ruby-on-rails - 用于测试的未定义方法 `users'

Question

我正在尝试编写一个简单的测试，但是当我在测试函数中使用它时，我的应用程序没有检测到“用户”关键字:
post_controller_test.rb :

require 'test_helper'

class PostsControllerTest < ActionController::TestCase
  # test "the truth" do
  #   assert true
  # end

  test "should fetch facebook post" do
    sign_in users(:one)
    get(:save_posts_from_facebook_page,{'id'=>'my_id'},{'access_token'=>Rails.application.secrets.fb_access_token})
    assert_response :success
  end
end 

test_helper.rb :

ENV['RAILS_ENV'] ||= 'test'
require File.expand_path('../../config/environment', __FILE__)
require 'rails/test_help'

class ActiveSupport::TestCase
    include Devise::TestHelpers
  # Add more helper methods to be used by all tests here...
end

users.yml :

# Read about fixtures at http://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html

one:
  email: hello@testing.com
  encrypted_password: <%= Devise.bcrypt(User,'password') %>
  links: 
  causes: 

two:
  email: MyString
  password: MyString
  links: 
  causes: 

rake/错误的输出:

Run options: --seed 42684

# Running:

E

Finished in 0.010275s, 97.3279 runs/s, 0.0000 assertions/s.

  1) Error:
PostsControllerTest#test_should_fetch_facebook_post:
NoMethodError: undefined method `users' for #<PostsControllerTest:0x000001042152f0>
    test/controllers/posts_controller_test.rb:9:in `block in <class:PostsControllerTest>'

1 runs, 0 assertions, 0 failures, 1 errors, 0 skips

更新:
请注意，我使用的是 MongoId。

当我将 'fixtures :all' 添加到我的 test_helper.rb 时，我得到:

rake

rake aborted!
NoMethodError: undefined method `fixtures' for ActiveSupport::TestCase:Class
/Users/gautambajaj/My Stuff/FreeFromBorders/f2b_website/test/test_helper.rb:7:in `<class:TestCase>'
/Users/gautambajaj/My Stuff/FreeFromBorders/f2b_website/test/test_helper.rb:5:in `<top (required)>'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in `require'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in `block in require'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:240:in `load_dependency'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in `require'
/Users/gautambajaj/My Stuff/FreeFromBorders/f2b_website/test/controllers/posts_controller_test.rb:1:in `<top (required)>'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in `require'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in `block in require'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:240:in `load_dependency'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in `require'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/railties-4.2.1/lib/rails/test_unit/sub_test_task.rb:114:in `block (3 levels) in define'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/railties-4.2.1/lib/rails/test_unit/sub_test_task.rb:114:in `each'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/railties-4.2.1/lib/rails/test_unit/sub_test_task.rb:114:in `block (2 levels) in define'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/railties-4.2.1/lib/rails/test_unit/sub_test_task.rb:113:in `each'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/railties-4.2.1/lib/rails/test_unit/sub_test_task.rb:113:in `block in define'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/railties-4.2.1/lib/rails/test_unit/sub_test_task.rb:20:in `invoke_rake_task'
/Users/gautambajaj/.rvm/gems/ruby-2.1.2/gems/railties-4.2.1/lib/rails/test_unit/testing.rake:8:in `block in <top (required)>'
Tasks: TOP => test:run
(See full trace by running task with --trace)

Answer 1

在您的 test_helper.rb文件，你需要添加 fixtures :all :

class ActiveSupport::TestCase
  # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
  fixtures :all
  # rest of the codes in this file
end

一旦您在 test_helper.rb 中添加该行文件如上所示，您的测试将通过。

更新

正如 Sergio Tulentsev 在评论中提到的，Mongodb 不支持事务，因此在您的情况下不能使用事务性装置。看看 this answer这说明了这一点，还有这个 google group discussion以及。

我建议您使用 factory_girl相反，它支持 mongoid 并且非常棒。