nixos/tzupdate: Add basic test

  tuxguitar = runTest ./tuxguitar.nix;

  twingate = runTest ./twingate.nix;

  typesense = handleTest ./typesense.nix { };

  tzupdate = runTest ./tzupdate.nix;

  ucarp = handleTest ./ucarp.nix { };

  udisks2 = handleTest ./udisks2.nix { };

  ulogd = handleTest ./ulogd/ulogd.nix { };

{ lib, ... }:

let

  clientNodeName = "client";

in

{

  name = "tzupdate";

  # TODO: Test properly:

  # - Add server node

  # - Add client configuration to talk to the server node

  # - Assert that the time zone changes appropriately

  nodes.${clientNodeName} = {

    services.tzupdate.enable = true;

  };

  testScript = ''

    start_all()

    ${clientNodeName}.wait_for_unit("multi-user.target")

  '';

  meta.maintainers = [ lib.maintainers.l0b0 ];

}