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

require 'helper'

class TestChartGradient03 < Minitest::Test
  def setup
    setup_dir_var
  end

  def teardown
    @tempfile.close(true)
  end

  def test_chart_gradient03
    @xlsx = 'chart_gradient03.xlsx'
    workbook   = WriteXLSX.new(@io)
    worksheet  = workbook.add_worksheet
    chart      = workbook.add_chart(type: 'column', embedded: 1)

    # For testing, copy the randomly generated axis ids in the target xls file.
    chart.instance_variable_set(:@axis_ids, [61363712, 61365248])

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

    worksheet.write('A1', data)

    chart.add_series(
      values:   '=Sheet1!$A$1:$A$5',
      gradient: {
        colors:    ['#DDEBCF', '#9CB86E', '#156B13'],
        positions: [0,         40,        100]
      }
    )

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

    worksheet.insert_chart('E9',  chart)

    workbook.close
    compare_for_regression
  end
end
