Question

我测试套件中的所有211规格都正常通过......直到我从rails 3.2升级到rails 3.2.1。现在197我的规格失败了。大多数错误都有“错误的参数数量（0表示1）”错误，如下所述。

示例＃1：

class DocumentLibrary < ActiveRecord::Base
  extend FriendlyId
  friendly_id :title, :use => :slugged
  has_many :shelves, :dependent => :destroy
  has_many :documents, :through => :shelves
  validates :title, :presence => true, :uniqueness => true

  default_scope :order => :title
end

规格：

  it "can be shown on the company menu" do
    dl = FactoryGirl.create(:document_library, :title => 'Test', :menu => false, :company => true)
    dl.should be_valid
  end

失败：

   1) DocumentLibrary can be shown on the company menu
     Failure/Error: dl = FactoryGirl.create(:document_library, title: 'Test', menu: false, company: true)
     ArgumentError:
       wrong number of arguments (0 for 1)
     # ./spec/models/document_library_spec.rb:6:in `block (2 levels) in <top (required)>'

如果我在FactoryGirl.create行之前调用调试器，我得到：

/Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:252:
(rdb:1) c
/Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/activesupport-3.2.1/lib/active_support/core_ext/module/remove_method.rb:4: `' (NilClass)
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/example_group.rb:249:in `set_it_up'
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/example_group.rb:200:in `subclass'
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/example_group.rb:187:in `describe'
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/dsl.rb:18:in `describe'
    from /Users/Jason/code/rails/teamsite/spec/models/document_library_spec.rb:4:in `<top (required)>'
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `load'
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `block in load_spec_files'
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `map'
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `load_spec_files'
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/command_line.rb:22:in `run'
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:80:in `run_in_process'
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:69:in `run'
    from /Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:10:in `block in autorun'
/Users/Jason/.rvm/gems/ruby-1.9.3-p125/gems/activesupport-3.2.1/lib/active_support/core_ext/module/remove_method.rb:4:

示例＃2

class Album < ActiveRecord::Base
  belongs_to :photo_library

  validates :title, :presence => true
  validates :title, :uniqueness => {scope: :photo_library_id}
end

class PhotoLibrary < ActiveRecord::Base
  default_scope :order => :title
  has_many :albums, :dependent => :destroy

  validates :title, :presence => true
  validates :title, :uniqueness => true
end

规格：

  before :each do
    @photo_library = FactoryGirl.create(:photo_library, title: 'Products')
    login_admin
  end

  it "destroys an album" do
    3.times { FactoryGirl.create(:album, photo_library: @photo_library) }
    visit photo_library_path(@photo_library)
    find("h3").click_link 'Delete'
    find("#notice").should have_content("Album deleted successfully")
    Album.count.should eq 2
  end

失败：

1) Albums destroys an album
     Failure/Error: login_admin
     ArgumentError:
       wrong number of arguments (0 for 1)
     # ./app/controllers/sessions_controller.rb:8:in `create'
     # (eval):2:in `click_button'
     # ./spec/requests/albums_spec.rb:7:in `block (2 levels) in <top (required)>'

我的sessions_controller中的第8行是：

user = User.find_by_email(params[:email])

此时检查参数显示所有内容（包括：电子邮件）都应该存在。

对比示例＃3

FactoryGirl的这个规范很好：

  it "is unique within a library" do
    pl = FactoryGirl.create(:photo_library, title: 'Products')
    pl2 = FactoryGirl.create(:photo_library, title: 'Competitors')
    a = FactoryGirl.create(:album, title: 'Gold Series', photo_library: pl)
    na = Album.create(photo_library_id: pl.id, title: 'Gold Series')
    na.should_not be_valid
    na.title = 'Cyclone'
    na.should be_valid

    na = Album.create(photo_library_id: pl2.id, title: 'Gold Series')
    na.should be_valid
  end

工厂的定义如下：

  factory :document_library do
    sequence(:title) { |n| "Library Title#{n}" }
  end

  factory :photo_library do
    sequence(:title) { |n| "Photo Library Title#{n}" }
  end

  factory :album do
    sequence(:title) {|n| "Album#{n}"}
  end

如果我从DocumentLibrary模型中注释掉FriendlyId行，则示例＃1通过。我不知道为什么会有所作为。

但是，有些规格仍未通过。考虑以下模型（不使用FriendlyId）和3.2.1中的规范：

class DrawingLibrary < ActiveRecord::Base
  validates :title, :presence => true
  default_scope order: :title 
  has_many :drawings, :dependent => :destroy
end

 it "displays in alpha order" do
  FactoryGirl.create(:drawing_library, title: 'C')
  FactoryGirl.create(:drawing_library, title: 'B')
  FactoryGirl.create(:drawing_library, title: 'A')

  ts = ''

  DrawingLibrary.all.each do |draw_lib|
    ts += draw_lib.title
  end

  ts.should eq 'ABC'
end

1) DrawingLibrary displays in alpha order
     Failure/Error: DrawingLibrary.all.each do |draw_lib|
     ArgumentError:
       wrong number of arguments (0 for 1)
     # ./spec/models/drawing_library_spec.rb:19:in `block (2 levels) in <top (required)>'

结果：rspec spec / models / document_library_spec.rb --backtrace

 1) DocumentLibrary can be shown on the company menu
 Failure/Error: dl = FactoryGirl.create(:document_library, title: 'Test', menu: false, company: true)
 ArgumentError:
   wrong number of arguments (0 for 1)
 # ./spec/models/document_library_spec.rb:6:in `block (2 levels) in <top (required)>'

