craftbeerpi4-pione/venv/lib/python3.8/site-packages/pandas/tests/tslibs/test_timedeltas.py

36 lines
960 B
Python

import numpy as np
import pytest
from pandas._libs.tslibs.timedeltas import delta_to_nanoseconds
from pandas import Timedelta, offsets
@pytest.mark.parametrize(
"obj,expected",
[
(np.timedelta64(14, "D"), 14 * 24 * 3600 * 1e9),
(Timedelta(minutes=-7), -7 * 60 * 1e9),
(Timedelta(minutes=-7).to_pytimedelta(), -7 * 60 * 1e9),
(offsets.Nano(125), 125),
(1, 1),
(np.int64(2), 2),
(np.int32(3), 3),
],
)
def test_delta_to_nanoseconds(obj, expected):
result = delta_to_nanoseconds(obj)
assert result == expected
def test_delta_to_nanoseconds_error():
obj = np.array([123456789], dtype="m8[ns]")
with pytest.raises(TypeError, match="<class 'numpy.ndarray'>"):
delta_to_nanoseconds(obj)
def test_huge_nanoseconds_overflow():
# GH 32402
assert delta_to_nanoseconds(Timedelta(1e10)) == 1e10
assert delta_to_nanoseconds(Timedelta(nanoseconds=1e10)) == 1e10