我正在使用RSpec进行测试，当我周五下午离开工作时，我的测试正在通过。但当我回家并同步我的存储库时，我的笔记本电脑上的测试失败了。现在回到工作岗位，测试仍然失败。不要相信它的代码，因为运行rspec本身会返回一个错误，spork甚至不会启动。当我尝试启动Spork时，收到以下错误消息：
Using RSpec
Loading Spork.prefork block...
uninitialized constant ActionView::Template::Handlers::ERB::ENCODING_FLAG (NameError)
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/rspec-core-2.2.1/lib/rspec/core/backward_compatibility.rb:20:in `const_missing'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/template/handlers/erb.rb:85:in `<class:ERB>'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/template/handlers/erb.rb:70:in `<module:Handlers>'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/template/handlers/erb.rb:28:in `<class:Template>'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/template/handlers/erb.rb:27:in `<module:ActionView>'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/template/handlers/erb.rb:6:in `<top (required)>'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/template/handlers.rb:10:in `extended'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/template.rb:99:in `extend'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/template.rb:99:in `<class:Template>'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/template.rb:8:in `<module:ActionView>'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/template.rb:6:in `<top (required)>'
<internal:lib/rubygems/custom_require>:29:in `require'
<internal:lib/rubygems/custom_require>:29:in `require'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/template/resolver.rb:3:in `<top (required)>'
<internal:lib/rubygems/custom_require>:29:in `require'
<internal:lib/rubygems/custom_require>:29:in `require'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_view/testing/resolvers.rb:1:in `<top (required)>'
<internal:lib/rubygems/custom_require>:29:in `require'
<internal:lib/rubygems/custom_require>:29:in `require'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/rspec-rails-2.2.1/lib/rspec/rails/view_rendering.rb:1:in `<top (required)>'
<internal:lib/rubygems/custom_require>:29:in `require'
<internal:lib/rubygems/custom_require>:29:in `require'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/rspec-rails-2.2.1/lib/rspec/rails.rb:9:in `<top (required)>'
<internal:lib/rubygems/custom_require>:33:in `require'
<internal:lib/rubygems/custom_require>:33:in `rescue in require'
<internal:lib/rubygems/custom_require>:29:in `require'
/home/jeff/Projects/Rails/vahsfbhistory/spec/spec_helper.rb:10:in `block in <top (required)>'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/spork-0.8.4/lib/spork.rb:23:in `prefork'
/home/jeff/Projects/Rails/vahsfbhistory/spec/spec_helper.rb:5:in `<top (required)>'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/spork-0.8.4/lib/spork/test_framework.rb:138:in `load'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/spork-0.8.4/lib/spork/test_framework.rb:138:in `block (2 levels) in preload'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/spork-0.8.4/lib/spork/app_framework.rb:64:in `preload'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/spork-0.8.4/lib/spork/test_framework.rb:134:in `block in preload'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/spork-0.8.4/lib/spork.rb:67:in `exec_prefork'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/spork-0.8.4/lib/spork/test_framework.rb:120:in `preload'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/spork-0.8.4/lib/spork/run_strategy/forking.rb:25:in `preload'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/spork-0.8.4/lib/spork/runner.rb:74:in `run'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/spork-0.8.4/lib/spork/runner.rb:9:in `run'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/spork-0.8.4/bin/spork:10:in `<top (required)>'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/bin/spork:19:in `load'
/home/jeff/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/bin/spork:19:in `<main>'
任何人都知道造成这种情况的原因是什么？
答案 0 :(得分：26)
我遇到了这个问题。在spec_helper.rb中尝试替换：
require "rails"
与
require "rails/all"
在我的情况下工作。
答案 1 :(得分：11)
您需要初始化环境，将此行添加到spec_helper.rb：
require File.expand_path("../../config/environment", __FILE__)
答案 2 :(得分：0)
如果您尝试在非rails项目中使用rspec-rails，则可能会遇到此问题。在这种情况下使用require "rails/all"不是一个选项，因为它需要ActiveRecord的东西让你：
ActiveRecord::ConnectionNotEstablished: No connection pool with 'primary' found.
相反，您可以使用以下方法解决此问题：
require "action_controller/railtie"
答案 3 :(得分：-1)
如果它不是Rails应用，并且您不想包含所有Rails，请将其添加到 spec_helper.rb ：
require 'action_view'