from pathlib import Path
from core.integrity_checker import IntegrityChecker


def test_calculate_and_verify_hash(tmp_path: Path):
    file = tmp_path / "data.txt"
    file.write_text("hello", encoding="utf-8")

    hash_file = tmp_path / "data.hash"
    checker = IntegrityChecker()

    checker.save_hash(file, hash_file)
    assert checker.verify_hash(file, hash_file)

    # Нарушим целостность
    file.write_text("changed", encoding="utf-8")
    assert not checker.verify_hash(file, hash_file)