ruby-on-rails - 应该在 Rails 3 中测试 : should respond_with :success

Question

我在 Rails 3 中测试时遇到了一些问题。我目前正在将 Rails2 应用程序升级到 Rails3。我正在使用 shoulda 进行测试。在我的功能测试中，我使用 shoulda 进行测试，GET 应该成功响应

context "GET to :blame" do
  should "mark a song as blamed" do
    get :blame, :id => @song.id
    assert_equal Blame.count, 1
    get :blame, :id => @song.id
    assert_equal Blame.count, 2
  end
  should respond_with :success
end

在倒数第二行中，我在使用 rake test:functionals 执行功能测试时遇到以下错误:

  1) Error:
test: a visitor GET to :blame should respond with 200. (SongsControllerTest):
NoMethodError: undefined method `response_code' for nil:NilClass
    /Users/23tux/.rvm/gems/ruby-1.9.2-p136@rails3/gems/activesupport-3.0.3/lib/active_support/whiny_nil.rb:48:in `method_missing'
    /Users/23tux/.rvm/gems/ruby-1.9.2-p136@rails3/gems/shoulda-2.11.3/lib/shoulda/action_controller/matchers/respond_with_matcher.rb:57:in `response_code'
    /Users/23tux/.rvm/gems/ruby-1.9.2-p136@rails3/gems/shoulda-2.11.3/lib/shoulda/action_controller/matchers/respond_with_matcher.rb:48:in `correct_status_code?'
    /Users/23tux/.rvm/gems/ruby-1.9.2-p136@rails3/gems/shoulda-2.11.3/lib/shoulda/action_controller/matchers/respond_with_matcher.rb:30:in `matches?'
    /Users/23tux/.rvm/gems/ruby-1.9.2-p136@rails3/gems/shoulda-2.11.3/lib/shoulda/assertions.rb:53:in `assert_accepts'
    /Users/23tux/.rvm/gems/ruby-1.9.2-p136@rails3/gems/shoulda-2.11.3/lib/shoulda/context.rb:324:in `block in should'
    /Users/23tux/.rvm/gems/ruby-1.9.2-p136@rails3/gems/shoulda-2.11.3/lib/shoulda/context.rb:382:in `call'
    /Users/23tux/.rvm/gems/ruby-1.9.2-p136@rails3/gems/shoulda-2.11.3/lib/shoulda/context.rb:382:in `block in create_test_from_should_hash'

我使用的是 Ruby 1.9.2、Rails 3.0.3 和 Shoulda 2.11.3。希望有人能帮助我。

谢谢，晚礼服

Answer 1

这两个 should block 是分开运行的，不会对 respond_with 发出任何请求，因此会出现错误。您需要在设置 block 中发出请求，例如:

context "GET to :blame" do
  setup do
    get :blame, :id => @song.id
  end
  should "mark a song as blamed" do
    assert_equal Blame.count, 1
  end
  should respond_with :success
end