@Test
public void testModifyFile() throws Exception {
log.debug("**** testModifyFile **** ");
File f = new File(mytempdir + File.separator + "just_edited");
writeInFile(f, "foo, bar");
long interval = 700;
try {
final Semaphore s = new Semaphore(0);
fw = new FolderWatcher(new File(mytempdir), interval);
fw.initialRun();
IModificationListener failer =
new IModificationListener() {
public void fileModified(File f, ModifyActions action) {
Assert.fail("Got unwanted event: " + f.getAbsolutePath() + ":" + action);
}
};
fw.addListener(failer);
fw.run();
awaitNextTimeUnit();
log.debug("We expect no event.");
writeInFile(f, "foo, bar");
Thread.sleep(interval * 3);
fw.removeListener(failer);
fw.addListener(
new IModificationListener() {
public void fileModified(File f, ModifyActions action) {
log.debug("got event: " + f.getAbsolutePath() + ":" + action);
Assert.assertEquals("just_edited", f.getName());
Assert.assertEquals(ModifyActions.MODIFIED, action);
s.release();
}
});
awaitNextTimeUnit();
log.debug("We expect no event.");
writeInFile(f, "bar, baz");
Assert.assertTrue("Real content change", s.tryAcquire(interval * 3, TimeUnit.MILLISECONDS));
fw.cancel();
f.delete();
System.gc();
f.delete();
Assert.assertFalse(f.exists());
} catch (Exception e) {
fw.cancel();
f.delete();
throw e;
}
}
