Can't use module methods within tests.

[samdoiron]

It is often helpful to use module methods within a test, to avoid repetition.

Eg:

defmodule SomeTest do
  fact "can add quotes" do
    quotify some_string |> "\"#{some_string}\""
  end

  def some_string, do: "some string"
end

This is possible using ExUnit, but in Amrita it generates an unused warning for some_string and fails with undefined function some_string/0