1 /* 2 * Copyright (C) 2007 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.collect; 18 19 import com.google.common.annotations.GwtCompatible; 20 import com.google.common.annotations.GwtIncompatible; 21 import com.google.common.testing.SerializableTester; 22 23 import java.io.Serializable; 24 import java.util.Arrays; 25 26 /** 27 * Unit test for {@link HashMultiset}. 28 * 29 * @author Kevin Bourrillion 30 * @author Jared Levy 31 */ 32 @GwtCompatible(emulated = true) 33 public class HashMultisetTest extends AbstractMultisetTest { create()34 @Override protected <E> Multiset<E> create() { 35 return HashMultiset.create(); 36 } 37 testCreate()38 public void testCreate() { 39 Multiset<String> multiset = HashMultiset.create(); 40 multiset.add("foo", 2); 41 multiset.add("bar"); 42 assertEquals(3, multiset.size()); 43 assertEquals(2, multiset.count("foo")); 44 } 45 testCreateWithSize()46 public void testCreateWithSize() { 47 Multiset<String> multiset = HashMultiset.create(50); 48 multiset.add("foo", 2); 49 multiset.add("bar"); 50 assertEquals(3, multiset.size()); 51 assertEquals(2, multiset.count("foo")); 52 } 53 testCreateFromIterable()54 public void testCreateFromIterable() { 55 Multiset<String> multiset 56 = HashMultiset.create(Arrays.asList("foo", "bar", "foo")); 57 assertEquals(3, multiset.size()); 58 assertEquals(2, multiset.count("foo")); 59 } 60 61 @GwtIncompatible("SerializableTester") testSerializationContainingSelf()62 public void testSerializationContainingSelf() { 63 Multiset<Multiset<?>> multiset = HashMultiset.create(); 64 multiset.add(multiset, 2); 65 Multiset<Multiset<?>> copy = SerializableTester.reserialize(multiset); 66 assertEquals(2, copy.size()); 67 assertSame(copy, copy.iterator().next()); 68 } 69 70 @GwtIncompatible("Only used by @GwtIncompatible code") 71 private static class MultisetHolder implements Serializable { 72 public Multiset<?> member; MultisetHolder(Multiset<?> multiset)73 MultisetHolder(Multiset<?> multiset) { 74 this.member = multiset; 75 } 76 private static final long serialVersionUID = 1L; 77 } 78 79 @GwtIncompatible("SerializableTester") testSerializationIndirectSelfReference()80 public void testSerializationIndirectSelfReference() { 81 Multiset<MultisetHolder> multiset = HashMultiset.create(); 82 MultisetHolder holder = new MultisetHolder(multiset); 83 multiset.add(holder, 2); 84 Multiset<MultisetHolder> copy = SerializableTester.reserialize(multiset); 85 assertEquals(2, copy.size()); 86 assertSame(copy, copy.iterator().next().member); 87 } 88 89 /* 90 * The behavior of toString() and iteration is tested by LinkedHashMultiset, 91 * which shares a lot of code with HashMultiset and has deterministic 92 * iteration order. 93 */ 94 95 /** 96 * This test fails with Java 6, preventing us from running 97 * NullPointerTester on multisets. 98 public void testAnnotations() throws Exception { 99 Method method = HashMultiset.class.getDeclaredMethod( 100 "add", Object.class, int.class); 101 assertTrue(method.getParameterAnnotations()[0].length > 0); 102 } 103 */ 104 105 @Override 106 @GwtIncompatible( 107 "http://code.google.com/p/google-web-toolkit/issues/detail?id=3421") testEntryAfterRemove()108 public void testEntryAfterRemove() { 109 super.testEntryAfterRemove(); 110 } 111 112 @Override 113 @GwtIncompatible( 114 "http://code.google.com/p/google-web-toolkit/issues/detail?id=3421") testEntryAfterClear()115 public void testEntryAfterClear() { 116 super.testEntryAfterClear(); 117 } 118 119 @Override 120 @GwtIncompatible( 121 "http://code.google.com/p/google-web-toolkit/issues/detail?id=3421") testEntryAfterEntrySetClear()122 public void testEntryAfterEntrySetClear() { 123 super.testEntryAfterEntrySetClear(); 124 } 125 126 @Override 127 @GwtIncompatible( 128 "http://code.google.com/p/google-web-toolkit/issues/detail?id=3421") testEntryAfterEntrySetIteratorRemove()129 public void testEntryAfterEntrySetIteratorRemove() { 130 super.testEntryAfterEntrySetIteratorRemove(); 131 } 132 133 @Override 134 @GwtIncompatible( 135 "http://code.google.com/p/google-web-toolkit/issues/detail?id=3421") testEntryAfterElementSetIteratorRemove()136 public void testEntryAfterElementSetIteratorRemove() { 137 super.testEntryAfterElementSetIteratorRemove(); 138 } 139 } 140