1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*
* Copyright (C) 2012 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.testing.google;
import static java.util.Arrays.asList;
import static org.truth0.Truth.ASSERT;
import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.Multimap;
import com.google.common.collect.testing.AbstractContainerTester;
import com.google.common.collect.testing.Helpers;
import com.google.common.collect.testing.SampleElements;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
/**
* Superclass for all {@code Multimap} testers.
*
* @author Louis Wasserman
*/
@GwtCompatible
public abstract class AbstractMultimapTester<K, V, M extends Multimap<K, V>>
extends AbstractContainerTester<M, Map.Entry<K, V>> {
private M multimap;
protected M multimap() {
return multimap;
}
/**
* @return an array of the proper size with {@code null} as the key of the
* middle element.
*/
protected Map.Entry<K, V>[] createArrayWithNullKey() {
Map.Entry<K, V>[] array = createSamplesArray();
final int nullKeyLocation = getNullLocation();
final Map.Entry<K, V> oldEntry = array[nullKeyLocation];
array[nullKeyLocation] = Helpers.mapEntry(null, oldEntry.getValue());
return array;
}
/**
* @return an array of the proper size with {@code null} as the value of the
* middle element.
*/
protected Map.Entry<K, V>[] createArrayWithNullValue() {
Map.Entry<K, V>[] array = createSamplesArray();
final int nullValueLocation = getNullLocation();
final Map.Entry<K, V> oldEntry = array[nullValueLocation];
array[nullValueLocation] = Helpers.mapEntry(oldEntry.getKey(), null);
return array;
}
/**
* @return an array of the proper size with {@code null} as the key and value of the
* middle element.
*/
protected Map.Entry<K, V>[] createArrayWithNullKeyAndValue() {
Map.Entry<K, V>[] array = createSamplesArray();
final int nullValueLocation = getNullLocation();
array[nullValueLocation] = Helpers.mapEntry(null, null);
return array;
}
protected V getValueForNullKey() {
return getEntryNullReplaces().getValue();
}
protected K getKeyForNullValue() {
return getEntryNullReplaces().getKey();
}
private Entry<K, V> getEntryNullReplaces() {
Iterator<Entry<K, V>> entries = getSampleElements().iterator();
for (int i = 0; i < getNullLocation(); i++) {
entries.next();
}
return entries.next();
}
protected void initMultimapWithNullKey() {
resetContainer(getSubjectGenerator().create(createArrayWithNullKey()));
}
protected void initMultimapWithNullValue() {
resetContainer(getSubjectGenerator().create(createArrayWithNullValue()));
}
protected void initMultimapWithNullKeyAndValue() {
resetContainer(getSubjectGenerator().create(createArrayWithNullKeyAndValue()));
}
protected SampleElements<K> sampleKeys() {
return ((TestMultimapGenerator<K, V, ? extends Multimap<K, V>>) getSubjectGenerator()
.getInnerGenerator()).sampleKeys();
}
protected SampleElements<V> sampleValues() {
return ((TestMultimapGenerator<K, V, ? extends Multimap<K, V>>) getSubjectGenerator()
.getInnerGenerator()).sampleValues();
}
@Override
protected Collection<Entry<K, V>> actualContents() {
return multimap.entries();
}
// TODO: dispose of this once collection is encapsulated.
@Override
protected M resetContainer(M newContents) {
multimap = super.resetContainer(newContents);
return multimap;
}
protected Multimap<K, V> resetContainer(Entry<K, V>... newContents) {
multimap = super.resetContainer(getSubjectGenerator().create(newContents));
return multimap;
}
/** @see AbstractContainerTester#resetContainer() */
protected void resetCollection() {
resetContainer();
}
protected void assertGet(K key, V... values) {
assertGet(key, Arrays.asList(values));
}
protected void assertGet(K key, Collection<V> values) {
ASSERT.that(multimap().get(key)).has().allFrom(values);
if (!values.isEmpty()) {
ASSERT.that(multimap().asMap().get(key)).has().allFrom(values);
assertFalse(multimap().isEmpty());
} else {
ASSERT.that(multimap().asMap().get(key)).isNull();
}
// TODO(user): Add proper overrides to prevent autoboxing.
// Truth+autoboxing == compile error. Cast int to long to fix:
ASSERT.that(multimap().get(key).size()).is((long) values.size());
assertEquals(values.size() > 0, multimap().containsKey(key));
assertEquals(values.size() > 0, multimap().keySet().contains(key));
assertEquals(values.size() > 0, multimap().keys().contains(key));
}
}
|
