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
|
/*
* Copyright (C) 2010 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;
import static com.google.common.collect.testing.Helpers.castOrCopyToList;
import static java.util.Collections.reverse;
import com.google.common.collect.testing.DerivedCollectionGenerators.Bound;
import com.google.common.collect.testing.DerivedCollectionGenerators.SortedMapSubmapTestMapGenerator;
import com.google.common.collect.testing.features.Feature;
import com.google.common.collect.testing.testers.NavigableMapNavigationTester;
import junit.framework.TestSuite;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.NavigableMap;
import java.util.SortedMap;
/**
* Creates, based on your criteria, a JUnit test suite that exhaustively tests
* a NavigableMap implementation.
*/
public class NavigableMapTestSuiteBuilder<K, V> extends SortedMapTestSuiteBuilder<K, V> {
public static <K, V> NavigableMapTestSuiteBuilder<K, V> using(
TestSortedMapGenerator<K, V> generator) {
NavigableMapTestSuiteBuilder<K, V> result = new NavigableMapTestSuiteBuilder<K, V>();
result.usingGenerator(generator);
return result;
}
@Override protected List<Class<? extends AbstractTester>> getTesters() {
List<Class<? extends AbstractTester>> testers = Helpers.copyToList(super.getTesters());
testers.add(NavigableMapNavigationTester.class);
return testers;
}
@Override
protected List<TestSuite> createDerivedSuites(FeatureSpecificTestSuiteBuilder<?,
? extends OneSizeTestContainerGenerator<Map<K, V>, Entry<K, V>>> parentBuilder) {
List<TestSuite> derivedSuites = super.createDerivedSuites(parentBuilder);
if (!parentBuilder.getFeatures().contains(NoRecurse.DESCENDING)) {
derivedSuites.add(createDescendingSuite(parentBuilder));
}
if (!parentBuilder.getFeatures().contains(NoRecurse.SUBMAP)) {
// Other combinations are inherited from SortedMapTestSuiteBuilder.
derivedSuites.add(createSubmapSuite(parentBuilder, Bound.NO_BOUND, Bound.INCLUSIVE));
derivedSuites.add(createSubmapSuite(parentBuilder, Bound.EXCLUSIVE, Bound.NO_BOUND));
derivedSuites.add(createSubmapSuite(parentBuilder, Bound.EXCLUSIVE, Bound.EXCLUSIVE));
derivedSuites.add(createSubmapSuite(parentBuilder, Bound.EXCLUSIVE, Bound.INCLUSIVE));
derivedSuites.add(createSubmapSuite(parentBuilder, Bound.INCLUSIVE, Bound.INCLUSIVE));
}
return derivedSuites;
}
@Override protected NavigableSetTestSuiteBuilder<K> createDerivedKeySetSuite(
TestSetGenerator<K> keySetGenerator) {
return NavigableSetTestSuiteBuilder.using(keySetGenerator);
}
public static final class NavigableMapSubmapTestMapGenerator<K, V>
extends SortedMapSubmapTestMapGenerator<K, V> {
public NavigableMapSubmapTestMapGenerator(
TestSortedMapGenerator<K, V> delegate, Bound to, Bound from) {
super(delegate, to, from);
}
@Override NavigableMap<K, V> createSubMap(SortedMap<K, V> sortedMap, K firstExclusive,
K lastExclusive) {
NavigableMap<K, V> map = (NavigableMap<K, V>) sortedMap;
if (from == Bound.NO_BOUND && to == Bound.INCLUSIVE) {
return map.headMap(lastInclusive, true);
} else if (from == Bound.EXCLUSIVE && to == Bound.NO_BOUND) {
return map.tailMap(firstExclusive, false);
} else if (from == Bound.EXCLUSIVE && to == Bound.EXCLUSIVE) {
return map.subMap(firstExclusive, false, lastExclusive, false);
} else if (from == Bound.EXCLUSIVE && to == Bound.INCLUSIVE) {
return map.subMap(firstExclusive, false, lastInclusive, true);
} else if (from == Bound.INCLUSIVE && to == Bound.INCLUSIVE) {
return map.subMap(firstInclusive, true, lastInclusive, true);
} else {
return (NavigableMap<K, V>) super.createSubMap(map, firstExclusive, lastExclusive);
}
}
}
@Override
public NavigableMapTestSuiteBuilder<K, V> newBuilderUsing(
TestSortedMapGenerator<K, V> delegate, Bound to, Bound from) {
return using(new NavigableMapSubmapTestMapGenerator<K, V>(delegate, to, from));
}
/**
* Create a suite whose maps are descending views of other maps.
*/
private TestSuite createDescendingSuite(final FeatureSpecificTestSuiteBuilder<?,
? extends OneSizeTestContainerGenerator<Map<K, V>, Entry<K, V>>> parentBuilder) {
final TestMapGenerator<K, V> delegate
= (TestMapGenerator<K, V>) parentBuilder.getSubjectGenerator().getInnerGenerator();
List<Feature<?>> features = new ArrayList<Feature<?>>();
features.add(NoRecurse.DESCENDING);
features.addAll(parentBuilder.getFeatures());
return NavigableMapTestSuiteBuilder
.using(new ForwardingTestMapGenerator<K, V>(delegate) {
@Override public Map<K, V> create(Object... entries) {
NavigableMap<K, V> map = (NavigableMap<K, V>) delegate.create(entries);
return map.descendingMap();
}
@Override
public Iterable<Entry<K, V>> order(List<Entry<K, V>> insertionOrder) {
insertionOrder = castOrCopyToList(delegate.order(insertionOrder));
reverse(insertionOrder);
return insertionOrder;
}
})
.named(parentBuilder.getName() + " descending")
.withFeatures(features)
.suppressing(parentBuilder.getSuppressedTests())
.createTestSuite();
}
static class ForwardingTestMapGenerator<K, V> implements TestMapGenerator<K, V> {
private TestMapGenerator<K, V> delegate;
ForwardingTestMapGenerator(TestMapGenerator<K, V> delegate) {
this.delegate = delegate;
}
@Override
public Iterable<Entry<K, V>> order(List<Entry<K, V>> insertionOrder) {
return delegate.order(insertionOrder);
}
@Override
public K[] createKeyArray(int length) {
return delegate.createKeyArray(length);
}
@Override
public V[] createValueArray(int length) {
return delegate.createValueArray(length);
}
@Override
public SampleElements<Entry<K, V>> samples() {
return delegate.samples();
}
@Override
public Map<K, V> create(Object... elements) {
return delegate.create(elements);
}
@Override
public Entry<K, V>[] createArray(int length) {
return delegate.createArray(length);
}
}
}
|
