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Java > Open Source Codes > com > jeantessier > classreader > TestModifiedOnlyDispatcher


1 /*
2  * Copyright (c) 2001-2005, Jean Tessier
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * * Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  *
12  * * Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in the
14  * documentation and/or other materials provided with the distribution.
15  *
16  * * Neither the name of Jean Tessier nor the names of his contributors
17  * may be used to endorse or promote products derived from this software
18  * without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32
33 package com.jeantessier.classreader;
34
35 import java.io.*;
36 import java.util.*;
37
38 import junit.framework.*;
39
40 public class TestModifiedOnlyDispatcher extends TestCase {
41     private MockDispatcher mockDispatcher;
42     private ClassfileLoaderDispatcher dispatcher;
43
44     private String JavaDoc testDirname;
45     private String JavaDoc testFilename;
46     
47     protected void setUp() throws Exception JavaDoc {
48         super.setUp();
49         
50         mockDispatcher = new MockDispatcher();
51         dispatcher = new ModifiedOnlyDispatcher(mockDispatcher);
52
53         testDirname = "classes";
54         testFilename = testDirname + File.separator + getClass().getName() + "." + getName() + ".txt";
55     }
56
57     protected void tearDown() throws Exception JavaDoc {
58         File file = new File(testFilename);
59         file.delete();
60
61         super.tearDown();
62     }
63     
64     public void testDispatchNonExistingFile() {
65         assertEquals("dispatch action", MockDispatcher.ACTION, dispatcher.dispatch(testFilename));
66         assertEquals("delegated calls", 1, mockDispatcher.getDispatchCount(testFilename));
67     }
68
69     public void testDispatchNewFile() throws IOException {
70         writeFile();
71         
72         assertEquals("dispatch action", MockDispatcher.ACTION, dispatcher.dispatch(testFilename));
73         assertEquals("delegated calls", 1, mockDispatcher.getDispatchCount(testFilename));
74     }
75     
76     public void testDispatchIdenticalFile() throws IOException {
77         writeFile();
78         
79         assertEquals("first dispatch action", MockDispatcher.ACTION, dispatcher.dispatch(testFilename));
80         assertEquals("first delegated calls", 1, mockDispatcher.getDispatchCount(testFilename));
81
82         assertEquals("repeat dispatch action", ClassfileLoaderDispatcher.ACTION_IGNORE, dispatcher.dispatch(testFilename));
83         assertEquals("repeat delegated calls", 1, mockDispatcher.getDispatchCount(testFilename));
84     }
85     
86     public void testDispatchDirectory() throws IOException {
87         assertEquals("first dispatch action", MockDispatcher.ACTION, dispatcher.dispatch(testDirname));
88         assertEquals("first delegated calls", 1, mockDispatcher.getDispatchCount(testDirname));
89
90         assertEquals("repeat dispatch action", MockDispatcher.ACTION, dispatcher.dispatch(testDirname));
91         assertEquals("repeat delegated calls", 2, mockDispatcher.getDispatchCount(testDirname));
92     }
93     
94     public void testDispatchModifiedFile() throws IOException {
95         writeFile();
96         
97         assertEquals("first dispatch action", MockDispatcher.ACTION, dispatcher.dispatch(testFilename));
98         assertEquals("first delegated calls", 1, mockDispatcher.getDispatchCount(testFilename));
99
100         try {
101             Thread.sleep(50);
102         } catch (InterruptedException JavaDoc ex) {
103             // Ignore
104 }
105         writeFile();
106         
107         assertEquals("repeat dispatch action", MockDispatcher.ACTION, dispatcher.dispatch(testFilename));
108         assertEquals("repeat delegated calls", 2, mockDispatcher.getDispatchCount(testFilename));
109     }
110
111     private void writeFile() throws IOException {
112         PrintWriter out = new PrintWriter(new FileWriter(testFilename));
113         out.println("foobar");
114         out.close();
115     }
116 }
117
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