devise 和 rspec-rails - 如何在请求类型规范中登录用户(用类型 : :request)? 标记的规范

Question

环境

Rails 4.2.0
ruby-2.2.1 [ x86_64 ]
devise         3.4.1
rspec-core  3.2.2
rspec-rails   3.2.1

在我的/spec/rails_helper.rb 我已包含 设计 标记为 type: :controller 的规范文件的助手和 type: :request
规范/rails_helper.rb

ActiveRecord::Migration.maintain_test_schema!

RSpec.configure do |config|
  # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
  config.fixture_path = "#{::Rails.root}/spec/fixtures"

  # 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 = false

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

  config.before(:suite) do
    begin
      DatabaseCleaner.start
      FactoryGirl.lint
    ensure
      DatabaseCleaner.clean
    end
  end

  config.around(:each) do |example|
    DatabaseCleaner.cleaning do
      example.run # ==================> L-60
    end
  end

  config.include FactoryGirl::Syntax::Methods

  # RSpec Rails can automatically mix in different behaviours to your tests
  # based on their file location, for example enabling you to call `get` and
  # `post` in specs under `spec/controllers`.
  #
  # You can disable this behaviour by removing the line below, and instead
  # explicitly tag your specs with their type, e.g.:
  #
  #     RSpec.describe UsersController, :type => :controller do
  #       # ...
  #     end
  #
  # The different available types are documented in the features, such as in
  # https://relishapp.com/rspec/rspec-rails/docs
  config.infer_spec_type_from_file_location!

  config.include Devise::TestHelpers, type: :controller
  config.include Devise::TestHelpers, type: :request

end

有了该配置，type: controller规范运行良好。但是在运行 type: request 时我收到以下错误:

 Failure/Error: Unable to find matching line from backtrace
 NoMethodError:
   undefined method `env' for nil:NilClass
 # /home/.rvm/gems/ruby-2.2.1@myapp/gems/devise-3.4.1/lib/devise/test_helpers.rb:24:in `setup_controller_for_warden'
 # ./spec/rails_helper.rb:60:in `block (3 levels) in <top (required)>'
 # /home/.rvm/gems/ruby-2.2.1@simplyhomeapp/gems/database_cleaner-1.4.1/lib/database_cleaner/generic/base.rb:15:in `cleaning'
 # /home/.rvm/gems/ruby-2.2.1@simplyhomeapp/gems/database_cleaner-1.4.1/lib/database_cleaner/base.rb:92:in `cleaning'
 # /home/.rvm/gems/ruby-2.2.1@simplyhomeapp/gems/database_cleaner-1.4.1/lib/database_cleaner/configuration.rb:86:in `block (2 levels) in cleaning'
 # /home/.rvm/gems/ruby-2.2.1@simplyhomeapp/gems/database_cleaner-1.4.1/lib/database_cleaner/configuration.rb:87:in `call'
 # /home/.rvm/gems/ruby-2.2.1@simplyhomeapp/gems/database_cleaner-1.4.1/lib/database_cleaner/configuration.rb:87:in `cleaning'
 # ./spec/rails_helper.rb:59:in `block (2 levels) in <top (required)>'

https://github.com/plataformatec/devise/blob/master/lib/devise/test_helpers.rb#L24正在关注

def setup_controller_for_warden #:nodoc:
  @request.env['action_controller.instance'] = @controller  # ==================> L-24
end

我知道 @request 实例不适用于 :request 类型规范，因此会出现错误。

使用 Devise 时，是否有任何帮助程序可用于在 :request type specs 中登录用户？

我发现了一个类似的问题 https://github.com/plataformatec/devise/issues/1114 , reply建议如下:

If you're doing integration tests, make sure to sign in your user in the tradicional way, by filling the sign in form and submitting.

但我想绕过需要登录用户的规范的实际登录。

谢谢。

Answer 1

虽然这里的流行答案(也复制在 Devise wiki 上)是可以的，但最简单的方法是:

规范/rails_helper.rb

RSpec.configure do |config|
  # ...
  config.include Devise::Test::IntegrationHelpers, type: :request
end

只需使用 sign_in在您的请求规范中。这相当于声明 include Devise::Test::IntegrationHelpers在系统/功能规范或 Rails 系统/ Controller 测试中。

引用

Devise wiki: How to sign in and out a user in request type specs - Simple approach