Java
101 строка · 3.6 Кб
1/*
2* Copyright (C) 2008 The Guava Authors
3*
4* Licensed under the Apache License, Version 2.0 (the "License");
5* you may not use this file except in compliance with the License.
6* You may obtain a copy of the License at
7*
8* http://www.apache.org/licenses/LICENSE-2.0
9*
10* Unless required by applicable law or agreed to in writing, software
11* distributed under the License is distributed on an "AS IS" BASIS,
12* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13* See the License for the specific language governing permissions and
14* limitations under the License.
15*/
16
17package com.google.common.collect.testing;
18
19import static com.google.common.collect.testing.features.CollectionFeature.SERIALIZABLE;
20import static com.google.common.collect.testing.features.CollectionFeature.SERIALIZABLE_INCLUDING_VIEWS;
21
22import com.google.common.annotations.GwtIncompatible;
23import com.google.common.collect.testing.features.Feature;
24import com.google.common.testing.SerializableTester;
25import java.util.ArrayList;
26import java.util.Collection;
27import java.util.HashSet;
28import java.util.List;
29import java.util.Set;
30import junit.framework.TestSuite;
31
32/**
33* Concrete instantiation of {@link AbstractCollectionTestSuiteBuilder} for testing collections that
34* do not have a more specific tester like {@link ListTestSuiteBuilder} or {@link
35* SetTestSuiteBuilder}.
36*
37* @author Chris Povirk
38* @author Louis Wasserman
39*/
40@GwtIncompatible
41public class CollectionTestSuiteBuilder<E>
42extends AbstractCollectionTestSuiteBuilder<CollectionTestSuiteBuilder<E>, E> {
43public static <E> CollectionTestSuiteBuilder<E> using(TestCollectionGenerator<E> generator) {
44return new CollectionTestSuiteBuilder<E>().usingGenerator(generator);
45}
46
47@Override
48protected List<TestSuite> createDerivedSuites(
49FeatureSpecificTestSuiteBuilder<?, ? extends OneSizeTestContainerGenerator<Collection<E>, E>>
50parentBuilder) {
51List<TestSuite> derivedSuites = new ArrayList<>(super.createDerivedSuites(parentBuilder));
52
53if (parentBuilder.getFeatures().contains(SERIALIZABLE)) {
54derivedSuites.add(
55CollectionTestSuiteBuilder.using(
56new ReserializedCollectionGenerator<E>(parentBuilder.getSubjectGenerator()))
57.named(getName() + " reserialized")
58.withFeatures(computeReserializedCollectionFeatures(parentBuilder.getFeatures()))
59.suppressing(parentBuilder.getSuppressedTests())
60.withSetUp(parentBuilder.getSetUp())
61.withTearDown(parentBuilder.getTearDown())
62.createTestSuite());
63}
64return derivedSuites;
65}
66
67static class ReserializedCollectionGenerator<E> implements TestCollectionGenerator<E> {
68final OneSizeTestContainerGenerator<Collection<E>, E> gen;
69
70private ReserializedCollectionGenerator(OneSizeTestContainerGenerator<Collection<E>, E> gen) {
71this.gen = gen;
72}
73
74@Override
75public SampleElements<E> samples() {
76return gen.samples();
77}
78
79@Override
80public Collection<E> create(Object... elements) {
81return SerializableTester.reserialize(gen.create(elements));
82}
83
84@Override
85public E[] createArray(int length) {
86return gen.createArray(length);
87}
88
89@Override
90public Iterable<E> order(List<E> insertionOrder) {
91return gen.order(insertionOrder);
92}
93}
94
95private static Set<Feature<?>> computeReserializedCollectionFeatures(Set<Feature<?>> features) {
96Set<Feature<?>> derivedFeatures = new HashSet<>(features);
97derivedFeatures.remove(SERIALIZABLE);
98derivedFeatures.remove(SERIALIZABLE_INCLUDING_VIEWS);
99return derivedFeatures;
100}
101}
102