pybind11/tests/test_class_sh_unique_ptr_member.py

from __future__ import annotations

import pytest

from pybind11_tests import class_sh_unique_ptr_member as m

if not m.defined_PYBIND11_HAS_INTERNALS_WITH_SMART_HOLDER_SUPPORT:
    pytest.skip("smart_holder not available.", allow_module_level=True)


def test_make_unique_pointee():
    obj = m.make_unique_pointee()
    assert obj.get_int() == 213


@pytest.mark.parametrize(
    "give_up_ownership_via",
    ["give_up_ownership_via_unique_ptr", "give_up_ownership_via_shared_ptr"],
)
def test_pointee_and_ptr_owner(give_up_ownership_via):
    obj = m.pointee()
    assert obj.get_int() == 213
    owner = m.ptr_owner(obj)
    with pytest.raises(ValueError, match="Python instance was disowned"):
        obj.get_int()
    assert owner.is_owner()
    reclaimed = getattr(owner, give_up_ownership_via)()
    assert not owner.is_owner()
    assert reclaimed.get_int() == 213