ruby-on-rails - 有没有办法缩短这个 RSpec 示例以停止代码重复？

Question

我在这个优秀的 Rails 教程的最后一章，我遇到了这段代码：

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方法可以停止重复，类似于下面的代码（它不会工作，因为它只创建 2 个测试）？

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

这不是 DRY 问题。您应该将递增测试和成功响应分开