@Override
  public int mkdir(String path, long mode) {
    return AlluxioFuseUtils.call(LOG, () -> mkdirInternal(path, mode),
        FuseConstants.FUSE_MKDIR, "path=%s,mode=%o,", path, mode);
  }
@Test
  public void mkDirWithLengthLimit() {
    long mode = 0755L;
    String c256 = String.join("", Collections.nCopies(16, "0123456789ABCDEF"));
    assertEquals(-ErrorCodes.ENAMETOOLONG(),
        mFuseFs.mkdir("/foo/" + c256, mode));
  }