#!/usr/bin/python3

import os
import posix
from systemd.daemon import _is_fifo

posix.mkfifo("test.fifo")
try:
    assert not _is_fifo(0, None)
    assert not _is_fifo(0, "test.fifo")
    fd = os.open("test.fifo", os.O_RDONLY|os.O_NONBLOCK)
    assert _is_fifo(fd, None)
    assert _is_fifo(fd, "test.fifo")
finally:
    os.unlink("test.fifo")