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mix_test_watch

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Automatically run tests when files change

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mix_test_watch lib mix_test_watch runner.ex
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lib/mix_test_watch/runner.ex 

defmodule MixTestWatch.Runner do

  @moduledoc false



  alias MixTestWatch.Config



  #

  # Behaviour specification

  #



  @callback run(Config.t()) :: :ok



  #

  # Public API

  #



  @doc """

  Run tests using the runner from the config.

  """

  def run(%Config{} = config) do

    :ok = maybe_clear_terminal(config)

    IO.puts("\nRunning tests...")

    :ok = maybe_print_timestamp(config)

    :ok = config.runner.run(config)

    :ok

  end



  #

  # Internal functions

  #



  defp maybe_clear_terminal(%{clear: false}), do: :ok

  defp maybe_clear_terminal(%{clear: true}), do: :ok = IO.puts(IO.ANSI.clear() <> IO.ANSI.home())



  defp maybe_print_timestamp(%{timestamp: false}), do: :ok



  defp maybe_print_timestamp(%{timestamp: true}) do

    :ok =

      DateTime.utc_now()

      |> DateTime.to_string()

      |> IO.puts()

  end

end