/*
* Copyright (C) 2008 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 com.google.common.collect.Maps.newHashMap;
import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_VALUES;
import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_REMOVE;
import static com.google.common.collect.testing.google.AbstractMultisetSetCountTester.getSetCountDuplicateInitializingMethods;
import static com.google.common.collect.testing.google.MultisetIteratorTester.getIteratorDuplicateInitializingMethods;
import static com.google.common.collect.testing.google.MultisetReadsTester.getReadsDuplicateInitializingMethods;
import static java.lang.reflect.Proxy.newProxyInstance;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.base.Functions;
import com.google.common.base.Predicate;
import com.google.common.base.Supplier;
import com.google.common.collect.testing.CollectionTestSuiteBuilder;
import com.google.common.collect.testing.ListTestSuiteBuilder;
import com.google.common.collect.testing.SampleElements;
import com.google.common.collect.testing.SetTestSuiteBuilder;
import com.google.common.collect.testing.TestCollectionGenerator;
import com.google.common.collect.testing.TestListGenerator;
import com.google.common.collect.testing.TestStringCollectionGenerator;
import com.google.common.collect.testing.TestStringListGenerator;
import com.google.common.collect.testing.TestStringSetGenerator;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.features.Feature;
import com.google.common.collect.testing.features.ListFeature;
import com.google.common.collect.testing.features.MapFeature;
import com.google.common.collect.testing.google.ListMultimapTestSuiteBuilder;
import com.google.common.collect.testing.google.MultisetTestSuiteBuilder;
import com.google.common.collect.testing.google.MultisetWritesTester;
import com.google.common.collect.testing.google.SetMultimapTestSuiteBuilder;
import com.google.common.collect.testing.google.SortedSetMultimapTestSuiteBuilder;
import com.google.common.collect.testing.google.TestStringListMultimapGenerator;
import com.google.common.collect.testing.google.TestStringMultisetGenerator;
import com.google.common.collect.testing.google.TestStringSetMultimapGenerator;
import com.google.common.collect.testing.testers.CollectionIteratorTester;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.TreeSet;
/**
* Run collection tests on {@link Multimap} implementations.
*
* @author Jared Levy
*/
@GwtIncompatible("suite") // TODO(cpovirk): set up collect/gwt/suites version
public class MultimapCollectionTest extends TestCase {
static final Feature<?>[] COLLECTION_FEATURES_ORDER = {
CollectionSize.ANY,
CollectionFeature.ALLOWS_NULL_VALUES,
CollectionFeature.KNOWN_ORDER,
CollectionFeature.GENERAL_PURPOSE
};
static final Feature<?>[] COLLECTION_FEATURES_REMOVE = {
CollectionSize.ANY,
CollectionFeature.ALLOWS_NULL_VALUES,
CollectionFeature.SUPPORTS_REMOVE
};
static final Feature<?>[] COLLECTION_FEATURES_REMOVE_ORDER = {
CollectionSize.ANY,
CollectionFeature.ALLOWS_NULL_VALUES,
CollectionFeature.KNOWN_ORDER,
CollectionFeature.SUPPORTS_REMOVE
};
private static final Feature<?>[] FOR_MAP_FEATURES_ONE = {
CollectionSize.ONE,
ALLOWS_NULL_VALUES,
SUPPORTS_REMOVE,
};
private static final Feature<?>[] FOR_MAP_FEATURES_ANY = {
CollectionSize.ANY,
ALLOWS_NULL_VALUES,
SUPPORTS_REMOVE,
};
static final Supplier<TreeSet<String>> STRING_TREESET_FACTORY
= new Supplier<TreeSet<String>>() {
@Override
public TreeSet<String> get() {
return new TreeSet<String>(Ordering.natural().nullsLast());
}
};
static void populateMultimapForGet(
Multimap<Integer, String> multimap, String[] elements) {
multimap.put(2, "foo");
for (String element : elements) {
multimap.put(3, element);
}
}
static void populateMultimapForKeySet(
Multimap<String, Integer> multimap, String[] elements) {
for (String element : elements) {
multimap.put(element, 2);
multimap.put(element, 3);
}
}
static void populateMultimapForValues(
Multimap<Integer, String> multimap, String[] elements) {
for (int i = 0; i < elements.length; i++) {
multimap.put(i % 2, elements[i]);
}
}
static void populateMultimapForKeys(
Multimap<String, Integer> multimap, String[] elements) {
for (int i = 0; i < elements.length; i++) {
multimap.put(elements[i], i);
}
}
/**
* Implements {@code Multimap.put()} -- and no other methods -- for a {@code
* Map} by ignoring all but the latest value for each key. This class exists
* only so that we can use
* {@link MultimapCollectionTest#populateMultimapForGet(Multimap, String[])}
* and similar methods to populate a map to be passed to
* {@link Multimaps#forMap(Map)}. All tests should run against the result of
* {@link #build()}.
