| /* |
| * Copyright (C) 2007 The Guava Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.google.common.collect; |
| |
| import static java.util.Arrays.asList; |
| |
| import com.google.common.annotations.GwtCompatible; |
| import com.google.common.annotations.GwtIncompatible; |
| import com.google.common.collect.testing.features.CollectionFeature; |
| import com.google.common.collect.testing.features.CollectionSize; |
| import com.google.common.collect.testing.google.MultisetFeature; |
| import com.google.common.collect.testing.google.MultisetTestSuiteBuilder; |
| import com.google.common.collect.testing.google.TestStringMultisetGenerator; |
| import com.google.common.testing.SerializableTester; |
| |
| import junit.framework.Test; |
| import junit.framework.TestCase; |
| import junit.framework.TestSuite; |
| |
| import java.io.Serializable; |
| import java.util.Arrays; |
| |
| /** |
| * Unit test for {@link HashMultiset}. |
| * |
| * @author Kevin Bourrillion |
| * @author Jared Levy |
| */ |
| @GwtCompatible(emulated = true) |
| public class HashMultisetTest extends TestCase { |
| |
| @GwtIncompatible("suite") |
| public static Test suite() { |
| TestSuite suite = new TestSuite(); |
| suite.addTest(MultisetTestSuiteBuilder.using(hashMultisetGenerator()) |
| .withFeatures(CollectionSize.ANY, |
| CollectionFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION, |
| CollectionFeature.ALLOWS_NULL_VALUES, |
| CollectionFeature.SERIALIZABLE, |
| CollectionFeature.GENERAL_PURPOSE, |
| MultisetFeature.ENTRIES_ARE_VIEWS) |
| .named("HashMultiset") |
| .createTestSuite()); |
| suite.addTestSuite(HashMultisetTest.class); |
| return suite; |
| } |
| |
| private static TestStringMultisetGenerator hashMultisetGenerator() { |
| return new TestStringMultisetGenerator() { |
| @Override protected Multiset<String> create(String[] elements) { |
| return HashMultiset.create(asList(elements)); |
| } |
| }; |
| } |
| |
| public void testCreate() { |
| Multiset<String> multiset = HashMultiset.create(); |
| multiset.add("foo", 2); |
| multiset.add("bar"); |
| assertEquals(3, multiset.size()); |
| assertEquals(2, multiset.count("foo")); |
| } |
| |
| public void testCreateWithSize() { |
| Multiset<String> multiset = HashMultiset.create(50); |
| multiset.add("foo", 2); |
| multiset.add("bar"); |
| assertEquals(3, multiset.size()); |
| assertEquals(2, multiset.count("foo")); |
| } |
| |
| public void testCreateFromIterable() { |
| Multiset<String> multiset |
| = HashMultiset.create(Arrays.asList("foo", "bar", "foo")); |
| assertEquals(3, multiset.size()); |
| assertEquals(2, multiset.count("foo")); |
| } |
| |
| @GwtIncompatible("SerializableTester") |
| public void testSerializationContainingSelf() { |
| Multiset<Multiset<?>> multiset = HashMultiset.create(); |
| multiset.add(multiset, 2); |
| Multiset<Multiset<?>> copy = SerializableTester.reserialize(multiset); |
| assertEquals(2, copy.size()); |
| assertSame(copy, copy.iterator().next()); |
| } |
| |
| @GwtIncompatible("Only used by @GwtIncompatible code") |
| private static class MultisetHolder implements Serializable { |
| public Multiset<?> member; |
| MultisetHolder(Multiset<?> multiset) { |
| this.member = multiset; |
| } |
| private static final long serialVersionUID = 1L; |
| } |
| |
| @GwtIncompatible("SerializableTester") |
| public void testSerializationIndirectSelfReference() { |
| Multiset<MultisetHolder> multiset = HashMultiset.create(); |
| MultisetHolder holder = new MultisetHolder(multiset); |
| multiset.add(holder, 2); |
| Multiset<MultisetHolder> copy = SerializableTester.reserialize(multiset); |
| assertEquals(2, copy.size()); |
| assertSame(copy, copy.iterator().next().member); |
| } |
| |
| /* |
| * The behavior of toString() and iteration is tested by LinkedHashMultiset, |
| * which shares a lot of code with HashMultiset and has deterministic |
| * iteration order. |
| */ |
| } |