Question

我有一个应用程序，它检测请求中的子域并将结果设置为变量。

e.g。

before_filter :get_trust_from_subdomain

def get_trust_from_subdomain
  @selected_trust = "test"
end

如何用Test :: Unit / Shoulda测试？我没有看到进入ApplicationController并查看设置的方法......

Answer 1

assigns方法应该允许您查询@selected_trust的值。断言其值等于“test”如下：

assert_equal 'test', assigns('selected_trust')

给定控制器foo_controller.rb

class FooController < ApplicationController
  before_filter :get_trust_from_subdomain

  def get_trust_from_subdomain
    @selected_trust = "test"
  end

  def index
    render :text => 'Hello world'
  end
end

可以在foo_controller_test.rb：

中编写如下功能测试

class FooControllerTest < ActionController::TestCase
  def test_index
    get :index
    assert @response.body.include?('Hello world')
    assert_equal 'test', assigns('selected_trust')
  end
end

与评论相关：请注意，过滤器可以放在ApplicationController中，然后任何派生的控制器也将继承此过滤器行为：

class ApplicationController < ActionController::Base
  before_filter :get_trust_from_subdomain

  def get_trust_from_subdomain
    @selected_trust = "test"
  end
end

class FooController < ApplicationController
  # get_trust_from_subdomain filter will run before this action.
  def index
    render :text => 'Hello world'
  end
end

Answer 2

ApplicationController是全球性的，您是否考虑过编写机架中间件？更容易测试。

Answer 3

我在应用程序的另一个控制器中选择了这个：

require 'test_helper'

class HomeControllerTest < ActionController::TestCase

  fast_context 'a GET to :index' do
    setup do
      Factory :trust
      get :index
    end
    should respond_with :success

    should 'set the trust correctly' do
      assert_equal 'test', assigns(:selected_trust)
    end
  end

end

在Rails中测试ApplicationController before_filter

3 个答案: