1, 2, 3, 4, 5, 6), |
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List.of(1, 2, 3, 4, 5, 6, 7), |
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List.of(1, 2, 3, 4, 5, 6, 7, 8), |
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List.of(1, 2, 3, 4, 5, 6, 7, 8, 9), |
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List.of(1, 2, 3, 4, 5, 6, 7, 8, 9, 10), |
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List.of(integerArray))) { |
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testCollection(list); |
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testImmutableList(list); |
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testListMutatorsAlwaysThrow(list); |
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} |
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|
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// Immutable Set |
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testEmptySet(Set.of()); |
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testCollMutatorsAlwaysThrow(Set.of()); |
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testEmptyCollMutatorsAlwaysThrow(Set.of()); |
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for (Set<Integer> set : Arrays.asList( |
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Set.<Integer>of(), |
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Set.of(1), |
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Set.of(1, 2), |
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Set.of(1, 2, 3), |
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Set.of(1, 2, 3, 4), |
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Set.of(1, 2, 3, 4, 5), |
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Set.of(1, 2, 3, 4, 5, 6), |
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Set.of(1, 2, 3, 4, 5, 6, 7), |
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Set.of(1, 2, 3, 4, 5, 6, 7, 8), |
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Set.of(1, 2, 3, 4, 5, 6, 7, 8, 9), |
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Set.of(1, 2, 3, 4, 5, 6, 7, 8, 9, 10), |
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Set.of(integerArray))) { |
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testCollection(set); |
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testImmutableSet(set); |
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testCollMutatorsAlwaysThrow(set); |
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} |
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|
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// Immutable Map |
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|
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@SuppressWarnings("unchecked") |
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Map.Entry<Integer,Integer>[] ea = (Map.Entry<Integer,Integer>[])new Map.Entry<?,?>[20]; |
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for (int i = 0; i < ea.length; i++) { |
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ea[i] = Map.entry(i+1, i+101); |
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} |
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|
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testEmptyMap(Map.of()); |
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testMapMutatorsAlwaysThrow(Map.of()); |
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testEmptyMapMutatorsAlwaysThrow(Map.of()); |
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for (Map<Integer,Integer> map : Arrays.asList( |
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Map.<Integer,Integer>of(), |
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Map.of(1, 101), |
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Map.of(1, 101, 2, 202), |
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Map.of(1, 101, 2, 202, 3, 303), |
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Map.of(1, 101, 2, 202, 3, 303, 4, 404), |
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Map.of(1, 101, 2, 202, 3, 303, 4, 404, 5, 505), |
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Map.of(1, 101, 2, 202, 3, 303, 4, 404, 5, 505, 6, 606), |
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Map.of(1, 101, 2, 202, 3, 303, 4, 404, 5, 505, 6, 606, 7, 707), |
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Map.of(1, 101, 2, 202, 3, 303, 4, 404, 5, 505, 6, 606, 7, 707, 8, 808), |
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Map.of(1, 101, 2, 202, 3, 303, 4, 404, 5, 505, 6, 606, 7, 707, 8, 808, 9, 909), |
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Map.of(1, 101, 2, 202, 3, 303, 4, 404, 5, 505, 6, 606, 7, 707, 8, 808, 9, 909, 10, 1010), |
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Map.ofEntries(ea))) { |
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testMap(map); |
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testImmutableMap(map); |
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testMapMutatorsAlwaysThrow(map); |
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} |
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} |
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|
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private static void checkContainsSelf(Collection<Integer> c) { |
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check(c.containsAll(c)); |
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check(c.containsAll(Arrays.asList(c.toArray()))); |
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check(c.containsAll(Arrays.asList(c.toArray(new Integer[0])))); |
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} |
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|
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private static void checkContainsEmpty(Collection<Integer> c) { |
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check(c.containsAll(new ArrayList<Integer>())); |
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} |
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|
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private static void checkUnique(Set<Integer> s) { |
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for (Integer i : s) { |
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int count = 0; |
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for (Integer j : s) { |
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if (Objects.equals(i,j)) |
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++count; |
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} |
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check(count == 1); |
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} |
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} |
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|
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private static <T> void testEmptyCollection(Collection<T> c) { |
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check(c.isEmpty()); |
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equal(c.size(), 0); |
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equal(c.toString(),"[]"); |
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equal(c.toArray().length, 0); |
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equal(c.toArray(new Object[0]).length, 0); |
