001/* 002 * Copyright (C) 2013 The Guava Authors 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 005 * in compliance with the License. You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software distributed under the License 010 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 011 * or implied. See the License for the specific language governing permissions and limitations under 012 * the License. 013 */ 014 015package com.google.common.collect.testing.google; 016 017import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_VALUES; 018import static com.google.common.collect.testing.features.CollectionSize.ZERO; 019 020import com.google.common.annotations.GwtCompatible; 021import com.google.common.collect.testing.features.CollectionFeature; 022import com.google.common.collect.testing.features.CollectionSize; 023import com.google.common.testing.EqualsTester; 024import org.junit.Ignore; 025 026/** 027 * Tests for {@code Multiset.equals} and {@code Multiset.hashCode}. 028 * 029 * @author Louis Wasserman 030 */ 031@GwtCompatible 032@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 033public class MultisetEqualsTester<E> extends AbstractMultisetTester<E> { 034 public void testEqualsSameContents() { 035 new EqualsTester() 036 .addEqualityGroup( 037 getMultiset(), getSubjectGenerator().create(getSampleElements().toArray())) 038 .testEquals(); 039 } 040 041 @CollectionSize.Require(absent = ZERO) 042 public void testNotEqualsEmpty() { 043 new EqualsTester() 044 .addEqualityGroup(getMultiset()) 045 .addEqualityGroup(getSubjectGenerator().create()) 046 .testEquals(); 047 } 048 049 public void testHashCodeMatchesEntrySet() { 050 assertEquals(getMultiset().entrySet().hashCode(), getMultiset().hashCode()); 051 } 052 053 @CollectionSize.Require(absent = ZERO) 054 @CollectionFeature.Require(ALLOWS_NULL_VALUES) 055 public void testEqualsMultisetWithNullValue() { 056 new EqualsTester() 057 .addEqualityGroup(getMultiset()) 058 .addEqualityGroup( 059 getSubjectGenerator().create(createArrayWithNullElement()), 060 getSubjectGenerator().create(createArrayWithNullElement())) 061 .testEquals(); 062 } 063}