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 .