001/*
002 * Copyright (C) 2007 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.SUPPORTS_ADD;
020import static com.google.common.collect.testing.features.CollectionSize.ZERO;
021import static org.junit.Assert.assertThrows;
022
023import com.google.common.annotations.GwtCompatible;
024import com.google.common.collect.testing.MinimalCollection;
025import com.google.common.collect.testing.features.CollectionFeature;
026import com.google.common.collect.testing.features.CollectionSize;
027
028/**
029 * A generic JUnit test which tests {@code addAll(Collection)} operations on a list. Can't be
030 * invoked directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
031 *
032 * @author Chris Povirk
033 */
034@GwtCompatible
035public class ListAddAllTester<E> extends AbstractListTester<E> {
036  @CollectionFeature.Require(SUPPORTS_ADD)
037  @CollectionSize.Require(absent = ZERO)
038  public void testAddAll_supportedAllPresent() {
039    assertTrue(
040        "addAll(allPresent) should return true", getList().addAll(MinimalCollection.of(e0())));
041    expectAdded(e0());
042  }
043
044  @CollectionFeature.Require(absent = SUPPORTS_ADD)
045  @CollectionSize.Require(absent = ZERO)
046  public void testAddAll_unsupportedAllPresent() {
047    assertThrows(
048        UnsupportedOperationException.class, () -> getList().addAll(MinimalCollection.of(e0())));
049    expectUnchanged();
050  }
051
052  @CollectionFeature.Require(SUPPORTS_ADD)
053  public void testAddAll_withDuplicates() {
054    MinimalCollection<E> elementsToAdd = MinimalCollection.of(e0(), e1(), e0(), e1());
055    assertTrue("addAll(hasDuplicates) should return true", getList().addAll(elementsToAdd));
056    expectAdded(e0(), e1(), e0(), e1());
057  }
058}