ruby-on-rails - 当类位于子目录中并被子类化时，Rspec 因 load_missing_constant 而失败

Question

由于我怀疑与自动加载有关，我在运行一堆 RSpec 测试时遇到了一些麻烦。这是错误:

/usr/share/ruby-rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.1.4/lib/active_support/dependencies.rb:490:in `load_missing_constant': Expected /var/lib/jenkins/.../portfolios/base_manage_controller.rb to define Portfolios::BaseManageController (LoadError)
from /usr/share/ruby-rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.1.4/lib/active_support/dependencies.rb:181:in `block in const_missing'
from /usr/share/ruby-rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.1.4/lib/active_support/dependencies.rb:179:in `each'
from /usr/share/ruby-rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.1.4/lib/active_support/dependencies.rb:179:in `const_missing'
from /usr/share/ruby-rvm/gems/ruby-1.9.2-p320@global/gems/rake-0.9.2.2/lib/rake/ext/module.rb:36:in `const_missing'
from /var/lib/jenkins/jobs/.../app/controllers/portfolios/customize_controller.rb:1:in `<top (required)>'

这是文件的标题:

class Portfolios::BaseManageController < ApplicationController

它住在 app/controllers/portfolios/base_manage_controller.rb
及其子类:

class Portfolios::CustomizeController < Portfolios::BaseManageController

它住在 app/controllers/portfolios/customize_controller.rb
最后是一堆自动加载:

config.autoload_paths += Dir["#{config.root}/lib",  "#{config.root}/lib/**/"]
config.autoload_paths += %W(#{config.root}/app/models/statistics)

#Any test/dev specific load paths
if not Rails.env.production?
  config.autoload_paths += %W(#{config.root}/spec/support)
  config.autoload_paths += %W(#{config.root}/spec/support/builders)
  config.autoload_paths += %W(#{config.root}/spec/support/modules)
  config.autoload_paths += %W(#{config.root}/spec/support/utils)
end

任何帮助将非常感激!

Answer 1

当定义类时引发异常时，有时会发生此错误。在这种情况下，尝试定义在 base_manage_controller.rb 中找到的类时可能会发生运行时错误。

要验证是否是这种情况，请尝试从 base_manage_controller.rb 中删除所有内容。 ，除了类声明:

class Portfolios::BaseManageController < ApplicationController
end

它应该导致规范运行，但失败。

要查找运行时错误，请将所有内容放回类中，然后从 script/console 加载它。 , 调用 Portfolios::BaseManageController .这将尝试动态加载类，并引发阻止定义类的异常。