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check(c.toArray(new Object[]{42})[0] == null); |
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|
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Object[] a = new Object[1]; a[0] = Boolean.TRUE; |
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equal(c.toArray(a), a); |
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equal(a[0], null); |
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testEmptyIterator(c.iterator()); |
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} |
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|
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static <T> void testEmptyIterator(final Iterator<T> it) { |
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if (rnd.nextBoolean()) |
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check(! it.hasNext()); |
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|
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THROWS(NoSuchElementException.class, () -> it.next()); |
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|
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try { it.remove(); } |
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catch (IllegalStateException ignored) { pass(); } |
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catch (UnsupportedOperationException ignored) { pass(); } |
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catch (Throwable t) { unexpected(t); } |
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|
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if (rnd.nextBoolean()) |
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check(! it.hasNext()); |
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} |
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|
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private static void testEmptyList(List<?> c) { |
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testEmptyCollection(c); |
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equal(c.hashCode(), 1); |
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equal2(c, Collections.<Integer>emptyList()); |
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} |
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|
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private static <T> void testEmptySet(Set<T> c) { |
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testEmptyCollection(c); |
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equal(c.hashCode(), 0); |
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equal2(c, Collections.<Integer>emptySet()); |
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if (c instanceof NavigableSet<?>) |
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testEmptyIterator(((NavigableSet<T>)c).descendingIterator()); |
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} |
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|
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private static void testImmutableCollection(final Collection<Integer> c) { |
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THROWS(UnsupportedOperationException.class, |
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() -> c.add(99), |
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() -> c.addAll(singleton(99))); |
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if (! c.isEmpty()) { |
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final Integer first = c.iterator().next(); |
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THROWS(UnsupportedOperationException.class, |
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() -> c.clear(), |
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() -> c.remove(first), |
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() -> c.removeAll(singleton(first)), |
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() -> c.retainAll(emptyList())); |
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} |
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} |
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|
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private static void testImmutableSet(final Set<Integer> c) { |
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testImmutableCollection(c); |
428 |
} |
429 |
|
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private static void testImmutableList(final List<Integer> c) { |
431 |
testList(c); |
432 |
testImmutableCollection(c); |
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THROWS(UnsupportedOperationException.class, |
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() -> c.set(0,42), |
435 |
() -> c.add(0,42), |
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() -> c.addAll(0,singleton(86))); |
437 |
if (! c.isEmpty()) |
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THROWS(UnsupportedOperationException.class, |
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() -> { Iterator<Integer> it = c.iterator(); |
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it.next(); |
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it.remove(); }, |
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() -> { ListIterator<Integer> it = c.listIterator(); |
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it.next(); |
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it.remove(); }); |
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} |
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|
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/** |
448 |
* Test that calling a mutator always throws UOE, even if the mutator |
449 |
* wouldn't actually do anything, given its arguments. |
450 |
* |
451 |
* @param c the collection instance to test |
452 |
*/ |
453 |
private static void testCollMutatorsAlwaysThrow(Collection<Integer> c) { |
454 |
THROWS(UnsupportedOperationException.class, |
455 |
() -> c.addAll(Collections.emptyList()), |
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() -> c.remove(ABSENT_VALUE), |
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() -> c.removeAll(Collections.emptyList()), |
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() -> c.removeIf(x -> false), |
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() -> c.retainAll(c)); |
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} |
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|
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/** |
463 |
* Test that calling a mutator always throws UOE, even if the mutator |
464 |
* wouldn't actually do anything on an empty collection. |
465 |
* |
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* @param c the collection instance to test, must be empty |
467 |
*/ |
468 |
private static void testEmptyCollMutatorsAlwaysThrow(Collection<Integer> c) { |
469 |
if (! c.isEmpty()) { |
470 |
fail("collection is not empty"); |
471 |
} |
472 |
THROWS(UnsupportedOperationException.class, |
473 |
() -> c.clear()); |
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} |
475 |
|
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/** |
477 |
* As above, for a list. |
478 |
* |
479 |
* @param c the list instance to test |
480 |
*/ |
481 |
private static void testListMutatorsAlwaysThrow(List<Integer> c) { |
482 |
testCollMutatorsAlwaysThrow(c); |
483 |
THROWS(UnsupportedOperationException.class, |
484 |
() -> c.addAll(0, Collections.emptyList())); |
485 |
} |
486 |
|
487 |
/** |
