129 lines
4.3 KiB
Java
129 lines
4.3 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 java.util.Arrays.asList;
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import com.google.common.annotations.GwtCompatible;
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import com.google.common.annotations.GwtIncompatible;
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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.google.MultisetFeature;
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import com.google.common.collect.testing.google.MultisetTestSuiteBuilder;
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import com.google.common.collect.testing.google.TestStringMultisetGenerator;
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import com.google.common.testing.SerializableTester;
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import java.io.Serializable;
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import java.util.Arrays;
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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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/**
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* Unit test for {@link HashMultiset}.
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*
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* @author Kevin Bourrillion
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* @author Jared Levy
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*/
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@GwtCompatible(emulated = true)
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public class HashMultisetTest extends TestCase {
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@GwtIncompatible // suite
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public static Test suite() {
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TestSuite suite = new TestSuite();
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suite.addTest(
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MultisetTestSuiteBuilder.using(hashMultisetGenerator())
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.withFeatures(
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CollectionSize.ANY,
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CollectionFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
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CollectionFeature.ALLOWS_NULL_VALUES,
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CollectionFeature.SERIALIZABLE,
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CollectionFeature.GENERAL_PURPOSE,
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MultisetFeature.ENTRIES_ARE_VIEWS)
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.named("HashMultiset")
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.createTestSuite());
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suite.addTestSuite(HashMultisetTest.class);
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return suite;
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}
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private static TestStringMultisetGenerator hashMultisetGenerator() {
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return new TestStringMultisetGenerator() {
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@Override
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protected Multiset<String> create(String[] elements) {
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return HashMultiset.create(asList(elements));
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}
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};
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}
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public void testCreate() {
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Multiset<String> multiset = HashMultiset.create();
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multiset.add("foo", 2);
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multiset.add("bar");
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assertEquals(3, multiset.size());
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assertEquals(2, multiset.count("foo"));
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}
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public void testCreateWithSize() {
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Multiset<String> multiset = HashMultiset.create(50);
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multiset.add("foo", 2);
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multiset.add("bar");
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assertEquals(3, multiset.size());
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assertEquals(2, multiset.count("foo"));
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}
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public void testCreateFromIterable() {
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Multiset<String> multiset = HashMultiset.create(Arrays.asList("foo", "bar", "foo"));
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assertEquals(3, multiset.size());
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assertEquals(2, multiset.count("foo"));
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}
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@GwtIncompatible // SerializableTester
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public void testSerializationContainingSelf() {
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Multiset<Multiset<?>> multiset = HashMultiset.create();
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multiset.add(multiset, 2);
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Multiset<Multiset<?>> copy = SerializableTester.reserialize(multiset);
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assertEquals(2, copy.size());
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assertSame(copy, copy.iterator().next());
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}
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@GwtIncompatible // Only used by @GwtIncompatible code
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private static class MultisetHolder implements Serializable {
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public Multiset<?> member;
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MultisetHolder(Multiset<?> multiset) {
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this.member = multiset;
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}
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private static final long serialVersionUID = 1L;
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}
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@GwtIncompatible // SerializableTester
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public void testSerializationIndirectSelfReference() {
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Multiset<MultisetHolder> multiset = HashMultiset.create();
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MultisetHolder holder = new MultisetHolder(multiset);
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multiset.add(holder, 2);
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Multiset<MultisetHolder> copy = SerializableTester.reserialize(multiset);
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assertEquals(2, copy.size());
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assertSame(copy, copy.iterator().next().member);
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}
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/*
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* The behavior of toString() and iteration is tested by LinkedHashMultiset,
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* which shares a lot of code with HashMultiset and has deterministic
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* iteration order.
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*/
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}
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