Elixir **(ArgumentError)未获取闪存,请调用fetch\u flash/2
在我的Phoenix应用程序中,我的插件如下所示:Elixir **(ArgumentError)未获取闪存,请调用fetch\u flash/2,elixir,phoenix-framework,plug,Elixir,Phoenix Framework,Plug,在我的Phoenix应用程序中,我的插件如下所示: defmodule MyApp.Web.Plugs.RequireAuth do import Plug.Conn import Phoenix.Controller import MyApp.Web.Router.Helpers def init(_options) do end def call(conn, _options) do if conn.assigns[:user] do conn
defmodule MyApp.Web.Plugs.RequireAuth do
import Plug.Conn
import Phoenix.Controller
import MyApp.Web.Router.Helpers
def init(_options) do
end
def call(conn, _options) do
if conn.assigns[:user] do
conn
else
conn
|> put_flash(:error, "You must be logged in")
|> redirect(to: project_path(conn, :index))
|> halt()
end
end
end
我为此编写了测试:
defmodule MyApp.Web.Plugs.RequireAuthTest do
use MyApp.Web.ConnCase
import MyApp.Web.Router.Helpers
alias MyApp.Web.Plugs.RequireAuth
alias MyApp.Accounts.User
setup do
conn = build_conn()
{:ok, conn: conn}
end
test "user is redirected when current user is not set", %{conn: conn} do
conn = RequireAuth.call(conn, %{})
assert redirected_to(conn) == project_path(conn, :index)
end
test "user is not redirected when current user is preset", %{conn: conn} do
conn = conn
|> assign(:user, %User{})
|> RequireAuth.call(%{})
assert conn.status != 302
end
end
当我运行我的规格时,它会返回以下错误:
1) test user is redirected when current user is not set (MyApp.Web.Plugs.RequireAuthTest)
test/lib/web/plugs/require_auth_test.exs:15
** (ArgumentError) flash not fetched, call fetch_flash/2
stacktrace:
(phoenix) lib/phoenix/controller.ex:1231: Phoenix.Controller.get_flash/1
(phoenix) lib/phoenix/controller.ex:1213: Phoenix.Controller.put_flash/3
(my_app) lib/my_app/web/plugs/require_auth.ex:14: MyApp.Web.Plugs.RequireAuth.call/2
test/lib/web/plugs/require_auth_test.exs:16: (test)
从插头上拔下此线路时:
put_flash(:error, "You must be logged in")
规格通过没有问题。我做错了什么?中描述了您的示例,解决方案是使用Phoenix.contest绕过路由器层 在您的测试套件中使用如下内容:
setup %{conn: conn} do
conn =
conn
|> bypass_through(Rumbl.Router, :browser)
|> get("/")
{:ok, %{conn: conn}}
end
它将为您提供有效的闪存和会话支持。中介绍了您的示例,解决方案是使用Phoenix.contest绕过路由器层 在您的测试套件中使用如下内容:
setup %{conn: conn} do
conn =
conn
|> bypass_through(Rumbl.Router, :browser)
|> get("/")
{:ok, %{conn: conn}}
end
它将为您提供有效的闪存和会话支持