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33
34 package edu.rice.cs.drjava.model.repl;
35
36 import edu.rice.cs.drjava.DrJavaTestCase;
37 import edu.rice.cs.util.text.EditDocumentException;
38
39 /** Tests the functionality of the InteractionsDocument. Most history functionality is tested in HistoryTest.
40  * @version $Id: InteractionsDocumentTest.java 3816 2006-04-20 19:54:29Z rcartwright $
41  */
42 public final class InteractionsDocumentTest extends DrJavaTestCase {
43   protected InteractionsDocument _doc;
44   
45   final String JavaDoc _testBanner = "This is a test banner";
46   
47   /** Initialize fields for each test. */
48   protected void setUp() throws Exception JavaDoc {
49     super.setUp();
50     // Use System.getProperty("user.dir") as working directory here and in call on reset(...) below
51 _doc = new InteractionsDocument(new InteractionsDJDocument(), _testBanner);
52   }
53
54   /** Tests that the document prevents editing before the prompt, and beeps if you try. */
55   public void testCannotEditBeforePrompt() throws EditDocumentException {
56     TestBeep testBeep = new TestBeep();
57     _doc.setBeep(testBeep);
58     int origLength = _doc.getLength();
59
60     // Try to insert into the banner
61 _doc.insertText(1, "text", InteractionsDocument.DEFAULT_STYLE);
62     assertEquals("Number of beeps", 1, testBeep.numBeeps);
63     assertEquals("Doc length", origLength, _doc.getLength());
64   }
65
66   /** Tests that clear current interaction works. */
67   public void testClearCurrent() throws EditDocumentException {
68     int origLength = _doc.getLength();
69     _doc.insertText(origLength, "text", InteractionsDocument.DEFAULT_STYLE);
70     _doc.insertBeforeLastPrompt("before", InteractionsDocument.DEFAULT_STYLE);
71     assertEquals("Length after inserts", origLength + 10, _doc.getLength()); // orig + "before" + "text"
72 _doc.clearCurrentInteraction();
73     assertEquals("Length after clear", origLength + 6, _doc.getLength()); // orig + "before"
74 }
75
76   /** Tests that initial contents are the banner and prompt, and that reset works. */
77   public void testContentsAndReset() throws EditDocumentException {
78     String JavaDoc banner = _testBanner;
79     String JavaDoc prompt = _doc.getPrompt();
80     String JavaDoc newBanner = "THIS IS A NEW BANNER\n";
81     assertEquals("Contents before insert", banner + prompt, _doc.getDocText(0, _doc.getLength()));
82     // Insert some text
83 _doc.insertText(_doc.getLength(), "text", InteractionsDocument.DEFAULT_STYLE);
84     _doc.insertBeforeLastPrompt("before", InteractionsDocument.DEFAULT_STYLE);
85     assertEquals("Contents before reset", banner + "before" + prompt + "text",
86                  _doc.getDocText(0, _doc.getLength()));
87     _doc.reset(newBanner);
88     assertEquals("Contents after reset", newBanner + prompt, _doc.getDocText(0, _doc.getLength()));
89   }
90
91   /** Tests that inserting a newline works. */
92   public void testInsertNewLine() throws EditDocumentException {
93     int origLength = _doc.getLength();
94     _doc.insertText(origLength, "command", InteractionsDocument.DEFAULT_STYLE);
95     assertEquals("current interaction before newline", "command", _doc.getCurrentInteraction());
96     _doc.insertNewLine(origLength + 2);
97     assertEquals("current interaction after newline", "co" + System.getProperty("line.separator") + "mmand",
98                  _doc.getCurrentInteraction());
99   }
100
101   /** Tests that recalling commands from the history works. */
102   public void testRecallFromHistory() throws EditDocumentException {
103     String JavaDoc origText = _doc.getDocText(0, _doc.getLength());
104     _doc.addToHistory("command");
105     assertEquals("Contents before recall prev", origText, _doc.getDocText(0, _doc.getLength()));
106
107     _doc.recallPreviousInteractionInHistory();
108     assertEquals("Contents after recall prev", origText + "command", _doc.getDocText(0, _doc.getLength()));
109
110     _doc.recallNextInteractionInHistory();
111     assertEquals("Contents after recall next", origText, _doc.getDocText(0, _doc.getLength()));
112   }
113
114
115   /** Silent beep for a test class. */
116   public static class TestBeep implements Runnable JavaDoc {
117     int numBeeps = 0;
118     public void run() { numBeeps++; }
119   }
120 }
121
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