Motivation

• Ensure the wrapper honors and correctly processes all relevant environment variables.
• Prevent regressions around venv selection, dependency installation, and logging behavior.
• Provide reproducible, automated checks for new environment knobs like PYWRAP_PIP_ARGS and PYWRAP_LOCK_POLL_SEC.

Description

• Added helper methods _run_wrapper and _venv_dir and imported json to tests/test_wrapper.py to simplify invoking the wrapper and inspecting the venv.
• Added tests for verbose logging and dep mode selection, custom requirements override via PYWRAP_REQUIREMENTS, cache-mode directory via PYWRAP_CACHE_DIR, force recreation via PYWRAP_FORCE_RECREATE, and pip args handling via PYWRAP_PIP_ARGS.
• Extended the lock timeout test to set PYWRAP_LOCK_POLL_SEC for faster polling during the timeout scenario.

Testing

• Ran python -m unittest tests.test_wrapper which executed the test suite.
• All tests passed (OK, 8 tests run).

Codex Task