488 |
* As above, for an empty list. |
489 |
* |
490 |
* @param c the list instance to test, must be empty |
491 |
*/ |
492 |
private static void testEmptyListMutatorsAlwaysThrow(List<Integer> c) { |
493 |
if (! c.isEmpty()) { |
494 |
fail("list is not empty"); |
495 |
} |
496 |
testEmptyCollMutatorsAlwaysThrow(c); |
497 |
THROWS(UnsupportedOperationException.class, |
498 |
() -> c.replaceAll(x -> x), |
499 |
() -> c.sort(null)); |
500 |
} |
501 |
|
502 |
/** |
503 |
* As above, for a map. |
504 |
* |
505 |
* @param m the map instance to test |
506 |
*/ |
507 |
private static void testMapMutatorsAlwaysThrow(Map<Integer,Integer> m) { |
508 |
THROWS(UnsupportedOperationException.class, |
509 |
() -> m.compute(ABSENT_VALUE, (k, v) -> null), |
510 |
() -> m.computeIfAbsent(ABSENT_VALUE, k -> null), |
511 |
() -> m.computeIfPresent(ABSENT_VALUE, (k, v) -> null), |
512 |
() -> m.merge(ABSENT_VALUE, 0, (k, v) -> null), |
513 |
() -> m.putAll(Collections.emptyMap()), |
514 |
() -> m.remove(ABSENT_VALUE), |
515 |
() -> m.remove(ABSENT_VALUE, 0), |
516 |
() -> m.replace(ABSENT_VALUE, 0), |
517 |
() -> m.replace(ABSENT_VALUE, 0, 1)); |
518 |
} |
519 |
|
520 |
/** |
521 |
* As above, for an empty map. |
522 |
* |
523 |
* @param m the map instance to test, must be empty |
524 |
*/ |
525 |
private static void testEmptyMapMutatorsAlwaysThrow(Map<Integer,Integer> m) { |
526 |
if (! m.isEmpty()) { |
527 |
fail("map is not empty"); |
528 |
} |
529 |
THROWS(UnsupportedOperationException.class, |
530 |
() -> m.clear(), |
531 |
() -> m.replaceAll((k, v) -> v)); |
532 |
} |
533 |
|
534 |
private static void clear(Collection<Integer> c) { |
535 |
try { c.clear(); } |
536 |
catch (Throwable t) { unexpected(t); } |
537 |
testEmptyCollection(c); |
538 |
} |
539 |
|
540 |
private static <K,V> void testEmptyMap(final Map<K,V> m) { |
541 |
check(m.isEmpty()); |
542 |
equal(m.size(), 0); |
543 |
equal(m.toString(),"{}"); |
544 |
testEmptySet(m.keySet()); |
545 |
testEmptySet(m.entrySet()); |
546 |
testEmptyCollection(m.values()); |
547 |
|
548 |
try { check(! m.containsValue(null)); } |
549 |
catch (NullPointerException ignored) { /* OK */ } |
550 |
try { check(! m.containsKey(null)); } |
551 |
catch (NullPointerException ignored) { /* OK */ } |
552 |
check(! m.containsValue(1)); |
553 |
check(! m.containsKey(1)); |
554 |
} |
555 |
|
556 |
private static void testImmutableMap(final Map<Integer,Integer> m) { |
557 |
THROWS(UnsupportedOperationException.class, |
558 |
() -> m.put(1,1), |
559 |
() -> m.putAll(singletonMap(1,1))); |
560 |
if (! m.isEmpty()) { |
561 |
final Integer first = m.keySet().iterator().next(); |
562 |
THROWS(UnsupportedOperationException.class, |
563 |
() -> m.remove(first), |
564 |
() -> m.clear()); |
565 |
final Map.Entry<Integer,Integer> me |
566 |
= m.entrySet().iterator().next(); |
567 |
Integer key = me.getKey(); |
568 |
Integer val = me.getValue(); |
569 |
THROWS(UnsupportedOperationException.class, |
570 |
() -> me.setValue(3)); |
571 |
equal(key, me.getKey()); |
572 |
equal(val, me.getValue()); |
573 |
} |
574 |
testImmutableSet(m.keySet()); |
575 |
testImmutableCollection(m.values()); |
576 |
//testImmutableSet(m.entrySet()); |
577 |
} |
578 |
|
579 |
private static void clear(Map<?,?> m) { |
580 |
try { m.clear(); } |
581 |
catch (Throwable t) { unexpected(t); } |
582 |
testEmptyMap(m); |
583 |
} |
584 |
|
585 |
private static void oneElement(Collection<Integer> c) { |
586 |
clear(c); |
587 |
try { |
588 |
check(c.add(-42)); |
589 |
equal(c.toString(), "[-42]"); |
590 |
if (c instanceof Set) check(! c.add(-42)); |
591 |
} catch (Throwable t) { unexpected(t); } |
592 |
check(! c.isEmpty()); check(c.size() == 1); |
593 |
} |
594 |
|
595 |
private static boolean supportsAdd(Collection<Integer> c) { |
596 |
try { check(c.add(ABSENT_VALUE)); } |
597 |
catch (UnsupportedOperationException t) { return false; } |
598 |
catch (Throwable t) { unexpected(t); } |
599 |
|
600 |
try { |
601 |
check(c.contains(ABSENT_VALUE)); |
602 |
check(c.remove(ABSENT_VALUE)); |
603 |
} catch (Throwable t) { unexpected(t); } |
604 |
return true; |
605 |
} |
606 |
|
607 |
private static boolean supportsRemove(Collection<Integer> c) { |
608 |
try { check(! c.remove(ABSENT_VALUE)); } |
609 |
catch (UnsupportedOperationException t) { return false; } |
610 |
catch (Throwable t) { unexpected(t); } |
611 |
return true; |
612 |
} |
613 |
|
614 |
// 6260652: (coll) Arrays.asList(x).toArray().getClass() |
615 |
// should be Object[].class |
616 |
// Fixed in jdk9, but not jdk8 ... |
617 |
static final boolean needToWorkAround6260652 = |
618 |
Arrays.asList("").toArray().getClass() != Object[].class; |
619 |
|
620 |
private static void checkFunctionalInvariants(Collection<Integer> c) { |
621 |
try { |
622 |
checkContainsSelf(c); |
623 |
checkContainsEmpty(c); |
624 |
check(c.size() != 0 ^ c.isEmpty()); |
625 |
check(! c.contains(ABSENT_VALUE)); |
626 |
|
627 |
{ |
628 |
int size = 0; |
629 |
for (Integer i : c) size++; |
630 |
check(c.size() == size); |
631 |
} |
632 |
|
633 |
if (c instanceof Set) { |
634 |
checkUnique((Set<Integer>)c); |
635 |
} |
636 |
|
637 |
check(c.toArray().length == c.size()); |
638 |
check(c.toArray().getClass() == Object[].class |
639 |
|| |
640 |
(needToWorkAround6260652 && |
641 |
c.getClass().getName().equals("java.util.Arrays$ArrayList"))); |
642 |
for (int size : new int[]{0,1,c.size(), c.size()+1}) { |
643 |
Integer[] a = c.toArray(new Integer[size]); |
644 |
check((size > c.size()) || a.length == c.size()); |
645 |
int i = 0; for (Integer j : c) check(a[i++] == j); |
646 |
check((size <= c.size()) || (a[c.size()] == null)); |
647 |
check(a.getClass() == Integer[].class); |
648 |
} |
649 |
|
650 |
check(c.equals(c)); |
651 |
if (c instanceof Serializable) { |
652 |
//System.out.printf("Serializing %s%n", c.getClass().getName()); |
653 |
try { |
654 |
Object clone = serialClone(c); |
655 |
equal(c instanceof Serializable, |
656 |
clone instanceof Serializable); |
657 |
equal(c instanceof RandomAccess, |
658 |
clone instanceof RandomAccess); |
659 |
if ((c instanceof List) || (c instanceof Set)) |
660 |
equal(c, clone); |
661 |
else |
662 |
equal(new HashSet<Integer>(c), |
663 |
new HashSet<Integer>(serialClone(c))); |
664 |
} catch (Error xxx) { |
665 |
if (! (xxx.getCause() instanceof NotSerializableException)) |
666 |
throw xxx; |
667 |
} |
668 |
} |
669 |
} |
670 |
catch (Throwable t) { unexpected(t); } |
671 |
} |
672 |
|
673 |
//---------------------------------------------------------------- |
674 |
// If add(null) succeeds, contains(null) & remove(null) should succeed |
675 |
//---------------------------------------------------------------- |
676 |
private static void testNullElement(Collection<Integer> c) { |
677 |
|
678 |
try { |
679 |
check(c.add(null)); |
680 |
if (c.size() == 1) |
681 |
equal(c.toString(), "[null]"); |
682 |
try { |
683 |
checkFunctionalInvariants(c); |
684 |
check(c.contains(null)); |
685 |
check(c.remove(null)); |
686 |
} |
687 |
catch (Throwable t) { unexpected(t); } |
688 |
} |
689 |
catch (NullPointerException e) { /* OK */ } |
690 |
catch (Throwable t) { unexpected(t); } |
691 |
} |
692 |
|
693 |
//---------------------------------------------------------------- |
694 |
// If add("x") succeeds, contains("x") & remove("x") should succeed |
695 |
//---------------------------------------------------------------- |
696 |
@SuppressWarnings("unchecked") |
697 |
