namespace :admin do
  resources :posts
end


# app/controllers/admin_posts_controller.rb
module Admin
  class PostsController < ApplicationController
  end
end

问题是我不知道Admin :: PostsControllerTest去了哪里.

我期待以下作品：

# test/functional/admin/posts_controller_test.rb
module Admin
  class PostsControllerTest < ActionController::TestCase
  end
end

但是如果我这样做,当我运行rake test时会出现以下错误：functionals：

RuntimeError: @controller is nil: make sure you set it in your test's setup method.