OUTPUT

mickael@mickael-laptop:~/projects/pabd/test$ ruby functional/commerce/commercial/prospects_controller_test.rb 
  * WARNING: 'test: logged in on GET to index should respond with success. ' is already defined
  * WARNING: 'test: logged in on GET to index should render with the "application" layout. ' is already defined
  * WARNING: 'test: logged in on GET to index should render template :index. ' is already defined
  * WARNING: 'test: logged in on GET to index should not set the flash. ' is already defined
  * WARNING: 'test: logged in on GET to new should respond with success. ' is already defined
  * WARNING: 'test: logged in on GET to new should render with the "application" layout. ' is already defined
  * WARNING: 'test: logged in on GET to new should render template :new. ' is already defined
  * WARNING: 'test: logged in on GET to new should not set the flash. ' is already defined
  * WARNING: 'test: logged in on POST to :create (valid data) should assign @prospect with a kind of Prospect. ' is already defined
  * WARNING: 'test: logged in on POST to :create (valid data) should respond with redirect. ' is already defined
  * WARNING: 'test: logged in on POST to :create (valid data) should redirect to prospects index page. ' is already defined
  * WARNING: 'test: logged in on POST to :create (invalid data) should assign @prospect with a kind of Prospect. ' is already defined
  * WARNING: 'test: logged in on POST to :create (invalid data) should respond with success. ' is already defined
  * WARNING: 'test: logged in on POST to :create (invalid data) should render with the "application" layout. ' is already defined
  * WARNING: 'test: logged in on POST to :create (invalid data) should render template :new. ' is already defined
  * WARNING: 'test: logged in on POST to :create (invalid data) should not set the flash. ' is already defined
  * WARNING: 'test: logged in on GET to :show should respond with success. ' is already defined
  * WARNING: 'test: logged in on GET to :show should render with the "application" layout. ' is already defined
  * WARNING: 'test: logged in on GET to :show should render template :show. ' is already defined
  * WARNING: 'test: logged in on GET to :show should not set the flash. ' is already defined
  * WARNING: 'test: logged in on GET to :edit should respond with success. ' is already defined
  * WARNING: 'test: logged in on GET to :edit should render with the "application" layout. ' is already defined
  * WARNING: 'test: logged in on GET to :edit should render template :edit. ' is already defined
  * WARNING: 'test: logged in on GET to :edit should not set the flash. ' is already defined
  * WARNING: 'test: logged in on PUT to :update (valid data) should assign @prospect with a kind of Prospect. ' is already defined
  * WARNING: 'test: logged in on PUT to :update (valid data) should respond with redirect. ' is already defined
  * WARNING: 'test: logged in on PUT to :update (valid data) should redirect to prospects index page. ' is already defined
  * WARNING: 'test: logged in on PUT to :update (invalid data) should assign @prospect with a kind of Prospect. ' is already defined
  * WARNING: 'test: logged in on PUT to :update (invalid data) should respond with success. ' is already defined
  * WARNING: 'test: logged in on PUT to :update (invalid data) should render template :edit. ' is already defined
  * WARNING: 'test: logged in on DELETE to :destroy should assign @prospect. ' is already defined
  * WARNING: 'test: logged in on DELETE to :destroy should respond with redirect. ' is already defined
  * WARNING: 'test: logged in on DELETE to :destroy should redirect to prospects index page. ' is already defined
Loaded suite functional/commerce/commercial/prospects_controller_test
Started
.................................
Finished in 5.559221 seconds.

33 tests, 50 assertions, 0 failures, 0 errors

prospects_controller_test.rb

require 'test_helper'

class Commerce::Commercial::ProspectsControllerTest < ActionController::TestCase
  %w(fr en).each do |lang|
    context "logged in" do
      setup do
        UserSession.create(Factory(:user))
        Factory(:agency)
        Factory(:feedback)
        @prospect = Factory.stub(:prospect)
        @prospect.id = 1001
        I18n.locale = lang.to_sym

        Prospect.stubs(:find).returns(@prospect)
        Prospect.stubs(:find).with(:all, anything).returns([@prospect])
      end

      should_get_action :index
      should_get_action :new

      context "on POST to :create (valid data)" do
        setup do
          Prospect.any_instance.expects(:save).returns(true).once
          Prospect.any_instance.stubs(:id).returns(1001)

          post :create, :prospect => {}
        end
        I18n.locale = lang.to_sym
        should_assign_to :prospect, :class => Prospect
        should_respond_with :redirect
        should_redirect_to("prospects index page"){commerce_commercial_prospects_path}
      end

      context "on POST to :create (invalid data)" do
        setup do
          Prospect.any_instance.expects(:save).returns(false).once
          post :create, :prospect => {}
        end

        should_assign_to :prospect, :class => Prospect
        should_respond_with :success
        should_render_with_layout
        should_render_template :new
        should_not_set_the_flash
      end

      context "on GET to :show" do
        setup do
          get :show, {:id => @prospect.id}
        end

        should_respond_with :success
        should_render_with_layout
        should_render_template :show
        should_not_set_the_flash
      end

      context "on GET to :edit" do
        setup do
          get :edit, :id => @prospect.id
        end

        should_respond_with :success
        should_render_with_layout
        should_render_template :edit
        should_not_set_the_flash
      end

      context "on PUT to :update (valid data)" do
        setup do
          @prospect.expects(:update_attributes).returns(true).once
          put :update, :id => @prospect.id, :prospect => {}
        end

        should_assign_to :prospect, :class => Prospect
        should_respond_with :redirect
        should_redirect_to("prospects index page"){commerce_commercial_prospects_path}
      end
      context "on PUT to :update (invalid data)" do
        setup do
          @prospect.expects(:update_attributes).returns(false).once
          put :update, :id => @prospect.id, :prospect => {}
        end

        should_assign_to :prospect, :class => Prospect
        should_respond_with :success
        should_render_template :edit
      end

      context "on DELETE to :destroy" do
        setup do
          @prospect.expects(:destroy).returns(true).once
          delete :destroy, :id => @prospect.id
        end

        should_assign_to(:prospect){@prospect}
        should_respond_with :redirect
        should_redirect_to("prospects index page"){commerce_commercial_prospects_path}
      end
    end
  end
end

With or without my loop %w(fr en).each do |lang| .. end there are 33 tests. So I think tests with "Warning" flag are not run.