*/
private static final class PopulatableMapAsMultimap<K, V>
extends ForwardingMultimap<K, V> {
final Map<K, V> map;
final SetMultimap<K, V> unusableDelegate;
static <K, V> PopulatableMapAsMultimap<K, V> create() {
return new PopulatableMapAsMultimap<K, V>();
}
@SuppressWarnings("unchecked") // all methods throw immediately
PopulatableMapAsMultimap() {
this.map = newHashMap();
this.unusableDelegate = (SetMultimap<K, V>) newProxyInstance(
SetMultimap.class.getClassLoader(),
new Class<?>[] {SetMultimap.class},
new InvocationHandler() {
@Override
public Object invoke(Object proxy, Method method, Object[] args)
throws Throwable {
throw new UnsupportedOperationException();
}
});
}
@Override protected Multimap<K, V> delegate() {
return unusableDelegate;
}
@Override public boolean put(K key, V value) {
map.put(key, value);
return true;
}
SetMultimap<K, V> build() {
return Multimaps.forMap(map);
}
}
static abstract class TestEntriesGenerator
implements TestCollectionGenerator<Entry<String, Integer>> {
@Override
public SampleElements<Entry<String, Integer>> samples() {
return new SampleElements<Entry<String, Integer>>(
Maps.immutableEntry("bar", 1),
Maps.immutableEntry("bar", 2),
Maps.immutableEntry("foo", 3),
Maps.immutableEntry("bar", 3),
Maps.immutableEntry("cat", 2));
}
@Override
public Collection<Entry<String, Integer>> create(Object... elements) {
Multimap<String, Integer> multimap = createMultimap();
for (Object element : elements) {
@SuppressWarnings("unchecked")
Entry<String, Integer> entry = (Entry<String, Integer>) element;
multimap.put(entry.getKey(), entry.getValue());
}
return multimap.entries();
}
abstract Multimap<String, Integer> createMultimap();
@Override
@SuppressWarnings("unchecked")
public Entry<String, Integer>[] createArray(int length) {
return (Entry<String, Integer>[]) new Entry<?, ?>[length];
}
@Override
public List<Entry<String, Integer>> order(
List<Entry<String, Integer>> insertionOrder) {
return insertionOrder;
}
}
public static abstract class TestEntriesListGenerator
extends TestEntriesGenerator
implements TestListGenerator<Entry<String, Integer>> {
@Override public List<Entry<String, Integer>> create(Object... elements) {
return (List<Entry<String, Integer>>) super.create(elements);
}
}
private static final Predicate<Map.Entry<Integer, String>> FILTER_GET_PREDICATE
= new Predicate<Map.Entry<Integer, String>>() {
@Override public boolean apply(Entry<Integer, String> entry) {
return !"badvalue".equals(entry.getValue()) && 55556 != entry.getKey();
}
};
private static final Predicate<Map.Entry<String, Integer>> FILTER_KEYSET_PREDICATE
= new Predicate<Map.Entry<String, Integer>>() {
@Override public boolean apply(Entry<String, Integer> entry) {
return !"badkey".equals(entry.getKey()) && 55556 != entry.getValue();
}
};
public static Test suite() {
TestSuite suite = new TestSuite();
suite.addTest(SetMultimapTestSuiteBuilder.using(new TestStringSetMultimapGenerator() {
@Override
protected SetMultimap<String, String> create(Entry<String, String>[] entries) {
SetMultimap<String, String> multimap = HashMultimap.create();
for (Entry<String, String> entry : entries) {
multimap.put(entry.getKey(), entry.getValue());
}
return multimap;
}
})
.named("HashMultimap")
.withFeatures(
MapFeature.ALLOWS_NULL_KEYS,
MapFeature.ALLOWS_NULL_VALUES,
MapFeature.GENERAL_PURPOSE,
MapFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
CollectionFeature.SERIALIZABLE,
CollectionSize.ANY)
.createTestSuite());
suite.addTest(SetMultimapTestSuiteBuilder.using(new TestStringSetMultimapGenerator() {
@Override
protected SetMultimap<String, String> create(Entry<String, String>[] entries) {
SetMultimap<String, String> multimap = LinkedHashMultimap.create();
