uncomment some tests

src/day4.rs

@@ -75,10 +75,10 @@ mod test {
 
     #[test]
     fn test_verify_password2() {
-        //assert!(verify_password2(&112233));
+        assert!(verify_password2(&112233));
         assert!(!verify_password2(&123444));
-        //assert!(verify_password2(&111244));
-        //assert!(!verify_password2(&488884));
-        //assert!(verify_password2(&111122));
+        assert!(verify_password2(&111244));
+        assert!(!verify_password2(&488884));
+        assert!(verify_password2(&111122));
     }
 }