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Java > Open Source Codes > com > db4o > test > TestHashTable


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.test;
22
23 import java.util.*;
24
25 import com.db4o.*;
26
27 public class TestHashTable {
28     
29     public Hashtable ht;
30     
31     public void configure(){
32         Db4o.configure().objectClass(this).cascadeOnUpdate(true);
33         Db4o.configure().objectClass(this).cascadeOnDelete(true);
34     }
35     
36     public void store(){
37         Test.deleteAllInstances(this);
38         Test.deleteAllInstances(new Atom());
39         Test.deleteAllInstances(new com.db4o.config.Entry());
40         TestHashTable tht = new TestHashTable();
41         tht.ht = new Hashtable();
42         tht.ht.put("t1", new Atom("t1"));
43         tht.ht.put("t2", new Atom("t2"));
44         Test.store(tht);
45     }
46     
47     public void test(){
48         com.db4o.config.Entry checkEntries = new com.db4o.config.Entry();
49         TestHashTable tht = (TestHashTable)Test.getOne(this);
50         Test.ensure(tht.ht.size() == 2);
51         Test.ensure(tht.ht.get("t1").equals(new Atom("t1")));
52         Test.ensure(tht.ht.get("t2").equals(new Atom("t2")));
53         tht.ht.put("t2", new Atom("t3"));
54         Test.store(tht);
55         
56         if(Test.COMPARE_INTERNAL_OK){
57             Test.ensureOccurrences(checkEntries, 2);
58             Test.commit();
59             Test.ensureOccurrences(checkEntries, 2);
60             Test.deleteAllInstances(this);
61             Test.ensureOccurrences(checkEntries, 0);
62             Test.rollBack();
63             Test.ensureOccurrences(checkEntries, 2);
64             Test.deleteAllInstances(this);
65             Test.ensureOccurrences(checkEntries, 0);
66             Test.commit();
67             Test.ensureOccurrences(checkEntries, 0);
68         }
69     }
70 }
71
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