Protocol consolidation vs mix test --no-compile

rpg.ex

# test/rpg_test.exs

defmodule RPGTest do
  use ExUnit.Case

  alias RPG.{Edible, LoafOfBread}

  describe "LoafOfBread" do
    test "implements the Edible protocol" do
      {:consolidated, modules} = Edible.__protocol__(:impls)
      assert LoafOfBread in modules
    end
  end
end

# lib/rpg.ex

defmodule RPG do
  defmodule Character do
    defstruct health: 100, mana: 0
  end

  defmodule LoafOfBread do
    defstruct []
  end

  defprotocol Edible do
    def eat(item, character)
  end

  defimpl Edible, for: LoafOfBread do
    def eat(_loaf_of_bread, %Character{} = character) do
      updated_character = %{character | health: character.health + 5}
      {nil, updated_character}
    end
  end
end