new byte[] {(byte)0xef, xFF, xFF, xFF, xFF, xFF, xFF, xFF});
}
@Test
public void testUserInput() {
SplitAlgorithm algo = new HexStringSplit();
assertFalse(splitFailsPrecondition(algo)); // default settings are fine
assertFalse(splitFailsPrecondition(algo, "00", "AA")); // custom is fine
assertTrue(splitFailsPrecondition(algo, "AA", "00")); // range error
assertTrue(splitFailsPrecondition(algo, "AA", "AA")); // range error
assertFalse(splitFailsPrecondition(algo, "0", "2", 3)); // should be fine