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/*
* Copyright (C) 2007 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.IteratorFeature.MODIFIABLE;
import static com.google.common.collect.testing.IteratorFeature.UNMODIFIABLE;
import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_REMOVE;
import static com.google.common.collect.testing.features.ListFeature.SUPPORTS_ADD_WITH_INDEX;
import static com.google.common.collect.testing.features.ListFeature.SUPPORTS_SET;
import static com.google.common.collect.testing.testers.Platform.listListIteratorTesterNumIterations;
import static java.util.Collections.singleton;
import com.google.common.collect.testing.Helpers;
import com.google.common.collect.testing.IteratorFeature;
import com.google.common.collect.testing.ListIteratorTester;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.ListFeature;
import java.lang.reflect.Method;
import java.util.List;
import java.util.ListIterator;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
/**
* A generic JUnit test which tests {@code listIterator} operations on a list.
* Can't be invoked directly; please see
* {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
*
* <p>This class is GWT compatible.
*
* @author Chris Povirk
* @author Kevin Bourrillion
*/
public class ListListIteratorTester<E> extends AbstractListTester<E> {
// TODO: switch to DerivedIteratorTestSuiteBuilder
@CollectionFeature.Require(absent = SUPPORTS_REMOVE)
@ListFeature.Require(absent = {SUPPORTS_SET, SUPPORTS_ADD_WITH_INDEX})
public void testListIterator_unmodifiable() {
runListIteratorTest(UNMODIFIABLE);
}
/*
* For now, we don't cope with testing this when the list supports only some
* modification operations.
*/
@CollectionFeature.Require(SUPPORTS_REMOVE)
@ListFeature.Require({SUPPORTS_SET, SUPPORTS_ADD_WITH_INDEX})
public void testListIterator_fullyModifiable() {
runListIteratorTest(MODIFIABLE);
}
private void runListIteratorTest(Set<IteratorFeature> features) {
new ListIteratorTester<E>(
listListIteratorTesterNumIterations(), singleton(samples.e4), features,
Helpers.copyToList(getSampleElements()), 0) {
{
// TODO: don't set this universally
stopTestingWhenAddThrowsException();
}
@Override protected ListIterator<E> newTargetIterator() {
resetCollection();
return getList().listIterator();
}
@Override protected void verify(List<E> elements) {
expectContents(elements);
}
}.test();
}
public void testListIterator_tooLow() {
try {
getList().listIterator(-1);
fail();
} catch (IndexOutOfBoundsException expected) {
}
}
public void testListIterator_tooHigh() {
try {
getList().listIterator(getNumElements() + 1);
fail();
} catch (IndexOutOfBoundsException expected) {
}
}
public void testListIterator_atSize() {
getList().listIterator(getNumElements());
// TODO: run the iterator through ListIteratorTester
}
/**
* Returns the {@link Method} instance for
* {@link #testListIterator_fullyModifiable()} so that tests of
* {@link CopyOnWriteArraySet} can suppress it with
* {@code FeatureSpecificTestSuiteBuilder.suppressing()} until <a
* href="http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6570575">Sun bug
* 6570575</a> is fixed.
*/
public static Method getListIteratorFullyModifiableMethod() {
return Platform.getMethod(
ListListIteratorTester.class, "testListIterator_fullyModifiable");
}
/**
* Returns the {@link Method} instance for
* {@link #testListIterator_unmodifiable()} so that it can be suppressed in
* GWT tests.
*/
public static Method getListIteratorUnmodifiableMethod() {
return Platform.getMethod(
ListListIteratorTester.class, "testListIterator_unmodifiable");
}
}
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