Coverage Summary for Class: MultimapPutAllMultimapTester (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.Helpers.assertContains;
20 import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS;
21 import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES;
22 import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_PUT;
23 
24 import com.google.common.annotations.GwtCompatible;
25 import com.google.common.collect.Multimap;
26 import com.google.common.collect.testing.Helpers;
27 import com.google.common.collect.testing.features.MapFeature;
28 import java.util.Collection;
29 import org.junit.Ignore;
30 
31 /**
32  * Tester for {@link Multimap#putAll(Multimap)}.
33  *
34  * @author Louis Wasserman
35  */
36 @GwtCompatible
37 @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
38 public class MultimapPutAllMultimapTester<K, V>
39     extends AbstractMultimapTester<K, V, Multimap<K, V>> {
40   @MapFeature.Require(absent = SUPPORTS_PUT)
41   public void testPutUnsupported() {
42     try {
43       multimap().putAll(getSubjectGenerator().create(Helpers.mapEntry(k3(), v3())));
44       fail("Expected UnsupportedOperationException");
45     } catch (UnsupportedOperationException expected) {
46     }
47   }
48 
49   @MapFeature.Require(SUPPORTS_PUT)
50   public void testPutAllIntoEmpty() {
51     Multimap<K, V> target = getSubjectGenerator().create();
52     assertEquals(!multimap().isEmpty(), target.putAll(multimap()));
53     assertEquals(multimap(), target);
54   }
55 
56   @MapFeature.Require(SUPPORTS_PUT)
57   public void testPutAll() {
58     Multimap<K, V> source =
59         getSubjectGenerator().create(Helpers.mapEntry(k0(), v3()), Helpers.mapEntry(k3(), v3()));
60     assertTrue(multimap().putAll(source));
61     assertTrue(multimap().containsEntry(k0(), v3()));
62     assertTrue(multimap().containsEntry(k3(), v3()));
63   }
64 
65   @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
66   public void testPutAllWithNullValue() {
67     Multimap<K, V> source = getSubjectGenerator().create(Helpers.mapEntry(k0(), null));
68     assertTrue(multimap().putAll(source));
69     assertTrue(multimap().containsEntry(k0(), null));
70   }
71 
72   @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_KEYS})
73   public void testPutAllWithNullKey() {
74     Multimap<K, V> source = getSubjectGenerator().create(Helpers.mapEntry(null, v0()));
75     assertTrue(multimap().putAll(source));
76     assertTrue(multimap().containsEntry(null, v0()));
77   }
78 
79   @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)
80   public void testPutAllRejectsNullValue() {
81     Multimap<K, V> source = getSubjectGenerator().create(Helpers.mapEntry(k0(), null));
82     try {
83       multimap().putAll(source);
84       fail("Expected NullPointerException");
85     } catch (NullPointerException expected) {
86     }
87     expectUnchanged();
88   }
89 
90   @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_KEYS)
91   public void testPutAllRejectsNullKey() {
92     Multimap<K, V> source = getSubjectGenerator().create(Helpers.mapEntry(null, v0()));
93     try {
94       multimap().putAll(source);
95       fail("Expected NullPointerException");
96     } catch (NullPointerException expected) {
97     }
98     expectUnchanged();
99   }
100 
101   @MapFeature.Require(SUPPORTS_PUT)
102   public void testPutAllPropagatesToGet() {
103     Multimap<K, V> source =
104         getSubjectGenerator().create(Helpers.mapEntry(k0(), v3()), Helpers.mapEntry(k3(), v3()));
105     Collection<V> getCollection = multimap().get(k0());
106     int getCollectionSize = getCollection.size();
107     assertTrue(multimap().putAll(source));
108     assertEquals(getCollectionSize + 1, getCollection.size());
109     assertContains(getCollection, v3());
110   }
111 }