lasseebert

$ mix test test/contexts                           
.

Finished in 0.05 seconds
1 test, 0 failures

Randomized with seed 163288

lasseebert

$ mix test              
...

  1) test inviting a user responds with the new user (MyApp.UserController.InviteTest)
     test/controllers/user_controller/invite_test.exs:4
     ** (FunctionClauseError) no function clause matching in MyApp.Users.Invite.call/1
     stacktrace:
       (my_app) lib/my_app/contexts/users/invite.ex:8: MyApp.Users.Invite.call(%{"email" => "alice@example.com"})
       (my_app) web/controllers/user_controller.ex:5: MyApp.UserController.create/2
       (my_app) web/controllers/user_controller.ex:1: MyApp.UserController.action/2

lasseebert

$ mix test
Compiling 1 file (.ex)
warning: variable user is unused
  web/controllers/user_controller.ex:6

....

  1) test inviting a user responds with the new user (MyApp.UserController.InviteTest)
     test/controllers/user_controller/invite_test.exs:4
     Expected truthy, got false

lasseebert

defmodule MyApp.UserController do
  use MyApp.Web, :controller

  def create(conn, params) do
    attrs = %{email: params["email"]}
    {:ok, user} = MyApp.Users.Invite.call(attrs)

    {:ok, body} = %{
      id: user.id,
      email: user.email

lasseebert

$ mix test
Compiling 1 file (.ex)
.....

Finished in 0.08 seconds
5 tests, 0 failures

Randomized with seed 174980

lasseebert

  test "invalid email gives a 400 response" do
    conn =
      build_conn
      |> post("/users", email: "Alice and Bob")

    body = conn |> response(400) |> Poison.decode!

    assert body["message"] == "email is invalid"
  end

lasseebert

  test "it handles invalid email" do
    {:error, :invalid_email} = Invite.call(%{email: "Alice and Bob"})
  end

lasseebert

  def call(%{email: email}) do
    with :ok <- validate_email(email) do
      email
      |> build_changeset
      |> create_user
    end
  end

  #...

lasseebert

defmodule MyApp.UserController do
  use MyApp.Web, :controller

  def create(conn, params) do
    attrs = %{email: params["email"]}

    case MyApp.Users.Invite.call(attrs) do
      {:ok, user} ->
        render_user(conn, user)
      {:error, :invalid_email} ->

lasseebert

defmodule MyApp.UserController do
  use MyApp.Web, :controller

  def create(conn, params) do
    attrs = %{email: params["email"]}

    case MyApp.Users.Invite.call(attrs) do
      {:ok, user} ->
        render_user(conn, user)
      {:error, :invalid_email} ->