+ private static final String REGEX = "^.*\\.txt$";
+ private static final String FILE1 = "file1.txt";
+
+ private TestData _data;
+ private DirectoryMonitor.Listener _listener;
+ private DirectoryMonitor _monitor;
+
+ @Override
+ protected void setUp() throws Exception {
+ super.setUp();
+ _data = new TestData(this);
+ _data.clean();
+ _listener = EasyMock.createStrictMock(DirectoryMonitor.Listener.class);
+ _monitor = new DirectoryMonitor(_data.getRoot(), new AwkFilenameFilter(
+ REGEX), _listener);
+ }
+
+ public void testEmptyDir() {
+ // Nothing is expected to be called.
+ for (int i = 0; i < 10; i++) {
+ EasyMock.replay(_listener);
+ _monitor.poll();
+ EasyMock.verify(_listener);
+ EasyMock.reset(_listener);
+ }
+ }
+
+ public void testFileCreated() {
+ _listener.fileCreated(_data.getFile(FILE1));
+ EasyMock.replay(_listener);
+ _data.createFile(FILE1, "hello");
+ _monitor.poll();
+ EasyMock.verify(_listener);
+ }
+
+ public void testFileDeleted() {
+ _data.createFile(FILE1, "hello");
+ _monitor.poll();
+
+ EasyMock.reset(_listener);
+
+ _data.deleteFile(FILE1);
+ _listener.fileDeleted(_data.getFile(FILE1));
+ EasyMock.replay(_listener);
+ _monitor.poll();
+ EasyMock.verify(_listener);
+ }
+
+ public void testFileChanged() throws InterruptedException {
+ _data.createFile(FILE1, "hello");
+ _monitor.poll();
+ EasyMock.reset(_listener);
+
+ Thread.sleep(2000);
+ _data.deleteFile(FILE1);
+ _data.createFile(FILE1, "bla");
+
+ _listener.fileChanged(_data.getFile(FILE1));
+ EasyMock.replay(_listener);
+ _monitor.poll();
+ EasyMock.verify(_listener);
+ }
+
+ public void testFileFilterIsUsed() {
+ _monitor.poll();
+
+ _data.createFile("file.xml", "hello");
+ EasyMock.replay(_listener);
+ _monitor.poll();
+ EasyMock.verify(_listener);
+ }
+
+ public void testDirectoryIsIgnored() {
+ _monitor.poll();
+ _data.createDir(FILE1);
+ EasyMock.replay(_listener);
+ _monitor.poll();
+ EasyMock.verify(_listener);
+ }
+
+ public void testExceptionsWIllLeadToRepeatedNotifications() {
+ _monitor.poll();
+ _data.createFile(FILE1, "hello");
+
+ _listener.fileCreated(_data.getFile(FILE1));
+ EasyMock.expectLastCall().andThrow(new RuntimeException());
+ EasyMock.replay(_listener);
+ try {
+ _monitor.poll();
+ } catch (RuntimeException e) {
+ EasyMock.verify(_listener);
+ EasyMock.reset(_listener);
+
+ // polling again should lead to the same filecreated call.
+ // this time no exception is thrown.
+
+ _listener.fileCreated(_data.getFile(FILE1));
+ EasyMock.replay(_listener);
+ _monitor.poll();
+ EasyMock.verify(_listener);
+ return;
+ }
+ fail(); // should not get here.
+
+
+ }