in src/lib.rs [211:218]
fn test_conv_fn() -> Result<()> {
let (local_key, auth) = generate_keypair_and_auth_secret()?;
let plaintext = b"Mary had a little lamb, with some nice mint jelly";
let encoded = encrypt(&local_key.pub_as_raw()?, &auth, plaintext).unwrap();
let decoded = decrypt(&local_key.raw_components()?, &auth, &encoded)?;
assert_eq!(decoded, plaintext.to_vec());
Ok(())
}