|
1
29
30 package nextapp.echo2.app.test;
31
32 import nextapp.echo2.app.event.ListDataEvent;
33 import nextapp.echo2.app.event.ListDataListener;
34 import nextapp.echo2.app.list.DefaultListModel;
35 import junit.framework.TestCase;
36
37
41 public class ListModelTest extends TestCase {
42
43 private class ListenerTestDefaultListModel extends DefaultListModel {
44
45 public int getEventListenerCount() {
46 return getEventListenerList().getListenerCount(ListDataListener.class);
47 }
48 }
49
50 private class TestListDataListener
51 implements ListDataListener {
52
53 private ListDataEvent changeEvent, addEvent, removeEvent;
54
55
58 public void contentsChanged(ListDataEvent e) {
59 changeEvent = e;
60 }
61
62
65 public void intervalAdded(ListDataEvent e) {
66 addEvent = e;
67 }
68
69
72 public void intervalRemoved(ListDataEvent e) {
73 removeEvent = e;
74 }
75 }
76
77 public void testAddAtEnd() {
78 DefaultListModel listModel = new DefaultListModel(new Object  []{"alpha", "bravo", "charlie"});
79 TestListDataListener testListener = new TestListDataListener();
80 listModel.addListDataListener(testListener);
81 listModel.add("delta");
82 assertEquals(4, listModel.size());
83 assertEquals("alpha", listModel.get(0));
84 assertEquals("bravo", listModel.get(1));
85 assertEquals("charlie", listModel.get(2));
86 assertEquals("delta", listModel.get(3));
87 assertNull(testListener.changeEvent);
88 assertNull(testListener.removeEvent);
89 assertNotNull(testListener.addEvent);
90 assertEquals(listModel, testListener.addEvent.getSource());
91 assertEquals(3, testListener.addEvent.getIndex0());
92 assertEquals(3, testListener.addEvent.getIndex1());
93 assertEquals(ListDataEvent.INTERVAL_ADDED, testListener.addEvent.getType());
94 }
95
96 public void testAddAtIndex() {
97 DefaultListModel listModel = new DefaultListModel(new Object []{"alpha", "bravo", "charlie"});
98 TestListDataListener testListener = new TestListDataListener();
99 listModel.addListDataListener(testListener);
100 listModel.add(2, "delta");
101 assertEquals(4, listModel.size());
102 assertEquals("alpha", listModel.get(0));
103 assertEquals("bravo", listModel.get(1));
104 assertEquals("delta", listModel.get(2));
105 assertEquals("charlie", listModel.get(3));
106 assertNull(testListener.changeEvent);
107 assertNull(testListener.removeEvent);
108 assertNotNull(testListener.addEvent);
109 assertEquals(listModel, testListener.addEvent.getSource());
110 assertEquals(2, testListener.addEvent.getIndex0());
111 assertEquals(2, testListener.addEvent.getIndex1());
112 assertEquals(ListDataEvent.INTERVAL_ADDED, testListener.addEvent.getType());
113 }
114
115 public void testBasic() {
116 DefaultListModel listModel = new DefaultListModel(new Object []{"alpha", "bravo", "charlie"});
117 assertEquals(3, listModel.size());
118 assertEquals("alpha", listModel.get(0));
119 assertEquals("bravo", listModel.get(1));
120 assertEquals("charlie", listModel.get(2));
121 assertEquals(1, listModel.indexOf("bravo"));
122 }
123
124 public void testListenerManagement() {
125 ListenerTestDefaultListModel listModel = new ListenerTestDefaultListModel();
126 TestListDataListener testListener = new TestListDataListener();
127 assertEquals(0, listModel.getEventListenerCount());
128 listModel.addListDataListener(testListener);
129 assertEquals(1, listModel.getEventListenerCount());
130 listModel.removeListDataListener(testListener);
131 assertEquals(0, listModel.getEventListenerCount());
132 }
133
134 public void testRemoveByIndex() {
135 DefaultListModel listModel = new DefaultListModel(new Object []{"alpha", "bravo", "charlie"});
136 TestListDataListener testListener = new TestListDataListener();
137 listModel.addListDataListener(testListener);
138 listModel.remove(1);
139 assertEquals(2, listModel.size());
140 assertEquals("alpha", listModel.get(0));
141 assertEquals("charlie", listModel.get(1));
142 assertNull(testListener.changeEvent);
143 assertNull(testListener.addEvent);
144 assertNotNull(testListener.removeEvent);
145 assertEquals(listModel, testListener.removeEvent.getSource());
146 assertEquals(1, testListener.removeEvent.getIndex0());
147 assertEquals(1, testListener.removeEvent.getIndex1());
148 assertEquals(ListDataEvent.INTERVAL_REMOVED, testListener.removeEvent.getType());
149 }
150
151 public void testRemoveByItem() {
152 DefaultListModel listModel = new DefaultListModel(new Object []{"alpha", "bravo", "charlie"});
153 TestListDataListener testListener = new TestListDataListener();
154 listModel.addListDataListener(testListener);
155 listModel.remove("bravo");
156 assertEquals(2, listModel.size());
157 assertEquals("alpha", listModel.get(0));
158 assertEquals("charlie", listModel.get(1));
159 assertNull(testListener.changeEvent);
160 assertNull(testListener.addEvent);
161 assertNotNull(testListener.removeEvent);
162 assertEquals(listModel, testListener.removeEvent.getSource());
163 assertEquals(1, testListener.removeEvent.getIndex0());
164 assertEquals(1, testListener.removeEvent.getIndex1());
165 assertEquals(ListDataEvent.INTERVAL_REMOVED, testListener.removeEvent.getType());
166 }
167 }
168 |
Popular Tags |
Java API By Example, From Geeks To Geeks.