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

  {
    name = "iftop";
    meta.maintainers = with lib.maintainers; [ ma27 ];

    nodes = {
      withIftop = {
        imports = [ ./common/user-account.nix ];
        programs.iftop.enable = true;
      };
      withoutIftop = {
        imports = [ ./common/user-account.nix ];
        environment.systemPackages = [ pkgs.iftop ];
      };
    };

    testScript = ''
      with subtest("machine with iftop enabled"):
          withIftop.wait_for_unit("default.target")
          # limit to eth1 (eth0 is the test driver's control interface)
          # and don't try name lookups
          withIftop.succeed("su -l alice -c 'iftop -t -s 1 -n -i eth1'")

      with subtest("machine without iftop"):
          withoutIftop.wait_for_unit("default.target")
          # check that iftop is there but user alice lacks capabilitie
          withoutIftop.succeed("iftop -t -s 1 -n -i eth1")
          withoutIftop.fail("su -l alice -c 'iftop -t -s 1 -n -i eth1'")
    '';
  }
)