initial commit

exercises/04_traits/06_str_slice/Cargo.toml

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

exercises/04_traits/06_str_slice/src/lib.rs

@@ -0,0 +1,61 @@
+// TODO: Re-implement `Ticket`'s accessor methods. This time return a `&str` rather than a `&String`.
+
+pub struct Ticket {
+    title: String,
+    description: String,
+    status: String,
+}
+
+impl Ticket {
+    pub fn new(title: String, description: String, status: String) -> Ticket {
+        if title.is_empty() {
+            panic!("Title cannot be empty");
+        }
+        if title.len() > 50 {
+            panic!("Title cannot be longer than 50 bytes");
+        }
+        if description.is_empty() {
+            panic!("Description cannot be empty");
+        }
+        if description.len() > 500 {
+            panic!("Description cannot be longer than 500 bytes");
+        }
+        if status != "To-Do" && status != "In Progress" && status != "Done" {
+            panic!("Only `To-Do`, `In Progress`, and `Done` statuses are allowed");
+        }
+
+        Ticket {
+            title,
+            description,
+            status,
+        }
+    }
+
+    pub fn title(&self) -> &String {
+        &self.title
+    }
+
+    pub fn description(&self) -> &String {
+        &self.description
+    }
+
+    pub fn status(&self) -> &String {
+        &self.status
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use common::{valid_description, valid_title};
+    use std::any::{Any, TypeId};
+
+    #[test]
+    fn test_type() {
+        let ticket = Ticket::new(valid_title(), valid_description(), "To-Do".to_string());
+        // Some dark magic to verify that you used the expected return types
+        assert_eq!(TypeId::of::<str>(), ticket.title().type_id());
+        assert_eq!(TypeId::of::<str>(), ticket.description().type_id());
+        assert_eq!(TypeId::of::<str>(), ticket.status().type_id());
+    }
+}