[3960785843] Upstream Reporter: Lalatendu Mohanty
Upstream issue status: Closed
Upstream description:

Incremental improvements to `tests/` identified during review of #83.

1. 1. Items

• [ ] *Add failure messages to older library tests* ? `test_libcudart_present`, `test_libcublas_present`, and `test_libcudnn_present` use bare `assert result.returncode == 0` with no message, while newer tests from #83 include helpful hints (e.g. which package may be missing). Align the older tests.

• [ ] *Deduplicate `APP_ROOT`/`WORKDIR` constants* ? defined identically in both `conftest.py` and `test_common.py`. Define once in `conftest.py` and import.