› rails new

› rails db:migrate

› rails g controller tests

• Update test/controller/tests_controller_test.rb to add expensive tests

› rails g channel tests

• create actions tests#index and tests#cable

• start action cable on routes.rb

• add stream_from "tests" to TestsChannel#subscribed

• add to tests_controller.rb#cable

Thread.new do
  dump = `rake`
  ActionCable.server.broadcast "tests", message: dump
end

• add document.getElementById("dump").innerHTML = data['message'] to js/channels/tests.coffee

------ job

• create actions tests#job

› rails g job tests_monitor

• move thread to job