pybind11/tests/test_class_sh_trampoline_basic.py
Ralf W. Grosse-Kunstleve bd8985aa0f
[smart_holder] Introduce PYBIND11_SMART_HOLDER_DISABLE option. (#5348)
* Step 1: Establish new `PYBIND11_SMART_HOLDER_ENABLED` macro, but only under include/pybind11/

At the stage `PYBIND11_HAS_INTERNALS_WITH_SMART_HOLDER_SUPPORT` and `PYBIND11_SMART_HOLDER_ENABLED` are still equivalent.

* Systematically replace all `PYBIND11_HAS_INTERNALS_WITH_SMART_HOLDER_SUPPORT` with `PYBIND11_SMART_HOLDER_ENABLED` under tests/ and ubench/

As at the previous stage, `PYBIND11_HAS_INTERNALS_WITH_SMART_HOLDER_SUPPORT` and `PYBIND11_SMART_HOLDER_ENABLED` are still equivalent.

* Introduce `PYBIND11_SMART_HOLDER_DISABLE` option.

* `#ifdef` out entire `wrap()` function to avoid `unused-parameter` warning-as-error under macos-13

```
/Users/runner/work/pybind11/pybind11/tests/test_class_sh_trampoline_basic.cpp:67:23: error: unused parameter 'm' [-Werror,-Wunused-parameter]
void wrap(py::module_ m, const char *py_class_name) {
                      ^
/Users/runner/work/pybind11/pybind11/tests/test_class_sh_trampoline_basic.cpp:67:38: error: unused parameter 'py_class_name' [-Werror,-Wunused-parameter]
void wrap(py::module_ m, const char *py_class_name) {
                                     ^
2 errors generated.
```
2024-09-01 14:34:36 -07:00

63 lines
1.8 KiB
Python

from __future__ import annotations
import pytest
from pybind11_tests import class_sh_trampoline_basic as m
if not m.defined_PYBIND11_SMART_HOLDER_ENABLED:
pytest.skip("smart_holder not available.", allow_module_level=True)
class PyDrvd0(m.Abase0):
def __init__(self, val):
super().__init__(val)
def Add(self, other_val):
return self.Get() * 100 + other_val
class PyDrvd1(m.Abase1):
def __init__(self, val):
super().__init__(val)
def Add(self, other_val):
return self.Get() * 200 + other_val
def test_drvd0_add():
drvd = PyDrvd0(74)
assert drvd.Add(38) == (74 * 10 + 3) * 100 + 38
def test_drvd0_add_in_cpp_raw_ptr():
drvd = PyDrvd0(52)
assert m.AddInCppRawPtr(drvd, 27) == ((52 * 10 + 3) * 100 + 27) * 10 + 7
def test_drvd0_add_in_cpp_shared_ptr():
while True:
drvd = PyDrvd0(36)
assert m.AddInCppSharedPtr(drvd, 56) == ((36 * 10 + 3) * 100 + 56) * 100 + 11
return # Comment out for manual leak checking (use `top` command).
def test_drvd0_add_in_cpp_unique_ptr():
while True:
drvd = PyDrvd0(0)
with pytest.raises(ValueError) as exc_info:
m.AddInCppUniquePtr(drvd, 0)
assert (
str(exc_info.value)
== "Alias class (also known as trampoline) does not inherit from"
" py::trampoline_self_life_support, therefore the ownership of this"
" instance cannot safely be transferred to C++."
)
return # Comment out for manual leak checking (use `top` command).
def test_drvd1_add_in_cpp_unique_ptr():
while True:
drvd = PyDrvd1(25)
assert m.AddInCppUniquePtr(drvd, 83) == ((25 * 10 + 3) * 200 + 83) * 100 + 13
return # Comment out for manual leak checking (use `top` command).