@Test
public void testCompareFsDirectories() throws Exception {

  setupCompareFs();
  assertEquals(FileUtil.compareFs(fs1,fs1),true);
  assertEquals(FileUtil.compareFs(fs1,fs2),false);
  assertEquals(FileUtil.compareFs(fs1,fs5),false);
  assertEquals(FileUtil.compareFs(fs3,fs4),true);
  assertEquals(FileUtil.compareFs(fs1,fs6),false);
}