gh-108303: Add Lib/test/test_cppext/ sub-directory (#108325)
* Move test_cppext to its own directory
* Rename setup_testcppext.py to setup.py
* Rename _testcppext.cpp to extension.cpp
* The source (extension.cpp) is now also copied by the test.
(cherry picked from commit 21dda09600)
This is a quick-and-dirty way to run the C++ tests.
It can definitely be improved in the future, but it should fail when things go wrong.
- Run test functions on import (yes, this can definitely be improved)
- Fudge setuptools metadata (name & version) to make the extension installable
- Install and import the extension in test_cppext
(cherry picked from commit ec5db539b9)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Don't build _testcppext.cpp with -Wzero-as-null-pointer-constant when
testing C++03: only use this compiler flag with C++11.
(cherry picked from commit a38c2a61d5)
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Victor Stinner <vstinner@python.org>
* Fix the compatibility of the Python C API with C++ older than C++11.
* _Py_NULL is only defined as nullptr on C++11 and newer.
(cherry picked from commit 4caf5c2753)
* test_cppext now builds the C++ extension with setuptools.
* Add @test.support.requires_venv_with_pip.
(cherry picked from commit ca0cc9c433)
