initial commit

exercises/04_traits/07_deref/Cargo.toml

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+[package]
+name = "deref"
+version = "0.1.0"
+edition = "2021"

exercises/04_traits/07_deref/src/lib.rs

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+// TODO: whenever `title` and `description` are returned via their accessor methods, they
+//   should be normalized—i.e. leading and trailing whitespace should be removed.
+//   There is a method in Rust's standard library that can help with this, but you won't
+//   find it in the documentation for `String`.
+//   Can you figure out where it is defined and how to use it?
+
+pub struct Ticket {
+    title: String,
+    description: String,
+    status: String,
+}
+
+impl Ticket {
+    pub fn title(&self) -> &str {
+        todo!()
+    }
+
+    pub fn description(&self) -> &str {
+        todo!()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_normalization() {
+        let ticket = Ticket {
+            title: "   A title ".to_string(),
+            description: " A description   ".to_string(),
+            status: "To-Do".to_string(),
+        };
+
+        assert_eq!("A title", ticket.title());
+        assert_eq!("A description", ticket.description());
+    }
+}