fix: test to check that we can write via xrootd (#1380)

* add test to check that we can write via xrootd

* add append test to write via xrootd

* set minimum version of fsspec-xrootd to 0.5.0

* style: pre-commit fixes

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Ianna Osborne <[email protected]>

pyproject.toml

@@ -70,7 +70,7 @@ test = [
   "deflate",
   "minio",
   "aiohttp",
-  "fsspec-xrootd",
+  "fsspec-xrootd>=0.5.0",
   "s3fs",
   "paramiko",
   "pytest>=6",
@@ -86,7 +86,7 @@ test-pyodide = [
   "pytest-timeout",
   "scikit-hep-testdata"
 ]
-xrootd = ["fsspec-xrootd"]
+xrootd = ["fsspec-xrootd>=0.5.0"]
 
 [project.urls]
 Download = "https://github.com/scikit-hep/uproot5/releases"

tests/test_0692_fsspec_writing.py

@@ -9,6 +9,7 @@
 import pathlib
 import fsspec
 import numpy as np
+import awkward as ak
 
 is_windows = sys.platform.startswith("win")
 
@@ -218,3 +219,22 @@ def test_fsspec_writing_memory(tmp_path, scheme):
 
     with uproot.open(uri) as f:
         assert f["tree"]["x"].array().tolist() == [1, 2, 3]
+
+
+def test_write_append_fsspec_xrootd(xrootd_server):
+    remote_path, _ = xrootd_server
+    filename = "file.root"
+    remote_file_path = os.path.join(remote_path, filename)
+    array = ak.Array({"x": [1, 2, 3], "y": [4, 5, 6]})
+    file = uproot.recreate(remote_file_path)
+    file["tree"] = array
+    file.close()
+    array2 = ak.Array({"x": [1, 2, 3, 4], "y": [4, 5, 6, 7]})
+    file = uproot.update(remote_file_path)
+    file["other_tree"] = array2
+    file.close()
+    with uproot.open(remote_file_path) as f:
+        assert f["tree"]["x"].array().tolist() == [1, 2, 3]
+        assert f["tree"]["y"].array().tolist() == [4, 5, 6]
+        assert f["other_tree"]["x"].array().tolist() == [1, 2, 3, 4]
+        assert f["other_tree"]["y"].array().tolist() == [4, 5, 6, 7]