In my #testcraftcamp session on testing applications for embedded devices I got
really good feedback especially into making the application more observable and
use approval testing to validate its behaviour. Also
@emilybache CukenFest talk was recommended:
https://fast.wistia.net/embed/channel/gicldp4m47?wchannelid=gicldp4m47&wvideoid=s69d6v0lmw