nixos/tests/ncps: init service test

  navidrome = handleTest ./navidrome.nix {};

  nbd = handleTest ./nbd.nix {};

  ncdns = handleTest ./ncdns.nix {};

  ncps = runTest ./ncps.nix;

  ncps-custom-cache-datapath = runTest {

    imports = [ ./ncps.nix ];

    defaults.services.ncps.cache.dataPath =  "/path/to/ncps";

  };

  ndppd = handleTest ./ndppd.nix {};

  nix-channel = pkgs.callPackage ../modules/config/nix-channel/test.nix { };

  nebula = handleTest ./nebula.nix {};

{

  lib,

  pkgs,

  ...

}:

{

  name = "ncps";

  nodes = {

    harmonia = {

      services.harmonia = {

        enable = true;

        signKeyPaths = [

          (pkgs.writeText "cache-key" "cache.example.com-1:9FhO0w+7HjZrhvmzT1VlAZw4OSAlFGTgC24Seg3tmPl4gZBdwZClzTTHr9cVzJpwsRSYLTu7hEAQe3ljy92CWg==")

        ];

        settings.priority = 35;

      };

      networking.firewall.allowedTCPPorts = [ 5000 ];

      system.extraDependencies = [ pkgs.emptyFile ];

    };

    ncps = {

      services.ncps = {

        enable = true;

        cache = {

          hostName = "ncps";

          secretKeyPath = builtins.toString (

            pkgs.writeText "ncps-cache-key" "ncps:dcrGsrku0KvltFhrR5lVIMqyloAdo0y8vYZOeIFUSLJS2IToL7dPHSSCk/fi+PJf8EorpBn8PU7MNhfvZoI8mA=="

          );

        };

        upstream = {

          caches = [ "http://harmonia:5000" ];

          publicKeys = [

            "cache.example.com-1:eIGQXcGQpc00x6/XFcyacLEUmC07u4RAEHt5Y8vdglo="

          ];

        };

      };

      networking.firewall.allowedTCPPorts = [ 8501 ];

    };

    client01 = {

      nix.settings = {

        substituters = lib.mkForce [ "http://ncps:8501" ];

        trusted-public-keys = lib.mkForce [

          "ncps:UtiE6C+3Tx0kgpP34vjyX/BKK6QZ/D1OzDYX72aCPJg="

        ];

      };

    };

  };

  testScript =

    { nodes, ... }:

    let

      narinfoName =

        (lib.strings.removePrefix "/nix/store/" (

          lib.strings.removeSuffix "-empty-file" pkgs.emptyFile.outPath

        ))

        + ".narinfo";

      narinfoNameChars = lib.strings.stringToCharacters narinfoName;

      narinfoPath = lib.concatStringsSep "/" [

        nodes.ncps.services.ncps.cache.dataPath

        "store/narinfo"

        (lib.lists.elemAt narinfoNameChars 0)

        ((lib.lists.elemAt narinfoNameChars 0) + (lib.lists.elemAt narinfoNameChars 1))

        narinfoName

      ];

    in

    ''

      start_all()

      harmonia.wait_for_unit("harmonia.service")

      ncps.wait_for_unit("ncps.service")

      client01.wait_until_succeeds("curl -f http://ncps:8501/ | grep '\"hostname\":\"${toString nodes.ncps.services.ncps.cache.hostName}\"' >&2")

      client01.succeed("cat /etc/nix/nix.conf >&2")

      client01.succeed("nix-store --realise ${pkgs.emptyFile}")

      ncps.succeed("cat ${narinfoPath} >&2")

    '';

}