Method join

src/protocol/tests.rs:62–82

(&self, append_length: bool, code: Option<u8>)

        }

        pub fn join(&self, append_length: bool, code: Option<u8>) -> Vec<u8> {
            let body_len: usize = self.buffers.iter().map(|b| b.len()).sum();
            let mut result = Vec::with_capacity(
                body_len + usize::from(append_length) * 4 + usize::from(code.is_some()),
            );

            if let Some(code) = code {
                result.push(code);
            }

            if append_length {
                let length = (body_len + 4) as i32;
                result.extend_from_slice(&length.to_be_bytes());
            }

            for part in &self.buffers {
                result.extend_from_slice(part);
            }

            result
        }
    }

    pub fn concat_slices(parts: &[&[u8]]) -> Vec<u8> {