for (Entry<String, String> entry : entries) {
multimap.put(entry.getKey(), entry.getValue());
}
return multimap;
}
})
.named("LinkedHashMultimap")
.withFeatures(
MapFeature.ALLOWS_NULL_KEYS,
MapFeature.ALLOWS_NULL_VALUES,
MapFeature.GENERAL_PURPOSE,
MapFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
CollectionFeature.KNOWN_ORDER,
CollectionFeature.SERIALIZABLE,
CollectionSize.ANY)
.createTestSuite());
suite.addTest(SortedSetMultimapTestSuiteBuilder.using(new TestStringSetMultimapGenerator() {
@Override
protected SetMultimap<String, String> create(Entry<String, String>[] entries) {
SetMultimap<String, String> multimap = TreeMultimap.create(
Ordering.natural().nullsFirst(), Ordering.natural().nullsFirst());
for (Entry<String, String> entry : entries) {
multimap.put(entry.getKey(), entry.getValue());
}
return multimap;
}
@Override
public Iterable<Entry<String, String>> order(List<Entry<String, String>> insertionOrder) {
return new Ordering<Entry<String, String>>() {
@Override
public int compare(Entry<String, String> left, Entry<String, String> right) {
return ComparisonChain.start()
.compare(left.getKey(), right.getKey(), Ordering.natural().nullsFirst())
.compare(left.getValue(), right.getValue(), Ordering.natural().nullsFirst())
.result();
}
}.sortedCopy(insertionOrder);
}
})
.named("TreeMultimap nullsFirst")
.withFeatures(
MapFeature.ALLOWS_NULL_KEYS,
MapFeature.ALLOWS_NULL_VALUES,
MapFeature.GENERAL_PURPOSE,
MapFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
CollectionFeature.KNOWN_ORDER,
CollectionFeature.SERIALIZABLE,
CollectionSize.ANY)
.createTestSuite());
suite.addTest(ListMultimapTestSuiteBuilder.using(new TestStringListMultimapGenerator() {
@Override
protected ListMultimap<String, String> create(Entry<String, String>[] entries) {
ListMultimap<String, String> multimap = ArrayListMultimap.create();
for (Entry<String, String> entry : entries) {
multimap.put(entry.getKey(), entry.getValue());
}
return multimap;
}
})
.named("ArrayListMultimap")
.withFeatures(
MapFeature.ALLOWS_NULL_KEYS,
MapFeature.ALLOWS_NULL_VALUES,
MapFeature.GENERAL_PURPOSE,
MapFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
CollectionFeature.SERIALIZABLE,
CollectionSize.ANY)
.createTestSuite());
suite.addTest(ListMultimapTestSuiteBuilder.using(new TestStringListMultimapGenerator() {
@Override
protected ListMultimap<String, String> create(Entry<String, String>[] entries) {
ListMultimap<String, String> multimap = Multimaps.synchronizedListMultimap(
ArrayListMultimap.<String, String> create());
for (Entry<String, String> entry : entries) {
multimap.put(entry.getKey(), entry.getValue());
}
return multimap;
}
})
.named("synchronized ArrayListMultimap")
.withFeatures(
MapFeature.ALLOWS_NULL_KEYS,
MapFeature.ALLOWS_NULL_VALUES,
MapFeature.GENERAL_PURPOSE,
MapFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
CollectionSize.ANY)
.createTestSuite());
suite.addTest(ListMultimapTestSuiteBuilder.using(new TestStringListMultimapGenerator() {
@Override
protected ListMultimap<String, String> create(Entry<String, String>[] entries) {
ListMultimap<String, String> multimap = LinkedListMultimap.create();
for (Entry<String, String> entry : entries) {
multimap.put(entry.getKey(), entry.getValue());
}
return multimap;
}
})
.named("LinkedListMultimap")
.withFeatures(
MapFeature.ALLOWS_NULL_KEYS,
MapFeature.ALLOWS_NULL_VALUES,
MapFeature.GENERAL_PURPOSE,
CollectionFeature.SERIALIZABLE,
CollectionFeature.KNOWN_ORDER,
CollectionSize.ANY)
.createTestSuite());
suite.addTest(ListMultimapTestSuiteBuilder.using(new TestStringListMultimapGenerator() {
@Override
protected ListMultimap<String, String> create(Entry<String, String>[] entries) {
