@Override
  public UfsDirectoryStatus copy() {
    return new UfsDirectoryStatus(this);
  }
@Test
  public void copy() {
    short mode = 077;
    UfsDirectoryStatus statusToCopy =
        new UfsDirectoryStatus("name", "owner", "group", mode);
    UfsDirectoryStatus status = new UfsDirectoryStatus(statusToCopy);
    assertEquals(statusToCopy, status);
  }