nixpkgs/nixos/tests/rss2email.nix

import ./make-test-python.nix {
  name = "rss2email";

  nodes = {
    server =
      { pkgs, ... }:
      {
        imports = [ common/user-account.nix ];
        services.nginx = {
          enable = true;
          virtualHosts."127.0.0.1".root = ./common/webroot;
        };
        services.rss2email = {
          enable = true;
          to = "alice@localhost";
          interval = "1";
          config.from = "test@example.org";
          feeds = {
            nixos = {
              url = "http://127.0.0.1/news-rss.xml";
            };
          };
        };
        services.opensmtpd = {
          enable = true;
          extraServerArgs = [ "-v" ];
          serverConfiguration = ''
            listen on 127.0.0.1
            action dovecot_deliver mda \
              "${pkgs.dovecot}/libexec/dovecot/deliver -d %{user.username}"
            match from any for local action dovecot_deliver
          '';
        };
        services.dovecot2 = {
          enable = true;
          enableImap = true;
          mailLocation = "maildir:~/mail";
          protocols = [ "imap" ];
        };
        environment.systemPackages =
          let
            checkMailLanded = pkgs.writeScriptBin "check-mail-landed" ''
              #!${pkgs.python3.interpreter}
              import imaplib

              with imaplib.IMAP4('127.0.0.1', 143) as imap:
                imap.login('alice', 'foobar')
                imap.select()
                status, refs = imap.search(None, 'ALL')
                print("=====> Result of search for all:", status, refs)
                assert status == 'OK'
                assert len(refs) > 0
                status, msg = imap.fetch(refs[0], 'BODY[TEXT]')
                assert status == 'OK'
            '';
          in
          [
            pkgs.opensmtpd
            checkMailLanded
          ];
      };
  };

  testScript = ''
    start_all()

    server.systemctl("start network-online.target")
    server.wait_for_unit("network-online.target")
    server.wait_for_unit("opensmtpd")
    server.wait_for_unit("dovecot2")
    server.wait_for_unit("nginx")
    server.wait_for_unit("rss2email")

    server.wait_until_succeeds("check-mail-landed >&2")
  '';
}