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Current File : //backups/router/usr/local/lib/python3.11/site-packages/pandas/tests/tslibs/test_resolution.py

import numpy as np
import pytz

from pandas._libs.tslibs import (
    Resolution,
    get_resolution,
)
from pandas._libs.tslibs.dtypes import NpyDatetimeUnit


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

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