finish structs exercises

exercises/structs/structs1.rs

@@ -1,13 +1,12 @@
 // structs1.rs
 // Address all the TODOs to make the tests pass!
 
-// I AM NOT DONE
-
-struct ColorClassicStruct {
-    // TODO: Something goes here
+struct ColorClassicStruct<'a> {
+    name: &'a str,
+    hex: &'a str,
 }
 
-struct ColorTupleStruct(/* TODO: Something goes here */);
+struct ColorTupleStruct<'a>(&'a str, &'a str);
 
 #[derive(Debug)]
 struct UnitStruct;
@@ -19,7 +18,10 @@ mod tests {
     #[test]
     fn classic_c_structs() {
         // TODO: Instantiate a classic c struct!
-        // let green =
+        let green = ColorClassicStruct {
+            name: "green",
+            hex: "#00FF00",
+        };
 
         assert_eq!(green.name, "green");
         assert_eq!(green.hex, "#00FF00");
@@ -28,7 +30,7 @@ mod tests {
     #[test]
     fn tuple_structs() {
         // TODO: Instantiate a tuple struct!
-        // let green =
+        let green = ColorTupleStruct("green", "#00FF00");
 
         assert_eq!(green.0, "green");
         assert_eq!(green.1, "#00FF00");
@@ -37,7 +39,7 @@ mod tests {
     #[test]
     fn unit_structs() {
         // TODO: Instantiate a unit struct!
-        // let unit_struct =
+        let unit_struct = UnitStruct;
         let message = format!("{:?}s are fun!", unit_struct);
 
         assert_eq!(message, "UnitStructs are fun!");

exercises/structs/structs2.rs

@@ -1,8 +1,6 @@
 // structs2.rs
 // Address all the TODOs to make the tests pass!
 
-// I AM NOT DONE
-
 #[derive(Debug)]
 struct Order {
     name: String,
@@ -34,7 +32,11 @@ mod tests {
     fn your_order() {
         let order_template = create_order_template();
         // TODO: Create your own order using the update syntax and template above!
-        // let your_order =
+        let your_order = Order {
+            name: "Hacker in Rust".to_string(),
+            count: 1,
+            ..order_template
+        };
         assert_eq!(your_order.name, "Hacker in Rust");
         assert_eq!(your_order.year, order_template.year);
         assert_eq!(your_order.made_by_phone, order_template.made_by_phone);

exercises/structs/structs3.rs

@@ -3,30 +3,33 @@
 // exercise we have defined the Package struct and we want to test some logic attached to it,
 // make the code compile and the tests pass! If you have issues execute `rustlings hint structs3`
 
-// I AM NOT DONE
-
 #[derive(Debug)]
 struct Package {
     from: String,
     to: String,
-    weight: f32
+    weight: f32,
 }
 
 impl Package {
     fn new(from: String, to: String, weight: f32) -> Package {
         if weight <= 0.0 {
-            // Something goes here...
+            let msg = format!("Weight must be greater than 0, {} specified", weight);
+            panic!(msg)
         } else {
-            return Package {from, to, weight};
+            return Package { from, to, weight };
         }
     }
 
-    fn is_international(&self) -> ??? {
-        // Something goes here...
+    fn is_international(&self) -> bool {
+        if self.from == self.to {
+            false
+        } else {
+            true
+        }
     }
 
-    fn get_fees(&self, cost_per_kg: f32) -> ??? {
-        // Something goes here...
+    fn get_fees(&self, cost_per_kg: f32) -> f32 {
+        self.weight * cost_per_kg
     }
 }
 
@@ -47,7 +50,6 @@ mod tests {
     fn create_international_package() {
         let country_from = String::from("Spain");
         let country_to = String::from("Russia");
-        
         let package = Package::new(country_from, country_to, 1.2);
 
         assert!(package.is_international());
@@ -58,10 +60,8 @@ mod tests {
         let country_from = String::from("Spain");
         let country_to = String::from("Spain");
 
-        let country_fee = ???;
-        
+        let country_fee = 8.;
         let package = Package::new(country_from, country_to, 22.0);
-        
         assert_eq!(package.get_fees(country_fee), 176.0);
     }
 }