如何测试JavaScript而不删除`test`数据库数据？ [英] How to test JavaScripts without to delete the `test` database data?

问题描述

我使用Ruby on Rails 3.2.2，cucumber-rails-1.3.0，rspec-rails-2.8.1和capybara-1.1.2。我想使用 Selenium 测试JavaScript，但不要删除 test 数据库数据每次我在我的终端窗口中运行 cucumber 命令行。也就是说，如果我声明一个像下面的功能：

 特性：... 
 
 @ javascript 
场景：... 
  

JavaScript测试符合预期。但是，在测试运行后， test 数据库数据被删除，我必须重新生成该数据库才能正确运行新测试。

我阅读了官方文档以及 ROOT_APP / features / support / env.rb 文件（似乎我安装了所有需要的Ruby gems - 下面有关我使用的Gemfile的更多信息），但我不明白如何避免删除数据库数据以及如何配置Cucumber和Capybara宝石，以便正确使用Selenium。

我应该做什么？ p>

注意我：我想做上述，因为我想有相同的 code>数据库数据，当我测试/运行方案。

种子数据在 test 数据库（我的应用程序需要该数据工作），我在 RAILS_ROOT_PATH / lib / tasks / cucumber中添加以下代码。 rake 文件，并从终端窗口运行 rake db：test：prepare 命令行。

 命名空间：db do 
命名空间：test do 
 task：prepare => ：environment do 
 Rake :: Task [db：seed]。invoke 
 end 
 end 
 end 
  

---

在 ROOT_APP / features / support / env.rb 文件我试图取消注释以下两个代码块（ BTW ：我从来没有改变原始文件自动生成的 cucumber-rails gem，所以它是默认的），但在运行测试后，它仍然会删除测试数据库数据。

 ＃before（'@ no-txn，@ selenium，@ culerity，@ celerity，@ javascript'）do 
＃＃{：except => [：widgets]}可能不会做你期望的这里
＃＃作为tCucumber :: Rails :: Database.javascript_strategy重写
＃＃这个设置。 
＃DatabaseCleaner.strategy =：truncation 
＃end 
＃
＃Before（'〜@ no-txn'，'〜@ selenium'，'〜@ culerity' 〜@ celerity'，'〜@ javascript'）do 
＃DatabaseCleaner.strategy =：transaction 
＃end 
  

---

Gemfile节选：

  ：test do 
 gemrspec-rails
 end 
 
 group：test do 
 gem'cucumber-rails'
 gem'database_cleaner'
 gem'capybara'
 end 
  

解决方案

我遇到了同样的问题，并设法通过更改 ROOT_APP / features / support / env.rb

$下面的行修复它

来自

  Cucumber :: Rails :: Database.javascript_strategy =：truncation 
  

至

  Cucumber :: Rails :: Database.javascript_strategy =：transaction 
  

希望这有助于...

I am using Ruby on Rails 3.2.2, cucumber-rails-1.3.0, rspec-rails-2.8.1 and capybara-1.1.2. I would like to use Selenium in order to test JavaScripts, but without to delete the test database data each time I run the cucumber command line in my Terminal window. That is, if I state a feature like the following:

Feature: ...

  @javascript
  Scenario: ...

JavaScript is tested as well as expected. However, after the test has run, the test database data is deleted and I must seed again that database in order to properly run new tests.

I read the Official Documentation and the text present in the ROOT_APP/features/support/env.rb file (it seems that I installed all required Ruby gems - see below for more information about the Gemfile that I am using) but I didn't understand how to avoid to delete the database data and how to configure Cucumber and Capybara gems so to properly work with Selenium.

What should I make?

Note I: I would like to make the above because I would like to have the same test database data when I "test"/"run" Scenarios.

Note II: In order to seed data in the test database (my application needs that data to work), I add the following code in the RAILS_ROOT_PATH/lib/tasks/cucumber.rake file and I run the rake db:test:prepare command line from the Terminal window.

namespace :db do
  namespace :test do
    task :prepare => :environment do
      Rake::Task["db:seed"].invoke
    end
  end
end

---

In the ROOT_APP/features/support/env.rb file I tried to uncomment one and both of the following blocks of code (BTW: I never changed the original file auto-generated by the cucumber-rails gem, so it is the default one), but after running tests it still deletes the test database data.

#   Before('@no-txn,@selenium,@culerity,@celerity,@javascript') do
#     # { :except => [:widgets] } may not do what you expect here
#     # as tCucumber::Rails::Database.javascript_strategy overrides
#     # this setting.
#     DatabaseCleaner.strategy = :truncation
#   end
#
#   Before('~@no-txn', '~@selenium', '~@culerity', '~@celerity', '~@javascript') do
#     DatabaseCleaner.strategy = :transaction
#   end

---

Gemfile excerpt:

group :development, :test do
  gem "rspec-rails"
end

group :test do
  gem 'cucumber-rails'
  gem 'database_cleaner'
  gem 'capybara'
end

解决方案

I ran into this same problem, and managed to fix it by changing the following line in ROOT_APP/features/support/env.rb

from

Cucumber::Rails::Database.javascript_strategy = :truncation

to

Cucumber::Rails::Database.javascript_strategy = :transaction

Hope this helps...

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