我正在使用rvm和ruby 1.9.3，Rubygems是1.8.16。 Factory Girl是2.6.0，factory_girl_rails是1.7.0。 rspec-rails是2.8.1。

这是我目前所知道的：

降级回Rails 3.2.0会让一切恢复正常
升级到Edge Rails无法解决问题
运行边缘版本的rspec gems无法解决问题
应用程序在开发模式下正常运行并按预期运行。只有测试似乎受到影响。
降级为ruby 1.9.2无法解决问题
升级到ruby 1.9.3-p125无法解决问题
针对测试环境从MySQL更改为SQLite无法解决问题
将factory_girl_rails降级为1.6.0甚至1.5.0无法解决问题
使用Factory.create（...）代替Factory（...）无法解决问题
使用FactoryGirl.define（）和FactoryGirl.create（）无法解决问题
评论出FriendlyId的内容会使一些规范通过（见下文）
运行db：test：prepare（或db：reset，db：migrate）无法解决问题
将所有FactoryGirl定义/创建更改为一致无法解决问题
在新的rvm gemset下重新安装宝石（甚至完全重新安装rvm）无法解决问题
在Test / Unit和FactoryGirl中重写这些测试不会产生任何错误。所以FactoryGirl可能不是问题

有人能指出我的方向吗？或提供故障排除建议？

这是我的Gemfile：

source 'http://rubygems.org'

gem 'rails', '3.2.1'

gem 'mysql2'
gem 'dynamic_form'
gem 'friendly_id'

group :assets do
  gem 'sass-rails', "  ~> 3.2.3"
  gem 'coffee-rails', "~> 3.2.1"
  gem 'uglifier', '>= 1.0.3'
end

gem 'jquery-rails'
gem 'therubyracer'
gem 'bcrypt-ruby'
gem 'capistrano'
gem "paperclip", :git => "git://github.com/thoughtbot/paperclip.git"

group :test, :development do
  gem 'rspec-rails'
  gem 'launchy'
  gem 'ruby-debug19'
  gem 'database_cleaner'
  gem 'capybara-webkit'
  gem 'spork', '~> 0.9.0.rc'
  gem 'guard-spork'
end

group :development do
  gem 'fuubar'
  gem 'powder'
end

group :test do
  gem 'turn', :require => false
  gem 'capybara'
  gem 'factory_girl_rails'
  gem 'guard-rspec'
end

升级到Rails 3.2.1后，Gemfile.lock的唯一区别在于Rails核心库（没有更改测试宝石）。

Answer 1

您可以尝试的第一件事（您没有根据列表）只是从测试数据库中删除所有数据并“重置”您的测试环境。出于某种原因，您的数据库可能充满了测试数据，序列无法运行和/或尚未运行迁移。

$ rake db:test:prepare

如果这不能解决问题，那么我首先要使我的FactoryGirl定义和调用更加一致 - 不要粗鲁，但我想我在你发布的代码中看到了3-4种不同的变化。它还使得从跟踪中解密神秘错误消息变得更加困难 - 因为您与调用不一致。

最佳做法定义：

FactoryGirl.define do
  factory :document_library do
    sequence(:title) { |n| "Title #{n}" }
  end
end

建立/创建最佳实践：

document_library = FactoryGirl.create(:document_library, {
  title: 'A',
  visible: false
})
# or
document_library = FactoryGirl.build(:document_library)

我知道你写的它在Rails 3.2.0中运行，并且一切都是Rails 3.2.1错误，但是可能只有3.2.1 MIXED与你正在使用RSpec和FactoryGirls的版本有关。根据{{3}}，Rails 3.2.1中的ActiveRecord模块没有任何变化。

Answer 2

这可能不是根本原因，但由于您的错误提示FactoryGirl，我首先将所有工厂（及其创建）转换为另一种（新的/推荐的（？））语法，即FactoryGirl.define do ...和doclib = FactoryGirl.create(:document_library ...。可能是Factory在运行规范时会有所不同（与控制台中的规格不同）。

Answer 3

它可能是模型中过时的语法。取代

default_scope order: :title

带

 default_scope :order => :title

如果我从DocumentLibrary模型中注释掉FriendlyId行，则上面的规范通过。我不知道为什么会有所作为

通过此修改，default_scope order: :title成为模型的最后一行

Answer 4

在您提到的第一个规范中，您可以将以下内容添加到控制器文件中：

def create
  puts params.inspect
  user = User.find_by_email(params[:email])
end

我认为你没有从params获得任何信息。由于这是规范中的login_admin函数，因此您可能正在使用before(:each)或let - 块来登录您的大多数规范，因此这可能是问题的根源。

现在注意到它：）

Answer 5

也许你应该尝试创建一个新的gemset，以防某些宝石相互干扰。

$ rvm use 1.9.3@{unique-gemset-name-here} --create清洁宝石
$ bundle
$ rake spec

正如我过去两天一直关注这一点，我开始考虑你是否应该暂时放弃3.2.1升级（鉴于这是一个高优先级项目）。为您的客户和/或用户获取价值，而不是花时间在3.2.1上。有人会在某个时候解决这个问题然后你可以继续进行升级。

为什么升级到Rails 3.2.1会导致多个Rspec测试失败？

5 个答案: