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Ayxan
2022-05-23 00:16:32 +04:00
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import pytest
from pandas._libs.tslibs import offsets
from pandas.tseries.frequencies import (
is_subperiod,
is_superperiod,
)
@pytest.mark.parametrize(
"p1,p2,expected",
[
# Input validation.
(offsets.MonthEnd(), None, False),
(offsets.YearEnd(), None, False),
(None, offsets.YearEnd(), False),
(None, offsets.MonthEnd(), False),
(None, None, False),
(offsets.YearEnd(), offsets.MonthEnd(), True),
(offsets.Hour(), offsets.Minute(), True),
(offsets.Second(), offsets.Milli(), True),
(offsets.Milli(), offsets.Micro(), True),
(offsets.Micro(), offsets.Nano(), True),
],
)
def test_super_sub_symmetry(p1, p2, expected):
assert is_superperiod(p1, p2) is expected
assert is_subperiod(p2, p1) is expected