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
|
/*
* Copyright (C) 2008 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 com.google.common.collect.testing.features.CollectionSize.ONE;
import static com.google.common.collect.testing.features.CollectionSize.SEVERAL;
import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.collect.HashMultiset;
import com.google.common.collect.Multiset;
import com.google.common.collect.Multisets;
import com.google.common.collect.testing.Helpers;
import com.google.common.collect.testing.WrongType;
import com.google.common.collect.testing.features.CollectionSize;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.List;
/**
* A generic JUnit test which tests multiset-specific read operations.
* Can't be invoked directly; please see
* {@link com.google.common.collect.testing.SetTestSuiteBuilder}.
*
* @author Jared Levy
*/
@GwtCompatible(emulated = true)
public class MultisetReadsTester<E> extends AbstractMultisetTester<E> {
public void testCount_0() {
assertEquals("multiset.count(missing) didn't return 0",
0, getMultiset().count(samples.e3));
}
@CollectionSize.Require(absent = ZERO)
public void testCount_1() {
assertEquals("multiset.count(present) didn't return 1",
1, getMultiset().count(samples.e0));
}
@CollectionSize.Require(SEVERAL)
public void testCount_3() {
initThreeCopies();
assertEquals("multiset.count(thriceContained) didn't return 3",
3, getMultiset().count(samples.e0));
}
public void testCount_null() {
assertEquals("multiset.count(null) didn't return 0",
0, getMultiset().count(null));
}
public void testCount_wrongType() {
assertEquals("multiset.count(wrongType) didn't return 0",
0, getMultiset().count(WrongType.VALUE));
}
@CollectionSize.Require(absent = ZERO)
public void testElementSet_contains() {
assertTrue("multiset.elementSet().contains(present) returned false",
getMultiset().elementSet().contains(samples.e0));
}
@CollectionSize.Require(absent = ZERO)
public void testEntrySet_contains() {
assertTrue("multiset.entrySet() didn't contain [present, 1]",
getMultiset().entrySet().contains(
Multisets.immutableEntry(samples.e0, 1)));
}
public void testEntrySet_contains_count0() {
assertFalse("multiset.entrySet() contains [missing, 0]",
getMultiset().entrySet().contains(
Multisets.immutableEntry(samples.e3, 0)));
}
public void testEntrySet_contains_nonentry() {
assertFalse("multiset.entrySet() contains a non-entry",
getMultiset().entrySet().contains(samples.e0));
}
public void testEntrySet_twice() {
assertEquals("calling multiset.entrySet() twice returned unequal sets",
getMultiset().entrySet(), getMultiset().entrySet());
}
@CollectionSize.Require(ZERO)
public void testEntrySet_hashCode_size0() {
assertEquals("multiset.entrySet() has incorrect hash code",
0, getMultiset().entrySet().hashCode());
}
@CollectionSize.Require(ONE)
public void testEntrySet_hashCode_size1() {
assertEquals("multiset.entrySet() has incorrect hash code",
1 ^ samples.e0.hashCode(), getMultiset().entrySet().hashCode());
}
public void testEquals_yes() {
assertTrue("multiset doesn't equal a multiset with the same elements",
getMultiset().equals(HashMultiset.create(getSampleElements())));
}
public void testEquals_differentSize() {
Multiset<E> other = HashMultiset.create(getSampleElements());
other.add(samples.e0);
assertFalse("multiset equals a multiset with a different size",
getMultiset().equals(other));
}
@CollectionSize.Require(absent = ZERO)
public void testEquals_differentElements() {
Multiset<E> other = HashMultiset.create(getSampleElements());
other.remove(samples.e0);
other.add(samples.e3);
assertFalse("multiset equals a multiset with different elements",
getMultiset().equals(other));
}
@CollectionSize.Require(ZERO)
public void testHashCode_size0() {
assertEquals("multiset has incorrect hash code",
0, getMultiset().hashCode());
}
@CollectionSize.Require(ONE)
public void testHashCode_size1() {
assertEquals("multiset has incorrect hash code",
1 ^ samples.e0.hashCode(), getMultiset().hashCode());
}
/**
* Returns {@link Method} instances for the read tests that assume multisets
* support duplicates so that the test of {@code Multisets.forSet()} can
* suppress them.
*/
@GwtIncompatible("reflection")
public static List<Method> getReadsDuplicateInitializingMethods() {
return Arrays.asList(
Helpers.getMethod(MultisetReadsTester.class, "testCount_3"));
}
}
|
