"""Smoke + focused tests for meetus.

Run from the repo root:
    python -m unittest discover -s tests -t . -v

This package's import makes the repo importable and provides a `cv2` stub (only
cv2 is missing in minimal envs; numpy/PIL are real and not shadowed).
"""
import os
import sys
from pathlib import Path

REPO_ROOT = Path(__file__).resolve().parent.parent
STUBS_DIR = Path(__file__).resolve().parent / "_stubs"

for _p in (str(STUBS_DIR), str(REPO_ROOT)):
    if _p not in sys.path:
        sys.path.insert(0, _p)


def subprocess_env(extra=None):
    """Env for subprocess tests: repo root + cv2 stub on PYTHONPATH."""
    env = dict(os.environ)
    pp = env.get("PYTHONPATH", "")
    parts = [str(REPO_ROOT), str(STUBS_DIR)] + ([pp] if pp else [])
    env["PYTHONPATH"] = os.pathsep.join(parts)
    if extra:
        env.update(extra)
    return env