According to the github page there is only support for the following responses:
Text,
Image
Quick replies
Cards
Is there going to be support for other response types such as suggestions, carouselSelect, mediaContent, etc? This would really help with testing these kinds of responses.
Would you have suggestions on how to test unsupported response types?
The github page is not fully up to date. You can see in the code what types are supported right now. suggestions, carouselSelect, pictures etc are all there.
If something is not supported, you can make use of the JSON_PATH asserter for accessing the raw Dialogflow response.