diff --git a/implementations/rust/src/lib.rs b/implementations/rust/src/lib.rs
index ee5f9f6..1b63b94 100644
--- a/implementations/rust/src/lib.rs
+++ b/implementations/rust/src/lib.rs
@@ -206,6 +206,23 @@ mod decoder_tests {
         assert_eq!(v.annotations().len(), 0);
         assert_eq!(v.value(), &Value::from(1));
     }
+
+    #[test] fn two_values_at_once() {
+        let mut buf = &b"\x81tPing\x81tPong"[..];
+        assert_eq!(buf.len(), 12);
+        let mut d = Decoder::<_, PlainValue>::new(&mut buf, None);
+        assert_eq!(d.next().unwrap().value(), &Value::simple_record("Ping", vec![]));
+        assert_eq!(d.next().unwrap().value(), &Value::simple_record("Pong", vec![]));
+        assert_eq!(buf.len(), 0);
+    }
+
+    #[test] fn buf_advanced() {
+        let mut buf = &b"\x81tPing\x81tPong"[..];
+        assert_eq!(buf.len(), 12);
+        let mut d = Decoder::<_, PlainValue>::new(&mut buf, None);
+        assert_eq!(d.next().unwrap().value(), &Value::simple_record("Ping", vec![]));
+        assert_eq!(buf.len(), 6);
+    }
 }
 
 #[cfg(test)]