使用javascript驱动程序运行RSpec/Capybara时的数据库超时

Question

我正在尝试使用javascript驱动程序(带Webkit或Poltergeist)使用一些RSpec示例与Capybara一起工作,但更新表时数据库存在锁定问题.以下是相关示例的一部分:

  scenario 'by changing the contract attributes', js: true do
    login_as @admin, scope: :user

    contract = Contract.create(number: '123',
                               start_at: Date.today,
                               end_at: Date.today + 1.month)

    visit "/contracts/#{contract.id}/edit"

我正在使用Devise并Warden::Test::Helpers登录.

运行RSpec需要一段时间,我得到的只是:

 Failure/Error: visit "/contracts/#{contract.id}/edit"
 Capybara::Driver::Webkit::WebkitInvalidResponseError:
   Unable to load URL: http://127.0.0.1:46520/contracts/1/edit

日志显示存在数据库锁定问题:

Started GET "/contracts/1/edit" for 127.0.0.1 at 2012-06-01 12:10:26 -0400
   (0.2ms)  BEGIN
   (51083.3ms)  UPDATE `users` SET `last_sign_in_at` = '2012-06-01 16:10:26', `current_sign_in_at` = '2012-06-01 16:10:26', `last_sign_in_ip` = '127.0.0.1', `current_sign_in_ip` = '127.0.0.1', `sign_in_count` = 1, `updated_at` = '2012-06-01 16:10:26' WHERE `users`.`id` = 1
Mysql2::Error: Lock wait timeout exceeded; try restarting transaction: UPDATE `users` SET `last_sign_in_at` = '2012-06-01 16:10:26', `current_sign_in_at` = '2012-06-01 16:10:26', `last_sign_in_ip` = '127.0.0.1', `current_sign_in_ip` = '127.0.0.1', `sign_in_count` = 1, `updated_at` = '2012-06-01 16:10:26' WHERE `users`.`id` = 1
   (0.8ms)  ROLLBACK

我尝试过很多东西(这个问题似乎与实际解决方案最接近:Capybara:js => true导致测试失败)但没有任何效果,甚至摆脱了DatabaseCleaner.还有什么我可以尝试的吗？

编辑:这是spec_helper.rb所要求的文件:https://gist.github.com/2855631

Answer 1

这几乎可以肯定

config.use_transactional_fixtures = true

为了获得干净的数据,它试图在事务中运行您的示例.由于您正在使用数据库清理程序,因此您已经拥有此功能,因此将其设置为false,您应该很高兴.

https://www.relishapp.com/rspec/rspec-rails/docs/transactions