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# BSD 3-Clause License; see https://github.com/scikit-hep/awkward/blob/main/LICENSE
from __future__ import annotations
import numpy as np # noqa: F401
import pytest # noqa: F401
import awkward as ak
def test():
array = ak.Array([[0, 1, 2, 3], [3, 3, 3, 2, 1]])
is_valid = array != 3
assert ak.operations.mask(array, is_valid).to_list() == [
[0, 1, 2, None],
[None, None, None, 2, 1],
]
assert ak.operations.sort(ak.operations.mask(array, is_valid)).to_list() == [
[0, 1, 2, None],
[1, 2, None, None, None],
]
assert ak.operations.argsort(ak.operations.mask(array, is_valid)).to_list() == [
[0, 1, 2, 3],
[4, 3, 0, 1, 2],
]
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