floydj PRO said over 1 year ago on Developing in Docker :
How do you get the test database up and running with this setup? I can run
dce bin/rails db:create

And it'll create the development database, but doesn't even try the test db. I can try:
dce bin/rails db:create RAILS_ENV=test
but it gives the same result.

Finally, when I do:
dce bin/rails db:test:prepare
I then receive an ActiveRecord::ConnectionNotEstablished error.

How do I resolve?