diff --git a/src/message/mod.rs b/src/message/mod.rs
index 6acd3e3..f9f1ece 100644
--- a/src/message/mod.rs
+++ b/src/message/mod.rs
@@ -75,3 +75,32 @@ impl FromStr for Message {
         todo!()
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    static REC: &'static str = ": joe@example.org, jane@pizza.hut, mark@gemi.dev";
+
+    #[test]
+    fn parse_recipients() {
+        let rec: Recipients = REC.parse().unwrap();
+        assert!(rec.boxes.len() == 3);
+    }
+
+    #[test]
+    fn print_recipients() {
+        let rec: Recipients = REC.parse().unwrap();
+        assert_eq!(rec.to_string(), REC);
+    }
+
+    #[test]
+    fn parse_message() {
+        todo!()
+    }
+
+    #[test]
+    fn print_message() {
+        todo!()
+    }
+}