### Question:
AccountAddress implements ByteSequence { public static AccountAddress fromHexString(String hexString) { return new AccountAddress(ByteArray.from(hexString)); } private  AccountAddress(ByteArray bytes); static AccountAddress fromAuthenticationKey(AuthenticationKey authenticationKey); static AccountAddress fromByteArray(ByteArray bytes); static AccountAddress fromHexString(String hexString); @Override byte[] toArray(); @Override String toString();  }### Answer:
@Test public void testFromHexString() { assertThat(AccountAddress.fromHexString(ACCOUNT_ADDRESS).toString(), is(ACCOUNT_ADDRESS)); }