Coverage Summary for Class: MultisetAddTester (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");
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.google;
18 
19 import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ADD;
20 
21 import com.google.common.annotations.GwtCompatible;
22 import com.google.common.collect.testing.features.CollectionFeature;
23 import java.util.Arrays;
24 import java.util.Collections;
25 import org.junit.Ignore;
26 
27 /**
28  * Tests for {@code Multiset.add}.
29  *
30  * @author Jared Levy
31  */
32 @GwtCompatible
33 @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
34 public class MultisetAddTester<E> extends AbstractMultisetTester<E> {
35   @CollectionFeature.Require(absent = SUPPORTS_ADD)
36   public void testAddUnsupported() {
37     try {
38       getMultiset().add(e0());
39       fail("Expected UnsupportedOperationException");
40     } catch (UnsupportedOperationException expected) {
41     }
42   }
43 
44   @CollectionFeature.Require(SUPPORTS_ADD)
45   public void testAddMeansAddOne() {
46     int originalCount = getMultiset().count(e0());
47     assertTrue(getMultiset().add(e0()));
48     assertEquals(originalCount + 1, getMultiset().count(e0()));
49   }
50 
51   @CollectionFeature.Require(SUPPORTS_ADD)
52   public void testAddOccurrencesZero() {
53     int originalCount = getMultiset().count(e0());
54     assertEquals("old count", originalCount, getMultiset().add(e0(), 0));
55     expectUnchanged();
56   }
57 
58   @CollectionFeature.Require(SUPPORTS_ADD)
59   public void testAddOccurrences() {
60     int originalCount = getMultiset().count(e0());
61     assertEquals("old count", originalCount, getMultiset().add(e0(), 2));
62     assertEquals("old count", originalCount + 2, getMultiset().count(e0()));
63   }
64 
65   @CollectionFeature.Require(SUPPORTS_ADD)
66   public void testAddSeveralTimes() {
67     int originalCount = getMultiset().count(e0());
68     assertEquals(originalCount, getMultiset().add(e0(), 2));
69     assertTrue(getMultiset().add(e0()));
70     assertEquals(originalCount + 3, getMultiset().add(e0(), 1));
71     assertEquals(originalCount + 4, getMultiset().count(e0()));
72   }
73 
74   @CollectionFeature.Require(absent = SUPPORTS_ADD)
75   public void testAddOccurrences_unsupported() {
76     try {
77       getMultiset().add(e0(), 2);
78       fail("unsupported multiset.add(E, int) didn't throw exception");
79     } catch (UnsupportedOperationException required) {
80     }
81   }
82 
83   @CollectionFeature.Require(SUPPORTS_ADD)
84   public void testAddOccurrencesNegative() {
85     try {
86       getMultiset().add(e0(), -1);
87       fail("multiset.add(E, -1) didn't throw an exception");
88     } catch (IllegalArgumentException required) {
89     }
90   }
91 
92   @CollectionFeature.Require(SUPPORTS_ADD)
93   public void testAddTooMany() {
94     getMultiset().add(e3(), Integer.MAX_VALUE);
95     try {
96       getMultiset().add(e3());
97       fail();
98     } catch (IllegalArgumentException expected) {
99     }
100     assertEquals(Integer.MAX_VALUE, getMultiset().count(e3()));
101     assertEquals(Integer.MAX_VALUE, getMultiset().size());
102   }
103 
104   @CollectionFeature.Require(SUPPORTS_ADD)
105   public void testAddAll_emptySet() {
106     assertFalse(getMultiset().addAll(Collections.<E>emptySet()));
107     expectUnchanged();
108   }
109 
110   @CollectionFeature.Require(SUPPORTS_ADD)
111   public void testAddAll_emptyMultiset() {
112     assertFalse(getMultiset().addAll(getSubjectGenerator().create()));
113     expectUnchanged();
114   }
115 
116   @CollectionFeature.Require(SUPPORTS_ADD)
117   public void testAddAll_nonEmptyList() {
118     assertTrue(getMultiset().addAll(Arrays.asList(e3(), e4(), e3())));
119     expectAdded(e3(), e4(), e3());
120   }
121 
122   @CollectionFeature.Require(SUPPORTS_ADD)
123   public void testAddAll_nonEmptyMultiset() {
124     assertTrue(getMultiset().addAll(getSubjectGenerator().create(e3(), e4(), e3())));
125     expectAdded(e3(), e4(), e3());
126   }
127 }