pybind11/tests/test_classh_wip.py

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# -*- coding: utf-8 -*-
import pytest
from pybind11_tests import classh_wip as m
def test_atyp_constructors():
e = m.atyp()
assert e.__class__.__name__ == "atyp"
e = m.atyp("")
assert e.__class__.__name__ == "atyp"
e = m.atyp("txtm")
assert e.__class__.__name__ == "atyp"
def test_cast():
assert m.get_mtxt(m.rtrn_valu_atyp()) == "rtrn_valu"
assert m.get_mtxt(m.rtrn_rref_atyp()) == "rtrn_rref"
assert m.get_mtxt(m.rtrn_cref_atyp()) == "rtrn_cref"
assert m.get_mtxt(m.rtrn_mref_atyp()) == "rtrn_mref"
assert m.get_mtxt(m.rtrn_cptr_atyp()) == "rtrn_cptr"
assert m.get_mtxt(m.rtrn_mptr_atyp()) == "rtrn_mptr"
def test_load():
assert m.pass_valu_atyp(m.atyp("Valu")) == "pass_valu:Valu"
assert m.pass_rref_atyp(m.atyp("Rref")) == "pass_rref:Rref"
assert m.pass_cref_atyp(m.atyp("Cref")) == "pass_cref:Cref"
assert m.pass_mref_atyp(m.atyp("Mref")) == "pass_mref:Mref"
assert m.pass_cptr_atyp(m.atyp("Cptr")) == "pass_cptr:Cptr"
assert m.pass_mptr_atyp(m.atyp("Mptr")) == "pass_mptr:Mptr"
def test_cast_shared_ptr():
assert m.get_mtxt(m.rtrn_shmp_atyp()) == "rtrn_shmp"
assert m.get_mtxt(m.rtrn_shcp_atyp()) == "rtrn_shcp"
def test_load_shared_ptr():
assert m.pass_shmp_atyp(m.atyp("Shmp")) == "pass_shmp:Shmp"
assert m.pass_shcp_atyp(m.atyp("Shcp")) == "pass_shcp:Shcp"
def test_cast_unique_ptr():
assert m.get_mtxt(m.rtrn_uqmp_atyp()) == "rtrn_uqmp"
assert m.get_mtxt(m.rtrn_uqcp_atyp()) == "rtrn_uqcp"
def test_load_unique_ptr():
assert m.pass_uqmp_atyp(m.atyp("Uqmp")) == "pass_uqmp:Uqmp"
assert m.pass_uqcp_atyp(m.atyp("Uqcp")) == "pass_uqcp:Uqcp"
@pytest.mark.parametrize(
"pass_atyp, argm, rtrn",
[
(m.pass_uqmp_atyp, "Uqmp", "pass_uqmp:Uqmp"),
(m.pass_uqcp_atyp, "Uqcp", "pass_uqcp:Uqcp"),
],
)
def test_pass_unique_ptr_disowns(pass_atyp, argm, rtrn):
obj = m.atyp(argm)
assert pass_atyp(obj) == rtrn
with pytest.raises(RuntimeError) as exc_info:
m.pass_uqmp_atyp(obj)
assert str(exc_info.value) == (
"Missing value for wrapped C++ type:"
" Python instance is uninitialized or was disowned."
)
def test_unique_ptr_roundtrip(num_round_trips=1000):
# Multiple roundtrips to stress-test instance registration/deregistration.
recycled = m.atyp("passenger")
for _ in range(num_round_trips):
id_orig = id(recycled)
recycled = m.unique_ptr_roundtrip(recycled)
assert m.get_mtxt(recycled) == "passenger"
id_rtrn = id(recycled)
# Ensure the returned object is a different Python instance.
assert id_rtrn != id_orig
id_orig = id_rtrn