wamblee.org Git - utils/blob - support/general/src/test/java/org/wamblee/io/DirectoryMonitorTest.java

   1 /*
   2  * Copyright 2007 the original author or authors.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.wamblee.io;
  17
  18 import static org.mockito.Mockito.*;
  19 import junit.framework.TestCase;
  20
  21 import org.apache.oro.io.AwkFilenameFilter;
  22 import org.wamblee.test.ResettableMock;
  23
  24 public class DirectoryMonitorTest extends TestCase {
  25
  26         private static final String REGEX = "^.*\\.txt$";
  27         private static final String FILE1 = "file1.txt";
  28
  29         private TestData _data;
  30         private ResettableMock<DirectoryMonitor.Listener> _listener;
  31
  32         private DirectoryMonitor _monitor;
  33
  34         @Override
  35         protected void setUp() throws Exception {
  36                 super.setUp();
  37                 _data = new TestData(this);
  38                 _data.clean();
  39                 _listener = new ResettableMock<DirectoryMonitor.Listener>(
  40                                 DirectoryMonitor.Listener.class);
  41                 _monitor = new DirectoryMonitor(_data.getRoot(), new AwkFilenameFilter(
  42                                 REGEX), _listener.getProxy());
  43         }
  44
  45         public void testEmptyDir() {
  46                 // Nothing is expected to be called.
  47                 for (int i = 0; i < 10; i++) {
  48                         _monitor.poll();
  49                         verifyNoMoreInteractions(_listener.getMock());
  50                 }
  51         }
  52
  53         public void testFileCreated() {
  54                 _data.createFile(FILE1, "hello");
  55                 _monitor.poll();
  56                 verify(_listener.getMock()).fileCreated(_data.getFile(FILE1));
  57         }
  58
  59         public void testFileDeleted() {
  60                 _data.createFile(FILE1, "hello");
  61                 _monitor.poll();
  62                 _listener.reset();
  63
  64                 _data.deleteFile(FILE1);
  65                 _monitor.poll();
  66
  67                 verify(_listener.getMock()).fileDeleted(_data.getFile(FILE1));
  68                 verifyNoMoreInteractions(_listener.getMock());
  69         }
  70
  71         public void testFileChanged() throws InterruptedException {
  72                 _data.createFile(FILE1, "hello");
  73                 _monitor.poll();
  74                 _listener.reset();
  75
  76                 Thread.sleep(2000);
  77                 _data.deleteFile(FILE1);
  78                 _data.createFile(FILE1, "bla");
  79
  80                 _monitor.poll();
  81                 verify(_listener.getMock()).fileChanged(_data.getFile(FILE1));
  82                 verifyNoMoreInteractions(_listener.getMock());
  83         }
  84
  85         public void testFileFilterIsUsed() {
  86                 _monitor.poll();
  87
  88                 _data.createFile("file.xml", "hello");
  89                 _monitor.poll();
  90                 verifyNoMoreInteractions(_listener.getMock());
  91         }
  92
  93         public void testDirectoryIsIgnored() {
  94                 _monitor.poll();
  95                 _data.createDir(FILE1);
  96                 _monitor.poll();
  97                 verifyNoMoreInteractions(_listener.getMock());
  98         }
  99
 100         public void testExceptionsWIllLeadToRepeatedNotifications() {
 101                 _monitor.poll();
 102                 _data.createFile(FILE1, "hello");
 103
 104                 stubVoid(_listener.getMock()).toThrow(new RuntimeException()).on().
 105                  fileCreated(_data.getFile(FILE1));
 106
 107                 try {
 108                     _monitor.poll();
 109                 } catch (RuntimeException e) {
 110                         _listener.reset();
 111
 112                         // polling again should lead to the same filecreated call.
 113                         // this time no exception is thrown.
 114
 115                         _monitor.poll();
 116                         verify(_listener.getMock()).fileCreated(_data.getFile(FILE1));
 117                         verifyNoMoreInteractions(_listener.getMock());
 118                         return;
 119                 }
 120                 fail(); // should not get here.
 121
 122
 123         }
 124 }