ruby on rails - Rspec很难测试#create with build controller方法

Question

如果你的#create controller方法是:

@testimonial = Testimonial.new(testimonial_params)

你在你的规格中测试它，像这样:

testimonials_controller_spec.rb

describe "POST #create" do 
    context "with VALID attributes" do 
        it "creates new testimonial" do 
            expect {
                    post :create, testimonial: FactoryGirl.attributes_for(:testimonial)
            }.to change(Testimonial, :count).by(1)
        end
    end
end

很好。代码:

post :create, testimonial: FactoryGirl.attributes_for(:testimonial)

是正确的。

然而，在我的证词控制器，我的创建方法实际上是:

@testimonial = current_user.testimonials.build(testimonial_params)

我的rspec方法不能处理这个问题。我应该用什么来代替:

post :create, testimonial: FactoryGirl.attributes_for(:testimonial)

?

Answer 1

在调用控制器动作之前登录用户。

#testimonials_controller_spec.rb 
require 'rails_helper' 
describe TestimonialsController, type: :controller do
  let(:user) do
    FactoryGirl.create :user
  end
  before do
    sign_in user
  end
  describe "POST #create" do 
    context "with VALID attributes" do 
      it "creates new testimonial" do 
        expect {
          post :create, testimonial:    FactoryGirl.attributes_for(:testimonial)
        }.to change(Testimonial, :count).by(1)
      end
    end
  end
end

Answer 2

Build不会将记录保存/持久化到数据库中。为什么不写呢:

@testimonial = current_user.testimonials.new(testimonial_params)
@testimonial.save