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30 lines
821 B
30 lines
821 B
import pytest
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from pandas._libs.tslibs import offsets
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from pandas.tseries.frequencies import (
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is_subperiod,
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is_superperiod,
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)
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@pytest.mark.parametrize(
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"p1,p2,expected",
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[
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# Input validation.
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(offsets.MonthEnd(), None, False),
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(offsets.YearEnd(), None, False),
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(None, offsets.YearEnd(), False),
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(None, offsets.MonthEnd(), False),
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(None, None, False),
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(offsets.YearEnd(), offsets.MonthEnd(), True),
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(offsets.Hour(), offsets.Minute(), True),
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(offsets.Second(), offsets.Milli(), True),
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(offsets.Milli(), offsets.Micro(), True),
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(offsets.Micro(), offsets.Nano(), True),
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],
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)
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def test_super_sub_symmetry(p1, p2, expected):
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assert is_superperiod(p1, p2) is expected
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assert is_subperiod(p2, p1) is expected
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