from core.crypto_manager import CryptoManager


def test_encrypt_decrypt_file(tmp_path):
    file = tmp_path / "plain.txt"
    file.write_text("super secret", encoding="utf-8")

    enc_file = tmp_path / "plain.enc"
    dec_file = tmp_path / "plain.dec"

    crypto = CryptoManager()
    key = crypto.generate_key()

    crypto.encrypt_file(file, key, enc_file)
    crypto.decrypt_file(enc_file, key, dec_file)

    assert dec_file.read_text(encoding="utf-8") == "super secret"