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/*
* Copyright (C) 2011 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 com.google.common.base.Function;
import com.google.common.collect.Multiset.Entry;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.google.SortedMultisetTestSuiteBuilder;
import com.google.common.collect.testing.google.TestStringMultisetGenerator;
import com.google.common.testing.EqualsTester;
import com.google.common.testing.ForwardingWrapperTester;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.NavigableSet;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* Tests for {@link ForwardingSortedMultiset}.
*
* @author Louis Wasserman
*/
public class ForwardingSortedMultisetTest extends TestCase {
static class StandardImplForwardingSortedMultiset<E> extends ForwardingSortedMultiset<E> {
private final SortedMultiset<E> backingMultiset;
StandardImplForwardingSortedMultiset(SortedMultiset<E> backingMultiset) {
this.backingMultiset = backingMultiset;
}
@Override
protected SortedMultiset<E> delegate() {
return backingMultiset;
}
@Override
public SortedMultiset<E> descendingMultiset() {
return new StandardDescendingMultiset() {
@Override
Iterator<Entry<E>> entryIterator() {
return backingMultiset.descendingMultiset().entrySet().iterator();
}
};
}
@Override
public NavigableSet<E> elementSet() {
return new StandardElementSet();
}
@Override
public Entry<E> firstEntry() {
return standardFirstEntry();
}
@Override
public Entry<E> lastEntry() {
return standardLastEntry();
}
@Override
public Entry<E> pollFirstEntry() {
return standardPollFirstEntry();
}
@Override
public Entry<E> pollLastEntry() {
return standardPollLastEntry();
}
@Override
public SortedMultiset<E> subMultiset(
E lowerBound, BoundType lowerBoundType, E upperBound, BoundType upperBoundType) {
return standardSubMultiset(lowerBound, lowerBoundType, upperBound, upperBoundType);
}
@Override
public int count(@Nullable Object element) {
return standardCount(element);
}
@Override
public boolean equals(@Nullable Object object) {
return standardEquals(object);
}
@Override
public int hashCode() {
return standardHashCode();
}
@Override
public boolean add(E element) {
return standardAdd(element);
}
@Override
public boolean addAll(Collection<? extends E> collection) {
return standardAddAll(collection);
}
@Override
public void clear() {
standardClear();
}
@Override
public boolean contains(@Nullable Object object) {
return standardContains(object);
}
@Override
public boolean containsAll(Collection<?> collection) {
return standardContainsAll(collection);
}
@Override
public boolean isEmpty() {
return standardIsEmpty();
}
@Override
public Iterator<E> iterator() {
return standardIterator();
}
@Override
public boolean remove(@Nullable Object object) {
return standardRemove(object);
}
@Override
public boolean removeAll(Collection<?> collection) {
return standardRemoveAll(collection);
}
@Override
public boolean retainAll(Collection<?> collection) {
return standardRetainAll(collection);
}
@Override
public int size() {
return standardSize();
}
@Override
public Object[] toArray() {
return standardToArray();
}
@Override
public <T> T[] toArray(T[] array) {
return standardToArray(array);
}
}
public static Test suite() {
TestSuite suite = new TestSuite();
suite.addTestSuite(ForwardingSortedMultisetTest.class);
suite.addTest(
SortedMultisetTestSuiteBuilder.using(
new TestStringMultisetGenerator() {
@Override
protected Multiset<String> create(String[] elements) {
return new StandardImplForwardingSortedMultiset<>(
TreeMultiset.create(Arrays.asList(elements)));
}
@Override
public List<String> order(List<String> insertionOrder) {
return Ordering.natural().sortedCopy(insertionOrder);
}
})
.named("ForwardingSortedMultiset with standard impls")
.withFeatures(
CollectionSize.ANY,
CollectionFeature.KNOWN_ORDER,
CollectionFeature.GENERAL_PURPOSE,
CollectionFeature.ALLOWS_NULL_QUERIES)
.createTestSuite());
return suite;
}
@SuppressWarnings({"rawtypes", "unchecked"})
public void testForwarding() {
new ForwardingWrapperTester()
.testForwarding(
SortedMultiset.class,
new Function<SortedMultiset, SortedMultiset>() {
@Override
public SortedMultiset apply(SortedMultiset delegate) {
return wrap(delegate);
}
});
}
public void testEquals() {
SortedMultiset<String> set1 = ImmutableSortedMultiset.of("one");
SortedMultiset<String> set2 = ImmutableSortedMultiset.of("two");
new EqualsTester()
.addEqualityGroup(set1, wrap(set1), wrap(set1))
.addEqualityGroup(set2, wrap(set2))
.testEquals();
}
private static <T> SortedMultiset<T> wrap(final SortedMultiset<T> delegate) {
return new ForwardingSortedMultiset<T>() {
@Override
protected SortedMultiset<T> delegate() {
return delegate;
}
};
}
}
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