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Java > Open Source Codes > com > db4o > db4ounit > jre11 > events > EventRegistryTestCase


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.events;
22
23 import com.db4o.events.*;
24 import com.db4o.query.Query;
25
26 import db4ounit.Assert;
27 import db4ounit.extensions.AbstractDb4oTestCase;
28
29 public class EventRegistryTestCase extends AbstractDb4oTestCase {
30     
31     public void testForObjectContainerReturnsSameInstance() {
32         Assert.areSame(
33                 EventRegistryFactory.forObjectContainer(db()),
34                 EventRegistryFactory.forObjectContainer(db()));
35     }
36
37     public void testQueryEvents() {
38
39         EventRegistry registry = EventRegistryFactory.forObjectContainer(db());
40
41         EventRecorder recorder = new EventRecorder();
42         
43         registry.queryStarted().addListener(recorder);
44         registry.queryFinished().addListener(recorder);
45
46         Query q = db().query();
47         Assert.areEqual(0, recorder.size());
48         q.execute();
49         Assert.areEqual(2, recorder.size());
50         EventRecord e1 = recorder.get(0);
51         Assert.areSame(registry.queryStarted(), e1.e);
52         Assert.areSame(q, ((QueryEventArgs)e1.args).query());
53
54         EventRecord e2 = recorder.get(1);
55         Assert.areSame(registry.queryFinished(), e2.e);
56         Assert.areSame(q, ((QueryEventArgs)e2.args).query());
57
58         recorder.clear();
59
60         registry.queryStarted().removeListener(recorder);
61         registry.queryFinished().removeListener(recorder);
62
63         db().query().execute();
64
65         Assert.areEqual(0, recorder.size());
66     }
67 }
68
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