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| import numpy as np
| import pytest
| import pytz
|
| from pandas._libs.tslibs import (
| Resolution,
| get_resolution,
| )
| from pandas._libs.tslibs.dtypes import NpyDatetimeUnit
|
| import pandas._testing as tm
|
|
| def test_get_resolution_nano():
| # don't return the fallback RESO_DAY
| arr = np.array([1], dtype=np.int64)
| res = get_resolution(arr)
| assert res == Resolution.RESO_NS
|
|
| def test_get_resolution_non_nano_data():
| arr = np.array([1], dtype=np.int64)
| res = get_resolution(arr, None, NpyDatetimeUnit.NPY_FR_us.value)
| assert res == Resolution.RESO_US
|
| res = get_resolution(arr, pytz.UTC, NpyDatetimeUnit.NPY_FR_us.value)
| assert res == Resolution.RESO_US
|
|
| @pytest.mark.parametrize(
| "freqstr,expected",
| [
| ("Y", "year"),
| ("Q", "quarter"),
| ("M", "month"),
| ("D", "day"),
| ("h", "hour"),
| ("min", "minute"),
| ("s", "second"),
| ("ms", "millisecond"),
| ("us", "microsecond"),
| ("ns", "nanosecond"),
| ],
| )
| def test_get_attrname_from_abbrev(freqstr, expected):
| reso = Resolution.get_reso_from_freqstr(freqstr)
| assert reso.attr_abbrev == freqstr
| assert reso.attrname == expected
|
|
| @pytest.mark.parametrize("freq", ["A", "H", "T", "S", "L", "U", "N"])
| def test_units_A_H_T_S_L_U_N_deprecated_from_attrname_to_abbrevs(freq):
| # GH#52536
| msg = f"'{freq}' is deprecated and will be removed in a future version."
|
| with tm.assert_produces_warning(FutureWarning, match=msg):
| Resolution.get_reso_from_freqstr(freq)
|
|
