正在阅读一本书 "Programming Phoenix >= 1.4"，卡在了 "Testing Logged-Out Users"

Question

我正在关注一本书“Programming Phoenix >= 1.4”，卡在了“测试注销用户”（集成测试，第 161 页）。测试失败。

video_controller_test.exs

    defmodule RumblWeb.VideoControllerTest do
    use RumblWeb.ConnCase, async: true
  
    test "requires user authentication on all actions", %{conn: conn} do
      Enum.each([
        get(conn, Routes.video_path(conn, :new)),
        get(conn, Routes.video_path(conn, :index)),
        get(conn, Routes.video_path(conn, :show, "123")),
        get(conn, Routes.video_path(conn, :edit, "123")),
        put(conn, Routes.video_path(conn, :update, "123", %{})),
        post(conn, Routes.video_path(conn, :create, %{})),
        delete(conn, Routes.video_path(conn, :delete, "123")),
      ], fn conn ->
        assert html_response(conn, 302)
        assert conn.halted
      end)
    end
  end

混合测试test/rumbl_web

 1) test requires user authentication on all actions (RumblWeb.VideoControllerTest)
     test/rumbl_web/controllers/video_controller_test.exs:4
     ** (FunctionClauseError) no function clause matching in Rumbl.Multimedia.list_user_videos/1

     The following arguments were given to Rumbl.Multimedia.list_user_videos/1:
     
         # 1
         nil
     
     Attempted function clauses (showing 1 out of 1):
     
         def list_user_videos(%Rumbl.Accounts.User{} = user)
     
     code: get(conn, Routes.video_path(conn, :index)),
     stacktrace:
       (rumbl) lib/rumbl/multimedia.ex:107: Rumbl.Multimedia.list_user_videos/1
       (rumbl) lib/rumbl_web/controllers/video_controller.ex:18: RumblWeb.VideoController.index/3
       (rumbl) lib/rumbl_web/controllers/video_controller.ex:1: RumblWeb.VideoController.action/2
       (rumbl) lib/rumbl_web/controllers/video_controller.ex:1: RumblWeb.VideoController.phoenix_controller_pipeline/2
       (phoenix) lib/phoenix/router.ex:352: Phoenix.Router.__call__/2
       (rumbl) lib/rumbl_web/endpoint.ex:1: RumblWeb.Endpoint.plug_builder_call/2
       (rumbl) lib/rumbl_web/endpoint.ex:1: RumblWeb.Endpoint.call/2
       (phoenix) lib/phoenix/test/conn_test.ex:225: Phoenix.ConnTest.dispatch/5
       test/rumbl_web/controllers/video_controller_test.exs:7: (test)


Finished in 0.2 seconds
4 tests, 1 failure

我的回购：https://github.com/zervis/rumbl

Answer 1

当前没有用户登录，因此 Multimedia.list_user_videos/1 使用 nil 调用并且没有这样的子句处理 nil（它只需要用户结构。）

我相信 videos 资源应该像 manage 一样通过 :authenticate_user 插件。

Answer 2

我在这里找到了答案：

https://harfangk.github.io/2016/10/09/programming-phoenix-example-code-issues.html

如果“要求对所有操作进行用户身份验证”测试失败，那么您很可能犯了与我类似的错误。检查你的 rumbl/web/router.ex，看看它是否像这样。

scope "/", Rumbl do
  pipe_through :browser # Use the default browser stack

  resources "/videos", VideoController
  resources "/users", UserController, only: [:index, :show, :new, :create]
  resources "/session", SessionController, only: [:new, :create, :delete]
  get "/", PageController, :index
end

scope "/manage", Rumbl do
  pipe_through [:browser, :authenticate_user]

  resources "/videos", VideoController
end

删除行资源“videos”，范围“/”中的 VideoController，Rumbl do … 结束块。您可能误读了生成资源第 6 章（PDF 第 92-93 页）中资源生成的输出结果，并将其理解为将资源“/videos”、VideoController 添加到 rumbl/web/router.ex.[=12= 的指令]

注意：在最新一本书中，'misread' 部分位于生成 Web 界面，第 103 页。

正在阅读一本书 "Programming Phoenix >= 1.4"，卡在了 "Testing Logged-Out Users"

Following a book "Programming Phoenix >= 1.4", got stuck at "Testing Logged-Out Users"

elixir

phoenix-framework