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Java example source code file (ListIteratorTester.java)

This example Java source code file (ListIteratorTester.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

abstractiteratortester, arraylist, gwtcompatible, iterable, iteratorfeature, listiterator, listiteratortester, override, stimulus, util

The ListIteratorTester.java Java example source code

/*
 * 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;

import com.google.common.annotations.GwtCompatible;

import java.util.ArrayList;
import java.util.List;
import java.util.ListIterator;

/**
 * A utility similar to {@link IteratorTester} for testing a
 * {@link ListIterator} against a known good reference implementation. As with
 * {@code IteratorTester}, a concrete subclass must provide target iterators on
 * demand. It also requires three additional constructor parameters:
 * {@code elementsToInsert}, the elements to be passed to {@code set()} and
 * {@code add()} calls; {@code features}, the features supported by the
 * iterator; and {@code expectedElements}, the elements the iterator should
 * return in order.
 * <p>
 * The items in {@code elementsToInsert} will be repeated if {@code steps} is
 * larger than the number of provided elements.
 *
 * @author Chris Povirk
 */
@GwtCompatible
public abstract class ListIteratorTester<E> extends AbstractIteratorTester> {
  protected ListIteratorTester(
      int steps,
      Iterable<E> elementsToInsert,
      Iterable<? extends IteratorFeature> features,
      Iterable<E> expectedElements,
      int startIndex) {
    super(steps, elementsToInsert, features, expectedElements, KnownOrder.KNOWN_ORDER, startIndex);
  }

  @Override
  protected final Iterable<? extends Stimulus> getStimulusValues() {
    List<Stimulus> list =
        new ArrayList<Stimulus>();
    Helpers.addAll(list, iteratorStimuli());
    Helpers.addAll(list, listIteratorStimuli());
    return list;
  }

  @Override
  protected abstract ListIterator<E> newTargetIterator();
}

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