add tests

tests/test_utils.py

@@ -0,0 +1,24 @@
+from __future__ import annotations
+
+import unittest
+
+from openlane_scraper.core.utils import deep_find_key
+
+
+class TestDeepFindKey(unittest.TestCase):
+    def test_finds_nested_and_respects_depth(self) -> None:
+        payload = {
+            "root": {
+                "target": "a",
+                "nested": [{"target": "b"}, {"x": 1}],
+            }
+        }
+        self.assertEqual(deep_find_key(payload, {"target"}), ["a", "b"])
+
+        deep_payload = {"l1": {"l2": {"l3": {"target": "value"}}}}
+        self.assertEqual(deep_find_key(deep_payload, {"target"}, max_depth=2), [])
+        self.assertEqual(deep_find_key(deep_payload, {"target"}, max_depth=8), ["value"])
+
+
+if __name__ == "__main__":
+    unittest.main()