001/* 002 * Copyright (C) 2013 The Guava Authors 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 005 * in compliance with the License. You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software distributed under the License 010 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 011 * or implied. See the License for the specific language governing permissions and limitations under 012 * the License. 013 */ 014 015package com.google.common.collect.testing.google; 016 017import static com.google.common.collect.testing.features.CollectionSize.SEVERAL; 018import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE; 019 020import com.google.common.annotations.GwtCompatible; 021import com.google.common.collect.Maps; 022import com.google.common.collect.SetMultimap; 023import com.google.common.collect.Sets; 024import com.google.common.collect.testing.Helpers; 025import com.google.common.collect.testing.features.CollectionSize; 026import com.google.common.collect.testing.features.MapFeature; 027import com.google.common.testing.EqualsTester; 028import java.util.ArrayList; 029import java.util.Collection; 030import java.util.Collections; 031import java.util.List; 032import java.util.Map; 033import java.util.Map.Entry; 034import java.util.Set; 035import org.junit.Ignore; 036 037/** 038 * Testers for {@link SetMultimap#asMap}. 039 * 040 * @author Louis Wasserman 041 * @param <K> The key type of the tested multimap. 042 * @param <V> The value type of the tested multimap. 043 */ 044@GwtCompatible 045@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 046public class SetMultimapAsMapTester<K, V> extends AbstractMultimapTester<K, V, SetMultimap<K, V>> { 047 public void testAsMapValuesImplementSet() { 048 for (Collection<V> valueCollection : multimap().asMap().values()) { 049 assertTrue(valueCollection instanceof Set); 050 } 051 } 052 053 public void testAsMapGetImplementsSet() { 054 for (K key : multimap().keySet()) { 055 assertTrue(multimap().asMap().get(key) instanceof Set); 056 } 057 } 058 059 @MapFeature.Require(SUPPORTS_REMOVE) 060 public void testAsMapRemoveImplementsSet() { 061 List<K> keys = new ArrayList<K>(multimap().keySet()); 062 for (K key : keys) { 063 resetCollection(); 064 assertTrue(multimap().asMap().remove(key) instanceof Set); 065 } 066 } 067 068 @CollectionSize.Require(SEVERAL) 069 public void testEquals() { 070 resetContainer( 071 Helpers.mapEntry(k0(), v0()), Helpers.mapEntry(k1(), v0()), Helpers.mapEntry(k0(), v3())); 072 Map<K, Collection<V>> expected = Maps.newHashMap(); 073 expected.put(k0(), Sets.newHashSet(v0(), v3())); 074 expected.put(k1(), Sets.newHashSet(v0())); 075 new EqualsTester().addEqualityGroup(expected, multimap().asMap()).testEquals(); 076 } 077 078 @CollectionSize.Require(SEVERAL) 079 public void testEntrySetEquals() { 080 resetContainer( 081 Helpers.mapEntry(k0(), v0()), Helpers.mapEntry(k1(), v0()), Helpers.mapEntry(k0(), v3())); 082 Set<Entry<K, Collection<V>>> expected = Sets.newHashSet(); 083 expected.add(Helpers.mapEntry(k0(), (Collection<V>) Sets.newHashSet(v0(), v3()))); 084 expected.add(Helpers.mapEntry(k1(), (Collection<V>) Sets.newHashSet(v0()))); 085 new EqualsTester().addEqualityGroup(expected, multimap().asMap().entrySet()).testEquals(); 086 } 087 088 @CollectionSize.Require(SEVERAL) 089 @MapFeature.Require(SUPPORTS_REMOVE) 090 public void testValuesRemove() { 091 resetContainer( 092 Helpers.mapEntry(k0(), v0()), Helpers.mapEntry(k1(), v0()), Helpers.mapEntry(k0(), v3())); 093 assertTrue(multimap().asMap().values().remove(Collections.singleton(v0()))); 094 assertEquals(2, multimap().size()); 095 assertEquals(Collections.singletonMap(k0(), Sets.newHashSet(v0(), v3())), multimap().asMap()); 096 } 097}