Solve 2015.12.01

output/2015/12.txt

@@ -0,0 +1,2 @@
+191164
+0

src/aoc2015/day12.rs

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+use regex::Regex;
+
+pub fn solve_part_one(input: &String) -> i32 {
+    let re: Regex = Regex::new(r"(-?\d+)").unwrap();
+    re.captures_iter(input)
+        .map(|capture| capture.get(1).unwrap().as_str().parse::<i32>().unwrap())
+        .sum()
+}
+
+pub fn solve_part_two(input: &String) -> i32 {
+    0
+}
+
+#[cfg(test)]
+mod tests {
+    use rstest::rstest;
+
+    use super::{solve_part_one, solve_part_two};
+
+    #[rstest]
+    #[case(indoc::indoc ! {"
+        123 -> a
+    "}.to_string(), 123)]
+    fn test_part_one(#[case] input: String, #[case] expected: i32) {
+        assert_eq!(expected, solve_part_one(&input))
+    }
+
+    #[rstest]
+    #[case("str", 0)]
+    fn test_part_two(#[case] input: String, #[case] expected: i32) {
+        assert_eq!(expected, solve_part_two(&input))
+    }
+}