quiz2 solution

exercises/quizzes/quiz2.rs

@@ -11,10 +11,11 @@
 // - Uppercase the string
 // - Trim the string
 // - Append "bar" to the string a specified amount of times
+//
 // The exact form of this will be:
-// - The input is going to be a Vector of a 2-length tuple,
+// - The input is going to be a vector of a 2-length tuple,
 //   the first element is the string, the second one is the command.
-// - The output element is going to be a Vector of strings.
+// - The output element is going to be a vector of strings.
 
 enum Command {
     Uppercase,
@@ -25,15 +26,8 @@ enum Command {
 mod my_module {
     use super::Command;
 
-    // TODO: Complete the function signature!
-    pub fn transformer(input: ???) -> ??? {
-        // TODO: Complete the output declaration!
-        let mut output: ??? = vec![];
-        for (string, command) in input.iter() {
-            // TODO: Complete the function body. You can do it!
-        }
-        output
-    }
+    // TODO: Complete the function.
+    // pub fn transformer(input: ???) -> ??? { ??? }
 }
 
 fn main() {
@@ -43,20 +37,27 @@ fn main() {
 #[cfg(test)]
 mod tests {
     // TODO: What do we need to import to have `transformer` in scope?
-    use ???;
+    // use ???;
     use super::Command;
 
     #[test]
     fn it_works() {
-        let output = transformer(vec![
-            ("hello".into(), Command::Uppercase),
-            (" all roads lead to rome! ".into(), Command::Trim),
-            ("foo".into(), Command::Append(1)),
-            ("bar".into(), Command::Append(5)),
-        ]);
-        assert_eq!(output[0], "HELLO");
-        assert_eq!(output[1], "all roads lead to rome!");
-        assert_eq!(output[2], "foobar");
-        assert_eq!(output[3], "barbarbarbarbarbar");
+        let input = vec![
+            ("hello".to_string(), Command::Uppercase),
+            (" all roads lead to rome! ".to_string(), Command::Trim),
+            ("foo".to_string(), Command::Append(1)),
+            ("bar".to_string(), Command::Append(5)),
+        ];
+        let output = transformer(input);
+
+        assert_eq!(
+            output,
+            [
+                "HELLO",
+                "all roads lead to rome!",
+                "foobar",
+                "barbarbarbarbarbar",
+            ]
+        );
     }
 }