private static void testStringElement(Collection<Integer> c) { |
698 |
Collection x = (Collection)c; // Make type-unsafe |
699 |
try { |
700 |
check(x.add("x")); |
701 |
try { |
702 |
check(x.contains("x")); |
703 |
check(x.remove("x")); |
704 |
} catch (Throwable t) { unexpected(t); } |
705 |
} |
706 |
catch (ClassCastException e) { /* OK */ } |
707 |
catch (Throwable t) { unexpected(t); } |
708 |
} |
709 |
|
710 |
private static void testConcurrentCollection(Collection<Integer> c) { |
711 |
try { |
712 |
c.add(1); |
713 |
Iterator<Integer> it = c.iterator(); |
714 |
check(it.hasNext()); |
715 |
clear(c); |
716 |
check(it.next() instanceof Integer); // No CME |
717 |
check(c.isEmpty()); |
718 |
} |
719 |
catch (Throwable t) { unexpected(t); } |
720 |
} |
721 |
|
722 |
private static void testQueue(Queue<Integer> q) { |
723 |
q.clear(); |
724 |
for (int i = 0; i < 5; i++) { |
725 |
testQueueAddRemove(q, null); |
726 |
testQueueAddRemove(q, 537); |
727 |
q.add(i); |
728 |
} |
729 |
equal(q.size(), 5); |
730 |
checkFunctionalInvariants(q); |
731 |
q.poll(); |
732 |
equal(q.size(), 4); |
733 |
checkFunctionalInvariants(q); |
734 |
if ((q instanceof LinkedBlockingQueue) || |
735 |
(q instanceof LinkedBlockingDeque) || |
736 |
(q instanceof ConcurrentLinkedDeque) || |
737 |
(q instanceof ConcurrentLinkedQueue)) { |
738 |
testQueueIteratorRemove(q); |
739 |
} |
740 |
} |
741 |
|
742 |
private static void testQueueAddRemove(final Queue<Integer> q, |
743 |
final Integer e) { |
744 |
final List<Integer> originalContents = new ArrayList<>(q); |
745 |
final boolean isEmpty = q.isEmpty(); |
746 |
final boolean isList = (q instanceof List); |
747 |
final List asList = isList ? (List) q : null; |
748 |
check(!q.contains(e)); |
749 |
try { |
750 |
q.add(e); |
751 |
} catch (NullPointerException npe) { |
752 |
check(e == null); |
753 |
return; // Null elements not supported |
754 |
} |
755 |
check(q.contains(e)); |
756 |
check(q.remove(e)); |
757 |
check(!q.contains(e)); |
758 |
equal(new ArrayList<Integer>(q), originalContents); |
759 |
|
760 |
if (q instanceof Deque<?>) { |
761 |
final Deque<Integer> deq = (Deque<Integer>) q; |
762 |
final List<Integer> singleton = Collections.singletonList(e); |
763 |
|
764 |
// insert, query, remove element at head |
765 |
if (isEmpty) { |
766 |
THROWS(NoSuchElementException.class, |
767 |
() -> deq.getFirst(), |
768 |
() -> deq.element(), |
769 |
() -> deq.iterator().next()); |
770 |
check(deq.peekFirst() == null); |
771 |
check(deq.peek() == null); |
772 |
} else { |
773 |
check(deq.getFirst() != e); |
774 |
check(deq.element() != e); |
775 |
check(deq.iterator().next() != e); |
776 |
check(deq.peekFirst() != e); |
777 |
check(deq.peek() != e); |
778 |
} |
779 |
check(!deq.contains(e)); |
780 |
check(!deq.removeFirstOccurrence(e)); |
781 |
check(!deq.removeLastOccurrence(e)); |
782 |
if (isList) { |
783 |
check(asList.indexOf(e) == -1); |
784 |
check(asList.lastIndexOf(e) == -1); |
785 |
} |
786 |
switch (rnd.nextInt(isList ? 4 : 3)) { |
787 |
case 0: deq.addFirst(e); break; |
788 |
case 1: check(deq.offerFirst(e)); break; |
789 |
case 2: deq.push(e); break; |
790 |
case 3: asList.add(0, e); break; |
791 |
default: throw new AssertionError(); |
792 |
} |
793 |
check(deq.peekFirst() == e); |
794 |
check(deq.getFirst() == e); |
795 |
check(deq.element() == e); |
796 |
check(deq.peek() == e); |
797 |
check(deq.iterator().next() == e); |
798 |
check(deq.contains(e)); |
799 |
if (isList) { |
800 |
check(asList.get(0) == e); |
801 |
check(asList.indexOf(e) == 0); |
802 |
check(asList.lastIndexOf(e) == 0); |
803 |
check(asList.subList(0, 1).equals(singleton)); |
804 |
} |
805 |
switch (rnd.nextInt(isList ? 11 : 9)) { |
806 |
case 0: check(deq.pollFirst() == e); break; |
807 |
case 1: check(deq.removeFirst() == e); break; |
808 |
case 2: check(deq.remove() == e); break; |
809 |
case 3: check(deq.pop() == e); break; |
810 |
case 4: check(deq.removeFirstOccurrence(e)); break; |
811 |
case 5: check(deq.removeLastOccurrence(e)); break; |
812 |
case 6: check(deq.remove(e)); break; |
813 |
case 7: check(deq.removeAll(singleton)); break; |
814 |
case 8: Iterator it = deq.iterator(); it.next(); it.remove(); break; |
815 |
case 9: asList.remove(0); break; |
816 |
case 10: asList.subList(0, 1).clear(); break; |
817 |
default: throw new AssertionError(); |
818 |
} |
819 |
if (isEmpty) { |
820 |
THROWS(NoSuchElementException.class, |
821 |
() -> deq.getFirst(), |
822 |
() -> deq.element(), |
823 |
() -> deq.iterator().next()); |
824 |
check(deq.peekFirst() == null); |
825 |
check(deq.peek() == null); |
826 |
} else { |
827 |
check(deq.getFirst() != e); |
828 |
check(deq.element() != e); |
829 |
check(deq.iterator().next() != e); |
830 |
check(deq.peekFirst() != e); |
831 |
check(deq.peek() != e); |
832 |
} |
833 |
check(!deq.contains(e)); |
834 |
check(!deq.removeFirstOccurrence(e)); |
835 |
check(!deq.removeLastOccurrence(e)); |
836 |
if (isList) { |
837 |
check(isEmpty || asList.get(0) != e); |
838 |
check(asList.indexOf(e) == -1); |
839 |
check(asList.lastIndexOf(e) == -1); |
840 |
} |
841 |
equal(new ArrayList<Integer>(deq), originalContents); |
842 |
|
843 |
// insert, query, remove element at tail |
844 |
if (isEmpty) { |
845 |
check(deq.peekLast() == null); |
846 |
THROWS(NoSuchElementException.class, () -> deq.getLast()); |
847 |
} else { |
848 |
check(deq.peekLast() != e); |
849 |
check(deq.getLast() != e); |
850 |
} |
851 |
switch (rnd.nextInt(isList ? 6 : 4)) { |
852 |
case 0: deq.addLast(e); break; |
853 |
case 1: check(deq.offerLast(e)); break; |
854 |
case 2: check(deq.add(e)); break; |
855 |
case 3: deq.addAll(singleton); break; |
856 |
case 4: asList.addAll(deq.size(), singleton); break; |
857 |
case 5: asList.add(deq.size(), e); break; |
858 |
default: throw new AssertionError(); |
859 |
} |
860 |
check(deq.peekLast() == e); |
861 |
check(deq.getLast() == e); |
862 |
check(deq.contains(e)); |
863 |
if (isList) { |
864 |
ListIterator it = asList.listIterator(asList.size()); |
865 |
check(it.previous() == e); |
866 |
check(asList.get(asList.size() - 1) == e); |
867 |
check(asList.indexOf(e) == asList.size() - 1); |
868 |
check(asList.lastIndexOf(e) == asList.size() - 1); |
869 |
int size = asList.size(); |
870 |
check(asList.subList(size - 1, size).equals(singleton)); |
871 |
} |
872 |
switch (rnd.nextInt(isList ? 8 : 6)) { |
873 |
case 0: check(deq.pollLast() == e); break; |
874 |
case 1: check(deq.removeLast() == e); break; |
875 |
case 2: check(deq.removeFirstOccurrence(e)); break; |
876 |
case 3: check(deq.removeLastOccurrence(e)); break; |
877 |
case 4: check(deq.remove(e)); break; |
878 |
case 5: check(deq.removeAll(singleton)); break; |
879 |
case 6: asList.remove(asList.size() - 1); break; |
880 |
case 7: |
881 |
ListIterator it = asList.listIterator(asList.size()); |
882 |
it.previous(); |
883 |
it.remove(); |
884 |
break; |
885 |
default: throw new AssertionError(); |
886 |
} |
887 |
if (isEmpty) { |
888 |
check(deq.peekLast() == null); |
889 |
THROWS(NoSuchElementException.class, () -> deq.getLast()); |
890 |
} else { |
891 |
check(deq.peekLast() != e); |
892 |
check(deq.getLast() != e); |
893 |
} |
894 |
check(!deq.contains(e)); |
895 |
equal(new ArrayList<Integer>(deq), originalContents); |
896 |
|
897 |
// Test operations on empty deque |
898 |
switch (rnd.nextInt(isList ? 4 : 2)) { |
899 |
case 0: deq.clear(); break; |
900 |
case 1: |
901 |
Iterator it = deq.iterator(); |
902 |
