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;
021
022import com.google.common.annotations.GwtCompatible;
023import com.google.common.collect.testing.MinimalCollection;
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 addAll operations on a set. Can't be invoked directly; please
029 * see {@link com.google.common.collect.testing.SetTestSuiteBuilder}.
030 *
031 * @author Kevin Bourrillion
032 */
033@GwtCompatible
034public class SetAddAllTester<E> extends AbstractSetTester<E> {
035  @CollectionFeature.Require(SUPPORTS_ADD)
036  @CollectionSize.Require(absent = ZERO)
037  public void testAddAll_supportedSomePresent() {
038    assertTrue(
039        "add(somePresent) should return true", getSet().addAll(MinimalCollection.of(e3(), e0())));
040    expectAdded(e3());
041  }
042
043  @CollectionFeature.Require(SUPPORTS_ADD)
044  public void testAddAll_withDuplicates() {
045    MinimalCollection<E> elementsToAdd = MinimalCollection.of(e3(), e4(), e3(), e4());
046    assertTrue("add(hasDuplicates) should return true", getSet().addAll(elementsToAdd));
047    expectAdded(e3(), e4());
048  }
049
050  @CollectionFeature.Require(SUPPORTS_ADD)
051  @CollectionSize.Require(absent = ZERO)
052  public void testAddAll_supportedAllPresent() {
053    assertFalse("add(allPresent) should return false", getSet().addAll(MinimalCollection.of(e0())));
054    expectUnchanged();
055  }
056}