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Java > Open Source Codes > com > db4o > db4ounit > jre11 > assorted > NullWrapperTestCase


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.jre11.assorted;
22
23 import com.db4o.config.Configuration;
24 import com.db4o.query.Query;
25
26 import db4ounit.Assert;
27 import db4ounit.extensions.AbstractDb4oTestCase;
28
29
30 public class NullWrapperTestCase extends AbstractDb4oTestCase {
31     
32     static final int USE_AS_NULL = -9999;
33     
34     final int[] VALUES = new int[] {1, 2, USE_AS_NULL, 5, USE_AS_NULL, 7, USE_AS_NULL};
35     
36     public static void main(String JavaDoc[] args) {
37         new NullWrapperTestCase().runSolo();
38     }
39     
40     protected void configure(Configuration config) {
41         config.objectClass(NullWrapperItem.class).objectField(NullWrapperItem.INTEGER_FIELDNAME).indexed(true);
42     }
43     
44     public void test() throws Exception JavaDoc{
45         for (int i = 0; i < VALUES.length; i++) {
46             Integer JavaDoc integer = VALUES[i] == USE_AS_NULL ? null : new Integer JavaDoc(VALUES[i]);
47             db().set(new NullWrapperItem(integer));
48         }
49         reopen();
50         
51         Query q = newQuery();
52         q.constrain(NullWrapperItem.class);
53         q.descend(NullWrapperItem.INTEGER_FIELDNAME).constrain(null);
54         Assert.areEqual(3, q.execute().size());
55     }
56
57 }
58
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