Test a Rails 4 Engine with the dummy app

Question

I want to test a Rails 4 Engine by using the dummy app, but I've no idea how to do that.

My engine only has one model named Event. At first I decomment the code in the event_test.rb:

test "the truth" do
  assert true
end

Now I tried to launch the tests from the folder of the dummy application but I don't know which command I have to use. I tried rake test (nothing happens) and rake test test/models/<engine-name>/event_test.rb (Error: rake aborted! Don't know how to build task...).

How can I launch the tests of my engine?

Answer 1

Dummy application only mounted point for you engine. You don't need run test from dummy dir. Your (controllers, views, ect.) from engine should available in dummy app and (controllers, views, ect.) from dummy should available in engine.