有沒有辦法縮短這個RSpec示例來停止代碼重複？

Question

我對this excellent Rails tutorial最後一章，我已經臨到這個代碼：

describe "creating a relationship with Ajax" do 
    it "should increment the Relationship count" do 
    expect do 
     xhr :post, :create, relationship: { followed_id: other_user.id } 
    end.to change(Relationship, :count).by(1) 
    end 

    it "should respond with success" do 
    xhr :post, :create, relationship: { followed_id: other_user.id } 
    response.should be_success 
    end 
end 

我想知道是否有任何辦法可以阻止重複，類似下面的代碼（這不會工作，因爲它只會創建2個測試）？

it "should increment relationships count" do 
    expect do 
    xhr :post, :create, relationship: { followed_id: other_user.id } 
    response.should be_success   
    end.to change(Relationship, :count).by(1) 
end 

Answer 1

這不是乾的問題。你應該單獨增加測試&成功的迴應