AF
Ash Framework•4mo ago
aidalgol

Testing with AshAuthentication after upgrade

After upgrading ash_authentication_phoenix and ash_authentication to 2.10.0 and 2.9.2, this test helper function raises an error. 
  @doc """
  Logs in a user with `AshAuthentication` as the current user.
  """
  def log_in_user_as_subject(conn, user) do
    conn
    |> Phoenix.ConnTest.init_test_session(%{})
    |> AshAuthentication.Phoenix.Plug.store_in_session(user)
    |> Plug.Conn.assign(:current_user, user)
  end
  @doc """
  Logs in a user with `AshAuthentication` as the current user.
  """
  def log_in_user_as_subject(conn, user) do
    conn
    |> Phoenix.ConnTest.init_test_session(%{})
    |> AshAuthentication.Phoenix.Plug.store_in_session(user)
    |> Plug.Conn.assign(:current_user, user)
  end
     ** (KeyError) key :token not found in: %{}
     code: conn = log_in_user_as_subject(conn, user)
     stacktrace:
       (ash_authentication 4.9.2) lib/ash_authentication/plug/helpers.ex:18: AshAuthentication.Plug.Helpers.store_in_session/2
     ** (KeyError) key :token not found in: %{}
     code: conn = log_in_user_as_subject(conn, user)
     stacktrace:
       (ash_authentication 4.9.2) lib/ash_authentication/plug/helpers.ex:18: AshAuthentication.Plug.Helpers.store_in_session/2
Looks like it's because I'm creating users for test using Ash.Seed.seed!, so nothing is populating token. 
User
|> Ash.Seed.seed!(%{email: "bob@example.net", hashed_password: "..."})
User
|> Ash.Seed.seed!(%{email: "bob@example.net", hashed_password: "..."})
What would be a sensible fix here?
Solution:
🤔 You could generate a token and put it into __metadata__
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3 Replies
Solution
ZachDaniel
ZachDaniel•4mo ago
🤔 You could generate a token and put it into __metadata__
ZachDaniel
ZachDaniel•4mo ago
With AshAuthentication.Jwt.token_for_user
allenwyma
allenwyma•4mo ago
this works well: 
@doc """
      Logs in a user to a conn for testing.
      """
      @spec login_user(Plug.Conn.t(), App.Accounts.User.t()) :: Plug.Conn.t()
      def login_user(conn, user) do
        user =
          case Ash.Resource.get_metadata(user, :token) do
            nil ->
              {:ok, token, _claims} = AshAuthentication.Jwt.token_for_user(user)
              Ash.Resource.set_metadata(user, %{token: token})

            _token ->
              user
          end

        conn
        |> Phoenix.ConnTest.init_test_session(%{})
        |> AshAuthentication.Plug.Helpers.store_in_session(user)
      end
@doc """
      Logs in a user to a conn for testing.
      """
      @spec login_user(Plug.Conn.t(), App.Accounts.User.t()) :: Plug.Conn.t()
      def login_user(conn, user) do
        user =
          case Ash.Resource.get_metadata(user, :token) do
            nil ->
              {:ok, token, _claims} = AshAuthentication.Jwt.token_for_user(user)
              Ash.Resource.set_metadata(user, %{token: token})

            _token ->
              user
          end

        conn
        |> Phoenix.ConnTest.init_test_session(%{})
        |> AshAuthentication.Plug.Helpers.store_in_session(user)
      end

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