{
  testers,
  cntr,
}:

let
  ociTest =
    { pkgs, ... }:
    {
      virtualisation.oci-containers.containers.nginx = {
        image = "nginx-container";
        imageFile = pkgs.dockerTools.examples.nginx;
        ports = [ "8181:80" ];
      };

      environment.systemPackages = [
        cntr
      ];
    };
in
{
  docker = testers.nixosTest {
    name = "docker";
    nodes.server =
      { ... }:
      {
        imports = [ ociTest ];
        virtualisation.oci-containers.backend = "docker";
      };

    testScript = ''
      start_all()
      server.wait_for_unit("docker-nginx.service")
      server.wait_for_open_port(8181)
      server.succeed("cntr attach nginx true")
    '';
  };
  podman = testers.nixosTest {
    name = "podman";
    nodes.server =
      { ... }:
      {
        imports = [ ociTest ];
        virtualisation.oci-containers.backend = "podman";
      };

    testScript = ''
      start_all()
      server.wait_for_unit("podman-nginx.service")
      server.wait_for_open_port(8181)
      server.succeed("cntr attach nginx true")
    '';
  };
}