1 /* 2 * Copyright (C) 2007 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 17 package com.google.common.collect.testing; 18 19 import java.util.ArrayList; 20 import java.util.List; 21 import java.util.ListIterator; 22 23 /** 24 * A utility similar to {@link IteratorTester} for testing a 25 * {@link ListIterator} against a known good reference implementation. As with 26 * {@code IteratorTester}, a concrete subclass must provide target iterators on 27 * demand. It also requires three additional constructor parameters: 28 * {@code elementsToInsert}, the elements to be passed to {@code set()} and 29 * {@code add()} calls; {@code features}, the features supported by the 30 * iterator; and {@code expectedElements}, the elements the iterator should 31 * return in order. 32 * <p> 33 * The items in {@code elementsToInsert} will be repeated if {@code steps} is 34 * larger than the number of provided elements. 35 * 36 * <p>This class is GWT compatible. 37 * 38 * @author Chris Povirk 39 */ 40 public abstract class ListIteratorTester<E> extends 41 AbstractIteratorTester<E, ListIterator<E>> { 42 protected ListIteratorTester(int steps, Iterable<E> elementsToInsert, 43 Iterable<? extends IteratorFeature> features, 44 Iterable<E> expectedElements, int startIndex) { 45 super(steps, elementsToInsert, features, expectedElements, 46 KnownOrder.KNOWN_ORDER, startIndex); 47 } 48 49 @Override 50 protected final Iterable<? extends Stimulus<E, ? super ListIterator<E>>> 51 getStimulusValues() { 52 List<Stimulus<E, ? super ListIterator<E>>> list = 53 new ArrayList<Stimulus<E, ? super ListIterator<E>>>(); 54 Helpers.addAll(list, iteratorStimuli()); 55 Helpers.addAll(list, listIteratorStimuli()); 56 return list; 57 } 58 59 @Override protected abstract ListIterator<E> newTargetIterator(); 60 } 61
