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Java > Open Source Codes > com > db4o > db4ounit > common > assorted > SystemInfoTestCase


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.assorted;
22
23 import com.db4o.*;
24 import com.db4o.ext.*;
25
26 import db4ounit.*;
27 import db4ounit.extensions.*;
28 import db4ounit.extensions.fixtures.AbstractFileBasedDb4oFixture;
29
30 import java.io.File JavaDoc;
31
32
33 public class SystemInfoTestCase extends AbstractDb4oTestCase{
34     
35     public static class Item {
36         
37     }
38     
39     public static void main(String JavaDoc[] arguments) {
40         new SystemInfoTestCase().runSolo();
41     }
42
43     protected void db4oCustomTearDown() throws Exception JavaDoc {
44         Db4o.configure().freespace().useRamSystem();
45     }
46     
47     public void testDefaultFreespaceInfo(){
48         assertFreespaceInfo(fileSession().systemInfo());
49     }
50     
51     public void testIndexBasedFreespaceInfo() throws Exception JavaDoc{
52         Db4o.configure().freespace().useIndexSystem();
53         reopen();
54         assertFreespaceInfo(fileSession().systemInfo());
55     }
56     
57     private void assertFreespaceInfo(SystemInfo info){
58         Assert.isNotNull(info);
59         Item item = new Item();
60         db().set(item);
61         db().commit();
62         db().delete(item);
63         db().commit();
64         Assert.isTrue(info.freespaceEntryCount() > 0);
65         Assert.isTrue(info.freespaceSize() > 0);
66     }
67
68     public void testTotalSize(){
69         if(fixture() instanceof AbstractFileBasedDb4oFixture ){
70             // assuming YapFile only
71
AbstractFileBasedDb4oFixture fixture = (AbstractFileBasedDb4oFixture) fixture();
72             File JavaDoc f = new File JavaDoc(fixture.getAbsolutePath());
73             long expectedSize = f.length();
74             long actual = db().systemInfo().totalSize();
75             Assert.areEqual(expectedSize, actual);
76         }
77     }
78
79 }
80
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