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/*
* 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;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.Feature;
import com.google.common.testing.SerializableTester;
import junit.framework.TestSuite;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* Concrete instantiation of {@link AbstractCollectionTestSuiteBuilder} for
* testing collections that do not have a more specific tester like
* {@link ListTestSuiteBuilder} or {@link SetTestSuiteBuilder}.
*
* @author Chris Povirk
* @author Louis Wasserman
*/
public class CollectionTestSuiteBuilder<E>
extends AbstractCollectionTestSuiteBuilder<
CollectionTestSuiteBuilder<E>, E> {
public static <E> CollectionTestSuiteBuilder<E> using(
TestCollectionGenerator<E> generator) {
return new CollectionTestSuiteBuilder<E>().usingGenerator(generator);
}
@Override
protected
List<TestSuite>
createDerivedSuites(
FeatureSpecificTestSuiteBuilder<
?, ? extends OneSizeTestContainerGenerator<Collection<E>, E>> parentBuilder) {
List<TestSuite> derivedSuites = new ArrayList<TestSuite>(
super.createDerivedSuites(parentBuilder));
if (parentBuilder.getFeatures().contains(CollectionFeature.SERIALIZABLE)) {
derivedSuites.add(CollectionTestSuiteBuilder
.using(new ReserializedCollectionGenerator<E>(parentBuilder.getSubjectGenerator()))
.named(getName() + " reserialized")
.withFeatures(computeReserializedCollectionFeatures(parentBuilder.getFeatures()))
.suppressing(parentBuilder.getSuppressedTests())
.createTestSuite());
}
return derivedSuites;
}
static class ReserializedCollectionGenerator<E> implements TestCollectionGenerator<E> {
final OneSizeTestContainerGenerator<Collection<E>, E> gen;
private ReserializedCollectionGenerator(OneSizeTestContainerGenerator<Collection<E>, E> gen) {
this.gen = gen;
}
@Override
public SampleElements<E> samples() {
return gen.samples();
}
@Override
public Collection<E> create(Object... elements) {
return SerializableTester.reserialize(gen.create(elements));
}
@Override
public E[] createArray(int length) {
return gen.createArray(length);
}
@Override
public Iterable<E> order(List<E> insertionOrder) {
return gen.order(insertionOrder);
}
}
private static Set<Feature<?>> computeReserializedCollectionFeatures(Set<Feature<?>> features) {
Set<Feature<?>> derivedFeatures = new HashSet<Feature<?>>();
derivedFeatures.addAll(features);
derivedFeatures.remove(CollectionFeature.SERIALIZABLE);
derivedFeatures.remove(CollectionFeature.SERIALIZABLE_INCLUDING_VIEWS);
return derivedFeatures;
}
}
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