public static String makeTiff(String ifd, boolean littleEndian) {
    String ret = littleEndian ? TIFF_HEADER_LE : TIFF_HEADER_BE;
    return ret + ifd;
  }
Provide test use functions for JfifUtilTest.
imagepipeline-base/src/test/java/com/facebook/imageutils/JfifTestUtils.java