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.Helpers.assertEqualIgnoringOrder;
018import static com.google.common.collect.testing.Helpers.assertEqualInOrder;
019import static com.google.common.collect.testing.features.CollectionFeature.KNOWN_ORDER;
020import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ITERATOR_REMOVE;
021import static com.google.common.collect.testing.features.CollectionSize.ONE;
022
023import com.google.common.annotations.GwtCompatible;
024import com.google.common.collect.Multimap;
025import com.google.common.collect.testing.features.CollectionFeature;
026import com.google.common.collect.testing.features.CollectionSize;
027import java.util.ArrayList;
028import java.util.Iterator;
029import java.util.List;
030import java.util.Map.Entry;
031
032/**
033 * Tester for {@code Multimap.values}.
034 *
035 * @author Louis Wasserman
036 */
037@GwtCompatible
038public class MultimapValuesTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> {
039  public void testValues() {
040    List<V> expected = new ArrayList<>();
041    for (Entry<K, V> entry : getSampleElements()) {
042      expected.add(entry.getValue());
043    }
044    assertEqualIgnoringOrder(expected, multimap().values());
045  }
046
047  @CollectionFeature.Require(KNOWN_ORDER)
048  public void testValuesInOrder() {
049    List<V> expected = new ArrayList<>();
050    for (Entry<K, V> entry : getOrderedElements()) {
051      expected.add(entry.getValue());
052    }
053    assertEqualInOrder(expected, multimap().values());
054  }
055
056  @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
057  @CollectionSize.Require(ONE)
058  public void testValuesIteratorRemove() {
059    Iterator<V> valuesItr = multimap().values().iterator();
060    valuesItr.next();
061    valuesItr.remove();
062    assertTrue(multimap().isEmpty());
063  }
064}