defmodule MockExampleWeb.ExampleControllerTest do
  use MockExampleWeb.ConnCase

  import Mock

  test "MockExamplet.ExampleClient must be ever called", %{conn: conn} do
    with_mock MockExample.ExampleClient, [get_example_data: fn -> {:ok, %{data: "sou um novo retorno"}} end] do
      response =
        conn
        |> get(example_path(conn, :index))

      assert called MockExample.ExampleClient.get_example_data() # <-----
    end
  end
end