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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/*
* Copyright (C) 2007 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.testing.ListTestSuiteBuilder;
import com.google.common.collect.testing.TestStringListGenerator;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.features.ListFeature;
import com.google.common.testing.EqualsTester;
import com.google.common.testing.ForwardingWrapperTester;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
/**
* Tests for {@code ForwardingList}.
*
* @author Robert Konigsberg
* @author Louis Wasserman
*/
public class ForwardingListTest extends TestCase {
static final class StandardImplForwardingList<T> extends ForwardingList<T> {
private final List<T> backingList;
StandardImplForwardingList(List<T> backingList) {
this.backingList = backingList;
}
@Override
protected List<T> delegate() {
return backingList;
}
@Override
public boolean add(T element) {
return standardAdd(element);
}
@Override
public boolean addAll(Collection<? extends T> collection) {
return standardAddAll(collection);
}
@Override
public boolean addAll(int index, Collection<? extends T> elements) {
return standardAddAll(index, elements);
}
@Override
public void clear() {
standardClear();
}
@Override
public boolean contains(Object object) {
return standardContains(object);
}
@Override
public boolean containsAll(Collection<?> collection) {
return standardContainsAll(collection);
}
@Override
public boolean remove(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 Object[] toArray() {
return standardToArray();
}
@Override
public <T> T[] toArray(T[] array) {
return standardToArray(array);
}
@Override
public String toString() {
return standardToString();
}
@Override
public boolean equals(Object object) {
return standardEquals(object);
}
@Override
public int hashCode() {
return standardHashCode();
}
@Override
public int indexOf(Object element) {
return standardIndexOf(element);
}
@Override
public int lastIndexOf(Object element) {
return standardLastIndexOf(element);
}
@Override
public Iterator<T> iterator() {
return listIterator();
}
@Override
public ListIterator<T> listIterator() {
return listIterator(0);
}
@Override
public ListIterator<T> listIterator(int index) {
return standardListIterator(index);
}
@Override
public List<T> subList(int fromIndex, int toIndex) {
return standardSubList(fromIndex, toIndex);
}
}
public static Test suite() {
TestSuite suite = new TestSuite();
suite.addTestSuite(ForwardingListTest.class);
suite.addTest(
ListTestSuiteBuilder.using(
new TestStringListGenerator() {
@Override
protected List<String> create(String[] elements) {
return new StandardImplForwardingList<>(Lists.newArrayList(elements));
}
})
.named("ForwardingList[ArrayList] with standard implementations")
.withFeatures(
CollectionSize.ANY,
CollectionFeature.ALLOWS_NULL_VALUES,
ListFeature.GENERAL_PURPOSE)
.createTestSuite());
suite.addTest(
ListTestSuiteBuilder.using(
new TestStringListGenerator() {
@Override
protected List<String> create(String[] elements) {
return new StandardImplForwardingList<>(ImmutableList.copyOf(elements));
}
})
.named("ForwardingList[ImmutableList] with standard implementations")
.withFeatures(CollectionSize.ANY, CollectionFeature.ALLOWS_NULL_QUERIES)
.createTestSuite());
return suite;
}
@SuppressWarnings({"rawtypes", "unchecked"})
public void testForwarding() {
new ForwardingWrapperTester()
.testForwarding(
List.class,
new Function<List, List>() {
@Override
public List apply(List delegate) {
return wrap(delegate);
}
});
}
public void testEquals() {
List<String> list1 = ImmutableList.of("one");
List<String> list2 = ImmutableList.of("two");
new EqualsTester()
.addEqualityGroup(list1, wrap(list1), wrap(list1))
.addEqualityGroup(list2, wrap(list2))
.testEquals();
}
private static <T> List<T> wrap(final List<T> delegate) {
return new ForwardingList<T>() {
@Override
protected List<T> delegate() {
return delegate;
}
};
}
}
|
