)]}'
{
  "commit": "863694202aef47863bbdef35816d3c0e8f3066b9",
  "tree": "2c290b6f6c64a8c6131bda676e0e297948179f5d",
  "parents": [
    "35309c5336dbf08781212623d2ce05e7a1ba86f9"
  ],
  "author": {
    "name": "Spenser Sun",
    "email": "haotian.sun@databricks.com",
    "time": "Tue Jul 28 14:00:00 2026 +0800"
  },
  "committer": {
    "name": "Ruifeng Zheng",
    "email": "ruifengz@apache.org",
    "time": "Tue Jul 28 14:00:00 2026 +0800"
  },
  "message": "[SPARK-58332][PYTHON][TEST] Move compare_or_generate_golden_matrix into GoldenFileTestMixin\n\n### What changes were proposed in this pull request?\n\n`compare_or_generate_golden_matrix` was duplicated verbatim across three PyArrow golden-file test files:\n\n- `python/pyspark/tests/upstream/pyarrow/test_pyarrow_array_cast.py`\n- `python/pyspark/tests/upstream/pyarrow/test_pyarrow_arrow_to_pandas_default.py`\n- `python/pyspark/tests/upstream/pyarrow/test_pyarrow_arrow_to_pandas_non_default.py`\n\nThis PR moves it into `GoldenFileTestMixin` (`python/pyspark/testing/goldenutils.py`), which all three suites already inherit, and removes the local copies. Imports that became unused after the removal (`inspect`, `os`, `typing.Callable/List/Optional`) are dropped from the test files.\n\nThis is a follow-up to #57435, where reviewers asked to centralize the duplicated matrix driver into the mixin.\n\n### Why are the changes needed?\n\nRemoves duplicated test machinery so the golden-file matrix driver has a single implementation, making it easier to maintain and reuse for future golden-file suites.\n\n### Does this PR introduce _any_ user-facing change?\n\nNo. Test-only, behavior-preserving refactor.\n\n### How was this patch tested?\n\nExisting suites pass in compare mode (no golden files regenerated):\n\n```\npython -m pytest \\\n  python/pyspark/tests/upstream/pyarrow/test_pyarrow_array_cast.py \\\n  python/pyspark/tests/upstream/pyarrow/test_pyarrow_arrow_to_pandas_default.py \\\n  python/pyspark/tests/upstream/pyarrow/test_pyarrow_arrow_to_pandas_non_default.py\n```\n\n### Was this patch authored or co-authored using generative AI tooling?\n\nGenerated-by: Claude Code (Opus 4.8)\n\nCloses #57510 from Spenserrrr/centralize-golden-matrix-helper.\n\nAuthored-by: Spenser Sun \u003chaotian.sun@databricks.com\u003e\nSigned-off-by: Ruifeng Zheng \u003cruifengz@apache.org\u003e\n",
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