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

1 /*
2  * Copyright (C) 2013 The Guava Authors
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5  * in compliance with the License. You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software distributed under the License
10  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11  * or implied. See the License for the specific language governing permissions and limitations under
12  * the License.
13  */
14 
15 package com.google.common.collect.testing.google;
16 
17 import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_VALUES;
18 import static com.google.common.collect.testing.features.CollectionSize.ZERO;
19 
20 import com.google.common.annotations.GwtCompatible;
21 import com.google.common.collect.testing.features.CollectionFeature;
22 import com.google.common.collect.testing.features.CollectionSize;
23 import com.google.common.testing.EqualsTester;
24 import org.junit.Ignore;
25 
26 /**
27  * Tests for {@code Multiset.equals} and {@code Multiset.hashCode}.
28  *
29  * @author Louis Wasserman
30  */
31 @GwtCompatible
32 @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
33 public class MultisetEqualsTester<E> extends AbstractMultisetTester<E> {
34   public void testEqualsSameContents() {
35     new EqualsTester()
36         .addEqualityGroup(
37             getMultiset(), getSubjectGenerator().create(getSampleElements().toArray()))
38         .testEquals();
39   }
40 
41   @CollectionSize.Require(absent = ZERO)
42   public void testNotEqualsEmpty() {
43     new EqualsTester()
44         .addEqualityGroup(getMultiset())
45         .addEqualityGroup(getSubjectGenerator().create())
46         .testEquals();
47   }
48 
49   public void testHashCodeMatchesEntrySet() {
50     assertEquals(getMultiset().entrySet().hashCode(), getMultiset().hashCode());
51   }
52 
53   @CollectionSize.Require(absent = ZERO)
54   @CollectionFeature.Require(ALLOWS_NULL_VALUES)
55   public void testEqualsMultisetWithNullValue() {
56     new EqualsTester()
57         .addEqualityGroup(getMultiset())
58         .addEqualityGroup(
59             getSubjectGenerator().create(createArrayWithNullElement()),
60             getSubjectGenerator().create(createArrayWithNullElement()))
61         .testEquals();
62   }
63 }