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.Helpers.assertContentsAnyOrder; 020import static com.google.common.collect.testing.features.CollectionSize.ZERO; 021import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS; 022import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES; 023import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_PUT; 024import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE; 025 026import com.google.common.annotations.GwtCompatible; 027import com.google.common.collect.Multimap; 028import com.google.common.collect.testing.Helpers; 029import com.google.common.collect.testing.features.CollectionSize; 030import com.google.common.collect.testing.features.MapFeature; 031import java.util.ArrayList; 032import java.util.Arrays; 033import java.util.Collection; 034import java.util.Collections; 035import java.util.List; 036 037/** 038 * Tests for {@link Multimap#replaceValues(Object, Iterable)}. 039 * 040 * @author Louis Wasserman 041 */ 042@GwtCompatible 043public class MultimapReplaceValuesTester<K, V> 044 extends AbstractMultimapTester<K, V, Multimap<K, V>> { 045 046 @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE, ALLOWS_NULL_VALUES}) 047 public void testReplaceValuesWithNullValue() { 048 @SuppressWarnings("unchecked") 049 List<V> values = Arrays.asList(v0(), null, v3()); 050 multimap().replaceValues(k0(), values); 051 assertGet(k0(), values); 052 } 053 054 @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE, ALLOWS_NULL_KEYS}) 055 public void testReplaceValuesWithNullKey() { 056 @SuppressWarnings("unchecked") 057 List<V> values = Arrays.asList(v0(), v2(), v3()); 058 multimap().replaceValues(null, values); 059 assertGet(null, values); 060 } 061 062 @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE}) 063 public void testReplaceEmptyValues() { 064 int size = multimap().size(); 065 @SuppressWarnings("unchecked") 066 List<V> values = Arrays.asList(v0(), v2(), v3()); 067 multimap().replaceValues(k3(), values); 068 assertGet(k3(), values); 069 assertEquals(size + values.size(), multimap().size()); 070 } 071 072 @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE}) 073 public void testReplaceValuesWithEmpty() { 074 int size = multimap().size(); 075 List<V> oldValues = new ArrayList<>(multimap().get(k0())); 076 @SuppressWarnings("unchecked") 077 List<V> values = Collections.emptyList(); 078 assertEquals(oldValues, new ArrayList<V>(multimap().replaceValues(k0(), values))); 079 assertGet(k0()); 080 assertEquals(size - oldValues.size(), multimap().size()); 081 } 082 083 @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE}) 084 public void testReplaceValuesWithDuplicates() { 085 int size = multimap().size(); 086 List<V> oldValues = new ArrayList<>(multimap().get(k0())); 087 List<V> values = Arrays.asList(v0(), v3(), v0()); 088 assertEquals(oldValues, new ArrayList<V>(multimap().replaceValues(k0(), values))); 089 assertEquals(size - oldValues.size() + multimap().get(k0()).size(), multimap().size()); 090 assertTrue(multimap().get(k0()).containsAll(values)); 091 } 092 093 @CollectionSize.Require(absent = ZERO) 094 @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE}) 095 public void testReplaceNonEmptyValues() { 096 List<K> keys = Helpers.copyToList(multimap().keySet()); 097 @SuppressWarnings("unchecked") 098 List<V> values = Arrays.asList(v0(), v2(), v3()); 099 100 for (K k : keys) { 101 resetContainer(); 102 103 int size = multimap().size(); 104 Collection<V> oldKeyValues = Helpers.copyToList(multimap().get(k)); 105 multimap().replaceValues(k, values); 106 assertGet(k, values); 107 assertEquals(size + values.size() - oldKeyValues.size(), multimap().size()); 108 } 109 } 110 111 @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE}) 112 public void testReplaceValuesPropagatesToGet() { 113 Collection<V> getCollection = multimap().get(k0()); 114 @SuppressWarnings("unchecked") 115 List<V> values = Arrays.asList(v0(), v2(), v3()); 116 multimap().replaceValues(k0(), values); 117 assertContentsAnyOrder(getCollection, v0(), v2(), v3()); 118 } 119 120 @MapFeature.Require(absent = SUPPORTS_REMOVE) 121 @CollectionSize.Require(absent = ZERO) 122 public void testReplaceValuesRemoveNotSupported() { 123 List<V> values = Collections.singletonList(v3()); 124 try { 125 multimap().replaceValues(k0(), values); 126 fail("Expected UnsupportedOperationException"); 127 } catch (UnsupportedOperationException expected) { 128 // success 129 } 130 } 131 132 @MapFeature.Require(absent = SUPPORTS_PUT) 133 public void testReplaceValuesPutNotSupported() { 134 List<V> values = Collections.singletonList(v3()); 135 try { 136 multimap().replaceValues(k0(), values); 137 fail("Expected UnsupportedOperationException"); 138 } catch (UnsupportedOperationException expected) { 139 // success 140 } 141 } 142}