ImmutableListMultimap.Builder<String, String> builder = ImmutableListMultimap.builder();
for (Entry<String, String> entry : entries) {
builder.put(entry.getKey(), entry.getValue());
}
return builder.build();
}
})
.named("ImmutableListMultimap")
.withFeatures(
MapFeature.ALLOWS_NULL_QUERIES,
CollectionFeature.SERIALIZABLE,
CollectionFeature.KNOWN_ORDER,
CollectionSize.ANY)
.createTestSuite());
suite.addTest(SetMultimapTestSuiteBuilder.using(new TestStringSetMultimapGenerator() {
@Override
protected SetMultimap<String, String> create(Entry<String, String>[] entries) {
ImmutableSetMultimap.Builder<String, String> builder = ImmutableSetMultimap.builder();
for (Entry<String, String> entry : entries) {
builder.put(entry.getKey(), entry.getValue());
}
return builder.build();
}
})
.named("ImmutableSetMultimap")
.withFeatures(
MapFeature.ALLOWS_NULL_QUERIES,
CollectionFeature.KNOWN_ORDER,
CollectionFeature.SERIALIZABLE,
CollectionSize.ANY)
.createTestSuite());
suite.addTest(SetTestSuiteBuilder.using(
new TestStringSetGenerator() {
@Override protected Set<String> create(String[] elements) {
PopulatableMapAsMultimap<Integer, String> multimap
= PopulatableMapAsMultimap.create();
populateMultimapForGet(multimap, elements);
return multimap.build().get(3);
}
})
.named("Multimaps.forMap.get")
.withFeatures(FOR_MAP_FEATURES_ONE)
.createTestSuite());
suite.addTest(SetTestSuiteBuilder.using(new TestStringSetGenerator() {
@Override protected Set<String> create(String[] elements) {
SetMultimap<Integer, String> multimap
= LinkedHashMultimap.create();
populateMultimapForGet(multimap, elements);
multimap.put(3, "badvalue");
multimap.put(55556, "foo");
return (Set<String>) Multimaps.filterEntries(multimap, FILTER_GET_PREDICATE).get(3);
}
})
.named("Multimaps.filterEntries.get")
.withFeatures(COLLECTION_FEATURES_ORDER)
.suppressing(CollectionIteratorTester.getIteratorKnownOrderRemoveSupportedMethod())
.createTestSuite());
suite.addTest(SetTestSuiteBuilder.using(
new TestStringSetGenerator() {
@Override protected Set<String> create(String[] elements) {
PopulatableMapAsMultimap<String, Integer> multimap
= PopulatableMapAsMultimap.create();
populateMultimapForKeySet(multimap, elements);
return multimap.build().keySet();
}
})
.named("Multimaps.forMap.keySet")
.withFeatures(FOR_MAP_FEATURES_ANY)
.createTestSuite());
suite.addTest(SetTestSuiteBuilder.using(
new TestStringSetGenerator() {
@Override protected Set<String> create(String[] elements) {
SetMultimap<String, Integer> multimap = LinkedHashMultimap.create();
populateMultimapForKeySet(multimap, elements);
multimap.put("badkey", 3);
multimap.put("a", 55556);
return Multimaps.filterEntries(multimap, FILTER_KEYSET_PREDICATE).keySet();
}
})
.named("Multimaps.filterEntries.keySet")
.withFeatures(COLLECTION_FEATURES_REMOVE_ORDER)
.suppressing(CollectionIteratorTester.getIteratorKnownOrderRemoveSupportedMethod())
.createTestSuite());
suite.addTest(CollectionTestSuiteBuilder.using(
new TestStringCollectionGenerator() {
@Override public Collection<String> create(String[] elements) {
Multimap<Integer, String> multimap
= LinkedHashMultimap.create();
populateMultimapForValues(multimap, elements);
multimap.put(3, "badvalue");
multimap.put(55556, "foo");
return Multimaps.filterEntries(multimap, FILTER_GET_PREDICATE).values();
}
})
.named("Multimaps.filterEntries.values")
.withFeatures(COLLECTION_FEATURES_REMOVE_ORDER)
.suppressing(CollectionIteratorTester.getIteratorKnownOrderRemoveSupportedMethod())
.createTestSuite());
// TODO: use collection testers on Multimaps.forMap.values
suite.addTest(MultisetTestSuiteBuilder.using(
new TestStringMultisetGenerator() {
@Override protected Multiset<String> create(String[] elements) {
