stevenbeales / mental-test

class CsvSource

  def initialize(file, options)

    @file = file

    @options = options

  end

  def each

    CSV.foreach(@file, @options) do |row|

      yield row.to_hash

    end

  end

  # returns an array of arrays containing file contents

  def read

    @arrays = CSV.read(@file)

  end

  # returns a line delimited single string

  def to_s

    read unless @arrays

    @arrays.map(&:join).join("\n")

  end

end