如何使用Devise和rspec测试Rails3引擎

Question

我正在开发一个依赖于Devise Gem的Rails引擎.我的引擎本身也是一个宝石,我需要为那个东西编写测试.为此我做了很多关于如何从gem内部测试引擎的读数,我进入了以下设置:

my_engine
 +- app    # my engine stuff
 +- config # my engine stuff
 +- Gemfile
 +- lib    # my engine stuff
 +- public # my engine stuff
 +- spec
     +- controllers    # controller tests
     +- models         # model tests
     +- dummy          # a dummy application that is using the 'my_engine/Gemfile' 
     +- spec_helper.rb # the spec helper that boots the dummy app

在我加入Devise gem之前,我可以编写测试并运行它们

rake spec

现在我有了Devise gem和这样的用户模型

class Manager::User < ActiveRecord::Base
    devise :database_authenticatable, :registerable, # ...
end

并且我的测试失败指向用户类和设计调用.

`method_missing': undefined method `devise'

所以现在我尝试调查错误,并找出如何使用设计和我的引擎一起启动虚拟应用程序.规范助手看起来像这样

# my_engine/spec/spec_helper.rb#
ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../dummy/config/environment.rb",  __FILE__) # boots the dummy app and fails
# more rspec stuff gies here

evnironment.rb

# my_engine/spec/dummy/config/environment.rb
# Load the rails application
require File.expand_path('../application', __FILE__)

# Initialize the rails application
Dummy::Application.initialize!

application.rb

# my_engine/spec/dummy/config/application.rb
require File.expand_path('../boot', __FILE__)
require 'rails/all'
Bundler.require(:default, Rails.env) if defined?(Bundler)
# Dummy::Application definition follows here (the common stuff)

boot.rb

# my_engine/spec/dummy/config/boot.rb
require 'rubygems'
# Loads the gemfile from 'my_engine/Gemfile'
gemfile = File.expand_path('../../../../Gemfile', __FILE__)

begin
  ENV['BUNDLE_GEMFILE'] = gemfile
  require 'bundler'
  Bundler.setup
rescue Bundler::GemNotFound => e
  STDERR.puts e.message
  STDERR.puts "Try running `bundle install`."
  exit!
end if File.exist?(gemfile)

宝石文件

# my_engine/Gemfile
source :gemcutter

gem 'rails', '3.0.3'
gem 'rake'

gem 'devise', '>=1.2.rc'
gem 'declarative_authorization', '0.5.2'

group :test do
  gem "cucumber"
  gem "cucumber-rails"
  gem "database_cleaner"
  gem "capybara", ">= 0.4.0"
  gem "capybara-envjs"
  gem "culerity"
  gem "webrat"
  gem "rspec-rails", ">= 2.4.0"
  gem "jeweler"
end

我也试过这样要求我的引擎

gem "my_engine", :path => "./"

Gemfile和gem都被加载(Bundler.setup贯穿,Devise常量可用).
现在我创建了一个使用my_engine gem的外部应用程序.当我从我的引擎复制测试并运行它们时,它们都会通过.

有什么我想念的吗？也许有更好的方法来为引擎编写测试？

Answer 1

真是太遗憾了，我忘记将设计初始化程序添加到虚拟应用程序中。不知何故，我为我的外部应用程序考虑了这一点。使用初始化程序，一切都可以完美运行。