pybind11/tests/test_classh_wip.py

83 lines
2.6 KiB
Python

# -*- coding: utf-8 -*-
import pytest
from pybind11_tests import classh_wip as m
def test_mpty_constructors():
e = m.mpty()
assert e.__class__.__name__ == "mpty"
e = m.mpty("")
assert e.__class__.__name__ == "mpty"
e = m.mpty("txtm")
assert e.__class__.__name__ == "mpty"
def test_cast():
assert m.get_mtxt(m.rtrn_mpty_valu()) == "rtrn_valu"
assert m.get_mtxt(m.rtrn_mpty_rref()) == "rtrn_rref"
assert m.get_mtxt(m.rtrn_mpty_cref()) == "rtrn_cref"
assert m.get_mtxt(m.rtrn_mpty_mref()) == "rtrn_mref"
assert m.get_mtxt(m.rtrn_mpty_cptr()) == "rtrn_cptr"
assert m.get_mtxt(m.rtrn_mpty_mptr()) == "rtrn_mptr"
def test_load():
assert m.pass_mpty_valu(m.mpty("Valu")) == "pass_valu:Valu"
assert m.pass_mpty_rref(m.mpty("Rref")) == "pass_rref:Rref"
assert m.pass_mpty_cref(m.mpty("Cref")) == "pass_cref:Cref"
assert m.pass_mpty_mref(m.mpty("Mref")) == "pass_mref:Mref"
assert m.pass_mpty_cptr(m.mpty("Cptr")) == "pass_cptr:Cptr"
assert m.pass_mpty_mptr(m.mpty("Mptr")) == "pass_mptr:Mptr"
def test_cast_shared_ptr():
assert m.get_mtxt(m.rtrn_mpty_shmp()) == "rtrn_shmp"
assert m.get_mtxt(m.rtrn_mpty_shcp()) == "rtrn_shcp"
def test_load_shared_ptr():
assert m.pass_mpty_shmp(m.mpty("Shmp")) == "pass_shmp:Shmp"
assert m.pass_mpty_shcp(m.mpty("Shcp")) == "pass_shcp:Shcp"
def test_cast_unique_ptr():
assert m.get_mtxt(m.rtrn_mpty_uqmp()) == "rtrn_uqmp"
assert m.get_mtxt(m.rtrn_mpty_uqcp()) == "rtrn_uqcp"
def test_load_unique_ptr():
assert m.pass_mpty_uqmp(m.mpty("Uqmp")) == "pass_uqmp:Uqmp"
assert m.pass_mpty_uqcp(m.mpty("Uqcp")) == "pass_uqcp:Uqcp"
@pytest.mark.parametrize(
"pass_mpty, argm, rtrn",
[
(m.pass_mpty_uqmp, "Uqmp", "pass_uqmp:Uqmp"),
(m.pass_mpty_uqcp, "Uqcp", "pass_uqcp:Uqcp"),
],
)
def test_pass_unique_ptr_disowns(pass_mpty, argm, rtrn):
obj = m.mpty(argm)
assert pass_mpty(obj) == rtrn
with pytest.raises(RuntimeError) as exc_info:
m.pass_mpty_uqmp(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.mpty("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