Coverage Summary for Class: CollectionContainsAllTester (com.google.common.collect.testing.testers)

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> {
44   public void testContainsAll_empty() {
45     assertTrue(
46         "containsAll(empty) should return true", collection.containsAll(MinimalCollection.of()));
47   }
48 
49   @CollectionSize.Require(absent = ZERO)
50   public void testContainsAll_subset() {
51     assertTrue(
52         "containsAll(subset) should return true",
53         collection.containsAll(MinimalCollection.of(e0())));
54   }
55 
56   public void testContainsAll_sameElements() {
57     assertTrue(
58         "containsAll(sameElements) should return true",
59         collection.containsAll(MinimalCollection.of(createSamplesArray())));
60   }
61 
62   @SuppressWarnings("ModifyingCollectionWithItself")
63   public void testContainsAll_self() {
64     assertTrue("containsAll(this) should return true", collection.containsAll(collection));
65   }
66 
67   public void testContainsAll_partialOverlap() {
68     assertFalse(
69         "containsAll(partialOverlap) should return false",
70         collection.containsAll(MinimalCollection.of(e0(), e3())));
71   }
72 
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)
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)
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)
94   public void testContainsAll_nullPresent() {
95     initCollectionWithNullElement();
96     assertTrue(collection.containsAll(MinimalCollection.of((E) null)));
97   }
98 
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 }