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Java > Open Source Codes > edu > rice > cs > util > text > SwingDocumentTest


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33
34 package edu.rice.cs.util.text;
35
36 import edu.rice.cs.drjava.DrJavaTestCase;
37
38 import javax.swing.text.AttributeSet JavaDoc;
39 import javax.swing.text.BadLocationException JavaDoc;
40
41 /** Tests the SwingDocument.
42  * @version $Id: SwingDocumentTest.java 3526 2006-02-12 03:39:30Z rcartwright $
43  */
44 public class SwingDocumentTest extends DrJavaTestCase {
45   protected SwingDocument _doc;
46   
47   public void setUp() throws Exception JavaDoc {
48     super.setUp();
49     _doc = new SwingDocument();
50   }
51   
52   public void tearDown() throws Exception JavaDoc {
53     _doc = null;
54     super.tearDown();
55   }
56   
57   /** Tests basic interactions with a Swing Document. */
58   public void testBasicDocOps() throws EditDocumentException {
59     _doc.insertText(0, "one", null);
60     assertEquals("first doc contents", "one", _doc.getText());
61     
62     _doc.insertText(_doc.getLength(), " three", null);
63     assertEquals("second doc contents", "one three", _doc.getText());
64     
65     _doc.removeText(0, 3);
66     _doc.insertText(0, "two", null);
67     assertEquals("third doc contents", "two thr", _doc.getDocText(0, 7));
68     
69     _doc.append(" four", (String JavaDoc) null);
70     assertEquals("fourth doc contents", "two three four", _doc.getText());
71   }
72   
73   /** Tests that a EditDocumentException is thrown when it should be. */
74   public void testException() {
75     try {
76       _doc.insertText(5, "test", null);
77       fail("should have thrown an exception");
78     }
79     catch (EditDocumentException e) { /* Expected. Silently succeed. */ }
80   }
81   
82   /** Tests that a SwingDocument can receive an object that determines whether certain edits are legal. */
83   public void testEditCondition() throws EditDocumentException, BadLocationException JavaDoc {
84     DocumentEditCondition c = new DocumentEditCondition() {
85       public boolean canInsertText(int offs) { return (offs > 5); }
86       public boolean canRemoveText(int offs) { return (offs == 1); }
87     };
88     _doc.insertText(0, "initial", null);
89     assertEquals("first doc contents", "initial", _doc.getDocText(0, _doc.getLength()));
90     
91     _doc.setEditCondition(c);
92     _doc.insertText(4, "1", null);
93     assertEquals("insertText should be rejected", "initial", _doc.getText());
94     _doc.insertString(2, "1", null);
95     assertEquals("insertString should be rejected", "initial", _doc.getText());
96     _doc.insertText(6, "2", null);
97     assertEquals("insertText should be accepted", "initia2l", _doc.getText());
98     _doc.forceInsertText(2, "3", null);
99     assertEquals("forceInsertText should be accepted", "in3itia2l", _doc.getText());
100     
101     _doc.removeText(3, 1);
102     assertEquals("removeText should be rejected", "in3itia2l", _doc.getText());
103     _doc.remove(6, 1);
104     assertEquals("remove should be rejected", "in3itia2l", _doc.getText());
105     _doc.removeText(1, 2);
106     assertEquals("removeText should be accepted", "iitia2l", _doc.getText());
107     _doc.forceRemoveText(6, 1);
108     assertEquals("forceRemove should be accepted", "iitia2", _doc.getText());
109     _doc.append("THE END", (String JavaDoc) null);
110     assertEquals("forceRemove should be accepted", "iitia2THE END", _doc.getText());
111   }
112 }
113
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