"""Viser hullet i testene. Kjør fra denne mappa:  python vis_hullet.py

Kjører de fem testene mot variant_bare_null.py i en midlertidig mappe, og
spør så varianten om farta på minus 5 km. Filene her blir ikke rørt.
"""
import os
import pathlib
import shutil
import subprocess
import sys
import tempfile

HER = pathlib.Path(__file__).parent
MILJO = {**os.environ, "PYTHONIOENCODING": "utf-8", "PYTHONDONTWRITEBYTECODE": "1"}


def main():
    sys.stdout.reconfigure(encoding="utf-8")
    with tempfile.TemporaryDirectory() as tmp:
        mappe = pathlib.Path(tmp)
        shutil.copy(HER / "variant_bare_null.py", mappe / "tempo.py")
        shutil.copy(HER / "test_tempo.py", mappe / "test_tempo.py")
        r = subprocess.run([sys.executable, "-m", "unittest"], cwd=mappe,
                           capture_output=True, encoding="utf-8", env=MILJO)
        dom = [l for l in r.stderr.splitlines() if l.startswith(("Ran ", "OK", "FAILED"))]
        print("Testene mot varianten:", " · ".join(d.split(" in ")[0] for d in dom))

    sys.dont_write_bytecode = True  # ingen __pycache__ i mappa
    sys.path.insert(0, str(HER))
    from variant_bare_null import tempo
    print('tempo(-5, "25:00") =', repr(tempo(-5, "25:00")))


if __name__ == "__main__":
    main()