while (it.hasNext()) { |
903 |
it.next(); |
904 |
it.remove(); |
905 |
} |
906 |
break; |
907 |
case 2: asList.subList(0, asList.size()).clear(); break; |
908 |
case 3: |
909 |
ListIterator lit = asList.listIterator(asList.size()); |
910 |
while (lit.hasPrevious()) { |
911 |
lit.previous(); |
912 |
lit.remove(); |
913 |
} |
914 |
break; |
915 |
default: throw new AssertionError(); |
916 |
} |
917 |
testEmptyCollection(deq); |
918 |
check(!deq.iterator().hasNext()); |
919 |
if (isList) { |
920 |
check(!asList.listIterator().hasPrevious()); |
921 |
THROWS(NoSuchElementException.class, |
922 |
() -> asList.listIterator().previous()); |
923 |
} |
924 |
THROWS(NoSuchElementException.class, |
925 |
() -> deq.iterator().next(), |
926 |
() -> deq.element(), |
927 |
() -> deq.getFirst(), |
928 |
() -> deq.getLast(), |
929 |
() -> deq.pop(), |
930 |
() -> deq.remove(), |
931 |
() -> deq.removeFirst(), |
932 |
() -> deq.removeLast()); |
933 |
|
934 |
check(deq.poll() == null); |
935 |
check(deq.pollFirst() == null); |
936 |
check(deq.pollLast() == null); |
937 |
check(deq.peek() == null); |
938 |
check(deq.peekFirst() == null); |
939 |
check(deq.peekLast() == null); |
940 |
check(!deq.removeFirstOccurrence(e)); |
941 |
check(!deq.removeLastOccurrence(e)); |
942 |
|
943 |
check(deq.addAll(originalContents) == !isEmpty); |
944 |
equal(new ArrayList<Integer>(deq), originalContents); |
945 |
check(!deq.addAll(Collections.<Integer>emptyList())); |
946 |
equal(new ArrayList<Integer>(deq), originalContents); |
947 |
} |
948 |
} |
949 |
|
950 |
private static void testQueueIteratorRemove(Queue<Integer> q) { |
951 |
System.err.printf("testQueueIteratorRemove %s%n", |
952 |
q.getClass().getSimpleName()); |
953 |
q.clear(); |
954 |
for (int i = 0; i < 5; i++) |
955 |
q.add(i); |
956 |
Iterator<Integer> it = q.iterator(); |
957 |
check(it.hasNext()); |
958 |
for (int i = 3; i >= 0; i--) |
959 |
q.remove(i); |
960 |
equal(it.next(), 0); |
961 |
equal(it.next(), 4); |
962 |
|
963 |
q.clear(); |
964 |
for (int i = 0; i < 5; i++) |
965 |
q.add(i); |
966 |
it = q.iterator(); |
967 |
equal(it.next(), 0); |
968 |
check(it.hasNext()); |
969 |
for (int i = 1; i < 4; i++) |
970 |
q.remove(i); |
971 |
equal(it.next(), 1); |
972 |
equal(it.next(), 4); |
973 |
} |
974 |
|
975 |
private static void testList(final List<Integer> l) { |
976 |
//---------------------------------------------------------------- |
977 |
// 4802633: (coll) AbstractList.addAll(-1,emptyCollection) |
978 |
// doesn't throw IndexOutOfBoundsException |
979 |
//---------------------------------------------------------------- |
980 |
try { |
981 |
l.addAll(-1, Collections.<Integer>emptyList()); |
982 |
fail("Expected IndexOutOfBoundsException not thrown"); |
983 |
} |
984 |
catch (UnsupportedOperationException ignored) {/* OK */} |
985 |
catch (IndexOutOfBoundsException ignored) {/* OK */} |
986 |
catch (Throwable t) { unexpected(t); } |
987 |
|
988 |
// equal(l instanceof Serializable, |
989 |
// l.subList(0,0) instanceof Serializable); |
990 |
if (l.subList(0,0) instanceof Serializable) |
991 |
check(l instanceof Serializable); |
992 |
|
993 |
equal(l instanceof RandomAccess, |
994 |
l.subList(0,0) instanceof RandomAccess); |
995 |
|
996 |
l.iterator(); |
997 |
l.listIterator(); |
998 |
l.listIterator(0); |
999 |
l.listIterator(l.size()); |
1000 |
THROWS(IndexOutOfBoundsException.class, |
1001 |
() -> l.listIterator(-1), |
1002 |
() -> l.listIterator(l.size() + 1)); |
1003 |
|
1004 |
if (l instanceof AbstractList) { |
1005 |
try { |
1006 |
int size = l.size(); |
1007 |
AbstractList<Integer> abList = (AbstractList<Integer>) l; |
1008 |
Method m = AbstractList.class.getDeclaredMethod("removeRange", int.class, int.class); |
1009 |
m.setAccessible(true); |
1010 |
m.invoke(abList, 0, 0); |
1011 |
m.invoke(abList, size, size); |
1012 |
equal(size, l.size()); |
1013 |
} |
1014 |
catch (UnsupportedOperationException ignored) {/* OK */} |
1015 |
catch (Throwable t) { unexpected(t); } |
1016 |
} |
1017 |
} |
1018 |
|
1019 |
private static void testCollection(Collection<Integer> c) { |
1020 |
try { testCollection1(c); } |
1021 |
catch (Throwable t) { unexpected(t); } |
1022 |
} |
1023 |
|
1024 |
private static void testCollection1(Collection<Integer> c) { |
1025 |
|
1026 |
System.out.println("\n==> " + c.getClass().getName()); |
1027 |
|
1028 |
checkFunctionalInvariants(c); |
1029 |
|
1030 |
if (! supportsAdd(c)) return; |
1031 |
//System.out.println("add() supported"); |
1032 |
|
1033 |
if (c instanceof NavigableSet) { |
1034 |
System.out.println("NavigableSet tests..."); |
1035 |
|
1036 |
NavigableSet<Integer> ns = (NavigableSet<Integer>)c; |
1037 |
testNavigableSet(ns); |
1038 |
testNavigableSet(ns.headSet(6, false)); |
1039 |
testNavigableSet(ns.headSet(5, true)); |
1040 |
testNavigableSet(ns.tailSet(0, false)); |
1041 |
testNavigableSet(ns.tailSet(1, true)); |
1042 |
testNavigableSet(ns.subSet(0, false, 5, true)); |
1043 |
testNavigableSet(ns.subSet(1, true, 6, false)); |
1044 |
} |
1045 |
|
1046 |
if (c instanceof Queue) |
1047 |
testQueue((Queue<Integer>)c); |
1048 |
|
1049 |
if (c instanceof List) |
1050 |
testList((List<Integer>)c); |
1051 |
|
1052 |
check(supportsRemove(c)); |
1053 |
|
1054 |
try { |
1055 |
oneElement(c); |
1056 |
checkFunctionalInvariants(c); |
1057 |
} |
1058 |
catch (Throwable t) { unexpected(t); } |
1059 |
|
1060 |
clear(c); testNullElement(c); |
1061 |
oneElement(c); testNullElement(c); |
1062 |
|
1063 |
clear(c); testStringElement(c); |
1064 |
oneElement(c); testStringElement(c); |
1065 |
|
1066 |
if (c.getClass().getName().matches(".*concurrent.*")) |
1067 |
testConcurrentCollection(c); |
1068 |
|
1069 |
//---------------------------------------------------------------- |
1070 |
// The "all" operations should throw NPE when passed null |
1071 |
//---------------------------------------------------------------- |
1072 |
{ |
1073 |
clear(c); |
1074 |
try { |
1075 |
c.removeAll(null); |
1076 |
fail("Expected NullPointerException"); |
1077 |
} |
1078 |
catch (NullPointerException e) { pass(); } |
1079 |
catch (Throwable t) { unexpected(t); } |
1080 |
|
1081 |
oneElement(c); |
1082 |
try { |
1083 |
c.removeAll(null); |
1084 |
fail("Expected NullPointerException"); |
1085 |
} |
1086 |
catch (NullPointerException e) { pass(); } |
1087 |
catch (Throwable t) { unexpected(t); } |
1088 |
|
1089 |
clear(c); |
1090 |
try { |
1091 |
c.retainAll(null); |
1092 |
fail("Expected NullPointerException"); |
1093 |
} |
1094 |
catch (NullPointerException e) { pass(); } |
1095 |
catch (Throwable t) { unexpected(t); } |
1096 |
|
1097 |
oneElement(c); |
1098 |
try { |
1099 |
c.retainAll(null); |
1100 |
fail("Expected NullPointerException"); |
1101 |
} |
1102 |
catch (NullPointerException e) { pass(); } |
1103 |
catch (Throwable t) { unexpected(t); } |
1104 |
|
1105 |
oneElement(c); |
1106 |
try { |
1107 |
c.addAll(null); |
1108 |
fail("Expected NullPointerException"); |
1109 |
} |
1110 |
catch (NullPointerException e) { pass(); } |
1111 |
catch (Throwable t) { unexpected(t); } |
1112 |
|
1113 |
oneElement(c); |
1114 |
try { |
1115 |
c.containsAll(null); |
1116 |
fail("Expected NullPointerException"); |
1117 |
} |
1118 |
catch (NullPointerException e) { pass(); } |
1119 |
catch (Throwable t) { unexpected(t); } |
1120 |
} |
1121 |
} |
1122 |
|
1123 |
//---------------------------------------------------------------- |
1124 |
// Map |
1125 |
