# File test/test_line.rb, line 14
  def test_one_value
    g = Gruff::Line.new
    g.title = "One Value"
    g.labels = {
      0 => '1', 
      1 => '2'
    }
    g.data('one', 1)

    g.write("test/output/line_one_value.png")
  end