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  
17  package com.google.common.collect.testing.google;
18  
19  import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE;
20  
21  import com.google.common.annotations.GwtCompatible;
22  import com.google.common.collect.BiMap;
23  import com.google.common.collect.testing.features.MapFeature;
24  
25  /**
26   * Tester for {@code BiMap.clear}.
27   *
28   * @author Louis Wasserman
29   */
30  @GwtCompatible
31  public class BiMapClearTester<K, V> extends AbstractBiMapTester<K, V> {
32    @MapFeature.Require(SUPPORTS_REMOVE)
33    public void testClearClearsInverse() {
34      BiMap<V, K> inv = getMap().inverse();
35      getMap().clear();
36      assertTrue(getMap().isEmpty());
37      assertTrue(inv.isEmpty());
38    }
39  
40    @MapFeature.Require(SUPPORTS_REMOVE)
41    public void testKeySetClearClearsInverse() {
42      BiMap<V, K> inv = getMap().inverse();
43      getMap().keySet().clear();
44      assertTrue(getMap().isEmpty());
45      assertTrue(inv.isEmpty());
46    }
47  
48    @MapFeature.Require(SUPPORTS_REMOVE)
49    public void testValuesClearClearsInverse() {
50      BiMap<V, K> inv = getMap().inverse();
51      getMap().values().clear();
52      assertTrue(getMap().isEmpty());
53      assertTrue(inv.isEmpty());
54    }
55  
56    @MapFeature.Require(SUPPORTS_REMOVE)
57    public void testClearInverseClears() {
58      BiMap<V, K> inv = getMap().inverse();
59      inv.clear();
60      assertTrue(getMap().isEmpty());
61      assertTrue(inv.isEmpty());
62    }
63  
64    @MapFeature.Require(SUPPORTS_REMOVE)
65    public void testClearInverseKeySetClears() {
66      BiMap<V, K> inv = getMap().inverse();
67      inv.keySet().clear();
68      assertTrue(getMap().isEmpty());
69      assertTrue(inv.isEmpty());
70    }
71  
72    @MapFeature.Require(SUPPORTS_REMOVE)
73    public void testClearInverseValuesClears() {
74      BiMap<V, K> inv = getMap().inverse();
75      inv.values().clear();
76      assertTrue(getMap().isEmpty());
77      assertTrue(inv.isEmpty());
78    }
79  }