nixpkgs/nixos/tests/retroarch.nix

import ./make-test-python.nix ({ pkgs, ... }:

  {
    name = "retroarch";
    meta = with pkgs.lib.maintainers; { maintainers = [ j0hax ]; };

    nodes.machine = { ... }:

      {
        imports = [ ./common/user-account.nix ];
        services.xserver.enable = true;
        services.xserver.desktopManager.retroarch = {
          enable = true;
          package = pkgs.retroarchBare;
        };
        services.xserver.displayManager = {
          sddm.enable = true;
          defaultSession = "RetroArch";
          autoLogin = {
            enable = true;
            user = "alice";
          };
        };
      };

    testScript = { nodes, ... }:
      let
        user = nodes.machine.config.users.users.alice;
        xdo = "${pkgs.xdotool}/bin/xdotool";
      in ''
        with subtest("Wait for login"):
            start_all()
            machine.wait_for_file("${user.home}/.Xauthority")
            machine.succeed("xauth merge ${user.home}/.Xauthority")

        with subtest("Check RetroArch started"):
            machine.wait_until_succeeds("pgrep retroarch")
            machine.wait_for_window("^RetroArch ")

        with subtest("Check configuration created"):
            machine.wait_for_file("${user.home}/.config/retroarch/retroarch.cfg")

        with subtest("Wait to get a screenshot"):
            machine.execute(
                "${xdo} key Alt+F1 sleep 10"
            )
            machine.screenshot("screen")
      '';
  })