Question

我使用rspec + capybara创建了几个测试。 tests code

当我用rspec运行它们时，它们全部通过

git:(master) ✗ rspec    
Rack::File headers parameter replaces cache_control after Rack 1.5.
WARNING:  there is already a transaction in progress
NOTICE:  there is no transaction in progress
.WARNING:  there is already a transaction in progress
NOTICE:  there is no transaction in progress
.WARNING:  there is already a transaction in progress
NOTICE:  there is no transaction in progress
.WARNING:  there is already a transaction in progress
NOTICE:  there is no transaction in progress
.WARNING:  there is already a transaction in progress
NOTICE:  there is no transaction in progress
.WARNING:  there is already a transaction in progress
NOTICE:  there is no transaction in progress
.WARNING:  there is already a transaction in progress
NOTICE:  there is no transaction in progress
.WARNING:  there is already a transaction in progress
NOTICE:  there is no transaction in progress
.

Finished in 32.54 seconds
8 examples, 0 failures

但是如果我使用警卫，一些人往往会失败（某些测试可能会失败，并且可能不会不时） Guard output

如何解释这种行为？它是如何修复的？

更新1
我已经使用gem 'database_cleaner'使用此配置：

config.before(:suite) do
    DatabaseCleaner.strategy = :transaction
    DatabaseCleaner.clean_with(:transaction)
  end

  config.before(:each) do
    DatabaseCleaner.start
  end

  config.after(:each) do
    DatabaseCleaner.clean
  end
  # If you're not using ActiveRecord, or you'd prefer not to run each of your
  # examples within a transaction, remove the following line or assign false
  # instead of true.
  config.use_transactional_fixtures = :transaction
  config.use_transactional_examples = true

更新2
更改了几个文件https://github.com/Asmmund/notes/commit/a5e0a43d6247bb8f937fb7e9dcc8d8cfa7bfc4ea

Answer 1

根据您编写测试的方式，Capybara使用Selenium驱动程序来运行它们。 Selenium与事务夹具不兼容，您应该将其设置为false。

通常，您应该尽量避免在Capybara（或大多数集成测试）中使用Fixtures。良好的集成测试应该最少依赖于灯具，而是在端到端流程中创建数据（例如，用户帐户应该通过模拟的应用内操作创建，即测试应该使用Capybara提交注册表单）。但奇怪的情况是不可避免的，你可能需要在数据库中添加一些数据。很多人为了这个而使用FactoryGirl这样的工厂，并取得了成功。

如果您的测试是selenium，那么您的数据库清理还需要使用截断，而不是事务策略。

查看本教程作为更深入的指南。

注意：为节省时间，在您的情况下，请从下到上阅读：

http://asciicasts.com/episodes/257-request-specs-and-capybara

当守卫在奔跑时，Rspec与水豚奇怪的行为

1 个答案: