import sysconfig
from pathlib import Path


def test_fd_endpoint_plugin_installed():
    # Find the site-packages directory
    site_packages = Path(sysconfig.get_path("purelib", "deb_system"))
    plugin_path = site_packages / "twisted" / "plugins" / "fd_endpoint.py"
    assert plugin_path.exists(), f"fd_endpoint.py not found at {plugin_path}"