1   /*
2    * Copyright (C) 2011 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;
18  
19  import com.google.common.annotations.GwtIncompatible;
20  import com.google.common.base.Predicate;
21  
22  import java.util.Collection;
23  import java.util.Map;
24  import java.util.Map.Entry;
25  
26  /**
27   * Tests for Multimaps.filterEntries().asMap().
28   *
29   * @author Jared Levy
30   */
31  @GwtIncompatible(value = "untested")
32  public class MultimapsFilterEntriesAsMapTest
33      extends AbstractMultimapAsMapImplementsMapTest {
34    private static final Predicate<Map.Entry<String, Integer>> PREDICATE
35        = new Predicate<Map.Entry<String, Integer>>() {
36          @Override public boolean apply(Entry<String, Integer> entry) {
37            return !"badkey".equals(entry.getKey()) && 55556 != entry.getValue();
38          }
39        };
40  
41    public MultimapsFilterEntriesAsMapTest() {
42      super(true, true, false);
43    }
44  
45    private Multimap<String, Integer> createMultimap() {
46      Multimap<String, Integer> unfiltered = HashMultimap.create();
47      unfiltered.put("zero", 55556);
48      unfiltered.put("one", 55556);
49      unfiltered.put("badkey", 1);
50      return Multimaps.filterEntries(unfiltered, PREDICATE);
51    }
52  
53    @Override protected Map<String, Collection<Integer>> makeEmptyMap() {
54      Multimap<String, Integer> multimap = createMultimap();
55      return multimap.asMap();
56    }
57  
58    @Override protected Map<String, Collection<Integer>> makePopulatedMap() {
59      Multimap<String, Integer> multimap = createMultimap();
60      populate(multimap);
61      return multimap.asMap();
62    }
63  }