We have Qunit tests written in the GopherJS client in ./client/.
We have a server running the gRPC backend and hosting the GopherJS client in ./server/.
We have a Chromedriver driven browser integration testing setup
that loads the GopherJS client page and checks that there were 0 failures,
courtesy of ginkgo, gomega and agouti.
Simply running ginkgo . starts the server hosting the GopherJS unit test client,
loads the page in Chromedriver using agouti, parses the number of failures and
if it's anything other than 0, the entire test fails.