1 /* 2 * Copyright (C) 2007 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.collect.testing.testers; 18 19 import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_QUERIES; 20 import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_VALUES; 21 import static com.google.common.collect.testing.features.CollectionSize.ZERO; 22 23 import com.google.common.annotations.GwtCompatible; 24 import com.google.common.collect.testing.AbstractCollectionTester; 25 import com.google.common.collect.testing.MinimalCollection; 26 import com.google.common.collect.testing.WrongType; 27 import com.google.common.collect.testing.features.CollectionFeature; 28 import com.google.common.collect.testing.features.CollectionSize; 29 import java.util.Collection; 30 import org.junit.Ignore; 31 32 /** 33 * A generic JUnit test which tests {@code containsAll()} operations on a collection. Can't be 34 * invoked directly; please see {@link 35 * com.google.common.collect.testing.CollectionTestSuiteBuilder}. 36 * 37 * @author Kevin Bourrillion 38 * @author Chris Povirk 39 */ 40 @SuppressWarnings("unchecked") // too many "unchecked generic array creations" 41 @GwtCompatible 42 @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 43 public class CollectionContainsAllTester<E> extends AbstractCollectionTester<E> { testContainsAll_empty()44 public void testContainsAll_empty() { 45 assertTrue( 46 "containsAll(empty) should return true", collection.containsAll(MinimalCollection.of())); 47 } 48 49 @CollectionSize.Require(absent = ZERO) testContainsAll_subset()50 public void testContainsAll_subset() { 51 assertTrue( 52 "containsAll(subset) should return true", 53 collection.containsAll(MinimalCollection.of(e0()))); 54 } 55 testContainsAll_sameElements()56 public void testContainsAll_sameElements() { 57 assertTrue( 58 "containsAll(sameElements) should return true", 59 collection.containsAll(MinimalCollection.of(createSamplesArray()))); 60 } 61 62 @SuppressWarnings("ModifyingCollectionWithItself") testContainsAll_self()63 public void testContainsAll_self() { 64 assertTrue("containsAll(this) should return true", collection.containsAll(collection)); 65 } 66 testContainsAll_partialOverlap()67 public void testContainsAll_partialOverlap() { 68 assertFalse( 69 "containsAll(partialOverlap) should return false", 70 collection.containsAll(MinimalCollection.of(e0(), e3()))); 71 } 72 testContainsAll_disjoint()73 public void testContainsAll_disjoint() { 74 assertFalse( 75 "containsAll(disjoint) should return false", 76 collection.containsAll(MinimalCollection.of(e3()))); 77 } 78 79 @CollectionFeature.Require(absent = ALLOWS_NULL_QUERIES) testContainsAll_nullNotAllowed()80 public void testContainsAll_nullNotAllowed() { 81 try { 82 assertFalse(collection.containsAll(MinimalCollection.of((E) null))); 83 } catch (NullPointerException tolerated) { 84 } 85 } 86 87 @CollectionFeature.Require(ALLOWS_NULL_QUERIES) testContainsAll_nullAllowed()88 public void testContainsAll_nullAllowed() { 89 assertFalse(collection.containsAll(MinimalCollection.of((E) null))); 90 } 91 92 @CollectionFeature.Require(ALLOWS_NULL_VALUES) 93 @CollectionSize.Require(absent = ZERO) testContainsAll_nullPresent()94 public void testContainsAll_nullPresent() { 95 initCollectionWithNullElement(); 96 assertTrue(collection.containsAll(MinimalCollection.of((E) null))); 97 } 98 testContainsAll_wrongType()99 public void testContainsAll_wrongType() { 100 Collection<WrongType> wrong = MinimalCollection.of(WrongType.VALUE); 101 try { 102 assertFalse( 103 "containsAll(wrongType) should return false or throw", collection.containsAll(wrong)); 104 } catch (ClassCastException tolerated) { 105 } 106 } 107 } 108