diff --git a/gen/rust/Cargo.lock b/gen/rust/Cargo.lock
index 6f9eaaa..f527aae 100644
--- a/gen/rust/Cargo.lock
+++ b/gen/rust/Cargo.lock
@@ -18,6 +18,7 @@ checksum = "b35204fbdc0b3f4446b89fc1ac2cf84a8a68971995d0bf2e925ec7cd960f9cb3"
 name = "chat-proto"
 version = "0.1.0"
 dependencies = [
+ "bytes",
  "prost",
 ]
 
diff --git a/gen/rust/Cargo.toml b/gen/rust/Cargo.toml
index 96d14d7..56cc506 100644
--- a/gen/rust/Cargo.toml
+++ b/gen/rust/Cargo.toml
@@ -5,3 +5,6 @@ edition = "2021"
 
 [dependencies]
 prost = "0.14"
+
+[dev-dependencies]
+bytes = "1.3"
diff --git a/gen/rust/src/lib.rs b/gen/rust/src/lib.rs
index d41c597..75700a9 100644
--- a/gen/rust/src/lib.rs
+++ b/gen/rust/src/lib.rs
@@ -28,3 +28,82 @@ pub mod wap {
         include!("wap/reliability/wap.reliability.rs");
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::wap::{
+        encryption::{encrypted_payload::Encryption, EncryptedPayload, Plaintext},
+        inbox::{inbox_v1_frame::FrameType, InboxV1Frame, Note},
+        invite::InvitePrivateV1,
+    };
+    use bytes::Bytes;
+    use prost::Message;
+
+    #[test]
+    fn test_encrypted_payload_roundtrip() {
+        let payload = EncryptedPayload {
+            encryption: Some(Encryption::Plaintext(Plaintext {
+                payload: Bytes::from_static(b"hello world"),
+            })),
+        };
+
+        // Encode to bytes
+        let mut buf = Vec::new();
+        payload.encode(&mut buf).expect("Encoding failed");
+
+        // Decode back
+        let decoded = EncryptedPayload::decode(&buf[..]).expect("Decoding failed");
+
+        match decoded.encryption {
+            Some(Encryption::Plaintext(p)) => {
+                assert_eq!(p.payload, Bytes::from_static(b"hello world"));
+            }
+            _ => panic!("Expected plaintext variant"),
+        }
+    }
+
+    #[test]
+    fn test_inbox_frame_roundtrip() {
+        let note = Note {
+            text: "This is a test note".to_string(),
+        };
+
+        let frame = InboxV1Frame {
+            recipient: "alice".to_string(),
+            frame_type: Some(FrameType::Note(note.clone())),
+        };
+
+        let mut buf = Vec::new();
+        frame.encode(&mut buf).expect("Encoding failed");
+
+        let decoded = InboxV1Frame::decode(&buf[..]).expect("Decoding failed");
+
+        match decoded.frame_type {
+            Some(FrameType::Note(n)) => {
+                assert_eq!(n.text, note.text);
+            }
+            _ => panic!("Expected Note variant"),
+        }
+    }
+
+    #[test]
+    fn test_invite_private_roundtrip() {
+        let invite = InvitePrivateV1 {
+            initiator: Bytes::from_static(b"initiator"),
+            initiator_ephemeral: Bytes::from_static(b"ephemeral"),
+            participant: Bytes::from_static(b"participant"),
+            participant_ephemeral_id: 42,
+            discriminator: "test_discriminator".to_string(),
+            initial_message: None, // skipping encrypted payload for simplicity
+        };
+
+        let mut buf = Vec::new();
+        invite.encode(&mut buf).expect("Encoding failed");
+
+        let decoded = InvitePrivateV1::decode(&buf[..]).expect("Decoding failed");
+
+        assert_eq!(decoded.initiator, Bytes::from_static(b"initiator"));
+        assert_eq!(decoded.participant_ephemeral_id, 42);
+        assert_eq!(decoded.discriminator, "test_discriminator");
+    }
+}