Add python script

day2/test_day2.py

@@ -0,0 +1,32 @@
+import os
+import unittest
+
+from day2 import aoc_2024_day2
+
+
+class TestDay2(unittest.TestCase):
+    def _count_safe_from_file(self, path):
+        with open(path, "r", encoding="utf-8") as f:
+            reports = aoc_2024_day2.parse_reports(f)
+        return aoc_2024_day2.count_safe(reports)
+
+    def _case_path(self, filename):
+        here = os.path.dirname(__file__)
+        return os.path.join(here, "test_cases", filename)
+
+    def test_sample(self):
+        self.assertEqual(self._count_safe_from_file(self._case_path("sample.txt")), 2)
+
+    def test_all_safe(self):
+        self.assertEqual(self._count_safe_from_file(self._case_path("all_safe.txt")), 4)
+
+    def test_all_unsafe(self):
+        self.assertEqual(self._count_safe_from_file(self._case_path("all_unsafe.txt")), 0)
+
+    def test_edge_cases(self):
+        self.assertEqual(self._count_safe_from_file(self._case_path("edge_cases.txt")), 3)
+
+
+if __name__ == "__main__":
+    unittest.main()
+