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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,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License.
18   *
19   */
20  package org.apache.directory.mavibot.btree.comparator;
21  
22  
23  import static org.junit.Assert.assertEquals;
24  
25  import org.apache.directory.mavibot.btree.comparator.ByteComparator;
26  import org.junit.Test;
27  
28  
29  /**
30   * Test the ByteComparator class
31   * 
32   * @author <a href="mailto:labs@labs.apache.org">Mavibot labs Project</a>
33   */
34  public class ByteComparatorTest
35  {
36      @Test
37      public void testByteComparator()
38      {
39          ByteComparator comparator = new ByteComparator();
40  
41          assertEquals( 0, comparator.compare( null, null ) );
42          assertEquals( 0, comparator.compare( ( byte ) 0x00, ( byte ) 0x00 ) );
43          assertEquals( 0, comparator.compare( ( byte ) 0xFE, ( byte ) 0xFE ) );
44          assertEquals( 1, comparator.compare( ( byte ) 0x01, null ) );
45          assertEquals( 1, comparator.compare( ( byte ) 0x01, ( byte ) 0x00 ) );
46          assertEquals( 1, comparator.compare( ( byte ) 0x00, ( byte ) 0xFF ) );
47          assertEquals( 1, comparator.compare( ( byte ) 0x7F, ( byte ) 0x01 ) );
48          assertEquals( -1, comparator.compare( null, ( byte ) 0x00 ) );
49          assertEquals( -1, comparator.compare( null, ( byte ) 0xFF ) );
50          assertEquals( -1, comparator.compare( ( byte ) 0x00, ( byte ) 0x01 ) );
51          assertEquals( -1, comparator.compare( ( byte ) 0xF0, ( byte ) 0xFF ) );
52          assertEquals( -1, comparator.compare( ( byte ) 0xFF, ( byte ) 0x01 ) );
53      }
54  }