# -*- coding: utf-8 -*-

require 'helper'

class TestRegressionChartFormat11 < Minitest::Test
  def setup
    setup_dir_var
  end

  def teardown
    @tempfile.close(true)
  end

  def test_chart_format11
    @xlsx = 'chart_format11.xlsx'
    workbook    = WriteXLSX.new(@io)
    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, [50664576, 50666496])

    data = [
      [1, 2, 3, 4,  5],
      [2, 4, 6, 8,  10],
      [3, 6, 9, 12, 15]
    ]

    worksheet.write('A1', data)

    chart.add_series(
      categories: '=Sheet1!$A$1:$A$5',
      values:     '=Sheet1!$B$1:$B$5',
      trendline:  {
        type:     'polynomial',
        name:     'My trend name',
        order:    2,
        forward:  0.5,
        backward: 0.5,
        line:     {
          color:     'red',
          width:     1,
          dash_type: 'long_dash'
        }
      }
    )
    chart.add_series(
      categories: '=Sheet1!$A$1:$A$5',
      values:     '=Sheet1!$C$1:$C$5'
    )

    worksheet.insert_chart('E9', chart)

    workbook.close
    compare_for_regression(
      nil,
      {
        'xl/charts/chart1.xml' => ['<c:pageMargins']
      }
    )
  end
end
