/
ListRetainAllTester.java
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ListRetainAllTester.java
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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.testers;
import static com.google.common.collect.testing.Helpers.assertContentsInOrder;
import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_REMOVE;
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.collect.testing.MinimalCollection;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import java.util.Arrays;
import org.junit.Ignore;
/**
* A generic JUnit test which tests {@code retainAll} operations on a list. Can't be invoked
* directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
*
* @author Chris Povirk
*/
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
public class ListRetainAllTester<E> extends AbstractListTester<E> {
@CollectionFeature.Require(SUPPORTS_REMOVE)
@CollectionSize.Require(absent = {ZERO, ONE})
public void testRetainAll_duplicatesKept() {
E[] array = createSamplesArray();
array[1] = e0();
collection = getSubjectGenerator().create(array);
assertFalse(
"containsDuplicates.retainAll(superset) should return false",
collection.retainAll(MinimalCollection.of(createSamplesArray())));
expectContents(array);
}
@CollectionFeature.Require(SUPPORTS_REMOVE)
@CollectionSize.Require(SEVERAL)
public void testRetainAll_duplicatesRemoved() {
E[] array = createSamplesArray();
array[1] = e0();
collection = getSubjectGenerator().create(array);
assertTrue(
"containsDuplicates.retainAll(subset) should return true",
collection.retainAll(MinimalCollection.of(e2())));
expectContents(e2());
}
@CollectionFeature.Require(SUPPORTS_REMOVE)
@CollectionSize.Require(SEVERAL)
public void testRetainAll_countIgnored() {
resetContainer(getSubjectGenerator().create(e0(), e2(), e1(), e0()));
assertTrue(getList().retainAll(Arrays.asList(e0(), e1())));
assertContentsInOrder(getList(), e0(), e1(), e0());
}
}