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TST: Add test for feather I/O with historical out-of-bounds datetime values #60209

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Merged
merged 2 commits into from
Nov 7, 2024
Merged

TST: Add test for feather I/O with historical out-of-bounds datetime values #60209

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14dc724
TST: load a datetime saved as feather
Nov 6, 2024
c72c1d2
Merge branch 'main' into test-out-of-bounds-datetime-to-feather
mroeschke Nov 6, 2024
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13 changes: 13 additions & 0 deletions pandas/tests/io/test_feather.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
"""test feather-format compat"""

from datetime import datetime
import zoneinfo

import numpy as np
Expand Down Expand Up @@ -247,3 +248,15 @@ def test_string_inference(self, tmp_path):
data={"a": ["x", "y"]}, dtype=pd.StringDtype(na_value=np.nan)
)
tm.assert_frame_equal(result, expected)

def test_out_of_bounds_datetime_to_feather(self):
# GH#47832
df = pd.DataFrame(
{
"date": [
datetime.fromisoformat("1654-01-01"),
datetime.fromisoformat("1920-01-01"),
],
}
)
self.check_round_trip(df)