/*
* Copyright (C) 2013 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.testing.google;
import static com.google.common.collect.testing.features.CollectionSize.SEVERAL;
import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE;
import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import com.google.common.collect.testing.Helpers;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.features.MapFeature;
import com.google.common.testing.EqualsTester;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
/**
* Testers for {@link com.google.common.collect.ListMultimap#asMap}.
*
* @author Louis Wasserman
* @param <K> The key type of the tested multimap.
* @param <V> The value type of the tested multimap.
*/
@GwtCompatible
public class ListMultimapAsMapTester<K, V> extends AbstractListMultimapTester<K, V> {
public void testAsMapValuesImplementList() {
for (Collection<V> valueCollection : multimap().asMap().values()) {
assertTrue(valueCollection instanceof List);
}
}
public void testAsMapGetImplementsList() {
for (K key : multimap().keySet()) {
assertTrue(multimap().asMap().get(key) instanceof List);
}
}
@MapFeature.Require(SUPPORTS_REMOVE)
public void testAsMapRemoveImplementsList() {
List<K> keys = new ArrayList<K>(multimap().keySet());
for (K key : keys) {
resetCollection();
assertTrue(multimap().asMap().remove(key) instanceof List);
}
}
@CollectionSize.Require(SEVERAL)
public void testEquals() {
resetContainer(
Helpers.mapEntry(sampleKeys().e0, sampleValues().e0),
Helpers.mapEntry(sampleKeys().e1, sampleValues().e0),
Helpers.mapEntry(sampleKeys().e0, sampleValues().e3));
Map<K, Collection<V>> expected = Maps.newHashMap();
expected.put(sampleKeys().e0, Lists.newArrayList(sampleValues().e0, sampleValues().e3));
expected.put(sampleKeys().e1, Lists.newArrayList(sampleValues().e0));
new EqualsTester()
.addEqualityGroup(expected, multimap().asMap())
.testEquals();
}
@CollectionSize.Require(SEVERAL)
public void testEntrySetEquals() {
resetContainer(
Helpers.mapEntry(sampleKeys().e0, sampleValues().e0),
Helpers.mapEntry(sampleKeys().e1, sampleValues().e0),
Helpers.mapEntry(sampleKeys().e0, sampleValues().e3));
Set<Entry<K, Collection<V>>> expected = Sets.newHashSet();
expected.add(Helpers.mapEntry(
sampleKeys().e0,
(Collection<V>) Lists.newArrayList(sampleValues().e0, sampleValues().e3)));
expected.add(Helpers.mapEntry(
sampleKeys().e1,
(Collection<V>) Lists.newArrayList(sampleValues().e0)));
new EqualsTester()
.addEqualityGroup(expected, multimap().asMap().entrySet())
.testEquals();
}
@CollectionSize.Require(SEVERAL)
@MapFeature.Require(SUPPORTS_REMOVE)
public void testValuesRemove() {
resetContainer(
Helpers.mapEntry(sampleKeys().e0, sampleValues().e0),
Helpers.mapEntry(sampleKeys().e1, sampleValues().e0),
Helpers.mapEntry(sampleKeys().e0, sampleValues().e3));
assertTrue(multimap().asMap().values().remove(Collections.singletonList(sampleValues().e0)));
assertEquals(2, multimap().size());
assertEquals(
Collections.singletonMap(
sampleKeys().e0, Lists.newArrayList(sampleValues().e0, sampleValues().e3)),
multimap().asMap());
}
}