//---------------------------------------------------------------- |
1126 |
private static void checkFunctionalInvariants(Map<Integer,Integer> m) { |
1127 |
check(m.keySet().size() == m.entrySet().size()); |
1128 |
check(m.keySet().size() == m.size()); |
1129 |
checkFunctionalInvariants(m.keySet()); |
1130 |
checkFunctionalInvariants(m.values()); |
1131 |
check(m.size() != 0 ^ m.isEmpty()); |
1132 |
check(! m.containsKey(ABSENT_VALUE)); |
1133 |
|
1134 |
if (m instanceof Serializable) { |
1135 |
//System.out.printf("Serializing %s%n", m.getClass().getName()); |
1136 |
try { |
1137 |
Object clone = serialClone(m); |
1138 |
check(clone instanceof Serializable); |
1139 |
equal(m, clone); |
1140 |
} catch (Error xxx) { |
1141 |
if (! (xxx.getCause() instanceof NotSerializableException)) |
1142 |
throw xxx; |
1143 |
} |
1144 |
} |
1145 |
} |
1146 |
|
1147 |
private static void testMap(Map<Integer,Integer> m) { |
1148 |
System.out.println("\n==> " + m.getClass().getName()); |
1149 |
|
1150 |
if (m instanceof ConcurrentMap) |
1151 |
testConcurrentMap((ConcurrentMap<Integer,Integer>) m); |
1152 |
|
1153 |
if (m instanceof NavigableMap) { |
1154 |
System.out.println("NavigableMap tests..."); |
1155 |
|
1156 |
NavigableMap<Integer,Integer> nm = |
1157 |
(NavigableMap<Integer,Integer>) m; |
1158 |
testNavigableMapRemovers(nm); |
1159 |
testNavigableMap(nm); |
1160 |
testNavigableMap(nm.headMap(6, false)); |
1161 |
testNavigableMap(nm.headMap(5, true)); |
1162 |
testNavigableMap(nm.tailMap(0, false)); |
1163 |
testNavigableMap(nm.tailMap(1, true)); |
1164 |
testNavigableMap(nm.subMap(1, true, 6, false)); |
1165 |
testNavigableMap(nm.subMap(0, false, 5, true)); |
1166 |
} |
1167 |
|
1168 |
checkFunctionalInvariants(m); |
1169 |
|
1170 |
if (supportsClear(m)) { |
1171 |
try { clear(m); } |
1172 |
catch (Throwable t) { unexpected(t); } |
1173 |
} |
1174 |
|
1175 |
if (supportsPut(m)) { |
1176 |
try { |
1177 |
check(m.put(3333, 77777) == null); |
1178 |
check(m.put(9134, 74982) == null); |
1179 |
check(m.get(9134) == 74982); |
1180 |
check(m.put(9134, 1382) == 74982); |
1181 |
check(m.get(9134) == 1382); |
1182 |
check(m.size() == 2); |
1183 |
checkFunctionalInvariants(m); |
1184 |
checkNPEConsistency(m); |
1185 |
} |
1186 |
catch (Throwable t) { unexpected(t); } |
1187 |
} |
1188 |
} |
1189 |
|
1190 |
private static boolean supportsPut(Map<Integer,Integer> m) { |
1191 |
// We're asking for .equals(...) semantics |
1192 |
if (m instanceof IdentityHashMap) return false; |
1193 |
|
1194 |
try { check(m.put(ABSENT_VALUE,12735) == null); } |
1195 |
catch (UnsupportedOperationException t) { return false; } |
1196 |
catch (Throwable t) { unexpected(t); } |
1197 |
|
1198 |
try { |
1199 |
check(m.containsKey(ABSENT_VALUE)); |
1200 |
check(m.remove(ABSENT_VALUE) != null); |
1201 |
} catch (Throwable t) { unexpected(t); } |
1202 |
return true; |
1203 |
} |
1204 |
|
1205 |
private static boolean supportsClear(Map<?,?> m) { |
1206 |
try { m.clear(); } |
1207 |
catch (UnsupportedOperationException t) { return false; } |
1208 |
catch (Throwable t) { unexpected(t); } |
1209 |
return true; |
1210 |
} |
1211 |
|
1212 |
//---------------------------------------------------------------- |
1213 |
// ConcurrentMap |
1214 |
//---------------------------------------------------------------- |
1215 |
private static void testConcurrentMap(ConcurrentMap<Integer,Integer> m) { |
1216 |
System.out.println("ConcurrentMap tests..."); |
1217 |
|
1218 |
try { |
1219 |
clear(m); |
1220 |
|
1221 |
check(m.putIfAbsent(18357,7346) == null); |
1222 |
check(m.containsKey(18357)); |
1223 |
check(m.putIfAbsent(18357,8263) == 7346); |
1224 |
try { m.putIfAbsent(18357,null); fail("NPE"); } |
1225 |
catch (NullPointerException t) { } |
1226 |
check(m.containsKey(18357)); |
1227 |
|
1228 |
check(! m.replace(18357,8888,7777)); |
1229 |
check(m.containsKey(18357)); |
1230 |
try { m.replace(18357,null,7777); fail("NPE"); } |
1231 |
catch (NullPointerException t) { } |
1232 |
check(m.containsKey(18357)); |
1233 |
check(m.get(18357) == 7346); |
1234 |
check(m.replace(18357,7346,5555)); |
1235 |
check(m.replace(18357,5555,7346)); |
1236 |
check(m.get(18357) == 7346); |
1237 |
|
1238 |
check(m.replace(92347,7834) == null); |
1239 |
try { m.replace(18357,null); fail("NPE"); } |
1240 |
catch (NullPointerException t) { } |
1241 |
check(m.replace(18357,7346) == 7346); |
1242 |
check(m.replace(18357,5555) == 7346); |
1243 |
check(m.get(18357) == 5555); |
1244 |
check(m.replace(18357,7346) == 5555); |
1245 |
check(m.get(18357) == 7346); |
1246 |
|
1247 |
check(! m.remove(18357,9999)); |
1248 |
check(m.get(18357) == 7346); |
1249 |
check(m.containsKey(18357)); |
1250 |
check(! m.remove(18357,null)); // 6272521 |
1251 |
check(m.get(18357) == 7346); |
1252 |
check(m.remove(18357,7346)); |
1253 |
check(m.get(18357) == null); |
1254 |
check(! m.containsKey(18357)); |
1255 |
check(m.isEmpty()); |
1256 |
|
1257 |
m.putIfAbsent(1,2); |
1258 |
check(m.size() == 1); |
1259 |
check(! m.remove(1,null)); |
1260 |
check(! m.remove(1,null)); |
1261 |
check(! m.remove(1,1)); |
1262 |
check(m.remove(1,2)); |
1263 |
check(m.isEmpty()); |
1264 |
|
1265 |
testEmptyMap(m); |
1266 |
} |
1267 |
catch (Throwable t) { unexpected(t); } |
1268 |
} |
1269 |
|
1270 |
private static void throwsConsistently(Class<? extends Throwable> k, |
1271 |
Iterable<Fun> fs) { |
1272 |
List<Class<? extends Throwable>> threw = new ArrayList<>(); |
1273 |
for (Fun f : fs) |
1274 |
try { f.f(); threw.add(null); } |
1275 |
catch (Throwable t) { |
1276 |
check(k.isAssignableFrom(t.getClass())); |
1277 |
threw.add(t.getClass()); |
1278 |
} |
1279 |
if (new HashSet<Object>(threw).size() != 1) |
1280 |
fail(threw.toString()); |
1281 |
} |
1282 |
|
1283 |
private static <T> void checkNPEConsistency(final Map<T,Integer> m) { |
1284 |
m.clear(); |
1285 |
final ConcurrentMap<T,Integer> cm = (m instanceof ConcurrentMap) |
1286 |
? (ConcurrentMap<T,Integer>) m |
1287 |
: null; |
1288 |
List<Fun> fs = new ArrayList<>(); |
1289 |
fs.add(() -> check(! m.containsKey(null))); |
1290 |
fs.add(() -> equal(m.remove(null), null)); |
1291 |
fs.add(() -> equal(m.get(null), null)); |
1292 |
if (cm != null) |
1293 |
fs.add(() -> check(! cm.remove(null,null))); |
1294 |
throwsConsistently(NullPointerException.class, fs); |
1295 |
|
1296 |
fs.clear(); |
1297 |
final Map<T,Integer> sm = singletonMap(null,1); |
1298 |
fs.add(() -> { equal(m.put(null,1), null); m.clear();}); |
1299 |
fs.add(() -> { m.putAll(sm); m.clear();}); |
1300 |
if (cm != null) { |
1301 |
fs.add(() -> check(! cm.remove(null,null))); |
1302 |
fs.add(() -> equal(cm.putIfAbsent(null,1), 1)); |
1303 |
fs.add(() -> equal(cm.replace(null,1), null)); |
1304 |
fs.add(() -> equal(cm.replace(null,1, 1), 1)); |
1305 |
} |
1306 |
throwsConsistently(NullPointerException.class, fs); |
1307 |
} |
1308 |
|
1309 |
//---------------------------------------------------------------- |
1310 |
// NavigableMap |
1311 |
//---------------------------------------------------------------- |
1312 |
private static void |
1313 |
checkNavigableMapKeys(NavigableMap<Integer,Integer> m, |
1314 |
Integer i, |
1315 |
Integer lower, |
1316 |
Integer floor, |
1317 |
Integer ceiling, |
1318 |
Integer higher) { |
1319 |
equal(m.lowerKey(i), lower); |
1320 |
equal(m.floorKey(i), floor); |
1321 |
equal(m.ceilingKey(i), ceiling); |
1322 |
equal(m.higherKey(i), higher); |
1323 |
} |
1324 |
|
1325 |
private static void |
1326 |
