Move imports, skip tests on old fsspec and add changes note

Author: martindurant

changes/2533.bigfix.rst

@@ -0,0 +1 @@
+Wrap sync fsspec filesystems with AsyncFileSystemWrapper in xarray.to_zarr

tests/test_store/test_fsspec.py

@@ -6,7 +6,7 @@
 
 import pytest
 from botocore.session import Session
-from fsspec.implementations.asyn_wrapper import AsyncFileSystemWrapper
+from packaging.version import parse as parse_version
 
 import zarr.api.asynchronous
 from zarr.abc.store import OffsetByteRequest
@@ -218,16 +218,28 @@ async def test_empty_nonexistent_path(self, store_kwargs) -> None:
         assert await store.is_empty("")
 
 
+@pytest.mark.skipif(
+    parse_version(fsspec.__version__) < parse_version("2024.12.0"),
+    reason="No AsyncFileSystemWrapper",
+)
 def test_wrap_sync_filesystem():
     """The local fs is not async so we should expect it to be wrapped automatically"""
+    from fsspec.implementations.asyn_wrapper import AsyncFileSystemWrapper
+
     store = FsspecStore.from_url("local://test/path")
 
     assert isinstance(store.fs, AsyncFileSystemWrapper)
     assert store.fs.async_impl
 
 
+@pytest.mark.skipif(
+    parse_version(fsspec.__version__) < parse_version("2024.12.0"),
+    reason="No AsyncFileSystemWrapper",
+)
 def test_no_wrap_async_filesystem():
     """An async fs should not be wrapped automatically; fsspec's https filesystem is such an fs"""
+    from fsspec.implementations.asyn_wrapper import AsyncFileSystemWrapper
+
     store = FsspecStore.from_url("https://test/path")
 
     assert not isinstance(store.fs, AsyncFileSystemWrapper)