PopulatableMapAsMultimap<String, Integer> multimap
= PopulatableMapAsMultimap.create();
populateMultimapForKeys(multimap, elements);
return multimap.build().keys();
}
})
.named("Multimaps.forMap.keys")
.withFeatures(FOR_MAP_FEATURES_ANY)
.suppressing(getReadsDuplicateInitializingMethods())
.suppressing(getSetCountDuplicateInitializingMethods())
.suppressing(getIteratorDuplicateInitializingMethods())
.createTestSuite());
suite.addTest(MultisetTestSuiteBuilder.using(
new TestStringMultisetGenerator() {
@Override protected Multiset<String> create(String[] elements) {
SetMultimap<String, Integer> multimap = LinkedHashMultimap.create();
populateMultimapForKeys(multimap, elements);
multimap.put("badkey", 3);
multimap.put("a", 55556);
return Multimaps.filterEntries(multimap, FILTER_KEYSET_PREDICATE).keys();
}
})
.named("Multimaps.filterEntries.keys")
.withFeatures(COLLECTION_FEATURES_REMOVE_ORDER)
.suppressing(CollectionIteratorTester.getIteratorKnownOrderRemoveSupportedMethod())
.suppressing(MultisetWritesTester.getEntrySetIteratorMethod())
.suppressing(getIteratorDuplicateInitializingMethods())
.createTestSuite());
suite.addTest(CollectionTestSuiteBuilder.using(
new TestEntriesGenerator() {
@Override Multimap<String, Integer> createMultimap() {
Multimap<String, Integer> multimap = LinkedHashMultimap.create();
multimap.put("badkey", 3);
multimap.put("a", 55556);
return Multimaps.filterEntries(multimap, FILTER_KEYSET_PREDICATE);
}
})
.named("Multimap.filterEntries.entries")
.withFeatures(CollectionSize.ANY, CollectionFeature.SUPPORTS_REMOVE,
CollectionFeature.KNOWN_ORDER)
.suppressing(CollectionIteratorTester.getIteratorKnownOrderRemoveSupportedMethod())
.createTestSuite());
suite.addTest(ListTestSuiteBuilder.using(new TestStringListGenerator() {
@Override protected List<String> create(String[] elements) {
ListMultimap<Integer, String> multimap = ArrayListMultimap.create();
populateMultimapForGet(multimap, elements);
return Multimaps.transformValues(
multimap, Functions.<String> identity()).get(3);
}
}).named("Multimaps.transformValues[ListMultimap].get").withFeatures(
CollectionSize.ANY, CollectionFeature.ALLOWS_NULL_VALUES,
CollectionFeature.SUPPORTS_REMOVE,
ListFeature.SUPPORTS_REMOVE_WITH_INDEX).createTestSuite());
suite.addTest(SetTestSuiteBuilder.using(new TestStringSetGenerator() {
@Override protected Set<String> create(String[] elements) {
ListMultimap<String, Integer> multimap = ArrayListMultimap.create();
populateMultimapForKeySet(multimap, elements);
return Multimaps.transformValues(
multimap, Functions.<Integer> identity()).keySet();
}
}).named("Multimaps.transformValues[ListMultimap].keySet").withFeatures(
CollectionSize.ANY, CollectionFeature.ALLOWS_NULL_VALUES,
CollectionFeature.SUPPORTS_REMOVE).createTestSuite());
suite.addTest(MultisetTestSuiteBuilder.using(
new TestStringMultisetGenerator() {
@Override protected Multiset<String> create(String[] elements) {
ListMultimap<String, Integer> multimap
= ArrayListMultimap.create();
populateMultimapForKeys(multimap, elements);
return Multimaps.transformValues(
multimap, Functions.<Integer> identity()).keys();
}
})
.named("Multimaps.transform[ListMultimap].keys")
.withFeatures(COLLECTION_FEATURES_REMOVE)
.createTestSuite());
suite.addTest(
CollectionTestSuiteBuilder.using(new TestStringCollectionGenerator() {
@Override public Collection<String> create(String[] elements) {
ListMultimap<Integer, String> multimap = ArrayListMultimap.create();
populateMultimapForValues(multimap, elements);
return Multimaps.transformValues(
multimap, Functions.<String> identity()).values();
}
}).named("Multimaps.transformValues[ListMultimap].values").withFeatures(
