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
17package com.google.common.collect.testing.testers;
18
19import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ADD_ALL;
20import static com.google.common.collect.testing.features.CollectionSize.ZERO;
21
22import com.google.common.collect.testing.MinimalCollection;
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 addAll(Collection)} operations on a
28 * list. 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 */
35@SuppressWarnings("unchecked") // too many "unchecked generic array creations"
36public class ListAddAllTester<E> extends AbstractListTester<E> {
37  @CollectionFeature.Require(SUPPORTS_ADD_ALL)
38  @CollectionSize.Require(absent = ZERO)
39  public void testAddAll_supportedAllPresent() {
40    assertTrue("addAll(allPresent) should return true",
41        getList().addAll(MinimalCollection.of(samples.e0)));
42    expectAdded(samples.e0);
43  }
44
45  @CollectionFeature.Require(absent = SUPPORTS_ADD_ALL)
46  @CollectionSize.Require(absent = ZERO)
47  public void testAddAll_unsupportedAllPresent() {
48    try {
49      getList().addAll(MinimalCollection.of(samples.e0));
50      fail("addAll(allPresent) should throw");
51    } catch (UnsupportedOperationException expected) {
52    }
53    expectUnchanged();
54  }
55
56  @CollectionFeature.Require(SUPPORTS_ADD_ALL)
57  public void testAddAll_withDuplicates() {
58    MinimalCollection<E> elementsToAdd
59        = MinimalCollection.of(samples.e0, samples.e1, samples.e0, samples.e1);
60    assertTrue("addAll(hasDuplicates) should return true",
61        getList().addAll(elementsToAdd));
62    expectAdded(samples.e0, samples.e1, samples.e0, samples.e1);
63  }
64}
65