# -*- coding: utf-8 -*-
require 'helper'

class TestRegressionChartBlank04 < Test::Unit::TestCase
  def setup
    setup_dir_var
  end

  def teardown
    File.delete(@xlsx) if File.exist?(@xlsx)
  end

  def test_chart_blank04
    @xlsx = 'chart_blank04.xlsx'
    workbook  = WriteXLSX.new(@xlsx)
    worksheet = workbook.add_worksheet
    chart     = workbook.add_chart(:type => 'line', :embedded => 1)

    # For testing, copy the randomly generated axis ids in the target xlsx file.
    chart.instance_variable_set(:@axis_ids, [42268928, 42990208])

    data = [
            [1, 2, nil,  4,  5],
            [2, 4, nil,  8, 10],
            [3, 6, nil, 12, 15]
           ]

    worksheet.write('A1', data)

    chart.add_series(:values => '=Sheet1!$A$1:$A$5')
    chart.add_series(:values => '=Sheet1!$B$1:$B$5')
    chart.add_series(:values => '=Sheet1!$C$1:$C$5')

    chart.show_blanks_as('span')

    worksheet.insert_chart('E9', chart)

    workbook.close
    compare_xlsx_for_regression(File.join(@regression_output, @xlsx), @xlsx)
  end
end