为什么升级到Rails 3.2.1会导致多个Rspec测试失败？
为什么升级到Rails 3.2.1会导致多个Rspec测试失败？
提问于 2012-02-13 20:44:59
我测试套件中的所有211个规范都通过了fine...until，我从rails 3.2升级到rails 3.2.1。现在，197我的规格失败与错误。这些错误中的大多数都有下面描述的“错误的参数数(0对1)”错误。
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在以下方面失败：
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)>'如果在FactoryGirl.create行之前调用调试器，则得到：
/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在以下方面失败：
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])在这一点上检查params显示了一切(包括:电子邮件)都是它应该存在的。
对比示例#3
使用FactoryGirl的这个规范传递得很好：
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如果我注释掉了FriendlyId模型中的DocumentLibrary行，示例1就会通过。我不知道这有什么区别。
然而，一些规格仍然不能通过。考虑以下模型(它不使用FriendlyId)和3.2.1中的错误规范：
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规范/模型/document_library_spec.rb-回溯
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)>'我使用rvm和ruby 1.9.3，Rubygems在1.8.16。“工厂女孩”是2.6.0，factory_girl_rails是1.7.0。rspec-rails为2.8.1。
，我到目前为止知道的是：
- 降级回Rails 3.2.0使一切恢复正常
- 升级到边缘Rails并不能解决问题
- rspec宝石的边缘版本无法解决这个问题
- 该应用程序运行正常，并按预期在开发模式下运行。似乎只有测试会受到影响。
- 降级到卢比1.9.2并不能解决问题
- 升级到ruby 1.9.3-p 125并不能解决这个问题
- 为测试环境从MySQL更改为SQLite并不能解决问题
- 将factory_girl_rails降级到1.6.0甚至1.5.0并不能解决问题
- 使用Factory.create(.)代替工厂(.)解决不了问题
- 使用FactoryGirl.define()和FactoryGirl.create()并不能解决问题
- 注释掉FriendlyId的内容会使一些规范通过(见下文)
- 运行db:test:准备(或db:reset，db:migrate)没有解决问题
- 将所有FactoryGirl定义/创建更改为一致并不能解决问题
- 在新的rvm宝石集下重新安装gems (甚至完全重新安装rvm )并不能解决这个问题
- 在Test/Unit和FactoryGirl中重写这些测试不会产生错误。所以FactoryGirl可能不是问题所在
，有人能指点我这个方向吗？或者提供故障排除建议？
这是我的个人档案：
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之后，Gemfile.lock中唯一的不同之处在于Rails核心库(没有测试宝石改变)。
回答 5
Stack Overflow用户
发布于 2012-02-22 07:50:59
您可以尝试的第一件事(根据列表您还没有)就是从测试DB中删除所有数据并“重置”您的测试环境。由于某些原因，可能您的DB充满了测试数据，序列无法工作和/或迁移尚未运行。
$ rake db:test:prepare
如果这不能解决问题，那么我会首先使我的FactoryGirl-定义和调用更一致-不是粗鲁，但我想我看到3-4不同的变化，整个代码张贴。它还增加了从跟踪中解码神秘错误消息的难度--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最佳做法-建立/创造：
document_library = FactoryGirl.create(:document_library, {
title: 'A',
visible: false
})
# or
document_library = FactoryGirl.build(:document_library)我知道您是在Rails 3.2.0中编写的，而且所有内容都是Rails 3.2.1错误，但是3.2.1与您使用的RSpec和FactoryGirls版本可能有一个问题。根据Changelog，Rails 3.2.1中的ActiveRecord模块没有发生任何更改。
Stack Overflow用户
发布于 2012-02-21 14:52:37
这可能不是根本原因，但由于您的错误暗示了FactoryGirl，我首先将所有工厂(及其创建)转换为另一个工厂(new/推荐(？)语法，即FactoryGirl.define do ...和doclib = FactoryGirl.create(:document_library ...。在运行规范时，Factory可能会有所不同(与控制台中的情况不同)。
Stack Overflow用户
发布于 2012-02-23 00:59:28
它可能是模型中过时的语法。替换
default_scope order: :title 使用
default_scope :order => :title 如果我注释掉FriendlyId模型中的DocumentLibrary行，那么上面的规范就通过了。我不知道这有什么区别
通过这种修改，default_scope order: :title成为模型的最后一行。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/9267740
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