email_test.exs

defmodule Acme.EmailTest do
  use ExUnit.Case
  alias Acme.Models.User

  test "welcome email" do
    user = %User{first_name: "John", email: "person@example.com"}

    email = Acme.Email.welcome_user(user)

    assert email.to == user
    assert email.subject == "Welcome to Acme Products"
  end
  
  test "welcome email for active user" do
    user = %User{first_name: "John", email: "person@example.com", state: "ACTIVE"}

    email = Acme.Email.welcome_user(user)

    assert email.to == user
    assert email.subject == "Welcome to Acme Products"
  end
  
  test "welcome email for inactive user raises" do
    user = %User{first_name: "John", email: "person@example.com", state: "INACTIVE"}

    assert_raise FunctionClauseError, fn -> Acme.Email.welcome_user(user) end
  end
end