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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;
21  
22  
23  import static org.junit.Assert.assertEquals;
24  
25  import java.io.File;
26  import java.io.IOException;
27  import java.lang.reflect.InvocationTargetException;
28  import java.lang.reflect.Method;
29  import java.util.UUID;
30  
31  import org.apache.directory.mavibot.btree.serializer.LongSerializer;
32  import org.apache.directory.mavibot.btree.serializer.StringSerializer;
33  import org.junit.After;
34  import org.junit.Before;
35  import org.junit.Rule;
36  import org.junit.Test;
37  import org.junit.rules.TemporaryFolder;
38  
39  
40  /**
41   * Test some of the RecordManager prvate methods
42   *
43   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
44   */
45  public class RecordManagerPrivateMethodTest
46  {
47      private BTree<Long, String> btree = null;
48  
49      private RecordManager recordManager = null;
50  
51      @Rule
52      public TemporaryFolder tempFolder = new TemporaryFolder();
53  
54      private File dataDir = null;
55  
56  
57      @Before
58      public void createRecordManager() throws Exception
59      {
60          dataDir = tempFolder.newFolder( UUID.randomUUID().toString() );
61  
62          System.out.println( dataDir + "/mavibot.db" );
63  
64          // Now, try to reload the file back
65          recordManager = new RecordManager( dataDir.getAbsolutePath(), 32 );
66  
67          // Create a new BTree
68          btree = recordManager.addBTree( "test", LongSerializer.INSTANCE, StringSerializer.INSTANCE, false );
69      }
70  
71  
72      @After
73      public void closeBTree() throws IOException
74      {
75          recordManager.close();
76      }
77  
78  
79      /**
80       * Test the getFreePageIOs method
81       */
82      @Test
83      public void testGetFreePageIos() throws IOException, NoSuchMethodException, InvocationTargetException,
84          IllegalAccessException
85      {
86          Method getFreePageIOsMethod = RecordManager.class.getDeclaredMethod( "getFreePageIOs", int.class );
87          getFreePageIOsMethod.setAccessible( true );
88  
89          PageIO[] pages = ( org.apache.directory.mavibot.btree.PageIO[] ) getFreePageIOsMethod.invoke( recordManager, 0 );
90  
91          assertEquals( 0, pages.length );
92  
93          for ( int i = 1; i <= 52; i++ )
94          {
95              pages = ( org.apache.directory.mavibot.btree.PageIO[] ) getFreePageIOsMethod.invoke( recordManager, i );
96              assertEquals( 1, pages.length );
97          }
98  
99          for ( int i = 53; i <= 108; i++ )
100         {
101             pages = ( org.apache.directory.mavibot.btree.PageIO[] ) getFreePageIOsMethod.invoke( recordManager, i );
102             assertEquals( 2, pages.length );
103         }
104 
105         for ( int i = 109; i <= 164; i++ )
106         {
107             pages = ( org.apache.directory.mavibot.btree.PageIO[] ) getFreePageIOsMethod.invoke( recordManager, i );
108             assertEquals( 3, pages.length );
109         }
110 
111         btree.close();
112     }
113 
114 
115     /**
116      * Test the ComputeNbPages method
117      */
118     @Test
119     public void testComputeNbPages() throws IOException, SecurityException, NoSuchMethodException,
120         IllegalArgumentException, IllegalAccessException, InvocationTargetException
121     {
122         Method computeNbPagesMethod = RecordManager.class.getDeclaredMethod( "computeNbPages", int.class );
123         computeNbPagesMethod.setAccessible( true );
124 
125         assertEquals( 0, ( ( Integer ) computeNbPagesMethod.invoke( recordManager, 0 ) ).intValue() );
126 
127         for ( int i = 1; i < 53; i++ )
128         {
129             assertEquals( 1, ( ( Integer ) computeNbPagesMethod.invoke( recordManager, i ) ).intValue() );
130         }
131 
132         for ( int i = 53; i < 109; i++ )
133         {
134             assertEquals( 2, ( ( Integer ) computeNbPagesMethod.invoke( recordManager, i ) ).intValue() );
135         }
136 
137         for ( int i = 109; i < 164; i++ )
138         {
139             assertEquals( 3, ( ( Integer ) computeNbPagesMethod.invoke( recordManager, i ) ).intValue() );
140         }
141 
142         btree.close();
143     }
144 }