ruby-on-rails - 加速 rspec Controller 测试 : using before all fails?

Question

我有一个简单的 Controller 测试，包含 a.o.以下代码:

context "POST :create" do
  before (:each) do
    post :create, :user_id => @user.id,
         :account => { .. some data ... }
  end
  it { response.status.should == 201 }
  it { response.location.should be_present }
end

现在我想到了一个非常简单的方法来加速这个测试，并使用 before(:all)而不是 before(:each) .在这种情况下，该帖子将只完成一次。

所以我写道:

context "POST :create" do
  before (:all) do
    post :create, :user_id => @user.id,
         :account => { .. some data ... }
  end
  it { response.status.should == 201 }
  it { response.location.should be_present }
end

但后来我收到以下错误:

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

这是故意的吗？有没有办法绕过它？

Answer 1

我在 rspec 邮件列表上问了这个问题，并从 @dchelimsky 本人那里得到了以下回复:

Yes. rspec-rails wraps the rails' testing framework which doesn't have a before(:all) concept in it, so all the data is reset before each example. Even if we wanted to support this in rspec-rails (which I don't) it would require changes to rails first.

所以在 before(:all) 中不可能进行 Controller 调用，它只能用于设置您的数据库或实例变量。