test(day02): clean up test input data definition

src/day02.rs

@@ -122,16 +122,17 @@ fn run() {
 mod tests {
     use super::*;
 
-    #[test]
-    fn test_part1_example() {
-        let input = r#"
+    const TEST_INPUT: &str = r#"
 Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green
 Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue
 Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red
 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!(part1(input), 8);
+
+    #[test]
+    fn test_part1_example() {
+        assert_eq!(part1(TEST_INPUT), 8);
     }
 
     #[test]
@@ -141,14 +142,7 @@ Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green
 
     #[test]
     fn test_part2_example() {
-        let input = r#"
-Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green
-Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue
-Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red
-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!(part2(input), 2286);
+        assert_eq!(part2(TEST_INPUT), 2286);
     }
     #[test]
     fn test_part2_actual() {