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use std::collections::BTreeMap;
use std::future::Future;
use super::{NixSerialize, NixWrite};
impl<T> NixSerialize for Vec<T>
where
T: NixSerialize + Send + Sync,
{
#[allow(clippy::manual_async_fn)]
fn serialize<W>(&self, writer: &mut W) -> impl Future<Output = Result<(), W::Error>> + Send
where
W: NixWrite,
{
async move {
writer.write_value(&self.len()).await?;
for value in self.iter() {
writer.write_value(value).await?;
}
Ok(())
}
}
}
impl<K, V> NixSerialize for BTreeMap<K, V>
where
K: NixSerialize + Ord + Send + Sync,
V: NixSerialize + Send + Sync,
{
#[allow(clippy::manual_async_fn)]
fn serialize<W>(&self, writer: &mut W) -> impl Future<Output = Result<(), W::Error>> + Send
where
W: NixWrite,
{
async move {
writer.write_value(&self.len()).await?;
for (key, value) in self.iter() {
writer.write_value(key).await?;
writer.write_value(value).await?;
}
Ok(())
}
}
}
#[cfg(test)]
mod test {
use std::collections::BTreeMap;
use std::fmt;
use hex_literal::hex;
use rstest::rstest;
use tokio::io::AsyncWriteExt as _;
use tokio_test::io::Builder;
use crate::nix_daemon::ser::{NixSerialize, NixWrite, NixWriter};
#[rstest]
#[case::empty(vec![], &hex!("0000 0000 0000 0000"))]
#[case::one(vec![0x29], &hex!("0100 0000 0000 0000 2900 0000 0000 0000"))]
#[case::two(vec![0x7469, 10], &hex!("0200 0000 0000 0000 6974 0000 0000 0000 0A00 0000 0000 0000"))]
#[tokio::test]
async fn test_write_small_vec(#[case] value: Vec<usize>, #[case] data: &[u8]) {
let mock = Builder::new().write(data).build();
let mut writer = NixWriter::new(mock);
writer.write_value(&value).await.unwrap();
writer.flush().await.unwrap();
}
fn empty_map() -> BTreeMap<usize, u64> {
BTreeMap::new()
}
macro_rules! map {
($($key:expr => $value:expr),*) => {{
let mut ret = BTreeMap::new();
$(ret.insert($key, $value);)*
ret
}};
}
#[rstest]
#[case::empty(empty_map(), &hex!("0000 0000 0000 0000"))]
#[case::one(map![0x7469usize => 10u64], &hex!("0100 0000 0000 0000 6974 0000 0000 0000 0A00 0000 0000 0000"))]
#[tokio::test]
async fn test_write_small_btree_map<E>(#[case] value: E, #[case] data: &[u8])
where
E: NixSerialize + Send + PartialEq + fmt::Debug,
{
let mock = Builder::new().write(data).build();
let mut writer = NixWriter::new(mock);
writer.write_value(&value).await.unwrap();
writer.flush().await.unwrap();
}
}
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