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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   * http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  package org.apache.hadoop.hbase.util;
20  
21  import com.google.common.collect.ImmutableMap;
22  import com.google.common.collect.Lists;
23  import org.apache.hadoop.conf.Configuration;
24  import org.apache.hadoop.hbase.testclassification.SmallTests;
25  import org.junit.Before;
26  import org.junit.Test;
27  import org.junit.experimental.categories.Category;
28  
29  import java.util.List;
30  import java.util.Map;
31  
32  import static org.junit.Assert.assertEquals;
33  import static org.junit.Assert.assertNull;
34  
35  @Category({ SmallTests.class })
36  public class TestConfigurationUtil {
37  
38    private Configuration conf;
39    private Map<String, String> keyValues;
40    private String key;
41  
42    @Before
43    public void setUp() throws Exception {
44      this.conf = new Configuration();
45      this.keyValues = ImmutableMap.of("k1", "v1", "k2", "v2");
46      this.key = "my_conf_key";
47    }
48  
49    public void callSetKeyValues() {
50      ConfigurationUtil.setKeyValues(conf, key, keyValues.entrySet());
51    }
52  
53    public List<Map.Entry<String, String>> callGetKeyValues() {
54      return ConfigurationUtil.getKeyValues(conf, key);
55    }
56  
57    @Test
58    public void testGetAndSetKeyValuesWithValues() throws Exception {
59      callSetKeyValues();
60      assertEquals(Lists.newArrayList(this.keyValues.entrySet()), callGetKeyValues());
61    }
62  
63    @Test
64    public void testGetKeyValuesWithUnsetKey() throws Exception {
65      assertNull(callGetKeyValues());
66    }
67  
68  }