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
  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
  31         private DirectoryMonitor monitor;
  32
  33         @Override
  34         protected void setUp() throws Exception {
  35                 super.setUp();
  36                 data = new TestData(this);
  37                 data.clean();
  38                 listener = mock(DirectoryMonitor.Listener.class);
  39                 monitor = new DirectoryMonitor(data.getRoot(), new AwkFilenameFilter(
  40                                 REGEX), listener);
  41         }
  42
  43         public void testEmptyDir() {
  44                 // Nothing is expected to be called.
  45                 for (int i = 0; i < 10; i++) {
  46                         monitor.poll();
  47                         verifyNoMoreInteractions(listener);
  48                 }
  49         }
  50
  51         public void testFileCreated() {
  52                 data.createFile(FILE1, "hello");
  53                 monitor.poll();
  54                 verify(listener).fileCreated(data.getFile(FILE1));
  55         }
  56
  57         public void testFileDeleted() {
  58                 data.createFile(FILE1, "hello");
  59                 monitor.poll();
  60                 reset(listener);
  61
  62                 data.deleteFile(FILE1);
  63                 monitor.poll();
  64
  65                 verify(listener).fileDeleted(data.getFile(FILE1));
  66                 verifyNoMoreInteractions(listener);
  67         }
  68
  69         public void testFileChanged() throws InterruptedException {
  70                 data.createFile(FILE1, "hello");
  71                 monitor.poll();
  72                 reset(listener);
  73
  74                 Thread.sleep(2000);
  75                 data.deleteFile(FILE1);
  76                 data.createFile(FILE1, "bla");
  77
  78                 monitor.poll();
  79                 verify(listener).fileChanged(data.getFile(FILE1));
  80                 verifyNoMoreInteractions(listener);
  81         }
  82
  83         public void testFileFilterIsUsed() {
  84                 monitor.poll();
  85
  86                 data.createFile("file.xml", "hello");
  87                 monitor.poll();
  88                 verifyNoMoreInteractions(listener);
  89         }
  90
  91         public void testDirectoryIsIgnored() {
  92                 monitor.poll();
  93                 data.createDir(FILE1);
  94                 monitor.poll();
  95                 verifyNoMoreInteractions(listener);
  96         }
  97
  98         public void testExceptionsWIllLeadToRepeatedNotifications() {
  99                 monitor.poll();
 100                 data.createFile(FILE1, "hello");
 101
 102                 stubVoid(listener).toThrow(new RuntimeException()).on().
 103                  fileCreated(data.getFile(FILE1));
 104
 105                 try {
 106                     monitor.poll();
 107                 } catch (RuntimeException e) {
 108                         reset(listener);
 109
 110                         // polling again should lead to the same filecreated call.
 111                         // this time no exception is thrown.
 112
 113                         monitor.poll();
 114                         verify(listener).fileCreated(data.getFile(FILE1));
 115                         verifyNoMoreInteractions(listener);
 116                         return;
 117                 }
 118                 fail(); // should not get here.
 119
 120
 121         }
 122 }