From f9b52302e80cbc0b7d898907a0e6da0232d28e13 Mon Sep 17 00:00:00 2001
From: taine <most-starving-drum@duck.com>
Date: Tue, 9 Jun 2026 11:03:41 +0200
Subject: [PATCH] Add negative test case (invalid input -> `Err` result)

---
 exercises/05_ticket_v2/13_try_from/src/lib.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/exercises/05_ticket_v2/13_try_from/src/lib.rs b/exercises/05_ticket_v2/13_try_from/src/lib.rs
index e0e1115..a7633f6 100644
--- a/exercises/05_ticket_v2/13_try_from/src/lib.rs
+++ b/exercises/05_ticket_v2/13_try_from/src/lib.rs
@@ -23,6 +23,12 @@ mod tests {
 
         let status = Status::try_from("Done".to_string()).unwrap();
         assert_eq!(status, Status::Done);
+
+        let empty = String::new();
+        assert!(Status::try_from(empty).is_err());
+
+        let invalid = "InValid".to_string();
+        assert!(Status::try_from(invalid).is_err());
     }
 
     #[test]
@@ -35,5 +41,8 @@ mod tests {
 
         let status = Status::try_from("done").unwrap();
         assert_eq!(status, Status::Done);
+
+        assert!(Status::try_from("").is_err());
+        assert!(Status::try_from("invalid").is_err());
     }
 }