nixpkgs/nixos/tests/vsftpd.nix

import ./make-test-python.nix (
  { pkgs, ... }:
  {
    name = "vsftpd";

    nodes = {
      server = {
        services.vsftpd = {
          enable = true;
          userlistDeny = false;
          localUsers = true;
          userlist = [ "ftp-test-user" ];
          writeEnable = true;
          localRoot = "/tmp";
        };
        networking.firewall.enable = false;

        users = {
          users.ftp-test-user = {
            isSystemUser = true;
            password = "ftp-test-password";
            group = "ftp-test-group";
          };
          groups.ftp-test-group = { };
        };
      };

      client = { };
    };

    testScript = ''
      client.start()
      server.wait_for_unit("vsftpd")
      server.wait_for_open_port(21)

      client.succeed("curl -u ftp-test-user:ftp-test-password ftp://server")
      client.succeed('echo "this is a test" > /tmp/test.file.up')
      client.succeed("curl -v -T /tmp/test.file.up -u ftp-test-user:ftp-test-password ftp://server")
      client.succeed("curl -u ftp-test-user:ftp-test-password ftp://server/test.file.up > /tmp/test.file.down")
      client.succeed("diff /tmp/test.file.up /tmp/test.file.down")
      assert client.succeed("cat /tmp/test.file.up") == server.succeed("cat /tmp/test.file.up")
      assert client.succeed("cat /tmp/test.file.down") == server.succeed("cat /tmp/test.file.up")
    '';
  }
)