Execute UniFFI bindings via a simple Python test

mls-rs-uniffi/Cargo.toml

@@ -24,3 +24,7 @@ uniffi = "0.26.0"
 
 [target.'cfg(mls_build_async)'.dependencies]
 tokio = { version = "1.36.0", features = ["sync"] }
+
+[dev-dependencies]
+tempfile = "3.10.0"
+uniffi_bindgen = "0.26.0"

mls-rs-uniffi/src/lib.rs

@@ -17,6 +17,9 @@
 //!
 //! [UniFFI]: https://mozilla.github.io/uniffi-rs/
 
+#[cfg(test)]
+pub mod test_utils;
+
 use std::sync::Arc;
 
 #[cfg(not(mls_build_async))]
@@ -572,3 +575,20 @@ impl Group {
  }
  }
 }
+
+#[cfg(all(test, not(mls_build_async)))]
+mod sync_tests {
+ use crate::test_utils::run_python;
+
+ #[test]
+ fn test_generate_signature_keypair() -> Result<(), Box<dyn std::error::Error>> {
+ run_python(
+ r#"
+from mls_rs_uniffi import CipherSuite, generate_signature_keypair
+
+signature_keypair = generate_signature_keypair(CipherSuite.CURVE25519_AES128)
+assert signature_keypair.cipher_suite == CipherSuite.CURVE25519_AES128
+"#,
+ )
+ }
+}

mls-rs-uniffi/src/test_utils.rs

@@ -0,0 +1,21 @@
+use uniffi_bindgen::bindings::python;
+
+/// Run Python code in `script`.
+///
+/// The script can use `import mls_rs_uniffi` to get access to the
+/// Python bindings.
+pub fn run_python(script: &str) -> Result<(), Box<dyn std::error::Error>> {
+ let tmp_dir = tempfile::TempDir::with_prefix("run-python-")?;
+ let script_path = tmp_dir.path().join("script.py");
+ std::fs::write(&script_path, script)?;
+
+ python::run_script(
+ tmp_dir.path().to_str().unwrap(),
+ "mls-rs-uniffi",
+ script_path.to_str().unwrap(),
+ vec![],
+ &uniffi_bindgen::bindings::RunScriptOptions::default(),
+ )?;
+
+ Ok(())
+}