nixpkgs/nixos/tests/fanout.nix

{
  system ? builtins.currentSystem,
  config ? { },
  pkgs ? import ../.. { inherit system config; },
}:
{ lib, pkgs, ... }:
{
  name = "fanout";
  meta.maintainers = [ lib.maintainers.therishidesai ];

  nodes =
    let
      cfg =
        { ... }:
        {
          services.fanout = {
            enable = true;
            fanoutDevices = 2;
            bufferSize = 8192;
          };
        };
    in
    {
      machine = cfg;
    };

  testScript = ''
    start_all()

    # mDNS.
    machine.wait_for_unit("multi-user.target")

    machine.succeed("test -c /dev/fanout0")
    machine.succeed("test -c /dev/fanout1")
  '';
}