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 org.apache.oro.io.AwkFilenameFilter;
  19 import org.easymock.EasyMock;
  20
  21 import junit.framework.TestCase;
  22
  23 public class DirectoryMonitorTest extends TestCase {
  24
  25         private static final String REGEX = "^.*\\.txt$";
  26         private static final String FILE1 = "file1.txt";
  27
  28         private TestData _data;
  29         private DirectoryMonitor.Listener _listener;
  30         private DirectoryMonitor _monitor;
  31
  32         @Override
  33         protected void setUp() throws Exception {
  34                 super.setUp();
  35                 _data = new TestData(this);
  36                 _data.clean();
  37                 _listener = EasyMock.createStrictMock(DirectoryMonitor.Listener.class);
  38                 _monitor = new DirectoryMonitor(_data.getRoot(), new AwkFilenameFilter(
  39                                 REGEX), _listener);
  40         }
  41
  42         public void testEmptyDir() {
  43                 // Nothing is expected to be called.
  44                 for (int i = 0; i < 10; i++) {
  45                         EasyMock.replay(_listener);
  46                         _monitor.poll();
  47                         EasyMock.verify(_listener);
  48                         EasyMock.reset(_listener);
  49                 }
  50         }
  51
  52         public void testFileCreated() {
  53                 _listener.fileCreated(_data.getFile(FILE1));
  54                 EasyMock.replay(_listener);
  55                 _data.createFile(FILE1, "hello");
  56                 _monitor.poll();
  57                 EasyMock.verify(_listener);
  58         }
  59
  60         public void testFileDeleted() {
  61                 _data.createFile(FILE1, "hello");
  62                 _monitor.poll();
  63
  64                 EasyMock.reset(_listener);
  65
  66                 _data.deleteFile(FILE1);
  67                 _listener.fileDeleted(_data.getFile(FILE1));
  68                 EasyMock.replay(_listener);
  69                 _monitor.poll();
  70                 EasyMock.verify(_listener);
  71         }
  72
  73         public void testFileChanged() throws InterruptedException {
  74                 _data.createFile(FILE1, "hello");
  75                 _monitor.poll();
  76                 EasyMock.reset(_listener);
  77
  78                 Thread.sleep(2000);
  79                 _data.deleteFile(FILE1);
  80                 _data.createFile(FILE1, "bla");
  81
  82                 _listener.fileChanged(_data.getFile(FILE1));
  83                 EasyMock.replay(_listener);
  84                 _monitor.poll();
  85                 EasyMock.verify(_listener);
  86         }
  87
  88         public void testFileFilterIsUsed() {
  89                 _monitor.poll();
  90
  91                 _data.createFile("file.xml", "hello");
  92                 EasyMock.replay(_listener);
  93                 _monitor.poll();
  94                 EasyMock.verify(_listener);
  95         }
  96
  97         public void testDirectoryIsIgnored() {
  98                 _monitor.poll();
  99                 _data.createDir(FILE1);
 100                 EasyMock.replay(_listener);
 101                 _monitor.poll();
 102                 EasyMock.verify(_listener);
 103         }
 104
 105         public void testExceptionsWIllLeadToRepeatedNotifications() {
 106                 _monitor.poll();
 107                 _data.createFile(FILE1, "hello");
 108
 109                 _listener.fileCreated(_data.getFile(FILE1));
 110                 EasyMock.expectLastCall().andThrow(new RuntimeException());
 111                 EasyMock.replay(_listener);
 112                 try {
 113                     _monitor.poll();
 114                 } catch (RuntimeException e) {
 115                         EasyMock.verify(_listener);
 116                         EasyMock.reset(_listener);
 117
 118                         // polling again should lead to the same filecreated call.
 119                         // this time no exception is thrown.
 120
 121                         _listener.fileCreated(_data.getFile(FILE1));
 122                         EasyMock.replay(_listener);
 123                         _monitor.poll();
 124                         EasyMock.verify(_listener);
 125                         return;
 126                 }
 127                 fail(); // should not get here.
 128
 129
 130         }
 131 }