nixpkgs/nixos/tests/packagekit.nix

{ pkgs, ... }:
{
  name = "packagekit";
  meta = with pkgs.lib.maintainers; {
    maintainers = [ peterhoeg ];
  };

  nodes.machine =
    { ... }:
    {
      environment.systemPackages = with pkgs; [ dbus ];
      services.packagekit = {
        enable = true;
      };
    };

  testScript = ''
    start_all()

    # send a dbus message to activate the service
    machine.succeed(
        "dbus-send --system --type=method_call --print-reply --dest=org.freedesktop.PackageKit /org/freedesktop/PackageKit org.freedesktop.DBus.Introspectable.Introspect"
    )

    # so now it should be running
    machine.wait_for_unit("packagekit.service")
  '';
}