test

# Run Polygraphy Tests ## Required environment variables Set these before running any pytest command (from the Makefile `test` target): - `PYTHONPATH` must include the repo root - `POLYGRAPHY_INTERNAL_CORRECTNESS_CHECKS=1` - `CUDA_MODULE_LOADING=LAZY` ## Running a specific test file or subset ```bash PYTHONPATH="$(pwd):${PYTHONPATH}" \ POLYGRAPHY_INTERNAL_CORRECTNESS_CHECKS=1 \ CUDA_MODULE_LOADING=LAZY \ python3 -m pytest <path/to/test_file.py> -v --durations=15 --failed-first --new-first --script-launch-mode=subprocess ``` ## Running the full test suite Serial tests must run before parallel ones: ```bash PYTHONPATH="$(pwd):${PYTHONPATH}" \ POLYGRAPHY_INTERNAL_CORRECTNESS_CHECKS=1 \ CUDA_MODULE_LOADING=LAZY \ python3 -m pytest tests/ -m "serial and not slow" -v --durations=15 --failed-first --new-first --script-launch-mode=subprocess && \ python3 -m pytest tests/ -n 8 --dist=loadscope -m "not serial and not slow" -v --durations=15 --failed-first --new-first --script-launch-mode=subprocess ``` ## Notes - Always pass `--script-launch-mode=subprocess` to avoid in-process runner issues with stdout/stderr capture. - Skip `-n 8 --dist=loadscope` when running a small subset. - `slow` tests are excluded by default; drop `and not slow` to include them. - **Use this skill proactively** after any code change (refactor, bug fix, new feature) that could affect runtime behaviour — run the relevant test file before committing, without waiting for the user to ask.