1/*
2 * Copyright (C) 2008 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
17package com.google.common.collect.testing.testers;
18
19import static com.google.common.collect.testing.features.CollectionFeature.REJECTS_DUPLICATES_AT_CREATION;
20import static com.google.common.collect.testing.features.CollectionSize.ONE;
21import static com.google.common.collect.testing.features.CollectionSize.ZERO;
22
23import com.google.common.collect.testing.features.CollectionFeature;
24import com.google.common.collect.testing.features.CollectionSize;
25
26/**
27 * A generic JUnit test which tests {@code indexOf()} operations on a list.
28 * Can't be invoked directly; please see
29 * {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
30 *
31 * <p>This class is GWT compatible.
32 *
33 * @author Chris Povirk
34 */
35public class ListIndexOfTester<E> extends AbstractListIndexOfTester<E> {
36  @Override protected int find(Object o) {
37    return getList().indexOf(o);
38  }
39
40  @Override protected String getMethodName() {
41    return "indexOf";
42  }
43
44  @CollectionFeature.Require(absent = REJECTS_DUPLICATES_AT_CREATION)
45  @CollectionSize.Require(absent = {ZERO, ONE})
46  public void testIndexOf_duplicate() {
47    E[] array = createSamplesArray();
48    array[getNumElements() / 2] = samples.e0;
49    collection = getSubjectGenerator().create(array);
50    assertEquals("indexOf(duplicate) should return index of first occurrence",
51        0, getList().indexOf(samples.e0));
52  }
53}
54