 defmodule Display do
   alias IO.ANSI
 
-  @current_dir File.cwd!
   @no_value :ex_unit_no_meaningful_value
   @progress_bar_length 30
 

  end

  def congratulate do
    Colours.green("\nYou have learned much. You must find your own path now.")
    |> IO.puts
  end

  def clear_screen do

  defp name(module), do: name(Atom.to_string(module))

  def show_failure(failure, module, name) do
    IO.puts(format(failure, module, name))
  end

  def format(failure, module, name) do
    """
    Now meditate upon #{format_module(module)}
    #{progress_bar(Tracker.summarize)}
    ----------------------------------------
    #{name}
    #{format_failure(failure)}
    """
  end

  def progress_bar(%{current: current, total: total}) do
