Obtención de un error constante no inicializado con RSpec. No tengo idea de qué lo está causando

Question

Estoy usando RSpec para las pruebas y cuando salí del trabajo el viernes por la tarde, mis pruebas estaban pasando. Pero cuando fui a casa y sincronicé mi repositorio, las pruebas fallaron en mi computadora portátil. Ahora, de vuelta al trabajo, las pruebas aún están fallando. No crea que es mi código ya que ejecutar rspec por sí mismo devuelve un error y spork ni siquiera se iniciará. Cuando trato de iniciar Spork, aparece el siguiente mensaje de error:

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>' 

¿Alguien sabe qué podría estar causando esto?

Answer 1

Me encontré con este problema. En el spec_helper.rb intente reemplazar:

require "rails" 

con

require "rails/all" 

funcionaba en mi situación.

Answer 2

Si no es una aplicación Rails y usted no quiere incluir todos los carriles, añadir esto a su spec_helper.rb:

require 'action_view' 

Answer 3

Es necesario inicializar el medio ambiente, añadir esta línea a spec_helper.rb :

require File.expand_path("../../config/environment", __FILE__) 

Answer 4

Puede encontrar este problema si usted está tratando de utilizar rspec-rails en un proyecto no raíles. En ese caso, el uso de require "rails/all" no es una opción, ya que había cosas requieren ActiveRecord dejándole con:

ActiveRecord::ConnectionNotEstablished: No connection pool with 'primary' found.

su lugar se puede solucionar este problema con:

require "action_controller/railtie"