Clean up and unify exercises

1 files changed, 19 insertions, 15 deletions

diff --git a/exercises/06_move_semantics/move_semantics2.rs b/exercises/06_move_semantics/move_semantics2.rs
index 3457d11..d087911 100644
--- a/exercises/06_move_semantics/move_semantics2.rs
+++ b/exercises/06_move_semantics/move_semantics2.rs
@@ -1,19 +1,4 @@
-// move_semantics2.rs
-//
 // Make the test pass by finding a way to keep both Vecs separate!
-//
-// Execute `rustlings hint move_semantics2` or use the `hint` watch subcommand
-// for a hint.
-
-#[test]
-fn main() {
-    let vec0 = vec![22, 44, 66];
-
-    let vec1 = fill_vec(vec0);
-
-    assert_eq!(vec0, vec![22, 44, 66]);
-    assert_eq!(vec1, vec![22, 44, 66, 88]);
-}
 
 fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
     let mut vec = vec;
@@ -22,3 +7,22 @@ fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
 
     vec
 }
+
+fn main() {
+    // You can optionally experiment here.
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn move_semantics2() {
+        let vec0 = vec![22, 44, 66];
+
+        let vec1 = fill_vec(vec0);
+
+        assert_eq!(vec0, vec![22, 44, 66]);
+        assert_eq!(vec1, vec![22, 44, 66, 88]);
+    }
+}