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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
|
|
