@Test
public void success_GeneratePublicKeySeed_via_KECCAK_512_from_hex_string_2() {

    PrivateKey privateKey = PrivateKeyEd25519.fromHexString("25606d80d94ba30aa2fa25709eba75515c5e480c3c9e7d9dcefd08a01909ef97");
    byte[] seed = delegate.generatePublicKeySeed(privateKey);
    assertThat(HexEncoder.getString(seed), is("57c9d82d5856f1634f535f8d9774215fcffa3d04e5fd441c7ede5fab03c104c2"));
}