[TASK] Day 4 + performance improvements

src/dayX.rs

@@ -7,7 +7,7 @@ pub struct DayX {
 
 impl DayX {
 
-    pub fn create() -> Self {
+    pub fn create(input_filename: String) -> Self {
         let lines = util::read_file("input/dayX_example.txt");
         // let lines = util::read_file("input/dayX.txt");
 
@@ -27,3 +27,15 @@ impl DaySolver for DayX {
         return 0.to_string();
     }
 }
+
+#[test]
+fn test_part1() {
+    let mut day = DayX::create("input/dayX_example.txt".to_string());
+    assert_eq!("4361", day.solve_part1());
+}
+
+#[test]
+fn test_part2() {
+    let mut day = DayX::create("input/dayX_example.txt".to_string());
+    assert_eq!("467835", day.solve_part2());
+}