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: discount_generator_test.rb
    path of file: ./repos/workarea/core/test/generators/workarea
    
    the code of the file until where you have to start completion: require 'test_helper'
require 'generators/workarea/discount/discount_generator'

module Workarea
  class DiscountGeneratorTest < GeneratorTest
    tests Workarea::DiscountGenerator
    desti
    
    def test_view_model
      assert_file 'app/view_models/workarea/admin/discounts/free_plumbus_view_model.rb' do |test|
        assert_match('class FreePlumbusViewModel', test)
      end

      assert_file 'test/view_models/workarea/admin/discounts/free_plumbus_view_model_test.rb' do |test|
        assert_match('class FreePlumbusViewModelTest', test)
      end
    end