//! Backup container round-trip + error-path coverage.

use relicario_core::backup::{pack_backup, unpack_backup, BackupInput, BackupOutput};

fn empty_input() -> BackupInput<'static> {
    BackupInput {
        salt: &[0u8; 32],
        params_json: r#"{"format_version":2,"kdf":{"argon2_m":256,"argon2_t":1,"argon2_p":1},"aead":"xchacha20poly1305","salt_path":".relicario/salt"}"#,
        devices_json: "[]",
        manifest_enc: &[],
        settings_enc: &[],
        items: vec![],
        attachments: vec![],
        reference_jpg: None,
        git_archive: None,
    }
}

#[test]
fn empty_vault_round_trip() {
    let out = pack_backup(empty_input(), "test-passphrase-1234").unwrap();
    assert_eq!(&out[..4], b"RBAK", "magic header");
    assert_eq!(out[4], 0x01, "format version");

    let unpacked = unpack_backup(&out, "test-passphrase-1234").unwrap();
    assert_eq!(unpacked.salt, [0u8; 32]);
    assert!(unpacked.devices_json.contains("[]"));
    assert!(unpacked.items.is_empty());
    assert!(unpacked.attachments.is_empty());
    assert!(unpacked.reference_jpg.is_none());
    assert!(unpacked.git_archive.is_none());
}