161 lines
5.5 KiB
Java
161 lines
5.5 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.base.Preconditions.checkArgument;
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import com.google.common.collect.Synchronized.SynchronizedBiMap;
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import com.google.common.collect.Synchronized.SynchronizedSet;
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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.BiMapInverseTester;
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import com.google.common.collect.testing.google.BiMapTestSuiteBuilder;
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import com.google.common.collect.testing.google.TestStringBiMapGenerator;
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import java.util.Map.Entry;
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import java.util.Set;
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import java.util.function.BiFunction;
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import junit.framework.TestSuite;
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/**
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* Tests for {@code Synchronized#biMap}.
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*
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* @author Mike Bostock
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*/
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public class SynchronizedBiMapTest extends SynchronizedMapTest {
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public static TestSuite suite() {
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TestSuite suite = new TestSuite(SynchronizedBiMapTest.class);
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suite.addTest(
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BiMapTestSuiteBuilder.using(new SynchTestingBiMapGenerator())
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.named("Synchronized.biMap[TestBiMap]")
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.withFeatures(
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CollectionSize.ANY,
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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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MapFeature.GENERAL_PURPOSE,
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MapFeature.REJECTS_DUPLICATES_AT_CREATION)
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.createTestSuite());
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suite.addTest(
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BiMapTestSuiteBuilder.using(new SynchronizedHashBiMapGenerator())
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.named("synchronizedBiMap[HashBiMap]")
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.withFeatures(
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CollectionSize.ANY,
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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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MapFeature.GENERAL_PURPOSE,
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MapFeature.REJECTS_DUPLICATES_AT_CREATION,
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CollectionFeature.SERIALIZABLE)
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.suppressing(BiMapInverseTester.getInverseSameAfterSerializingMethods())
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.createTestSuite());
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return suite;
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}
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@Override
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protected <K, V> BiMap<K, V> create() {
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TestBiMap<K, V> inner = new TestBiMap<>(HashBiMap.<K, V>create(), mutex);
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BiMap<K, V> outer = Synchronized.biMap(inner, mutex);
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return outer;
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}
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public static final class SynchronizedHashBiMapGenerator extends TestStringBiMapGenerator {
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@Override
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protected BiMap<String, String> create(Entry<String, String>[] entries) {
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Object mutex = new Object();
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BiMap<String, String> result = HashBiMap.create();
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for (Entry<String, String> entry : entries) {
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checkArgument(!result.containsKey(entry.getKey()));
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result.put(entry.getKey(), entry.getValue());
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}
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return Maps.synchronizedBiMap(result);
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}
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}
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public static final class SynchTestingBiMapGenerator extends TestStringBiMapGenerator {
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@Override
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protected BiMap<String, String> create(Entry<String, String>[] entries) {
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Object mutex = new Object();
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BiMap<String, String> backing = new TestBiMap<>(HashBiMap.<String, String>create(), mutex);
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BiMap<String, String> result = Synchronized.biMap(backing, mutex);
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for (Entry<String, String> entry : entries) {
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checkArgument(!result.containsKey(entry.getKey()));
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result.put(entry.getKey(), entry.getValue());
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}
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return result;
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}
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}
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static class TestBiMap<K, V> extends TestMap<K, V> implements BiMap<K, V> {
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private final BiMap<K, V> delegate;
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public TestBiMap(BiMap<K, V> delegate, Object mutex) {
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super(delegate, mutex);
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this.delegate = delegate;
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}
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@Override
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public V forcePut(K key, V value) {
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assertTrue(Thread.holdsLock(mutex));
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return delegate.forcePut(key, value);
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}
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@Override
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public BiMap<V, K> inverse() {
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assertTrue(Thread.holdsLock(mutex));
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return delegate.inverse();
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}
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@Override
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public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
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assertTrue(Thread.holdsLock(mutex));
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delegate.replaceAll(function);
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}
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@Override
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public Set<V> values() {
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assertTrue(Thread.holdsLock(mutex));
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return delegate.values();
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}
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private static final long serialVersionUID = 0;
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}
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public void testForcePut() {
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create().forcePut(null, null);
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}
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public void testInverse() {
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BiMap<String, Integer> bimap = create();
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BiMap<Integer, String> inverse = bimap.inverse();
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assertSame(bimap, inverse.inverse());
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assertTrue(inverse instanceof SynchronizedBiMap);
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assertSame(mutex, ((SynchronizedBiMap<?, ?>) inverse).mutex);
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}
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@Override
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public void testValues() {
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BiMap<String, Integer> map = create();
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Set<Integer> values = map.values();
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assertTrue(values instanceof SynchronizedSet);
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assertSame(mutex, ((SynchronizedSet<?>) values).mutex);
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}
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}
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