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faker

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Faker is a pure Elixir library for generating fake data.

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faker lib faker random test.ex
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lib/faker/random/test.ex 

defmodule Faker.Random.Test do

  @moduledoc false



  def random_between(left, right) do

    set_seed(:ets.lookup(:seed_registry, self()))

    Enum.random(left..right)

  end



  def random_bytes(total) do

    set_seed(:ets.lookup(:seed_registry, self()))



    Stream.repeatedly(fn -> Enum.random(0..255) end)

    |> Enum.take(total)

    |> IO.iodata_to_binary()

  end



  def random_uniform do

    set_seed(:ets.lookup(:seed_registry, self()))

    :rand.uniform()

  end



  defp set_seed([]) do

    :rand.seed(:exsplus, {1, 1, 1})

    :ets.insert(:seed_registry, {self(), true})

  end



  defp set_seed(_) do

  end

end