defmodule Hobbes.FuzzUtils do
  @spec validate_opts(keyword, [atom | {atom, term}]) :: map
  def validate_opts(opts, expected) do
    Map.new(expected, fn
      {key, default} ->
        {key, Keyword.get(opts, key, default)}
      key ->
        case Keyword.fetch(opts, key) do
          {:ok, value} -> {key, value}
          :error -> raise "Key #{inspect(key)} was not found in #{inspect(opts)}"
        end
    end)
  end
end