1 /*
2  * Copyright (C) 2012 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 package com.google.common.collect.testing.google;
17 
18 import com.google.common.annotations.GwtCompatible;
19 import com.google.common.collect.SetMultimap;
20 import com.google.common.collect.testing.Helpers;
21 import com.google.common.collect.testing.SampleElements;
22 
23 import java.util.Collection;
24 import java.util.List;
25 import java.util.Map;
26 import java.util.Map.Entry;
27 
28 /**
29  * A skeleton generator for a {@code SetMultimap} implementation.
30  *
31  * @author Louis Wasserman
32  */
33 @GwtCompatible
34 public abstract class TestStringSetMultimapGenerator
35     implements TestSetMultimapGenerator<String, String> {
36 
37   @Override
samples()38   public SampleElements<Map.Entry<String, String>> samples() {
39     return new SampleElements<Map.Entry<String, String>>(
40         Helpers.mapEntry("one", "January"),
41         Helpers.mapEntry("two", "February"),
42         Helpers.mapEntry("three", "March"),
43         Helpers.mapEntry("four", "April"),
44         Helpers.mapEntry("five", "May"));
45   }
46 
47   @Override
sampleKeys()48   public SampleElements<String> sampleKeys() {
49     return new SampleElements<String>("one", "two", "three", "four", "five");
50   }
51 
52   @Override
sampleValues()53   public SampleElements<String> sampleValues() {
54     return new SampleElements<String>("January", "February", "March", "April", "May");
55   }
56 
57   @Override
createCollection(Iterable<? extends String> values)58   public Collection<String> createCollection(Iterable<? extends String> values) {
59     return Helpers.copyToSet(values);
60   }
61 
62   @Override
create(Object... entries)63   public final SetMultimap<String, String> create(Object... entries) {
64     @SuppressWarnings("unchecked")
65     Entry<String, String>[] array = new Entry[entries.length];
66     int i = 0;
67     for (Object o : entries) {
68       @SuppressWarnings("unchecked")
69       Entry<String, String> e = (Entry<String, String>) o;
70       array[i++] = e;
71     }
72     return create(array);
73   }
74 
create( Entry<String, String>[] entries)75   protected abstract SetMultimap<String, String> create(
76       Entry<String, String>[] entries);
77 
78   @Override
79   @SuppressWarnings("unchecked")
createArray(int length)80   public final Entry<String, String>[] createArray(int length) {
81     return new Entry[length];
82   }
83 
84   @Override
createKeyArray(int length)85   public final String[] createKeyArray(int length) {
86     return new String[length];
87   }
88 
89   @Override
createValueArray(int length)90   public final String[] createValueArray(int length) {
91     return new String[length];
92   }
93 
94   /** Returns the original element list, unchanged. */
95   @Override
order( List<Entry<String, String>> insertionOrder)96   public Iterable<Entry<String, String>> order(
97       List<Entry<String, String>> insertionOrder) {
98     return insertionOrder;
99   }
100 }
101