{ sources ? import ./npins
, pkgs ? import sources.nixpkgs {}
}:
with (import ./lib {});
eval {
  machines.bob = { self, config, ... }: {
    imports = [
      ./consumers/users.nix
      ./contracts/secrets.nix
      ./providers/asecret.nix
    ];
    networking.hostName = "bob";
    asecret.secrets.provider = config.userPasswords.secrets;
    userPasswords.secrets.consumer = config.asecret.secrets;
  };
  machines.alice = {
    networking.hostName = "alice";
  };
} // 
(let
  lib = pkgs.lib;
  config = {};
in
{
  test = 
    let
      inherit ((import ./contracts/secrets.nix {
        inherit lib;
      }).contracts.secrets) behaviorTest;
    in
    pkgs.testers.runNixOSTest ({
      name = "contracts-filebackup-restic";
      meta.maintainers = [ lib.maintainers.ibizaman ];
      # I tried using the following line but it leads to infinite recursion.
      # Instead, I made a hacky import. pkgs.callPackage was also giving an
      # infinite recursion.
      #
      #     } // config.contracts.secret.behaviorTest {
      #
    } // behaviorTest {
      providerRoot = [ "testing" "asecret" "mysecret" "secret" ];
      extraModules = [
        ./providers/asecret.nix
        ({ config, ... }: {
          testing.asecret.mysecret.content = config.test.content;
        })
      ];
    });
})