01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: 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.freespace;
22:
23: import com.db4o.config.*;
24: import com.db4o.internal.freespace.*;
25:
26: import db4ounit.*;
27: import db4ounit.extensions.fixtures.*;
28:
29: public class FreespaceMigrationTestCase extends
30: FreespaceManagerTestCaseBase implements OptOutCS,
31: OptOutDefragSolo {
32:
33: private Configuration configuration;
34:
35: public static void main(String[] args) {
36: new FreespaceMigrationTestCase().runSolo();
37: }
38:
39: protected void configure(Configuration config) throws Exception {
40: super .configure(config);
41: config.freespace().useBTreeSystem();
42: configuration = config;
43: }
44:
45: public void testSwitchingBackAndForth() throws Exception {
46: produceSomeFreeSpace();
47: db().commit();
48: for (int i = 0; i < 5; i++) {
49: int oldFreespace = currentFreespaceManager()
50: .totalFreespace();
51: configuration.freespace().useRamSystem();
52: reopen();
53: Assert.isInstanceOf(RamFreespaceManager.class,
54: currentFreespaceManager());
55: int newFreespace = currentFreespaceManager()
56: .totalFreespace();
57: if (i > 2) {
58: Assert.areEqual(oldFreespace, newFreespace);
59: }
60: configuration.freespace().useBTreeSystem();
61: }
62:
63: }
64:
65: }
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