import sys
from pathlib import Path

import pytest

sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "src"))

from llamacppctl.lock_ops import FileLock, LockError  # noqa: E402


def test_lock_acquire_and_release(tmp_path):
    lock_path = tmp_path / "test.lock"
    with FileLock(lock_path):
        assert lock_path.exists()
    # released cleanly, can acquire again
    with FileLock(lock_path):
        pass


def test_lock_busy_raises(tmp_path):
    lock_path = tmp_path / "busy.lock"
    with FileLock(lock_path):
        with pytest.raises(LockError):
            with FileLock(lock_path):
                pass


def test_lock_creates_parent_dirs(tmp_path):
    lock_path = tmp_path / "nested" / "dir" / "test.lock"
    with FileLock(lock_path):
        assert lock_path.exists()