chore: checkpoint before Python removal

vendor/ring/tests/signature_tests.rs

@@ -0,0 +1,30 @@
+#![allow(missing_docs)]
+
+use ring::signature;
+#[allow(deprecated)]
+use ring::test;
+
+#[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
+use wasm_bindgen_test::{wasm_bindgen_test as test, wasm_bindgen_test_configure};
+
+#[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
+wasm_bindgen_test_configure!(run_in_browser);
+
+#[test]
+fn signature_impl_test() {
+    test::compile_time_assert_clone::<signature::Signature>();
+    test::compile_time_assert_copy::<signature::Signature>();
+    test::compile_time_assert_send::<signature::Signature>();
+    test::compile_time_assert_sync::<signature::Signature>();
+
+    let unparsed_public_key =
+        signature::UnparsedPublicKey::new(&signature::ED25519, &[0x01, 0x02, 0x03]);
+
+    assert_eq!(
+        format!("{:?}", unparsed_public_key),
+        r#"UnparsedPublicKey { algorithm: ring::signature::ED25519, bytes: "010203" }"#
+    );
+
+    // Test `AsRef<[u8]>`
+    assert_eq!(unparsed_public_key.as_ref(), &[0x01, 0x02, 0x03]);
+}