Rails%203%20In%20Action

Classes outside your control
When you run this example again with bin/rspec spec/integration/topics_spec
.rb:25, you’ll see that it now passes:
1 example, 0 failures
One down, two to go. Let’s run the next spec down in this file with bin/rspec spec/
integration/topics_spec.rb:30. When you do, you’ll see this output:
NoMethodError:
undefined local variable or method `sign_in_url' for ...
Your test currently can’t find the sign_in_path helper for your dummy application.
You can define the helper by putting this line in spec/dummy/config/routes.rb:
match "/sign_in", :to => "fake#sign_in", :as => "sign_in"
When you run your test again with bin/rspec spec/integration/topics_spec
.rb:30, you’ll be shown this:
expected "http://www.example.com/login"
got "http://www.example.com/forem/topics/new"
The page expected to be on /login, but was actually on /forem/topics/new! That’s
because you’re not yet authenticating users when they go to the new action in
Forem::TopicsController. You can add a before_filter to the class definition in
app/controllers/forem/topics_controller.rb using this code:
before_filter :authenticate_forem_user!, :only => [:new, :create]
You’ll put this authenticate_forem_user! method definition inside Forem
::ApplicationController so that you can use it for all the controllers of your engine.
It’ll go like this:
private
def authenticate_forem_user!
if !current_user
flash[:notice] = "You must be authenticated before you can do that."
redirect_to main_app.sign_in_url
end
B Go to login path
end
Now when you visit your new or create actions in Forem::TopicsController, you’ll
be sent away to the login path for your application, which you can access by calling
sign_in_path on the main_app helper B. You must use main_app here so that you
point to the application’s routes rather than the engine’s. The engine itself has no
concept of sign_in_path.
When you run your spec again with bin/rspec spec/integration/topics_spec
.rb:30, you’ll see that this test is now failing because your application is missing the
FakeController that your sign_in_path route uses:
ActionController::RoutingError:
uninitialized constant FakeController
503