264 lines
8.5 KiB
Java
264 lines
8.5 KiB
Java
/*
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* Copyright (C) 2007 The Guava Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.common.collect;
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import static com.google.common.truth.Truth.assertThat;
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import com.google.common.collect.testing.features.CollectionFeature;
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import com.google.common.collect.testing.features.CollectionSize;
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import com.google.common.collect.testing.features.MapFeature;
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import com.google.common.collect.testing.google.SetMultimapTestSuiteBuilder;
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import com.google.common.collect.testing.google.TestStringSetMultimapGenerator;
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import java.io.Serializable;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.RandomAccess;
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import java.util.Set;
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import junit.framework.Test;
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import junit.framework.TestCase;
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import junit.framework.TestSuite;
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import org.checkerframework.checker.nullness.qual.Nullable;
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/**
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* Tests for {@code Synchronized#multimap}.
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*
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* @author Mike Bostock
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*/
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public class SynchronizedMultimapTest extends TestCase {
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public static Test suite() {
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TestSuite suite = new TestSuite();
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suite.addTestSuite(SynchronizedMultimapTest.class);
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suite.addTest(
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SetMultimapTestSuiteBuilder.using(
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new TestStringSetMultimapGenerator() {
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@Override
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protected SetMultimap<String, String> create(Entry<String, String>[] entries) {
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TestMultimap<String, String> inner = new TestMultimap<>();
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SetMultimap<String, String> outer =
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Synchronized.setMultimap(inner, inner.mutex);
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for (Entry<String, String> entry : entries) {
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outer.put(entry.getKey(), entry.getValue());
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}
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return outer;
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}
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})
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.named("Synchronized.setMultimap")
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.withFeatures(
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MapFeature.GENERAL_PURPOSE,
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CollectionSize.ANY,
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CollectionFeature.SERIALIZABLE,
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CollectionFeature.SUPPORTS_ITERATOR_REMOVE,
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MapFeature.ALLOWS_NULL_KEYS,
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MapFeature.ALLOWS_NULL_VALUES,
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MapFeature.ALLOWS_ANY_NULL_QUERIES)
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.createTestSuite());
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return suite;
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}
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private static final class TestMultimap<K, V> extends ForwardingSetMultimap<K, V>
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implements Serializable {
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final SetMultimap<K, V> delegate = HashMultimap.create();
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public final Object mutex = new Integer(1); // something Serializable
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@Override
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protected SetMultimap<K, V> delegate() {
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return delegate;
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}
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@Override
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public String toString() {
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assertTrue(Thread.holdsLock(mutex));
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return super.toString();
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}
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@Override
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public boolean equals(@Nullable Object o) {
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assertTrue(Thread.holdsLock(mutex));
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return super.equals(o);
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}
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@Override
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public int hashCode() {
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assertTrue(Thread.holdsLock(mutex));
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return super.hashCode();
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}
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@Override
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public int size() {
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assertTrue(Thread.holdsLock(mutex));
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return super.size();
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}
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@Override
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public boolean isEmpty() {
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assertTrue(Thread.holdsLock(mutex));
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return super.isEmpty();
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}
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@Override
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public boolean containsKey(@Nullable Object key) {
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assertTrue(Thread.holdsLock(mutex));
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return super.containsKey(key);
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}
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@Override
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public boolean containsValue(@Nullable Object value) {
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assertTrue(Thread.holdsLock(mutex));
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return super.containsValue(value);
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}
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@Override
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public boolean containsEntry(@Nullable Object key, @Nullable Object value) {
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assertTrue(Thread.holdsLock(mutex));
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return super.containsEntry(key, value);
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}
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@Override
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public Set<V> get(@Nullable K key) {
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assertTrue(Thread.holdsLock(mutex));
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/* TODO: verify that the Collection is also synchronized? */
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return super.get(key);
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}
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@Override
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public boolean put(K key, V value) {
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assertTrue(Thread.holdsLock(mutex));
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return super.put(key, value);
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}
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@Override
