* Improve C++ test infrastructure and disable hanging test
This commit improves the C++ test infrastructure to ensure test output
is visible in CI logs, and disables a test that hangs on free-threaded
Python 3.14+.
Changes:
## CI/test infrastructure improvements
- .github/workflows: Added `timeout-minutes: 3` to all C++ test steps
to prevent indefinite hangs.
- tests/**/CMakeLists.txt: Added `USES_TERMINAL` to C++ test targets
(cpptest, test_cross_module_rtti, test_pure_cpp) to ensure output is
shown immediately rather than buffered and possibly lost on crash/timeout.
- tests/test_with_catch/catch.cpp: Added a custom Catch2 progress reporter
with timestamps, Python version info, and a SIGTERM handler to make test
execution and failures clearly visible in CI logs.
## Disabled hanging test
- The "Move Subinterpreter" test is disabled on free-threaded Python 3.14+
due to a hang in Py_EndInterpreter() when the subinterpreter is destroyed
from a different thread than it was created on. Work on fixing the
underlying issue will continue under PR #5940.
Context: We were in the dark for months (since we started testing with
Python 3.14t) because CI logs gave no clue about the root cause of hangs.
This led to ignoring intermittent hangs (mostly on macOS). Our hand was
forced only with the Python 3.14.1 release, when hangs became predictable
on all platforms.
For the full development history of these changes, see PR #5933.
* Add test summary to progress reporter
Print the total number of test cases and assertions at the end of the
test run, making it easy to spot if tests are disabled or added.
Example output:
[ PASSED ] 20 test cases, 1589 assertions.
* Add PYBIND11_CATCH2_SKIP_IF macro to skip tests at runtime
Catch2 v2 doesn't have native skip support (v3 does with SKIP()).
This macro allows tests to be skipped with a visible message while
still appearing in the test list.
Use this for the Move Subinterpreter test on free-threaded Python 3.14+
so it shows as skipped rather than being conditionally compiled out.
Example output:
[ RUN ] Move Subinterpreter
[ SKIPPED ] Skipped on free-threaded Python 3.14+ (see PR #5940)
[ OK ] Move Subinterpreter
* Fix clang-tidy bugprone-macro-parentheses warning in PYBIND11_CATCH2_SKIP_IF
Occasionally a test will get stuck and run for 6 hours until Github cancels the workflow.
This reduces the timeout to 90 minutes to not waste resources.
Pybind11's tests seem to run in 30 minutes so this should be plenty of time.
* test: Added test case for visibility of common symbols across shared libraries
* style: pre-commit fixes
* tests: cmake target name fix
* tests: Added visibility test to ci
* tests: set the default visibility to hidden
* prototype/proof-of-concept fix: PYBIND11_EXPORT_GUARDED_DELETE
* Fix silly oversight: actually use PYBIND11_EXPORT_GUARDED_DELETE
* Update struct_smart_holder.h
* style: pre-commit fixes
* Update include/pybind11/detail/struct_smart_holder.h
* Update struct_smart_holder.h
* ci: fix addition to reusable-standard.yml
* Update CMakeLists.txt
* refactor: rename tests to test_cross_module_rtti
Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
---------
Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>
Co-authored-by: Ralf W. Grosse-Kunstleve <rgrossekunst@nvidia.com>
