RSPEC为什么在Rails 5.2的Edit视图和New视图测试之间表现不同？

Question

我正在使用Rails 5.2开发应用程序，并使用Capybara测试功能。

我想确保未连接的用户无法查看Playgrounds页面，而已连接的用户可以查看。身份验证基于Devise，因此，当您请求未经授权的页面时，会将您路由到登录页面。

我编写了此测试：spec / features / playgrounds_spec.rb

require 'rails_helper'

RSpec.describe Playground, type: :request do
  include Warden::Test::Helpers

  describe "Playground pages: " do
    let(:pg) {FactoryBot.create(:playground)}

    context "when not signed in " do
      it "should propose to log in when requesting index" do
        get playgrounds_path
        follow_redirect!
        expect(response.body).to include('Sign in')
      end
      it "should propose to log in when requesting new" do
        get new_playground_path(pg)
        follow_redirect!
        expect(response.body).to include('Sign in')
      end
      it "should propose to log in when requesting edit" do
        get edit_playground_path(pg)
        follow_redirect!
        expect(response.body).to include('Sign in')
      end
      it "should propose to log in when requesting show" do
        get playground_path(pg)
        follow_redirect!
        expect(response.body).to include('Sign in')
      end
    end
    context "when signed in" do
      before do
        get "/users/sign_in"
        test_user = FactoryBot.create(:user)
        login_as test_user, scope: :user
      end
      it "should display index" do
        get playgrounds_path
        expect(response).to render_template(:index)
      end
      it "should display new view" do
        get new_playground_path(pg)
        expect(response).to render_template(:_form)
      end
      it "should display edit view" do
        get edit_playground_path(pg)
        expect(response).to render_template(:_form)
      end
      it "should display show view" do
        get playground_path(pg)
        expect(response).to render_template(:show)
      end
    end
  end
end

测试应该成功，但是失败并出现以下错误：

.F....#<Playground:0x000000000d119470>
.#<Playground:0x000000000e059700>
.

Failures:

  1) Playground Playground pages:  when not signed in  should propose to log in when requesting new
     Failure/Error: follow_redirect!

     RuntimeError:
       not a redirect! 401 Unauthorized
     # ./spec/features/playgrounds_spec.rb:17:in `block (4 levels) in <top (required)>'

Finished in 4.81 seconds (files took 12.28 seconds to load)
8 examples, 1 failure

Failed examples:

rspec ./spec/features/playgrounds_spec.rb:15 # Playground Playground pages:  when not signed in  should propose to log in when requesting new

为了解决这个问题，我可以简单地测试请求返回到新视图的状态：

  it "should propose to log in when requesting new" do
    get new_playground_path(pg)
    #follow_redirect!
    expect(response.status).to eq 401
  end

但是它不会告诉我用户是否真的登陆了登录页面...

一个更多详细信息：当一个未连接的用户尝试访问此新视图时，他实际上已登录到登录页面！

您能否解释一下为什么新视图的行为不同，以及如何解决此问题？

非常感谢！

我正在使用Rails 5.2开发应用程序，并使用Capybara测试功能。我想确保未连接的用户无法查看Playgrounds页面，而已连接的用户可以查看。 ...

Answer 1

我终于发现方法new_playground_path不需要任何参数。