aurelia 0.1.0

Embeddable service mesh for Rust distributed applications.
Documentation 
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// This file is part of the Aurelia workspace.
// SPDX-FileCopyrightText: 2026 Zivatar Limited
// SPDX-License-Identifier: Apache-2.0

use bytes::Bytes;

use crate::ids::ErrorId;
use crate::peering::wire::{
    BlobChunkFlags, BlobTransferChunkPayload, BlobTransferStartPayload, HelloPayload, WireFlags,
};

#[test]
fn wire_flags_values_are_stable() {
    assert_eq!(WireFlags::BLOB.bits(), 0x0001);
    assert_eq!(WireFlags::RECONNECT.bits(), 0x0002);
}

#[test]
fn hello_payload_roundtrip_primary() {
    let payload = HelloPayload {
        chunk_size: None,
        ack_window_chunks: None,
    };
    let bytes = payload.to_bytes();
    assert!(bytes.is_empty());
    let decoded = HelloPayload::from_bytes(&bytes).expect("decode primary");
    assert_eq!(decoded, payload);
}

#[test]
fn hello_payload_roundtrip_blob() {
    let payload = HelloPayload {
        chunk_size: Some(1200),
        ack_window_chunks: Some(64),
    };
    let bytes = payload.to_bytes();
    assert_eq!(bytes.len(), HelloPayload::BLOB_LEN);
    let decoded = HelloPayload::from_bytes(&bytes).expect("decode blob");
    assert_eq!(decoded, payload);
}

#[test]
fn hello_payload_rejects_invalid_length() {
    let bytes = vec![0u8; 3];
    assert!(HelloPayload::from_bytes(&bytes).is_err());
}

#[test]
fn blob_transfer_start_roundtrip() {
    let payload = BlobTransferStartPayload { request_msg_id: 42 };
    let bytes = payload.to_bytes();
    let decoded = BlobTransferStartPayload::from_bytes(&bytes).expect("decode start");
    assert_eq!(decoded, payload);
}

#[test]
fn blob_transfer_start_rejects_invalid_length() {
    let bytes = [0u8; 3];
    assert!(BlobTransferStartPayload::from_bytes(&bytes).is_err());
}

#[test]
fn blob_transfer_chunk_roundtrip() {
    let payload = BlobTransferChunkPayload {
        request_msg_id: 7,
        chunk_id: 2,
        flags: BlobChunkFlags::LAST_CHUNK,
        chunk: Bytes::from_static(b"abc"),
    };
    let bytes = payload.to_bytes();
    let decoded = BlobTransferChunkPayload::from_bytes(&bytes).expect("decode chunk");
    assert_eq!(decoded, payload);
}

#[test]
fn blob_transfer_chunk_rejects_invalid_length() {
    let payload = BlobTransferChunkPayload {
        request_msg_id: 1,
        chunk_id: 0,
        flags: BlobChunkFlags::empty(),
        chunk: Bytes::from_static(b"abc"),
    };
    let mut bytes = payload.to_bytes();
    bytes.pop();
    assert!(BlobTransferChunkPayload::from_bytes(&bytes).is_err());
}

#[test]
fn blob_transfer_chunk_rejects_unknown_flags() {
    let payload = BlobTransferChunkPayload {
        request_msg_id: 7,
        chunk_id: 2,
        flags: BlobChunkFlags::empty(),
        chunk: Bytes::from_static(b"abc"),
    };
    let mut bytes = payload.to_bytes();
    bytes[12] = 0x80;
    bytes[13] = 0x00;
    let err = BlobTransferChunkPayload::from_bytes(&bytes).expect_err("expected invalid flags");
    assert_eq!(err.kind, ErrorId::ProtocolViolation);
}