raulcd commented on code in PR #46354:
URL: https://github.com/apache/arrow/pull/46354#discussion_r2081846780
##########
python/pyarrow/tests/test_ipc.py:
##########
@@ -1304,3 +1304,29 @@ def test_record_batch_reader_cast_nulls():
casted_reader = reader.cast(schema_dst)
with pytest.raises(pa.lib.ArrowInvalid, match="Can't cast array"):
casted_reader.read_all()
+
+
+def test_record_batch_file_writer_with_metadata():
+ # https://github.com/apache/arrow/issues/46222
+ tbl = pa.table({"a": [1, 2, 3]})
+ meta = {b"creator": b"test", b"version": b"0.1.0"}
+ sink = pa.BufferOutputStream()
+
+ with pa.ipc.new_file(sink, tbl.schema, metadata=meta) as w:
+ w.write_table(tbl)
+
+ buffer = sink.getvalue()
+ with pa.ipc.open_file(buffer) as r:
+ assert r.metadata == meta
+
Review Comment:
Could you add two empty lines to fix the linter failure?
```suggestion
```
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