def METHOD_NAME():
    proc = PopenWorker(maximum_uses=2)
    proc.send(os.getpid)
    initial_pid = proc.recv()
    assert psutil.pid_exists(initial_pid)
    proc.send(os.getpid)
    assert proc.recv() == initial_pid
    assert psutil.pid_exists(initial_pid)
    proc.send(os.getpid)
    assert proc.recv() != initial_pid
    assert not psutil.pid_exists(initial_pid)