01: /*
02: * Copyright (C) 1999-2004 <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</a>
03: *
04: * This library is free software; you can redistribute it and/or
05: * modify it under the terms of the GNU Lesser General Public
06: * License as published by the Free Software Foundation; either
07: * version 2 of the License, or (at your option) any later version.
08: *
09: * This library is distributed in the hope that it will be useful,
10: * but WITHOUT ANY WARRANTY; without even the implied warranty of
11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12: * Lesser General Public License for more details.
13: *
14: * You should have received a copy of the GNU Lesser General Public
15: * License along with this library; if not, write to the Free Software
16: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17: */
18: package test.org.mandarax.reference;
19:
20: import org.mandarax.kernel.ClauseSetChangeEvent;
21: import org.mandarax.kernel.Fact;
22:
23: /**
24: * Test whether an event of the type <code>KEY_CHANGED</code> is fired (and handled)
25: * if we change the predicate in a fact.
26: * @author <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</A>
27: * @version 3.4 <7 March 05>
28: * @since 1.1
29: */
30: public class TestClauseSetEvents1 extends TestClauseSetEvents {
31:
32: /**
33: * Constructor.
34: */
35: public TestClauseSetEvents1() {
36: super ();
37: }
38:
39: /**
40: * Run the test.
41: */
42: public void testEvent() {
43: EventHandler handler = new EventHandler();
44: Fact fact1 = Person.getFact("isBrotherOf", "Lutz", "Klaus");
45: Fact fact2 = Person.getFact("isFatherOf", "Klaus", "Jens");
46:
47: fact1.addClauseSetChangeListener(handler);
48: fact1.setPredicate(fact2.getPredicate());
49:
50: // now check whether the event has been fired
51: ClauseSetChangeEvent lastEvent = (ClauseSetChangeEvent) handler.handledEvents
52: .peek();
53:
54: assertTrue((handler.handledEvents.size() == 1)
55: && (lastEvent.getSource() == fact1)
56: && (lastEvent.getType() == ClauseSetChangeEvent.KEY_CHANGED));
57: }
58: }
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