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TST: add test for dtype argument in str.decode #61872

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Merged
merged 4 commits into from
Jul 28, 2025
Merged

TST: add test for dtype argument in str.decode #61872

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b2c70c0
add test for dtype argument in str.decode
hippowm Jul 16, 2025
6e8fb65
use option_context
hippowm Jul 17, 2025
adc32b8
remove comment
hippowm Jul 17, 2025
cceb9da
Update pandas/tests/strings/test_strings.py
mroeschke Jul 28, 2025
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10 changes: 10 additions & 0 deletions pandas/tests/strings/test_strings.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@
Index,
MultiIndex,
Series,
set_option,
)
import pandas._testing as tm
from pandas.core.strings.accessor import StringMethods
Expand Down Expand Up @@ -778,3 +779,12 @@ def test_series_str_decode():
result = Series([b"x", b"y"]).str.decode(encoding="UTF-8", errors="strict")
expected = Series(["x", "y"], dtype="str")
tm.assert_series_equal(result, expected)


def test_decode_with_dtype_none():
# Ensure that future.infer_string is enabled
set_option("future.infer_string", True)
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Please use the option_context context manager

ser = Series([b"a", b"b", b"c"]) # Use byte strings
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Suggested change
ser = Series([b"a", b"b", b"c"]) # Use byte strings
ser = Series([b"a", b"b", b"c"])

result = ser.str.decode("utf-8", dtype=None)
expected = Series(["a", "b", "c"], dtype="str")
tm.assert_series_equal(result, expected)