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import pytest
import pandas as pd
import pandas._testing as tm
class TestDatetimeIndexFillNA:
@pytest.mark.parametrize("tz", ["US/Eastern", "Asia/Tokyo"])
def test_fillna_datetime64(self, tz):
# GH 11343
idx = pd.DatetimeIndex(["2011-01-01 09:00", pd.NaT, "2011-01-01 11:00"])
exp = pd.DatetimeIndex(
["2011-01-01 09:00", "2011-01-01 10:00", "2011-01-01 11:00"]
)
tm.assert_index_equal(idx.fillna(pd.Timestamp("2011-01-01 10:00")), exp)
# tz mismatch
exp = pd.Index(
[
pd.Timestamp("2011-01-01 09:00"),
pd.Timestamp("2011-01-01 10:00", tz=tz),
pd.Timestamp("2011-01-01 11:00"),
],
dtype=object,
)
tm.assert_index_equal(idx.fillna(pd.Timestamp("2011-01-01 10:00", tz=tz)), exp)
# object
exp = pd.Index(
[pd.Timestamp("2011-01-01 09:00"), "x", pd.Timestamp("2011-01-01 11:00")],
dtype=object,
)
tm.assert_index_equal(idx.fillna("x"), exp)
idx = pd.DatetimeIndex(["2011-01-01 09:00", pd.NaT, "2011-01-01 11:00"], tz=tz)
exp = pd.DatetimeIndex(
["2011-01-01 09:00", "2011-01-01 10:00", "2011-01-01 11:00"], tz=tz
)
tm.assert_index_equal(idx.fillna(pd.Timestamp("2011-01-01 10:00", tz=tz)), exp)
exp = pd.Index(
[
pd.Timestamp("2011-01-01 09:00", tz=tz),
pd.Timestamp("2011-01-01 10:00"),
pd.Timestamp("2011-01-01 11:00", tz=tz),
],
dtype=object,
)
tm.assert_index_equal(idx.fillna(pd.Timestamp("2011-01-01 10:00")), exp)
# object
exp = pd.Index(
[
pd.Timestamp("2011-01-01 09:00", tz=tz),
"x",
pd.Timestamp("2011-01-01 11:00", tz=tz),
],
dtype=object,
)
tm.assert_index_equal(idx.fillna("x"), exp)