COLLECTION_FEATURES_REMOVE).createTestSuite());
suite.addTest(CollectionTestSuiteBuilder.using(new TestEntriesGenerator() {
@Override public Collection<Entry<String, Integer>> create(
Object... elements) {
ListMultimap<String, Integer> multimap = ArrayListMultimap.create();
for (Object element : elements) {
@SuppressWarnings("unchecked")
Entry<String, Integer> entry = (Entry<String, Integer>) element;
multimap.put(entry.getKey(), entry.getValue());
}
return Multimaps.transformValues(
multimap, Functions.<Integer> identity()).entries();
}
@Override Multimap<String, Integer> createMultimap() {
return Multimaps.transformValues(
ArrayListMultimap.<String, Integer> create(),
Functions.<Integer> identity());
}
}).named("Multimaps.transformValues[ListMultimap].entries")
.withFeatures(CollectionSize.ANY, CollectionFeature.SUPPORTS_REMOVE)
.createTestSuite());
suite.addTest(
CollectionTestSuiteBuilder.using(new TestStringCollectionGenerator() {
@Override protected Collection<String> create(String[] elements) {
Multimap<Integer, String> multimap = ArrayListMultimap.create();
populateMultimapForGet(multimap, elements);
return Multimaps.transformValues(
multimap, Functions.<String> identity()).get(3);
}
}).named("Multimaps.transformValues[Multimap].get").withFeatures(
CollectionSize.ANY, CollectionFeature.ALLOWS_NULL_VALUES,
CollectionFeature.SUPPORTS_REMOVE).createTestSuite());
suite.addTest(SetTestSuiteBuilder.using(new TestStringSetGenerator() {
@Override protected Set<String> create(String[] elements) {
Multimap<String, Integer> multimap = ArrayListMultimap.create();
populateMultimapForKeySet(multimap, elements);
return Multimaps.transformValues(
multimap, Functions.<Integer> identity()).keySet();
}
}).named("Multimaps.transformValues[Multimap].keySet").withFeatures(
COLLECTION_FEATURES_REMOVE).createTestSuite());
suite.addTest(MultisetTestSuiteBuilder.using(
new TestStringMultisetGenerator() {
@Override protected Multiset<String> create(String[] elements) {
Multimap<String, Integer> multimap
= ArrayListMultimap.create();
populateMultimapForKeys(multimap, elements);
return Multimaps.transformValues(
multimap, Functions.<Integer> identity()).keys();
}
})
.named("Multimaps.transformValues[Multimap].keys")
.withFeatures(COLLECTION_FEATURES_REMOVE)
.createTestSuite());
suite.addTest(
CollectionTestSuiteBuilder.using(new TestStringCollectionGenerator() {
@Override public Collection<String> create(String[] elements) {
Multimap<Integer, String> multimap = ArrayListMultimap.create();
populateMultimapForValues(multimap, elements);
return Multimaps.transformValues(
multimap, Functions.<String> identity()).values();
}
}).named("Multimaps.transformValues[Multimap].values").withFeatures(
COLLECTION_FEATURES_REMOVE).createTestSuite());
suite.addTest(CollectionTestSuiteBuilder.using(new TestEntriesGenerator() {
@Override public Collection<Entry<String, Integer>> create(
Object... elements) {
Multimap<String, Integer> multimap = ArrayListMultimap.create();
for (Object element : elements) {
@SuppressWarnings("unchecked")
Entry<String, Integer> entry = (Entry<String, Integer>) element;
multimap.put(entry.getKey(), entry.getValue());
}
return Multimaps.transformValues(
multimap, Functions.<Integer> identity()).entries();
}
@Override Multimap<String, Integer> createMultimap() {
return Multimaps.transformValues(
(Multimap<String, Integer>)
ArrayListMultimap.<String, Integer> create(),
Functions.<Integer> identity());
}
}).named("Multimaps.transformValues[Multimap].entries")
.withFeatures(CollectionSize.ANY, CollectionFeature.SUPPORTS_REMOVE)
.createTestSuite());
// TODO: use collection testers on Multimaps.forMap.entries
return suite;
}
}