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.Lists; 022import com.google.common.collect.Maps; 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.checkerframework.checker.nullness.qual.Nullable; 036import org.junit.Ignore; 037 038/** 039 * Testers for {@link com.google.common.collect.ListMultimap#asMap}. 040 * 041 * @author Louis Wasserman 042 * @param <K> The key type of the tested multimap. 043 * @param <V> The value type of the tested multimap. 044 */ 045@GwtCompatible 046@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 047@ElementTypesAreNonnullByDefault 048public class ListMultimapAsMapTester<K extends @Nullable Object, V extends @Nullable Object> 049 extends AbstractListMultimapTester<K, V> { 050 public void testAsMapValuesImplementList() { 051 for (Collection<V> valueCollection : multimap().asMap().values()) { 052 assertTrue(valueCollection instanceof List); 053 } 054 } 055 056 public void testAsMapGetImplementsList() { 057 for (K key : multimap().keySet()) { 058 assertTrue(multimap().asMap().get(key) instanceof List); 059 } 060 } 061 062 @MapFeature.Require(SUPPORTS_REMOVE) 063 public void testAsMapRemoveImplementsList() { 064 List<K> keys = new ArrayList<>(multimap().keySet()); 065 for (K key : keys) { 066 resetCollection(); 067 assertTrue(multimap().asMap().remove(key) instanceof List); 068 } 069 } 070 071 @CollectionSize.Require(SEVERAL) 072 public void testEquals() { 073 resetContainer( 074 Helpers.mapEntry(k0(), v0()), Helpers.mapEntry(k1(), v0()), Helpers.mapEntry(k0(), v3())); 075 Map<K, Collection<V>> expected = Maps.newHashMap(); 076 expected.put(k0(), Lists.newArrayList(v0(), v3())); 077 expected.put(k1(), Lists.newArrayList(v0())); 078 new EqualsTester().addEqualityGroup(expected, multimap().asMap()).testEquals(); 079 } 080 081 @CollectionSize.Require(SEVERAL) 082 public void testEntrySetEquals() { 083 resetContainer( 084 Helpers.mapEntry(k0(), v0()), Helpers.mapEntry(k1(), v0()), Helpers.mapEntry(k0(), v3())); 085 Set<Entry<K, Collection<V>>> expected = Sets.newHashSet(); 086 expected.add(Helpers.mapEntry(k0(), (Collection<V>) Lists.newArrayList(v0(), v3()))); 087 expected.add(Helpers.mapEntry(k1(), (Collection<V>) Lists.newArrayList(v0()))); 088 new EqualsTester().addEqualityGroup(expected, multimap().asMap().entrySet()).testEquals(); 089 } 090 091 @CollectionSize.Require(SEVERAL) 092 @MapFeature.Require(SUPPORTS_REMOVE) 093 public void testValuesRemove() { 094 resetContainer( 095 Helpers.mapEntry(k0(), v0()), Helpers.mapEntry(k1(), v0()), Helpers.mapEntry(k0(), v3())); 096 assertTrue(multimap().asMap().values().remove(Collections.singletonList(v0()))); 097 assertEquals(2, multimap().size()); 098 assertEquals( 099 Collections.singletonMap(k0(), Lists.newArrayList(v0(), v3())), multimap().asMap()); 100 } 101}