initial commit

exercises/05_ticket_v2/13_try_from/src/lib.rs

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+// TODO: Implement `TryFrom<String>` and `TryFrom<&str>` for `Status`.
+//  The parsing should be case-insensitive.
+
+#[derive(Debug, PartialEq, Clone)]
+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);
+    }
+}