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

  meta = with lib.maintainers; {
    maintainers = [ rnhmjoj ];
  };

  machine = { ... }: {
    virtualisation.useBootLoader = true;

    boot.loader.timeout = null;
    boot.loader.grub = {
      enable = true;
      users.alice.password = "supersecret";

      # OCR is not accurate enough
      extraConfig = "serial; terminal_output serial";
    };
  };

  testScript = ''
    def grub_login_as(user, password):
        """
        Enters user and password to log into GRUB
        """
        machine.wait_for_console_text("Enter username:")
        machine.send_chars(user + "\n")
        machine.wait_for_console_text("Enter password:")
        machine.send_chars(password + "\n")


    def grub_select_all_configurations():
        """
        Selects "All configurations" from the GRUB menu
        to trigger a login request.
        """
        machine.send_monitor_command("sendkey down")
        machine.send_monitor_command("sendkey ret")


    machine.start()

    # wait for grub screen
    machine.wait_for_console_text("GNU GRUB")

    grub_select_all_configurations()
    with subtest("Invalid credentials are rejected"):
        grub_login_as("wronguser", "wrongsecret")
        machine.wait_for_console_text("error: access denied.")

    grub_select_all_configurations()
    with subtest("Valid credentials are accepted"):
        grub_login_as("alice", "supersecret")
        machine.send_chars("\n")  # press enter to boot
        machine.wait_for_console_text("Linux version")

    with subtest("Machine boots correctly"):
        machine.wait_for_unit("multi-user.target")
  '';
})