diff --git a/aoc/input_file.py b/aoc/input_file.py
index 055a20e..2af6097 100644
--- a/aoc/input_file.py
+++ b/aoc/input_file.py
@@ -92,20 +92,19 @@ from typing import Any
 
 
 def part_1(input_data: str) -> Any:
-    # your part 1 solution here
     return None
 
 
 def part_2(input_data: str) -> Any:
-    # your part 2 solution here
     return None
 
 
-# alternatively you can implement a "two in one solution" like this
-# part_1 and part_2 must be removed or commented out in this case
-# if tuple or list is returned elements will be printed on separate lines
-# def part_1_2(input_data) -> Any:
-#     return None
+def test_part_1(example_data)
+    assert part_1(example_data) == 0
+
+
+def test_part_2(example_data)
+    assert part_2(example_data) == 0
 """