initial commit

exercises/05_ticket_v2/07_unwrap/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "unwrap"
+version = "0.1.0"
+edition = "2021"
+
+[dev-dependencies]
+common = { path = "../../../helpers/common" }

exercises/05_ticket_v2/07_unwrap/src/lib.rs

@@ -0,0 +1,73 @@
+// TODO: `easy_ticket` should panic when the title is invalid.
+//   When the description is invalid, instead, it should use a default description:
+//   "Description not provided".
+fn easy_ticket(title: String, description: String, status: Status) -> Ticket {
+    todo!()
+}
+
+#[derive(Debug, PartialEq, Clone)]
+struct Ticket {
+    title: String,
+    description: String,
+    status: Status,
+}
+
+#[derive(Debug, PartialEq, Clone)]
+enum Status {
+    ToDo,
+    InProgress { assigned_to: String },
+    Done,
+}
+
+impl Ticket {
+    pub fn new(title: String, description: String, status: Status) -> Result<Ticket, String> {
+        if title.is_empty() {
+            return Err("Title cannot be empty".to_string());
+        }
+        if title.len() > 50 {
+            return Err("Title cannot be longer than 50 bytes".to_string());
+        }
+        if description.is_empty() {
+            return Err("Description cannot be empty".to_string());
+        }
+        if description.len() > 500 {
+            return Err("Description cannot be longer than 500 bytes".to_string());
+        }
+
+        Ok(Ticket {
+            title,
+            description,
+            status,
+        })
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use common::{overly_long_description, overly_long_title, valid_description, valid_title};
+
+    #[test]
+    #[should_panic(expected = "Title cannot be empty")]
+    fn title_cannot_be_empty() {
+        easy_ticket("".into(), valid_description(), Status::ToDo);
+    }
+
+    #[test]
+    fn template_description_is_used_if_empty() {
+        let ticket = easy_ticket(valid_title(), "".into(), Status::ToDo);
+        assert_eq!(ticket.description, "Description not provided");
+    }
+
+    #[test]
+    #[should_panic(expected = "Title cannot be longer than 50 bytes")]
+    fn title_cannot_be_longer_than_fifty_chars() {
+        easy_ticket(overly_long_title(), valid_description(), Status::ToDo);
+    }
+
+    #[test]
+    fn template_description_is_used_if_too_long() {
+        let ticket = easy_ticket(valid_title(), overly_long_description(), Status::ToDo);
+        assert_eq!(ticket.description, "Description not provided");
+    }
+}