Add second test for day2/part1 now that I know the solution

day2/src/part1.rs

@@ -138,4 +138,9 @@ Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red
 Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green";
         assert_eq!(main(input), 8);
     }
+
+    #[test]
+    fn solution() {
+        assert_eq!(main(include_str!("input.txt")), 2476)
+    }
 }