How to setup multiple postgresql databases?

I have Ruby on Rails project which is connected to two databases. To make make my tests to pass I need to have two databases created. My circle.yml file looks like that:

dependencies:
  pre:
    - bash deploy/circle-dependencies.sh

machine:
  timezone:
    America/Los_Angeles

database:
  override:
    - mv config/database.ci.yml config/database.yml
    - bundle exec rake db:create db:structure:load --trace
    - createdb dashboard_test
    - psql dashboard_test < db/dashboard_test.sql

I see that steps that are responsible for creating and filling dashboard_test database are passing. But when I run my specs then following error appears:

ActiveRecord::AdapterNotSpecified: 'dashboard_test' database is not configured. Available: ["test"]

How can I fix that?