checkNavigableSetKeys(NavigableSet<Integer> m, |
1327 |
Integer i, |
1328 |
Integer lower, |
1329 |
Integer floor, |
1330 |
Integer ceiling, |
1331 |
Integer higher) { |
1332 |
equal(m.lower(i), lower); |
1333 |
equal(m.floor(i), floor); |
1334 |
equal(m.ceiling(i), ceiling); |
1335 |
equal(m.higher(i), higher); |
1336 |
} |
1337 |
|
1338 |
static final Random rnd = new Random(); |
1339 |
static void equalNext(final Iterator<?> it, Object expected) { |
1340 |
if (rnd.nextBoolean()) |
1341 |
check(it.hasNext()); |
1342 |
equal(it.next(), expected); |
1343 |
} |
1344 |
|
1345 |
static void equalMaps(Map m1, Map m2) { |
1346 |
equal(m1, m2); |
1347 |
equal(m2, m1); |
1348 |
equal(m1.size(), m2.size()); |
1349 |
equal(m1.isEmpty(), m2.isEmpty()); |
1350 |
equal(m1.toString(), m2.toString()); |
1351 |
check(Arrays.equals(m1.entrySet().toArray(), m2.entrySet().toArray())); |
1352 |
} |
1353 |
|
1354 |
@SuppressWarnings({"unchecked", "rawtypes"}) |
1355 |
static void testNavigableMapRemovers(NavigableMap m) |
1356 |
{ |
1357 |
final Map emptyMap = new HashMap(); |
1358 |
|
1359 |
final Map singletonMap = new HashMap(); |
1360 |
singletonMap.put(1, 2); |
1361 |
|
1362 |
abstract class NavigableMapView { |
1363 |
abstract NavigableMap view(NavigableMap m); |
1364 |
} |
1365 |
|
1366 |
NavigableMapView[] views = { |
1367 |
new NavigableMapView() { NavigableMap view(NavigableMap m) { |
1368 |
return m; }}, |
1369 |
new NavigableMapView() { NavigableMap view(NavigableMap m) { |
1370 |
return m.headMap(99, true); }}, |
1371 |
new NavigableMapView() { NavigableMap view(NavigableMap m) { |
1372 |
return m.tailMap(-99, false); }}, |
1373 |
new NavigableMapView() { NavigableMap view(NavigableMap m) { |
1374 |
return m.subMap(-99, true, 99, false); }}, |
1375 |
}; |
1376 |
|
1377 |
abstract class Remover { |
1378 |
abstract void remove(NavigableMap m, Object k, Object v); |
1379 |
} |
1380 |
|
1381 |
Remover[] removers = { |
1382 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1383 |
equal(m.remove(k), v); }}, |
1384 |
|
1385 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1386 |
equal(m.descendingMap().remove(k), v); }}, |
1387 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1388 |
equal(m.descendingMap().headMap(-86, false).remove(k), v); }}, |
1389 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1390 |
equal(m.descendingMap().tailMap(86, true).remove(k), v); }}, |
1391 |
|
1392 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1393 |
equal(m.headMap(86, true).remove(k), v); }}, |
1394 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1395 |
equal(m.tailMap(-86, true).remove(k), v); }}, |
1396 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1397 |
equal(m.subMap(-86, false, 86, true).remove(k), v); }}, |
1398 |
|
1399 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1400 |
check(m.keySet().remove(k)); }}, |
1401 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1402 |
check(m.navigableKeySet().remove(k)); }}, |
1403 |
|
1404 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1405 |
check(m.navigableKeySet().headSet(86, true).remove(k)); }}, |
1406 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1407 |
check(m.navigableKeySet().tailSet(-86, false).remove(k)); }}, |
1408 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1409 |
check(m.navigableKeySet().subSet(-86, true, 86, false) |
1410 |
.remove(k)); }}, |
1411 |
|
1412 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1413 |
check(m.descendingKeySet().headSet(-86, false).remove(k)); }}, |
1414 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1415 |
check(m.descendingKeySet().tailSet(86, true).remove(k)); }}, |
1416 |
new Remover() { void remove(NavigableMap m, Object k, Object v) { |
1417 |
check(m.descendingKeySet().subSet(86, true, -86, false) |
1418 |
.remove(k)); }}, |
1419 |
}; |
1420 |
|
1421 |
for (NavigableMapView view : views) { |
1422 |
for (Remover remover : removers) { |
1423 |
try { |
1424 |
m.clear(); |
1425 |
equalMaps(m, emptyMap); |
1426 |
equal(m.put(1, 2), null); |
1427 |
equalMaps(m, singletonMap); |
1428 |
NavigableMap v = view.view(m); |
1429 |
remover.remove(v, 1, 2); |
1430 |
equalMaps(m, emptyMap); |
1431 |
} catch (Throwable t) { unexpected(t); } |
1432 |
} |
1433 |
} |
1434 |
} |
1435 |
|
1436 |
private static void testNavigableMap(NavigableMap<Integer,Integer> m) |
1437 |
{ |
1438 |
clear(m); |
1439 |
checkNavigableMapKeys(m, 1, null, null, null, null); |
1440 |
|
1441 |
equal(m.put(1, 2), null); |
1442 |
equal(m.put(3, 4), null); |
1443 |
equal(m.put(5, 9), null); |
1444 |
|
1445 |
equal(m.put(1, 2), 2); |
1446 |
equal(m.put(3, 4), 4); |
1447 |
equal(m.put(5, 6), 9); |
1448 |
|
1449 |
checkNavigableMapKeys(m, 0, null, null, 1, 1); |
1450 |
checkNavigableMapKeys(m, 1, null, 1, 1, 3); |
1451 |
checkNavigableMapKeys(m, 2, 1, 1, 3, 3); |
1452 |
checkNavigableMapKeys(m, 3, 1, 3, 3, 5); |
1453 |
checkNavigableMapKeys(m, 5, 3, 5, 5, null); |
1454 |
checkNavigableMapKeys(m, 6, 5, 5, null, null); |
1455 |
|
1456 |
for (final Iterator<Integer> it : |
1457 |
(Iterator<Integer>[]) |
1458 |
new Iterator<?>[] { |
1459 |
m.descendingKeySet().iterator(), |
1460 |
m.navigableKeySet().descendingIterator()}) { |
1461 |
equalNext(it, 5); |
1462 |
equalNext(it, 3); |
1463 |
equalNext(it, 1); |
1464 |
check(! it.hasNext()); |
1465 |
THROWS(NoSuchElementException.class, () -> it.next()); |
1466 |
} |
1467 |
|
1468 |
{ |
1469 |
final Iterator<Map.Entry<Integer,Integer>> it |
1470 |
= m.descendingMap().entrySet().iterator(); |
1471 |
check(it.hasNext()); equal(it.next().getKey(), 5); |
1472 |
check(it.hasNext()); equal(it.next().getKey(), 3); |
1473 |
check(it.hasNext()); equal(it.next().getKey(), 1); |
1474 |
check(! it.hasNext()); |
1475 |
THROWS(NoSuchElementException.class, () -> it.next()); |
1476 |
} |
1477 |
|
1478 |
prepMapForDescItrTests(m); |
1479 |
checkDescItrRmFirst(m.keySet(), m.navigableKeySet().descendingIterator()); |
1480 |
prepMapForDescItrTests(m); |
1481 |
checkDescItrRmMid(m.keySet(), m.navigableKeySet().descendingIterator()); |
1482 |
prepMapForDescItrTests(m); |
1483 |
checkDescItrRmLast(m.keySet(), m.navigableKeySet().descendingIterator()); |
1484 |
|
1485 |
prepMapForDescItrTests(m); |
1486 |
checkDescItrRmFirst(m.keySet(), m.descendingMap().keySet().iterator()); |
1487 |
prepMapForDescItrTests(m); |
1488 |
checkDescItrRmMid(m.keySet(), m.descendingMap().keySet().iterator()); |
1489 |
prepMapForDescItrTests(m); |
1490 |
checkDescItrRmLast(m.keySet(), m.descendingMap().keySet().iterator()); |
1491 |
|
1492 |
prepMapForDescItrTests(m); |
1493 |
checkDescItrRmFirst(m.keySet(), m.descendingKeySet().iterator()); |
1494 |
prepMapForDescItrTests(m); |
1495 |
checkDescItrRmMid(m.keySet(), m.descendingKeySet().iterator()); |
1496 |
prepMapForDescItrTests(m); |
1497 |
checkDescItrRmLast(m.keySet(), m.descendingKeySet().iterator()); |
1498 |
|
1499 |
prepMapForDescItrTests(m); |
1500 |
checkDescItrRmFirst(m.values(), m.descendingMap().values().iterator()); |
1501 |
prepMapForDescItrTests(m); |
1502 |
checkDescItrRmMid(m.values(), m.descendingMap().values().iterator()); |
1503 |
prepMapForDescItrTests(m); |
1504 |
checkDescItrRmLast(m.values(), m.descendingMap().values().iterator()); |
1505 |
|
1506 |
prepMapForDescItrTests(m); |
1507 |
checkDescItrRmFirst((Collection)m.entrySet(), |
1508 |
m.descendingMap().entrySet().iterator()); |
1509 |
prepMapForDescItrTests(m); |
1510 |
checkDescItrRmMid((Collection)m.entrySet(), |
