Fix LocalStore test

Author: dcherian

src/zarr/storage/_local.py

@@ -208,6 +208,13 @@ async def delete(self, key: str) -> None:
         else:
             await asyncio.to_thread(path.unlink, True)  # Q: we may want to raise if path is missing
 
+    async def delete_dir(self, prefix: str) -> None:
+        # docstring inherited
+        self._check_writable()
+        path = self.root / prefix
+        if path.is_dir():
+            shutil.rmtree(path)
+
     async def exists(self, key: str) -> bool:
         # docstring inherited
         path = self.root / key

tests/test_store/test_stateful.py

@@ -5,7 +5,7 @@
 )
 
 from zarr.abc.store import Store
-from zarr.storage import ZipStore
+from zarr.storage import LocalStore, ZipStore
 from zarr.testing.stateful import ZarrHierarchyStateMachine, ZarrStoreStateMachine
 
 pytestmark = pytest.mark.slow_hypothesis
@@ -28,4 +28,6 @@ def mk_test_instance_sync() -> None:
     if isinstance(sync_store, ZipStore):
         pytest.skip(reason="ZipStore does not support delete")
 
+    if isinstance(sync_store, LocalStore):
+        pytest.skip(reason="Test isn't suitable for LocalStore.")
     run_state_machine_as_test(mk_test_instance_sync)