use macros

src/about_variables.rs

@@ -1,20 +1,20 @@
 #[allow(dead_code)]
-mod about_variables {
-    pub fn guess_this () -> i32 {
-        let one = 5;
-        let two = 7;
-        let three = 3;
-        let result = (one + two) / three;
-        return result;
-    }
+pub fn guess_this () -> i32 {
+    let one = 5;
+    let two = 7;
+    let three = 3;
+    let result = (one + two) / three;
+    return result;
 }
 
-#[cfg(test)]
 mod tests {
-    use super::about_variables::*;
+    use super::*;
 
-    #[test]
-    fn test_complicated () {
-        assert_eq!(___, guess_this());
+    pub fn test_complicated () {
+        assert_eq!(1, guess_this());
     }
 }
+
+pub fn exec () {
+    tests::test_complicated();
+}