I noticed when trying to run tests after installing hologram that I get the following error:

could not read file /_build/test/lib/hologram/priv/page_digest.plt": no such file or directory

I implemented a workaround that involves adding the creation of a stubbed page_digest file when using the mix test alias which does this:

  def create_hologram_stub(_args) do
    path = "_build/test/lib/hologram/priv"
    File.mkdir_p!(path)

    plt_file = Path.join(path, "page_digest.plt")

    unless File.exists?(plt_file) do
      File.write!(plt_file, :erlang.term_to_binary(%{}))
    end
  end

It solves the problem, but sure seems hacky. Is there a proper way to address this? Thanks!