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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.commons.collections4.map;
19  
20  import java.util.EnumSet;
21  
22  import org.apache.commons.collections4.map.ConcurrentReferenceHashMap.Option;
23  
24  /**
25   * Tests {@link ConcurrentReferenceHashMap}.
26   *
27   * @param <K> the key type.
28   * @param <V> the value type.
29   */
30  public abstract class AbstractConcurrentReferenceHashMapTest<K, V> extends AbstractMapTest<ConcurrentReferenceHashMap<K, V>, K, V> {
31  
32      protected static final EnumSet<Option> IDENTITY_COMPARISONS = EnumSet.of(Option.IDENTITY_COMPARISONS);
33  
34      @Override
35      public boolean isAllowNullKey() {
36          return false;
37      }
38  
39      @Override
40      public boolean isAllowNullValueGet() {
41          return false;
42      }
43  
44      @Override
45      public boolean isAllowNullValuePut() {
46          return false;
47      }
48  
49      @Override
50      public boolean isTestSerialization() {
51          return false;
52      }
53  
54  }