You almost finished your Amazon Alexa Skill and are now started the quest for the Holy Grail of Alexa Testing. Now, you are desperately searching for a way to automate it. Even, googling it gave no obvious outcome.
Fortunately, your search is over.
Read the article on medium: https://medium.com/@dtmilano/testing-alexa-skills-the-grail-quest-3beba82450bb