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.ALLOWS_NULL_QUERIES; 020import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_VALUES; 021import static com.google.common.collect.testing.features.CollectionSize.ZERO; 022 023import com.google.common.annotations.GwtCompatible; 024import com.google.common.collect.testing.AbstractCollectionTester; 025import com.google.common.collect.testing.MinimalCollection; 026import com.google.common.collect.testing.WrongType; 027import com.google.common.collect.testing.features.CollectionFeature; 028import com.google.common.collect.testing.features.CollectionSize; 029import java.util.Collection; 030import org.junit.Ignore; 031 032/** 033 * A generic JUnit test which tests {@code containsAll()} operations on a collection. Can't be 034 * invoked directly; please see {@link 035 * com.google.common.collect.testing.CollectionTestSuiteBuilder}. 036 * 037 * @author Kevin Bourrillion 038 * @author Chris Povirk 039 */ 040@GwtCompatible 041@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 042public class CollectionContainsAllTester<E> extends AbstractCollectionTester<E> { 043 public void testContainsAll_empty() { 044 assertTrue( 045 "containsAll(empty) should return true", collection.containsAll(MinimalCollection.of())); 046 } 047 048 @CollectionSize.Require(absent = ZERO) 049 public void testContainsAll_subset() { 050 assertTrue( 051 "containsAll(subset) should return true", 052 collection.containsAll(MinimalCollection.of(e0()))); 053 } 054 055 public void testContainsAll_sameElements() { 056 assertTrue( 057 "containsAll(sameElements) should return true", 058 collection.containsAll(MinimalCollection.of(createSamplesArray()))); 059 } 060 061 @SuppressWarnings("ModifyingCollectionWithItself") 062 public void testContainsAll_self() { 063 assertTrue("containsAll(this) should return true", collection.containsAll(collection)); 064 } 065 066 public void testContainsAll_partialOverlap() { 067 assertFalse( 068 "containsAll(partialOverlap) should return false", 069 collection.containsAll(MinimalCollection.of(e0(), e3()))); 070 } 071 072 public void testContainsAll_disjoint() { 073 assertFalse( 074 "containsAll(disjoint) should return false", 075 collection.containsAll(MinimalCollection.of(e3()))); 076 } 077 078 @CollectionFeature.Require(absent = ALLOWS_NULL_QUERIES) 079 public void testContainsAll_nullNotAllowed() { 080 try { 081 assertFalse(collection.containsAll(MinimalCollection.of((E) null))); 082 } catch (NullPointerException tolerated) { 083 } 084 } 085 086 @CollectionFeature.Require(ALLOWS_NULL_QUERIES) 087 public void testContainsAll_nullAllowed() { 088 assertFalse(collection.containsAll(MinimalCollection.of((E) null))); 089 } 090 091 @CollectionFeature.Require(ALLOWS_NULL_VALUES) 092 @CollectionSize.Require(absent = ZERO) 093 public void testContainsAll_nullPresent() { 094 initCollectionWithNullElement(); 095 assertTrue(collection.containsAll(MinimalCollection.of((E) null))); 096 } 097 098 public void testContainsAll_wrongType() { 099 Collection<WrongType> wrong = MinimalCollection.of(WrongType.VALUE); 100 try { 101 assertFalse( 102 "containsAll(wrongType) should return false or throw", collection.containsAll(wrong)); 103 } catch (ClassCastException tolerated) { 104 } 105 } 106}