Copilot commented on code in PR #51247:
URL: https://github.com/apache/arrow/pull/51247#discussion_r4528739544
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python/pyarrow/tests/test_compute.py:
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@@ -243,6 +243,31 @@ def test_list_functions():
assert "add" in pc.list_functions()
+def test_call_tabular_function_rejects_invalid_registry():
+ with pytest.raises(TypeError,
+ match="func_registry must be a FunctionRegistry"):
+ pc.call_tabular_function("", None, 1)
Review Comment:
This test currently exercises the invalid-registry path indirectly by
passing `args=None`. That means it may fail earlier (or for a different reason)
if `call_tabular_function` changes its `args` handling. To make the test more
robust and focused on registry validation, pass a minimal valid `args` value
(e.g., an empty list/tuple) so the failure is attributable to `func_registry`
type checking.
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