105 lines
2.8 KiB
Python
105 lines
2.8 KiB
Python
import pytest
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from pandas._libs.tslibs.frequencies import (
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INVALID_FREQ_ERR_MSG,
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_period_str_to_code,
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get_rule_month,
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is_subperiod,
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is_superperiod,
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)
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from pandas.tseries import offsets
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@pytest.mark.parametrize(
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"obj,expected",
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[
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("W", "DEC"),
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(offsets.Week(), "DEC"),
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("D", "DEC"),
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(offsets.Day(), "DEC"),
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("Q", "DEC"),
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(offsets.QuarterEnd(startingMonth=12), "DEC"),
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("Q-JAN", "JAN"),
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(offsets.QuarterEnd(startingMonth=1), "JAN"),
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("A-DEC", "DEC"),
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("Y-DEC", "DEC"),
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(offsets.YearEnd(), "DEC"),
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("A-MAY", "MAY"),
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("Y-MAY", "MAY"),
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(offsets.YearEnd(month=5), "MAY"),
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],
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)
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def test_get_rule_month(obj, expected):
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result = get_rule_month(obj)
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assert result == expected
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@pytest.mark.parametrize(
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"obj,expected",
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[
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("A", 1000),
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("A-DEC", 1000),
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("A-JAN", 1001),
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("Y", 1000),
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("Y-DEC", 1000),
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("Y-JAN", 1001),
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("Q", 2000),
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("Q-DEC", 2000),
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("Q-FEB", 2002),
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("W", 4000),
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("W-SUN", 4000),
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("W-FRI", 4005),
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("Min", 8000),
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("ms", 10000),
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("US", 11000),
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("NS", 12000),
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],
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)
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def test_period_str_to_code(obj, expected):
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assert _period_str_to_code(obj) == expected
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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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@pytest.mark.parametrize(
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"freq,expected,aliases",
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[
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("D", 6000, ["DAY", "DLY", "DAILY"]),
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("M", 3000, ["MTH", "MONTH", "MONTHLY"]),
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("N", 12000, ["NANOSECOND", "NANOSECONDLY"]),
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("H", 7000, ["HR", "HOUR", "HRLY", "HOURLY"]),
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("T", 8000, ["minute", "MINUTE", "MINUTELY"]),
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("L", 10000, ["MILLISECOND", "MILLISECONDLY"]),
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("U", 11000, ["MICROSECOND", "MICROSECONDLY"]),
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("S", 9000, ["sec", "SEC", "SECOND", "SECONDLY"]),
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("B", 5000, ["BUS", "BUSINESS", "BUSINESSLY", "WEEKDAY"]),
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],
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)
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def test_assert_aliases_deprecated(freq, expected, aliases):
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assert isinstance(aliases, list)
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assert _period_str_to_code(freq) == expected
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for alias in aliases:
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with pytest.raises(ValueError, match=INVALID_FREQ_ERR_MSG):
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_period_str_to_code(alias)
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