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//! Tests for SPKI encoding/decoding traits.
#![cfg(any(feature = "pem", feature = "std"))]
use der::{Decode, Encode};
use spki::{DecodePublicKey, Document, EncodePublicKey, Error, Result, SubjectPublicKeyInfoRef};
#[cfg(feature = "pem")]
use spki::der::pem::LineEnding;
#[cfg(feature = "std")]
use tempfile::tempdir;
#[cfg(all(feature = "pem", feature = "std"))]
use std::fs;
/// Ed25519 `SubjectPublicKeyInfo` encoded as ASN.1 DER
const ED25519_DER_EXAMPLE: &[u8] = include_bytes!("examples/ed25519-pub.der");
/// Ed25519 public key encoded as PEM
#[cfg(feature = "pem")]
const ED25519_PEM_EXAMPLE: &str = include_str!("examples/ed25519-pub.pem");
/// Mock key type for testing trait impls against.
pub struct MockKey(Vec<u8>);
impl AsRef<[u8]> for MockKey {
fn as_ref(&self) -> &[u8] {
self.0.as_ref()
}
}
impl EncodePublicKey for MockKey {
fn to_public_key_der(&self) -> Result<Document> {
Ok(Document::from_der(self.as_ref())?)
}
}
impl TryFrom<SubjectPublicKeyInfoRef<'_>> for MockKey {
type Error = Error;
fn try_from(spki: SubjectPublicKeyInfoRef<'_>) -> Result<MockKey> {
Ok(MockKey(spki.to_der()?))
}
}
#[cfg(feature = "pem")]
#[test]
fn from_public_key_pem() {
let key = MockKey::from_public_key_pem(ED25519_PEM_EXAMPLE).unwrap();
assert_eq!(key.as_ref(), ED25519_DER_EXAMPLE);
}
#[cfg(feature = "std")]
#[test]
fn read_public_key_der_file() {
let key = MockKey::read_public_key_der_file("tests/examples/ed25519-pub.der").unwrap();
assert_eq!(key.as_ref(), ED25519_DER_EXAMPLE);
}
#[cfg(all(feature = "pem", feature = "std"))]
#[test]
fn read_public_key_pem_file() {
let key = MockKey::read_public_key_pem_file("tests/examples/ed25519-pub.pem").unwrap();
assert_eq!(key.as_ref(), ED25519_DER_EXAMPLE);
}
#[cfg(feature = "pem")]
#[test]
fn to_public_key_pem() {
let pem = MockKey(ED25519_DER_EXAMPLE.to_vec())
.to_public_key_pem(LineEnding::LF)
.unwrap();
assert_eq!(pem, ED25519_PEM_EXAMPLE);
}
#[cfg(feature = "std")]
#[test]
fn write_public_key_der_file() {
let dir = tempdir().unwrap();
let path = dir.path().join("example.der");
MockKey(ED25519_DER_EXAMPLE.to_vec())
.write_public_key_der_file(&path)
.unwrap();
let key = MockKey::read_public_key_der_file(&path).unwrap();
assert_eq!(key.as_ref(), ED25519_DER_EXAMPLE);
}
#[cfg(all(feature = "pem", feature = "std"))]
#[test]
fn write_public_key_pem_file() {
let dir = tempdir().unwrap();
let path = dir.path().join("example.pem");
MockKey(ED25519_DER_EXAMPLE.to_vec())
.write_public_key_pem_file(&path, LineEnding::LF)
.unwrap();
let pem = fs::read_to_string(path).unwrap();
assert_eq!(&pem, ED25519_PEM_EXAMPLE);
}
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