cannery/test/support/fixtures/accounts_fixtures.ex

defmodule Cannery.AccountsFixtures do
  @moduledoc """
  This module defines test helpers for creating
  entities via the `Cannery.Accounts` context.
  """

  alias Cannery.Accounts

  def unique_user_email, do: "user#{System.unique_integer()}@example.com"
  def valid_user_password, do: "hello world!"

  @spec user_fixture() :: Accounts.User.t()
  @spec user_fixture(attrs :: map()) :: Accounts.User.t()
  def user_fixture(attrs \\ %{}) do
    {:ok, user} =
      attrs
      |> Enum.into(%{
        email: unique_user_email(),
        password: valid_user_password()
      })
      |> Accounts.register_user()

    user
  end

  def extract_user_token(fun) do
    {:ok, captured} = fun.(&"[TOKEN]#{&1}[TOKEN]")
    [_, token, _] = String.split(captured.body, "[TOKEN]")
    token
  end

  def valid_user_attributes(attrs \\ %{}) do
    Enum.into(attrs, %{
      email: unique_user_email(),
      password: valid_user_password()
    })
  end
end