, hydraSrc ? {outPath = ./.; rev = 1234;}

, hydraSrc ? {outPath = ../hydra-wc; rev = 1234;}

  tests =
    { nixos ? ../nixos, system ? "x86_64-linux" }:
    let hydra = build { inherit system; }; in
    with import "${nixos}/lib/testing.nix" { inherit nixpkgs system; services = null; };
    {

      install = simpleTest {
        machine = 
          { config, pkgs, ... }:
          { services.postgresql.enable = true;
            environment.systemPackages = [ hydra ];
          };
        testScript =
          ''
            $machine->waitForJob("postgresql");
            # Initialise the database and the state.
            $machine->mustSucceed
                ( "createdb -O root hydra",
                , "psql hydra -f ${hydra}/share/hydra/sql/hydra-postgresql.sql"
                , "mkdir /var/lib/hydra"
                );
            # Start the web interface.
            #$machine->mustSucceed("HYDRA_DATA=/var/lib/hydra HYDRA_DBI='dbi:Pg:dbname=hydra;user=hydra;' hydra_server.pl >&2 &");
            #$machine->waitForOpenPort("3000");
          '';
          
      };
      
    };