diff --git a/src/day01.rs b/src/day01.rs
index 9367924..00ffc9a 100644
--- a/src/day01.rs
+++ b/src/day01.rs
@@ -1,4 +1,4 @@
-#[derive(Eq, PartialEq, Ord, PartialOrd, Clone)]
+
 pub struct Day01(Vec<i32>);
 
 impl crate::day::Day for Day01 {
diff --git a/src/day02.rs b/src/day02.rs
index 74ec884..c1a5c66 100644
--- a/src/day02.rs
+++ b/src/day02.rs
@@ -95,4 +95,11 @@ forward 2";
         let d = Day02::init(f);
         assert_eq!("1592426537", d.part2())
     }
+
+    #[test]
+    #[should_panic]
+    fn very_invalid_input(){
+        let f = String::from("invalid 10");
+        let d = Day02::init(f);
+    }
 }
\ No newline at end of file