Testing Rake::Task with multiple arguments in minitest

transfer_data_test.rb

require 'test_helper'
require 'rake'

class TransferDataTest < ActiveSupport::TestCase
  def setup
    Rails.application.load_tasks if Rake::Task.tasks.empty?
    Rake::Task['proctoru:db:transfer_data'].reenable
  end
  
  def test_transfer_articles
    args = set_args({ type: "articles", batch: 100000 })
    article = articles(:one)
    assert article.author_id_new.blank?
    Rake::Task['proctoru:db:transfer_data'].execute(args)
    article.reload
    assert article.author_id_new.present?
    assert article.author_id_new == article.article_id.to_i
  end
  
  def test_transfer_authors
    args = set_args({ type: "articles", batch: 100000 })
    authors = authors(:one)
    assert authors.group_id_new.blank?
    Rake::Task['proctoru:db:transfer_data'].execute(args)
    authors.reload
    assert authors.group_id_new.present?
    assert authors.group_id_new == authors.group_id.to_i
  end
  
  def set_args(args_hash)
    Rake::TaskArguments.new(args_hash.keys, args_hash.values)
  end
end