/* * Copyright (C) 2013 The Guava Authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.google.common.collect.testing.google; import static com.google.common.collect.testing.Helpers.assertEmpty; import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ADD; import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_REMOVE; import static com.google.common.collect.testing.features.CollectionSize.SEVERAL; import static com.google.common.collect.testing.features.CollectionSize.ZERO; import com.google.common.annotations.GwtCompatible; import com.google.common.collect.testing.features.CollectionFeature; import com.google.common.collect.testing.features.CollectionSize; import java.util.Collections; import java.util.Set; /** * Tests for {@code Multiset.elementSet()} not covered by the derived {@code SetTestSuiteBuilder}. * * @author Louis Wasserman */ @GwtCompatible public class MultisetElementSetTester<E> extends AbstractMultisetTester<E> { @CollectionFeature.Require(SUPPORTS_ADD) public void testElementSetReflectsAddAbsent() { Set<E> elementSet = getMultiset().elementSet(); assertFalse(elementSet.contains(e3())); getMultiset().add(e3(), 4); assertTrue(elementSet.contains(e3())); } @CollectionSize.Require(absent = ZERO) @CollectionFeature.Require(SUPPORTS_REMOVE) public void testElementSetReflectsRemove() { Set<E> elementSet = getMultiset().elementSet(); assertTrue(elementSet.contains(e0())); getMultiset().removeAll(Collections.singleton(e0())); assertFalse(elementSet.contains(e0())); } @CollectionSize.Require(absent = ZERO) @CollectionFeature.Require(SUPPORTS_REMOVE) public void testElementSetRemovePropagatesToMultiset() { Set<E> elementSet = getMultiset().elementSet(); assertTrue(elementSet.remove(e0())); assertFalse(getMultiset().contains(e0())); } @CollectionSize.Require(SEVERAL) @CollectionFeature.Require(SUPPORTS_REMOVE) public void testElementSetRemoveDuplicatePropagatesToMultiset() { initThreeCopies(); Set<E> elementSet = getMultiset().elementSet(); assertTrue(elementSet.remove(e0())); assertEmpty(getMultiset()); } @CollectionFeature.Require(SUPPORTS_REMOVE) public void testElementSetRemoveAbsent() { Set<E> elementSet = getMultiset().elementSet(); assertFalse(elementSet.remove(e3())); expectUnchanged(); } @CollectionFeature.Require(SUPPORTS_REMOVE) public void testElementSetClear() { getMultiset().elementSet().clear(); assertEmpty(getMultiset()); } }