Restructure tests

2024/tests/__init__.py

@@ -0,0 +1,8 @@
+import os
+
+
+def get_data(day: int, sub: int | None = None) -> str:
+    basename = f"{day:02d}" if sub is None else f"{day:02d}.{sub}"
+    sample = os.path.dirname(__file__) + f"/samples/{basename}.txt"
+    with open(sample, mode="rt", encoding="utf-8") as f:
+        return f.read()