chore: checkpoint before Python removal

vendor/ed25519/tests/serde.rs

@@ -0,0 +1,62 @@
+//! Tests for serde serializers/deserializers
+
+#![cfg(feature = "serde")]
+
+use ed25519::{Signature, SignatureBytes};
+use hex_literal::hex;
+
+const EXAMPLE_SIGNATURE: SignatureBytes = hex!(
+    "3f3e3d3c3b3a393837363534333231302f2e2d2c2b2a29282726252423222120"
+    "1f1e1d1c1b1a191817161514131211100f0e0d0c0b0a09080706050403020100"
+);
+
+#[test]
+fn test_serialize() {
+    let signature = Signature::try_from(&EXAMPLE_SIGNATURE[..]).unwrap();
+    dbg!(&signature);
+    let encoded_signature: Vec<u8> = bincode::serialize(&signature).unwrap();
+    assert_eq!(&EXAMPLE_SIGNATURE[..], &encoded_signature[..]);
+}
+
+#[test]
+fn test_deserialize() {
+    let signature = bincode::deserialize::<Signature>(&EXAMPLE_SIGNATURE).unwrap();
+    assert_eq!(EXAMPLE_SIGNATURE, signature.to_bytes());
+}
+
+#[cfg(feature = "serde_bytes")]
+#[test]
+fn test_serialize_bytes() {
+    use bincode::Options;
+
+    let signature = Signature::try_from(&EXAMPLE_SIGNATURE[..]).unwrap();
+
+    let mut encoded_signature = Vec::new();
+    let options = bincode::DefaultOptions::new()
+        .with_fixint_encoding()
+        .allow_trailing_bytes();
+    let mut serializer = bincode::Serializer::new(&mut encoded_signature, options);
+    serde_bytes::serialize(&signature, &mut serializer).unwrap();
+
+    let mut expected = Vec::from(Signature::BYTE_SIZE.to_le_bytes());
+    expected.extend(&EXAMPLE_SIGNATURE[..]);
+    assert_eq!(&expected[..], &encoded_signature[..]);
+}
+
+#[cfg(feature = "serde_bytes")]
+#[test]
+fn test_deserialize_bytes() {
+    use bincode::Options;
+
+    let mut encoded_signature = Vec::from(Signature::BYTE_SIZE.to_le_bytes());
+    encoded_signature.extend(&EXAMPLE_SIGNATURE[..]);
+
+    let options = bincode::DefaultOptions::new()
+        .with_fixint_encoding()
+        .allow_trailing_bytes();
+    let mut deserializer = bincode::de::Deserializer::from_slice(&encoded_signature[..], options);
+
+    let signature: Signature = serde_bytes::deserialize(&mut deserializer).unwrap();
+
+    assert_eq!(EXAMPLE_SIGNATURE, signature.to_bytes());
+}