You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: taxons_spec.rb
    path of file: ./repos/solidus/backend/spec/features/admin/products/edit
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require 'spec_helper'

describe "Product Display Order", type: :feature do
  st
    
    def assert_selected_taxons(taxons)
      # Regression test for https://github.com/spree/spree/issues/2139
      taxons.each do |taxon|
        expect(page).to have_css(".select2-search-choice", text: taxon.name)
      end

      expected_value = taxons.map(&:id).join(",")
      expect(page).to have_xpath("//*[@id = 'product_taxon_ids' and @value = '#{expected_value}']", visible: :all)
    end