|
1
2 package org.netbeans.modules.editor;
3
4 import javax.swing.undo.UndoManager  ;
5 import org.netbeans.editor.BaseDocument;
6
7
12 public class DocumentUndoTest extends BaseDocumentUnitTestCase {
13
14 private UndoManager undoManager;
15
16 public DocumentUndoTest(String testMethodName) {
17 super(testMethodName);
18
19 }
20
21 protected void setUp() throws Exception {
22 super.setUp();
23
24 undoManager = new UndoManager ();
25 getDocument().addUndoableEditListener(undoManager);
26 }
27
28 public void testUndoWordAtOnce() throws Exception {
29 insertByAtomicChars(0, "abc");
30 undoManager.undo();
31 assertDocumentText("Expected empty document", "");
32 }
33
34 public void testUndoSecondWordFromTwo() throws Exception {
35 insertByAtomicChars(0, "abc def");
36 undoManager.undo();
37 assertDocumentText("Expected second word undone", "abc ");
38 }
39
40 public void testUndoAtomicThenNonAtomic() throws Exception {
41 insertByAtomicChars(0, "a b");
42 getDocument().insertString(3, "c", null);
43 undoManager.undo();
44 assertDocumentText("Expected second word undone", "a ");
45 }
46
47 public void testUndoNonAtomicThenAtomic() throws Exception {
48 getDocument().insertString(0, "a", null);
49 insertByAtomicChars(1, "bc");
50 undoManager.undo();
51 assertDocumentText("Expected empty document", "");
52 }
53
54 public void testUndoTwoNonAtomic() throws Exception {
55 getDocument().insertString(0, "a", null);
56 getDocument().insertString(1, "b", null);
57 undoManager.undo();
58 assertDocumentText("Expected empty document", "");
59 }
60
61 private void insertByAtomicChars(int offset, String text) throws Exception {
62 BaseDocument doc = getDocument();
63 for (int i = 0; i < text.length(); i++) {
64 doc.atomicLock();
65 try {
66 doc.insertString(offset + i, text.substring(i, i + 1), null);
67 } finally {
68 doc.atomicUnlock();
69 }
70 }
71 }
72
73 }
74 |
Popular Tags |
Java API By Example, From Geeks To Geeks.