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Java > Open Source Codes > com > db4o > db4ounit > common > btree > BTreeNodeTestCase


1 /* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com
2
3 This file is part of the db4o open source object database.
4
5 db4o is free software; you can redistribute it and/or modify it under
6 the terms of version 2 of the GNU General Public License as published
7 by the Free Software Foundation and as clarified by db4objects' GPL
8 interpretation policy, available at
9 http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10 Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11 Suite 350, San Mateo, CA 94403, USA.
12
13 db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 package com.db4o.db4ounit.common.btree;
22
23 import com.db4o.*;
24 import com.db4o.foundation.*;
25 import com.db4o.inside.btree.*;
26
27 import db4ounit.*;
28
29
30 public class BTreeNodeTestCase extends BTreeTestCaseBase {
31     
32     public static void main(String JavaDoc[] args) {
33         new BTreeNodeTestCase().runSolo();
34     }
35
36     private final int[] keys = new int[] {
37             -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 7, 9
38     };
39     
40     protected void db4oSetupAfterStore() throws Exception JavaDoc {
41         super.db4oSetupAfterStore();
42         add(keys);
43         commit();
44     }
45     
46     public void testLastKeyIndex(){
47         BTreeNode node = node(3);
48         Assert.areEqual(1, node.lastKeyIndex(trans()));
49         Transaction trans = newTransaction();
50         _btree.add(trans, new Integer JavaDoc(5));
51         Assert.areEqual(1, node.lastKeyIndex(trans()));
52         _btree.commit(trans);
53         Assert.areEqual(2, node.lastKeyIndex(trans()));
54     }
55
56     private BTreeNode node(final int value) {
57         BTreeRange range = search(value);
58         Iterator4 i = range.pointers();
59         i.moveNext();
60         BTreePointer firstPointer = (BTreePointer) i.current();
61         BTreeNode node = firstPointer.node();
62         node.debugLoadFully(systemTrans());
63         return node;
64     }
65     
66     public void testLastPointer(){
67         BTreeNode node = node(3);
68         BTreePointer lastPointer = node.lastPointer(trans());
69         assertPointerKey(4, lastPointer);
70     }
71     
72
73
74 }
75
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