add path kwarg to memory test fixture

Author: d-v-b

tests/v3/test_store/test_memory.py

@@ -22,7 +22,7 @@ def get(self, store: MemoryStore, key: str) -> Buffer:
     def store_kwargs(
         self, request: pytest.FixtureRequest
     ) -> dict[str, str | None | dict[str, Buffer]]:
-        kwargs = {"store_dict": None, "mode": "r+"}
+        kwargs = {"store_dict": None, "mode": "r+", "path": ""}
         if request.param is True:
             kwargs["store_dict"] = {}
         return kwargs