001/*
002 * Copyright (C) 2008 The Guava Authors
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package com.google.common.collect.testing.testers;
018
019import static com.google.common.collect.testing.features.CollectionFeature.REJECTS_DUPLICATES_AT_CREATION;
020import static com.google.common.collect.testing.features.CollectionSize.ONE;
021import static com.google.common.collect.testing.features.CollectionSize.ZERO;
022
023import com.google.common.annotations.GwtCompatible;
024import com.google.common.collect.testing.features.CollectionFeature;
025import com.google.common.collect.testing.features.CollectionSize;
026
027/**
028 * A generic JUnit test which tests {@code indexOf()} operations on a list. Can't be invoked
029 * directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
030 *
031 * @author Chris Povirk
032 */
033@GwtCompatible
034public class ListIndexOfTester<E> extends AbstractListIndexOfTester<E> {
035  @Override
036  protected int find(Object o) {
037    return getList().indexOf(o);
038  }
039
040  @Override
041  protected String getMethodName() {
042    return "indexOf";
043  }
044
045  @CollectionFeature.Require(absent = REJECTS_DUPLICATES_AT_CREATION)
046  @CollectionSize.Require(absent = {ZERO, ONE})
047  public void testIndexOf_duplicate() {
048    E[] array = createSamplesArray();
049    array[getNumElements() / 2] = e0();
050    collection = getSubjectGenerator().create(array);
051    assertEquals(
052        "indexOf(duplicate) should return index of first occurrence", 0, getList().indexOf(e0()));
053  }
054}