24 lines
602 B
Python
24 lines
602 B
Python
import pytest
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from numpy import array_api as xp
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@pytest.mark.parametrize(
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"obj, axis, expected",
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[
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([0, 0], -1, [0, 1]),
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([0, 1, 0], -1, [1, 0, 2]),
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([[0, 1], [1, 1]], 0, [[1, 0], [0, 1]]),
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([[0, 1], [1, 1]], 1, [[1, 0], [0, 1]]),
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],
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)
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def test_stable_desc_argsort(obj, axis, expected):
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"""
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Indices respect relative order of a descending stable-sort
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See https://github.com/numpy/numpy/issues/20778
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"""
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x = xp.asarray(obj)
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out = xp.argsort(x, axis=axis, stable=True, descending=True)
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assert xp.all(out == xp.asarray(expected))
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