{ pkgs, tnixModules, nodeSpecialArgs }:

pkgs.testers.nixosTest {
  name = "tnix-boot";

  nodes.tnix = {
    _module.args = nodeSpecialArgs;
    imports = tnixModules;

    # nixosTest supplies pkgs externally (already carrying the config
    # above); configuration.nix's own nixpkgs.config.* then trips
    # nixpkgs.nix's "externally created instance" assertion regardless of
    # whether the values agree, so it must be forced empty here only.
    nixpkgs.config = pkgs.lib.mkForce { };
  };

  testScript = ''
    start_all()
    tnix.wait_for_unit("multi-user.target")
  '';
}