001/*
002 * Copyright (C) 2012 The Guava Authors
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package com.google.common.collect.testing.google;
018
019import static com.google.common.collect.testing.features.CollectionSize.ZERO;
020import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES;
021import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUE_QUERIES;
022import static org.junit.Assert.assertThrows;
023
024import com.google.common.annotations.GwtCompatible;
025import com.google.common.collect.Multimap;
026import com.google.common.collect.testing.features.CollectionSize;
027import com.google.common.collect.testing.features.MapFeature;
028
029/**
030 * Tester for {@link Multimap#containsValue}.
031 *
032 * @author Louis Wasserman
033 */
034@GwtCompatible
035public class MultimapContainsValueTester<K, V>
036    extends AbstractMultimapTester<K, V, Multimap<K, V>> {
037  @CollectionSize.Require(absent = ZERO)
038  public void testContainsValueYes() {
039    assertTrue(multimap().containsValue(v0()));
040  }
041
042  public void testContainsValueNo() {
043    assertFalse(multimap().containsValue(v3()));
044  }
045
046  @MapFeature.Require(ALLOWS_NULL_VALUES)
047  @CollectionSize.Require(absent = ZERO)
048  public void testContainsNullValueYes() {
049    initMultimapWithNullValue();
050    assertTrue(multimap().containsValue(null));
051  }
052
053  @MapFeature.Require(ALLOWS_NULL_VALUE_QUERIES)
054  public void testContainsNullValueNo() {
055    assertFalse(multimap().containsValue(null));
056  }
057
058  @MapFeature.Require(absent = ALLOWS_NULL_VALUE_QUERIES)
059  public void testContainsNullValueFails() {
060    assertThrows(NullPointerException.class, () -> multimap().containsValue(null));
061  }
062}