Skip to content

TST: Add regression test for DatetimeIndex.union across DST boundary (#62915) #63223

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
mroeschke merged 1 commit into from
Dec 1, 2025
Merged

TST: Add regression test for DatetimeIndex.union across DST boundary (#62915) #63223

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 10 additions & 0 deletions pandas/tests/indexes/datetimes/test_setops.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -757,3 +757,13 @@ def test_intersection_non_nano_rangelike():
freq="D",
)
tm.assert_index_equal(result, expected)


def test_union_across_dst_boundary():
# GH#62915 union should work when one index ends at DST boundary
# and the other extends past it
index1 = date_range("2025-10-25", "2025-10-26", freq="D", tz="Europe/Helsinki")
index2 = date_range("2025-10-25", "2025-10-28", freq="D", tz="Europe/Helsinki")
result = index1.union(index2)
expected = date_range("2025-10-25", "2025-10-28", freq="D", tz="Europe/Helsinki")
tm.assert_index_equal(result, expected)
Loading