100 exercises to learn Rust

exercises/05_ticket_v2/15_outro/src/status.rs

@@ -0,0 +1,44 @@
+// TODO: Implement `TryFrom<String>` and `TryFrom<&str>` for the `Status` enum.
+//  The parsing should be case-insensitive.
+
+pub enum Status {
+    ToDo,
+    InProgress,
+    Done,
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::convert::TryFrom;
+
+    #[test]
+    fn test_try_from_string() {
+        let status = Status::try_from("ToDO".to_string()).unwrap();
+        assert_eq!(status, Status::ToDo);
+
+        let status = Status::try_from("inproGress".to_string()).unwrap();
+        assert_eq!(status, Status::InProgress);
+
+        let status = Status::try_from("Done".to_string()).unwrap();
+        assert_eq!(status, Status::Done);
+    }
+
+    #[test]
+    fn test_try_from_str() {
+        let status = Status::try_from("ToDO").unwrap();
+        assert_eq!(status, Status::ToDo);
+
+        let status = Status::try_from("inproGress").unwrap();
+        assert_eq!(status, Status::InProgress);
+
+        let status = Status::try_from("Done").unwrap();
+        assert_eq!(status, Status::Done);
+    }
+
+    #[test]
+    fn test_try_from_invalid() {
+        let status = Status::try_from("Invalid");
+        assert!(status.is_err());
+    }
+}