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public boolean putAll(@Nullable K key, Iterable<? extends V> values) {
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assertTrue(Thread.holdsLock(mutex));
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return super.putAll(key, values);
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}
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@Override
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public boolean putAll(Multimap<? extends K, ? extends V> map) {
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assertTrue(Thread.holdsLock(mutex));
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return super.putAll(map);
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}
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@Override
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public Set<V> replaceValues(@Nullable K key, Iterable<? extends V> values) {
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assertTrue(Thread.holdsLock(mutex));
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return super.replaceValues(key, values);
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}
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@Override
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public boolean remove(@Nullable Object key, @Nullable Object value) {
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assertTrue(Thread.holdsLock(mutex));
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return super.remove(key, value);
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}
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@Override
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public Set<V> removeAll(@Nullable Object key) {
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assertTrue(Thread.holdsLock(mutex));
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return super.removeAll(key);
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}
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@Override
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public void clear() {
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assertTrue(Thread.holdsLock(mutex));
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super.clear();
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}
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@Override
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public Set<K> keySet() {
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assertTrue(Thread.holdsLock(mutex));
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/* TODO: verify that the Set is also synchronized? */
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return super.keySet();
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}
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@Override
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public Multiset<K> keys() {
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assertTrue(Thread.holdsLock(mutex));
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/* TODO: verify that the Set is also synchronized? */
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return super.keys();
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}
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@Override
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public Collection<V> values() {
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assertTrue(Thread.holdsLock(mutex));
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/* TODO: verify that the Collection is also synchronized? */
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return super.values();
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}
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@Override
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public Set<Entry<K, V>> entries() {
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assertTrue(Thread.holdsLock(mutex));
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/* TODO: verify that the Collection is also synchronized? */
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return super.entries();
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}
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@Override
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public Map<K, Collection<V>> asMap() {
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assertTrue(Thread.holdsLock(mutex));
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/* TODO: verify that the Map is also synchronized? */
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return super.asMap();
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}
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private static final long serialVersionUID = 0;
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}
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public void testSynchronizedListMultimap() {
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ListMultimap<String, Integer> multimap =
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Multimaps.synchronizedListMultimap(ArrayListMultimap.<String, Integer>create());
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multimap.putAll("foo", Arrays.asList(3, -1, 2, 4, 1));
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multimap.putAll("bar", Arrays.asList(1, 2, 3, 1));
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assertThat(multimap.removeAll("foo")).containsExactly(3, -1, 2, 4, 1).inOrder();
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assertFalse(multimap.containsKey("foo"));
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assertThat(multimap.replaceValues("bar", Arrays.asList(6, 5)))
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.containsExactly(1, 2, 3, 1)
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.inOrder();
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assertThat(multimap.get("bar")).containsExactly(6, 5).inOrder();
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}
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public void testSynchronizedSortedSetMultimap() {
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SortedSetMultimap<String, Integer> multimap =
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Multimaps.synchronizedSortedSetMultimap(TreeMultimap.<String, Integer>create());
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multimap.putAll("foo", Arrays.asList(3, -1, 2, 4, 1));
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multimap.putAll("bar", Arrays.asList(1, 2, 3, 1));
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assertThat(multimap.removeAll("foo")).containsExactly(-1, 1, 2, 3, 4).inOrder();
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assertFalse(multimap.containsKey("foo"));
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assertThat(multimap.replaceValues("bar", Arrays.asList(6, 5)))
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.containsExactly(1, 2, 3)
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.inOrder();
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assertThat(multimap.get("bar")).containsExactly(5, 6).inOrder();
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}
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public void testSynchronizedArrayListMultimapRandomAccess() {
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ListMultimap<String, Integer> delegate = ArrayListMultimap.create();
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delegate.put("foo", 1);
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delegate.put("foo", 3);
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ListMultimap<String, Integer> multimap = Multimaps.synchronizedListMultimap(delegate);
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assertTrue(multimap.get("foo") instanceof RandomAccess);
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assertTrue(multimap.get("bar") instanceof RandomAccess);
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}
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public void testSynchronizedLinkedListMultimapRandomAccess() {
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ListMultimap<String, Integer> delegate = LinkedListMultimap.create();
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delegate.put("foo", 1);
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delegate.put("foo", 3);
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ListMultimap<String, Integer> multimap = Multimaps.synchronizedListMultimap(delegate);
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assertFalse(multimap.get("foo") instanceof RandomAccess);
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assertFalse(multimap.get("bar") instanceof RandomAccess);
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}
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}
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