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21 package org.apache.directory.mavibot.btree;
22
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24 import static org.junit.Assert.assertEquals;
25
26 import java.io.IOException;
27 import java.util.ArrayList;
28 import java.util.List;
29
30 import org.apache.directory.mavibot.btree.BTree;
31 import org.apache.directory.mavibot.btree.InMemoryBTreeBuilder;
32 import org.apache.directory.mavibot.btree.Tuple;
33 import org.apache.directory.mavibot.btree.TupleCursor;
34 import org.apache.directory.mavibot.btree.serializer.IntSerializer;
35 import org.junit.Test;
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43 public class InMemoryBTreeBuilderTest
44 {
45 @Test
46 public void testIntegerTree() throws IOException
47 {
48 List<Tuple<Integer, Integer>> sortedTuple = new ArrayList<Tuple<Integer, Integer>>();
49
50 for ( int i = 1; i < 8; i++ )
51 {
52 Tuple<Integer, Integer> t = new Tuple<Integer, Integer>( i, i );
53 sortedTuple.add( t );
54 }
55
56 IntSerializer ser = new IntSerializer();
57 InMemoryBTreeBuilder<Integer, Integer> bb = new InMemoryBTreeBuilder<Integer, Integer>( "master", 4, ser, ser );
58
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60 BTree<Integer, Integer> btree = bb.build( sortedTuple.iterator() );
61
62 assertEquals( 1, btree.getRootPage().getNbElems() );
63
64 assertEquals( 7, btree.getRootPage().findRightMost().getKey().intValue() );
65
66 assertEquals( 1, btree.getRootPage().findLeftMost().getKey().intValue() );
67
68 TupleCursor<Integer, Integer> cursor = btree.browse();
69 int i = 0;
70
71 while ( cursor.hasNext() )
72 {
73 Tuple<Integer, Integer> expected = sortedTuple.get( i++ );
74 Tuple<Integer, Integer> actual = cursor.next();
75 assertEquals( expected.getKey(), actual.getKey() );
76 assertEquals( expected.getValue(), actual.getValue() );
77 }
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79 cursor.close();
80 btree.close();
81 }
82
83 }