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
|
/*
* Copyright (C) 2011 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.CollectionFeature.KNOWN_ORDER;
import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_REMOVE;
import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.IteratorFeature;
import com.google.common.collect.testing.IteratorTester;
import com.google.common.collect.testing.features.CollectionFeature;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
/**
* Tester to make sure the {@code iterator().remove()} implementation of {@code Multiset} works when
* there are multiple occurrences of elements.
*
* @author Louis Wasserman
*/
@GwtCompatible
public class MultisetIteratorTester<E> extends AbstractMultisetTester<E> {
@SuppressWarnings("unchecked")
@CollectionFeature.Require({SUPPORTS_REMOVE, KNOWN_ORDER})
public void testRemovingIteratorKnownOrder() {
new IteratorTester<E>(4, IteratorFeature.MODIFIABLE, getSubjectGenerator().order(
Arrays.asList(samples.e0, samples.e1, samples.e1, samples.e2)),
IteratorTester.KnownOrder.KNOWN_ORDER) {
@Override
protected Iterator<E> newTargetIterator() {
return getSubjectGenerator().create(samples.e0, samples.e1, samples.e1, samples.e2)
.iterator();
}
}.test();
}
@SuppressWarnings("unchecked")
@CollectionFeature.Require(value = SUPPORTS_REMOVE, absent = KNOWN_ORDER)
public void testRemovingIteratorUnknownOrder() {
new IteratorTester<E>(4, IteratorFeature.MODIFIABLE, Arrays.asList(samples.e0, samples.e1,
samples.e1, samples.e2), IteratorTester.KnownOrder.UNKNOWN_ORDER) {
@Override
protected Iterator<E> newTargetIterator() {
return getSubjectGenerator().create(samples.e0, samples.e1, samples.e1, samples.e2)
.iterator();
}
}.test();
}
@SuppressWarnings("unchecked")
@CollectionFeature.Require(value = KNOWN_ORDER, absent = SUPPORTS_REMOVE)
public void testIteratorKnownOrder() {
new IteratorTester<E>(4, IteratorFeature.UNMODIFIABLE, getSubjectGenerator().order(
Arrays.asList(samples.e0, samples.e1, samples.e1, samples.e2)),
IteratorTester.KnownOrder.KNOWN_ORDER) {
@Override
protected Iterator<E> newTargetIterator() {
return getSubjectGenerator().create(samples.e0, samples.e1, samples.e1, samples.e2)
.iterator();
}
}.test();
}
@SuppressWarnings("unchecked")
@CollectionFeature.Require(absent = {SUPPORTS_REMOVE, KNOWN_ORDER})
public void testIteratorUnknownOrder() {
new IteratorTester<E>(4, IteratorFeature.UNMODIFIABLE, Arrays.asList(samples.e0, samples.e1,
samples.e1, samples.e2), IteratorTester.KnownOrder.UNKNOWN_ORDER) {
@Override
protected Iterator<E> newTargetIterator() {
return getSubjectGenerator().create(samples.e0, samples.e1, samples.e1, samples.e2)
.iterator();
}
}.test();
}
/**
* Returns {@link Method} instances for the tests that assume multisets support duplicates so that
* the test of {@code Multisets.forSet()} can suppress them.
*/
public static List<Method> getIteratorDuplicateInitializingMethods() {
return Arrays.asList(
Platform.getMethod(MultisetIteratorTester.class, "testIteratorKnownOrder"),
Platform.getMethod(MultisetIteratorTester.class, "testIteratorUnknownOrder"),
Platform.getMethod(MultisetIteratorTester.class, "testRemovingIteratorKnownOrder"),
Platform.getMethod(MultisetIteratorTester.class, "testRemovingIteratorUnknownOrder"));
}
}
|
