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TST: added test for ea dtypes conversion to datetimetzdtype (GH37553) #43270

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Merged
merged 2 commits into from
Aug 31, 2021
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TST: added test for ea dtypes conversion to datetimetzdtype (GH37553) #43270

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TST: added test for ea dtypes conversion to datetimetzdtype
lorenzophys Aug 28, 2021
3391499
TST: code review, moved test in the right location, changed assert me…
lorenzophys Aug 28, 2021
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33 changes: 33 additions & 0 deletions pandas/tests/series/methods/test_astype.py
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@
NA,
Categorical,
CategoricalDtype,
DatetimeTZDtype,
Index,
Interval,
NaT,
Expand Down Expand Up @@ -363,6 +364,38 @@ def test_astype_nan_to_bool(self):
expected = Series(True, dtype="bool")
tm.assert_series_equal(result, expected)

@pytest.mark.parametrize(
"dtype",
tm.ALL_INT_EA_DTYPES + tm.FLOAT_EA_DTYPES,
)
def test_astype_ea_to_datetimetzdtype(self, dtype):
# GH37553
result = Series([4, 0, 9], dtype=dtype).astype(DatetimeTZDtype(tz="US/Pacific"))
expected = Series(
{
0: Timestamp("1969-12-31 16:00:00.000000004-08:00", tz="US/Pacific"),
1: Timestamp("1969-12-31 16:00:00.000000000-08:00", tz="US/Pacific"),
2: Timestamp("1969-12-31 16:00:00.000000009-08:00", tz="US/Pacific"),
}
)

if dtype in tm.FLOAT_EA_DTYPES:
expected = Series(
{
0: Timestamp(
"1970-01-01 00:00:00.000000004-08:00", tz="US/Pacific"
),
1: Timestamp(
"1970-01-01 00:00:00.000000000-08:00", tz="US/Pacific"
),
2: Timestamp(
"1970-01-01 00:00:00.000000009-08:00", tz="US/Pacific"
),
}
)

tm.assert_series_equal(result, expected)


class TestAstypeString:
@pytest.mark.parametrize(
Expand Down