move dom target in selenium driver

gistfile1.txt

require 'test_helper'

class DragDropTest < ActionDispatch::IntegrationTest
  setup do
    Capybara.current_driver = Capybara.javascript_driver # :selenium by default
  end

  def test_drag_item_1_to_list_2
    visit '/drag_drop'
    element = page.find(:id, 'item_1')
    target  = page.find(:id, 'list_2')

    selenium_webdriver = page.driver.browser
    selenium_webdriver.mouse.down(element.native)
    selenium_webdriver.mouse.move_to(target.native, 0, 10)
    selenium_webdriver.mouse.up
    sleep 2
  end
end