1511 |
m.descendingMap().entrySet().iterator()); |
1512 |
prepMapForDescItrTests(m); |
1513 |
checkDescItrRmLast((Collection)m.entrySet(), |
1514 |
m.descendingMap().entrySet().iterator()); |
1515 |
} |
1516 |
|
1517 |
private static void testNavigableSet(NavigableSet<Integer> s) { |
1518 |
clear(s); |
1519 |
checkNavigableSetKeys(s, 1, null, null, null, null); |
1520 |
|
1521 |
check(s.add(1)); |
1522 |
check(s.add(3)); |
1523 |
check(s.add(5)); |
1524 |
|
1525 |
check(! s.add(1)); |
1526 |
check(! s.add(3)); |
1527 |
check(! s.add(5)); |
1528 |
|
1529 |
checkNavigableSetKeys(s, 0, null, null, 1, 1); |
1530 |
checkNavigableSetKeys(s, 1, null, 1, 1, 3); |
1531 |
checkNavigableSetKeys(s, 2, 1, 1, 3, 3); |
1532 |
checkNavigableSetKeys(s, 3, 1, 3, 3, 5); |
1533 |
checkNavigableSetKeys(s, 5, 3, 5, 5, null); |
1534 |
checkNavigableSetKeys(s, 6, 5, 5, null, null); |
1535 |
|
1536 |
for (final Iterator<Integer> it : |
1537 |
(Iterator<Integer>[]) |
1538 |
new Iterator<?>[] { |
1539 |
s.descendingIterator(), |
1540 |
s.descendingSet().iterator()}) { |
1541 |
equalNext(it, 5); |
1542 |
equalNext(it, 3); |
1543 |
equalNext(it, 1); |
1544 |
check(! it.hasNext()); |
1545 |
THROWS(NoSuchElementException.class, () -> it.next()); |
1546 |
} |
1547 |
|
1548 |
prepSetForDescItrTests(s); |
1549 |
checkDescItrRmFirst(s, s.descendingIterator()); |
1550 |
prepSetForDescItrTests(s); |
1551 |
checkDescItrRmMid(s, s.descendingIterator()); |
1552 |
prepSetForDescItrTests(s); |
1553 |
checkDescItrRmLast(s, s.descendingIterator()); |
1554 |
|
1555 |
prepSetForDescItrTests(s); |
1556 |
checkDescItrRmFirst(s, s.descendingSet().iterator()); |
1557 |
prepSetForDescItrTests(s); |
1558 |
checkDescItrRmMid(s, s.descendingSet().iterator()); |
1559 |
prepSetForDescItrTests(s); |
1560 |
checkDescItrRmLast(s, s.descendingSet().iterator()); |
1561 |
} |
1562 |
|
1563 |
private static void prepSetForDescItrTests(Set s) { |
1564 |
clear(s); |
1565 |
check(s.add(1)); |
1566 |
check(s.add(3)); |
1567 |
check(s.add(5)); |
1568 |
} |
1569 |
|
1570 |
private static void prepMapForDescItrTests(Map m) { |
1571 |
clear(m); |
1572 |
equal(m.put(1, 2), null); |
1573 |
equal(m.put(3, 4), null); |
1574 |
equal(m.put(5, 9), null); |
1575 |
} |
1576 |
|
1577 |
//-------------------------------------------------------------------- |
1578 |
// Check behavior of descending iterator when first element is removed |
1579 |
//-------------------------------------------------------------------- |
1580 |
private static <T> void checkDescItrRmFirst(Collection<T> ascColl, |
1581 |
Iterator<T> descItr) { |
1582 |
T[] expected = (T[]) ascColl.toArray(); |
1583 |
int idx = expected.length -1; |
1584 |
|
1585 |
equalNext(descItr, expected[idx--]); |
1586 |
descItr.remove(); |
1587 |
while (idx >= 0 && descItr.hasNext()) { |
1588 |
equalNext(descItr, expected[idx--]); |
1589 |
} |
1590 |
equal(descItr.hasNext(), false); |
1591 |
equal(idx, -1); |
1592 |
} |
1593 |
|
1594 |
//----------------------------------------------------------------------- |
1595 |
// Check behavior of descending iterator when a middle element is removed |
1596 |
//----------------------------------------------------------------------- |
1597 |
private static <T> void checkDescItrRmMid(Collection<T> ascColl, |
1598 |
Iterator<T> descItr) { |
1599 |
T[] expected = (T[]) ascColl.toArray(); |
1600 |
int idx = expected.length -1; |
1601 |
|
1602 |
while (idx >= expected.length / 2) { |
1603 |
equalNext(descItr, expected[idx--]); |
1604 |
} |
1605 |
descItr.remove(); |
1606 |
while (idx >= 0 && descItr.hasNext()) { |
1607 |
equalNext(descItr, expected[idx--]); |
1608 |
} |
1609 |
equal(descItr.hasNext(), false); |
1610 |
equal(idx, -1); |
1611 |
} |
1612 |
|
1613 |
//----------------------------------------------------------------------- |
1614 |
// Check behavior of descending iterator when the last element is removed |
1615 |
//----------------------------------------------------------------------- |
1616 |
private static <T> void checkDescItrRmLast(Collection<T> ascColl, |
1617 |
Iterator<T> descItr) { |
1618 |
T[] expected = (T[]) ascColl.toArray(); |
1619 |
int idx = expected.length -1; |
1620 |
|
1621 |
while (idx >= 0 && descItr.hasNext()) { |
1622 |
equalNext(descItr, expected[idx--]); |
1623 |
} |
1624 |
equal(idx, -1); |
1625 |
equal(descItr.hasNext(), false); |
1626 |
descItr.remove(); |
1627 |
equal(ascColl.contains(expected[0]), false); |
1628 |
} |
1629 |
|
1630 |
//--------------------- Infrastructure --------------------------- |
1631 |
static volatile int passed = 0, failed = 0; |
1632 |
static void pass() { passed++; } |
1633 |
static void fail() { failed++; Thread.dumpStack(); } |
1634 |
static void fail(String msg) { System.out.println(msg); fail(); } |
1635 |
static void unexpected(Throwable t) { failed++; t.printStackTrace(); } |
1636 |
static void check(boolean cond) { if (cond) pass(); else fail(); } |
1637 |
static void equal(Object x, Object y) { |
1638 |
if (x == null ? y == null : x.equals(y)) pass(); |
1639 |
else {System.out.println(x + " not equal to " + y); fail();}} |
1640 |
static void equal2(Object x, Object y) {equal(x, y); equal(y, x);} |
1641 |
public static void main(String[] args) throws Throwable { |
1642 |
try { realMain(args); } catch (Throwable t) { unexpected(t); } |
1643 |
|
1644 |
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed); |
1645 |
if (failed > 0) throw new Exception("Some tests failed"); |
1646 |
} |
1647 |
interface Fun {void f() throws Throwable;} |
1648 |
private static void THROWS(Class<? extends Throwable> k, Fun... fs) { |
1649 |
for (Fun f : fs) |
1650 |
try { f.f(); fail("Expected " + k.getName() + " not thrown"); } |
1651 |
catch (Throwable t) { |
1652 |
if (k.isAssignableFrom(t.getClass())) pass(); |
1653 |
else unexpected(t);}} |
1654 |
static byte[] serializedForm(Object obj) { |
1655 |
try { |
1656 |
ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
1657 |
new ObjectOutputStream(baos).writeObject(obj); |
1658 |
return baos.toByteArray(); |
1659 |
} catch (IOException e) { throw new Error(e); }} |
1660 |
static Object readObject(byte[] bytes) |
1661 |
throws IOException, ClassNotFoundException { |
1662 |
InputStream is = new ByteArrayInputStream(bytes); |
1663 |
return new ObjectInputStream(is).readObject();} |
1664 |
@SuppressWarnings("unchecked") |
1665 |
static <T> T serialClone(T obj) { |
1666 |
try { return (T) readObject(serializedForm(obj)); } |
1667 |
catch (Exception e) { throw new Error(e); }} |
1668 |
private static class NewAbstractCollection<E> extends AbstractCollection<E> { |
1669 |
ArrayList<E> list = new ArrayList<>(); |
1670 |
public boolean remove(Object obj) { |
1671 |
return list.remove(obj); |
1672 |
} |
1673 |
public boolean add(E e) { |
1674 |
return list.add(e); |
1675 |
} |
1676 |
public Iterator<E> iterator() { |
1677 |
return list.iterator(); |
1678 |
} |
1679 |
public int size() { |
1680 |
return list.size(); |
1681 |
} |
1682 |
} |
1683 |
private static class NewAbstractSet<E> extends AbstractSet<E> { |
1684 |
HashSet<E> set = new HashSet<>(); |
1685 |
public boolean remove(Object obj) { |
1686 |
return set.remove(obj); |
1687 |
} |
1688 |
public boolean add(E e) { |
1689 |
return set.add(e); |
1690 |
} |
1691 |
public Iterator<E> iterator() { |
1692 |
return set.iterator(); |
1693 |
} |
1694 |
public int size() { |
1695 |
return set.size(); |
1696 |
} |
1697 |
} |
1698 |
|
1699 |
} |