#[cfg(feature = "derive")]
mod tests {
    use bufferfish::{Bufferfish, Encodable};
    use bufferfish_derive::Encode;

    #[test]
    fn encode_struct() {
        #[derive(Encode, Debug)]
        #[bufferfish(0_u16)]
        struct Foo {
            bar: u8,
        }

        let foo = Foo { bar: 42 };
        let bf: Bufferfish = foo.to_bufferfish().unwrap();

        assert_eq!(bf.len(), 3);
    }
}