Rspec的 - 測試方法接電話內的另一種方法

Question

在我的Rails應用程序我測試發送SMS消息了實例方法。它看起來像這樣：

group.rb

def send_notifications 
    twilio_sms = Twilio::REST::Client.new('mykey', 'mykey') 
    begin 
    twilio_sms.account.messages.create(
      from: "+188888888", 
      to: "+1#{phone_number}", 
      body: "Message from Company: New item uploaded to group" 
    ) 
    rescue 
    puts 'Invalid number' 
    end 
end 

我無法搞清楚如何測試twilio_sms.account.messages.create部分。

我的規格看起來像這樣至今：

group_spec.rb

describe Group do 
    context 'instance methods' do 
    describe '.send_notifictions' do 
     it 'calls the create method on the twilio messages object' do 
     twilio_messages = instance_double("Twilio::REST::Messages") 
     expect(twilio_messages).to receive(:create) 

     group = create(:group_with_notifications) 
     group.send_notifications 
     end 
    end 
    end 
end 

這顯然是不工作或我就不會問這個問題。測試創建消息是否正確發送的正確方法是什麼？還是我以錯誤的方式接近這個？任何幫助將不勝感激，謝謝！

Answer 1

試試這個

describe Group do 
    describe 'instance methods' do 

    describe '.send_notifictions' do 
     it 'creates a new message' do 
     twilio_sms = double(:twilio_sms) 
     twilio_messages = double(:twilio_messages) 
     expect(Twilio::REST::Client).to receive(:new).with('mykey', 'mykey').and_return(twilio_sms) 
     expect(twilio_sms).to receive(:account).and_return(twilio_messages) 
     expect(twilio_messages).to receive(:messages).and_return(twilio_messages) 
     expect(twilio_messages).to receive(:create).with({:from => "+188888888", :to => "+15555555", :body => "Message from Company: New item uploaded to group"}).and_return(true) 
     group = Group.create(some_attributes: 'foo') 
     group.send_notifications 
     end 
    end 

    end 
end