01: /*
02: * Copyright (c) 2002-2007 JGoodies Karsten Lentzsch. All Rights Reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, are permitted provided that the following conditions are met:
06: *
07: * o Redistributions of source code must retain the above copyright notice,
08: * this list of conditions and the following disclaimer.
09: *
10: * o Redistributions in binary form must reproduce the above copyright notice,
11: * this list of conditions and the following disclaimer in the documentation
12: * and/or other materials provided with the distribution.
13: *
14: * o Neither the name of JGoodies Karsten Lentzsch nor the names of
15: * its contributors may be used to endorse or promote products derived
16: * from this software without specific prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20: * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
22: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
27: * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
28: * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29: */
30:
31: package com.jgoodies.binding.tests;
32:
33: import junit.framework.TestCase;
34:
35: import com.jgoodies.binding.tests.event.PropertyChangeReport;
36: import com.jgoodies.binding.value.ValueHolder;
37: import com.jgoodies.binding.value.ValueModel;
38:
39: /**
40: * Tests old and new values when the bean, value or subject changes in
41: * BeanAdapter, PropertyAdapter, PresentationModel and BufferedValueModel.
42: *
43: * @author Karsten Lentzsch
44: * @version $Revision: 1.8 $
45: */
46: public final class ValueHolderTest extends TestCase {
47:
48: // Public Tests ***********************************************************
49:
50: public void testEquityTestingHolderSendsProperEvents() {
51: ValueHolder holder = new ValueHolder();
52:
53: Object obj1 = new Integer(1);
54: Object obj2a = new Integer(2);
55: Object obj2b = new Integer(2);
56: testValueChangeSendsProperEvent(holder, null, obj1, true);
57: testValueChangeSendsProperEvent(holder, obj1, null, true);
58: testValueChangeSendsProperEvent(holder, obj1, obj1, false);
59: testValueChangeSendsProperEvent(holder, obj1, obj2a, true);
60: testValueChangeSendsProperEvent(holder, obj2a, obj2b, false); // equals
61: testValueChangeSendsProperEvent(holder, null, null, false);
62: }
63:
64: public void testIdentityTestingHolderSendsProperEvents() {
65: ValueHolder holder = new ValueHolder(null, true);
66:
67: Object obj1 = new Integer(1);
68: Object obj2a = new Integer(2);
69: Object obj2b = new Integer(2);
70: testValueChangeSendsProperEvent(holder, null, obj1, true);
71: testValueChangeSendsProperEvent(holder, obj1, null, true);
72: testValueChangeSendsProperEvent(holder, obj1, obj1, false);
73: testValueChangeSendsProperEvent(holder, obj1, obj2a, true);
74: testValueChangeSendsProperEvent(holder, obj2a, obj2b, true); // !=
75: testValueChangeSendsProperEvent(holder, null, null, false);
76: }
77:
78: // Test Implementations ***************************************************
79:
80: private void testValueChangeSendsProperEvent(ValueModel valueModel,
81: Object oldValue, Object newValue, boolean eventExpected) {
82: valueModel.setValue(oldValue);
83: PropertyChangeReport changeReport = new PropertyChangeReport();
84: valueModel.addValueChangeListener(changeReport);
85: int expectedEventCount = eventExpected ? 1 : 0;
86:
87: valueModel.setValue(newValue);
88: assertEquals("Expected event count after ( " + oldValue
89: + " -> " + newValue + ").", expectedEventCount,
90: changeReport.eventCount());
91: if (eventExpected) {
92: assertEquals("Event's old value.", oldValue, changeReport
93: .lastOldValue());
94: assertEquals("Event's new value.", newValue, changeReport
95: .lastNewValue());
96: }
97: }
98:
99: }
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