ESTHERTERSEN

> Implement some more useful tests, especially actually sending stuff, to make sure that everything works correctly. > > > > (Similar but more extensively than [the manager](https://github.com/php-telegram-bot/telegram-bot-manager/blob/6afdb0b167a85d3c3a2c34192bf3a6e614ef2b6f/tests/BotManagerTest.php#L470))