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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
import pytest
import awkward as ak
from awkward._nplikes.array_like import MaterializableArray
from awkward._nplikes.numpy import Numpy
from awkward._nplikes.placeholder import PlaceholderArray
from awkward._nplikes.virtual import VirtualNDArray
def test():
numpy = Numpy.instance()
a = ak.contents.NumpyArray(np.arange(10, dtype=np.float32))
b = ak.contents.NumpyArray(PlaceholderArray(numpy, (10,), np.float32))
layout = ak.contents.RecordArray([a, b], None, 5)
layout.materialize(VirtualNDArray)
layout.to_packed()
with pytest.raises(RuntimeError, match="should never have been encountered"):
layout.materialize(MaterializableArray)
a = ak.contents.NumpyArray(
VirtualNDArray(
numpy, (10,), np.float32, lambda: np.arange(10, dtype=np.float32)
)
)
b = ak.contents.NumpyArray(PlaceholderArray(Numpy.instance(), (10,), np.float32))
layout = ak.contents.RecordArray([a, b], None, 5)
layout.materialize(VirtualNDArray)
layout.to_packed()
with pytest.raises(RuntimeError, match="should never have been encountered"):
layout.materialize(MaterializableArray)
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