View Javadoc
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.configuration2;
19  
20  import static org.junit.jupiter.api.Assertions.assertFalse;
21  import static org.junit.jupiter.api.Assertions.assertTrue;
22  
23  import org.junit.jupiter.api.Test;
24  
25  /**
26   * Tests the StrintConfigurationComparator class
27   */
28  public class TestStrictConfigurationComparator {
29      /**
30       * The comparator.
31       */
32      protected ConfigurationComparator comparator = new StrictConfigurationComparator();
33  
34      /**
35       * The first configuration.
36       */
37      protected Configuration configuration = new BaseConfiguration();
38  
39      /**
40       * Tests the comparator.
41       */
42      @Test
43      public void testCompare() {
44          // Identity comparison for empty configuration
45          assertTrue(comparator.compare(configuration, configuration));
46  
47          configuration.setProperty("one", "1");
48          configuration.setProperty("two", "2");
49          configuration.setProperty("three", "3");
50  
51          // Identify comparison for non-empty configuration
52          assertTrue(comparator.compare(configuration, configuration));
53  
54          // Create the second configuration
55          final Configuration other = new BaseConfiguration();
56          assertFalse(comparator.compare(configuration, other));
57  
58          other.setProperty("one", "1");
59          other.setProperty("two", "2");
60          other.setProperty("three", "3");
61  
62          // Two identical, non-empty configurations
63          assertTrue(comparator.compare(configuration, other));
64  
65          other.setProperty("four", "4");
66          assertFalse(comparator.compare(configuration, other));
67  
68          configuration.setProperty("four", "4");
69          assertTrue(comparator.compare(configuration, other));
70      }
71  
72      @Test
73      public void testCompareNull() {
74          assertTrue(comparator.compare(null, null));
75          assertFalse(comparator.compare(configuration, null));
76          assertFalse(comparator.compare(null, configuration));
77      }
78  }