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TST: at: add test for device #180

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Mar 25, 2025
Merged

TST: at: add test for device #180

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15 changes: 14 additions & 1 deletion tests/test_at.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,8 @@
from array_api_extra._lib._at import _AtOp
from array_api_extra._lib._testing import xp_assert_equal
from array_api_extra._lib._utils._compat import array_namespace, is_writeable_array
from array_api_extra._lib._utils._typing import Array, SetIndex
from array_api_extra._lib._utils._compat import device as get_device
from array_api_extra._lib._utils._typing import Array, Device, SetIndex
from array_api_extra.testing import lazy_xp_function

pytestmark = [
Expand Down Expand Up @@ -327,3 +328,15 @@ def test_gh134(xp: ModuleType, bool_mask: bool, copy: bool | None):
idx = xp.asarray(True) if bool_mask else ()
z = at_op(y, idx, _AtOp.SET, 1, copy=copy)
xp_assert_equal(z, xp.asarray(1, dtype=x.dtype))


def test_device(xp: ModuleType, device: Device):
x = xp.asarray([1, 2, 3], device=device)

y = xp.asarray([4, 5], device=device)
z = at(x)[:2].set(y)
assert get_device(z) == get_device(x)

idx = xp.asarray([True, False, True], device=device)
z = at(x)[idx].set(4)
assert get_device(z) == get_device(x)