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TST: Use external_error_raised for numpy-raised test_error_invalid_values #61518

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May 30, 2025
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TST: Use external_error_raised for numpy-raised test_error_invalid_values #61518

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39 changes: 4 additions & 35 deletions pandas/tests/arrays/integer/test_arithmetic.py
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Original file line number Diff line number Diff line change
Expand Up @@ -178,25 +178,9 @@ def test_error_invalid_values(data, all_arithmetic_operators):
ops = getattr(s, op)

# invalid scalars
msg = "|".join(
[
r"can only perform ops with numeric values",
r"IntegerArray cannot perform the operation mod",
r"unsupported operand type",
r"can only concatenate str \(not \"int\"\) to str",
"not all arguments converted during string",
"ufunc '.*' not supported for the input types, and the inputs could not",
"ufunc '.*' did not contain a loop with signature matching types",
"Addition/subtraction of integers and integer-arrays with Timestamp",
"has no kernel",
"not implemented",
"The 'out' kwarg is necessary. Use numpy.strings.multiply without it.",
"not supported for dtype",
]
)
with pytest.raises(TypeError, match=msg):
with tm.external_error_raised(TypeError):
ops("foo")
with pytest.raises(TypeError, match=msg):
with tm.external_error_raised(TypeError):
ops(pd.Timestamp("20180101"))

# invalid array-likes
Expand All @@ -214,25 +198,10 @@ def test_error_invalid_values(data, all_arithmetic_operators):
# more-correct than np.nan here.
tm.assert_series_equal(res, expected)
else:
with pytest.raises(TypeError, match=msg):
with tm.external_error_raised(TypeError):
ops(str_ser)

msg = "|".join(
[
"can only perform ops with numeric values",
"cannot perform .* with this index type: DatetimeArray",
"Addition/subtraction of integers and integer-arrays "
"with DatetimeArray is no longer supported. *",
"unsupported operand type",
r"can only concatenate str \(not \"int\"\) to str",
"not all arguments converted during string",
"cannot subtract DatetimeArray from ndarray",
"has no kernel",
"not implemented",
"not supported for dtype",
]
)
with pytest.raises(TypeError, match=msg):
with tm.external_error_raised(TypeError):
ops(pd.Series(pd.date_range("20180101", periods=len(s))))


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