@Test (timeout = 30000)
public void testFailFullyDeleteContents() throws IOException {

  if(Shell.WINDOWS) {
    // windows Dir.setWritable(false) does not work for directories
    return;
  }
  LOG.info("Running test to verify failure of fullyDeleteContents()");
  setupDirsAndNonWritablePermissions();
  boolean ret = FileUtil.fullyDeleteContents(new MyFile(del));
  validateAndSetWritablePermissions(true, ret);
}