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.btree;
22:
23: import com.db4o.foundation.*;
24: import com.db4o.internal.*;
25: import com.db4o.internal.slots.*;
26:
27: import db4ounit.*;
28:
29: public class BTreeFreeTestCase extends BTreeTestCaseBase {
30:
31: private static final int[] VALUES = new int[] { 1, 2, 5, 7, 8, 9,
32: 12 };
33:
34: public static void main(String[] args) {
35: new BTreeFreeTestCase().runSolo();
36: }
37:
38: public void test() {
39:
40: add(VALUES);
41:
42: Iterator4 allSlotIDs = _btree.allNodeIds(systemTrans());
43:
44: Collection4 allSlots = new Collection4();
45:
46: while (allSlotIDs.moveNext()) {
47: int slotID = ((Integer) allSlotIDs.current()).intValue();
48: Slot slot = getSlotForID(slotID);
49: allSlots.add(slot);
50: }
51:
52: Slot bTreeSlot = getSlotForID(_btree.getID());
53: allSlots.add(bTreeSlot);
54:
55: final LocalObjectContainer container = (LocalObjectContainer) stream();
56:
57: final Collection4 freedSlots = new Collection4();
58:
59: container
60: .installDebugFreespaceManager(new FreespaceManagerForDebug(
61: container, new SlotListener() {
62: public void onFree(Slot slot) {
63: freedSlots.add(container
64: .toNonBlockedLength(slot));
65: }
66: }));
67:
68: _btree.free(systemTrans());
69:
70: systemTrans().commit();
71:
72: Assert.isTrue(freedSlots.containsAll(allSlots.iterator()));
73:
74: }
75:
76: private Slot getSlotForID(int slotID) {
77: return fileTransaction().getCurrentSlotOfID(slotID);
78: }
79:
80: private LocalTransaction fileTransaction() {
81: return ((LocalTransaction) trans());
82: }
83:
84: }
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