rspec undefined method get

gistfile1.rb

require 'spec_helper'

describe ArticlesController, :type => :controller do
  describe "GET index" do
    get :index
    response.should be_successful
  end
end

# Rails 3.0.5 & Ruby 1.9.2-p180 & rspec-rails 2.5.0
#
# bundle exec rspec spec/controllers/articles_controller_spec.rb
# 
# /spec/controllers/articles_controller_spec.rb:5:in `block (2 levels) in <top (required)>': undefined method `get' for #<Class:0x00000105aab738> (NoMethodError)
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:132:in `module_eval'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:132:in `subclass'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:119:in `describe'
#   from /controllers/articles_controller_spec.rb:4:in `block in <top (required)>'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:132:in `module_eval'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:132:in `subclass'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:119:in `describe'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/extensions/object.rb:6:in `describe'
#   from /spec/controllers/articles_controller_spec.rb:3:in `<top (required)>'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/configuration.rb:386:in `load'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/configuration.rb:386:in `block in load_spec_files'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/configuration.rb:386:in `map'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/configuration.rb:386:in `load_spec_files'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/command_line.rb:18:in `run'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/runner.rb:55:in `run_in_process'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/runner.rb:46:in `run'
#   from /Users/DBA/.rvm/gems/ruby-1.9.2-p180/gems/rspec-core-2.5.1/lib/rspec/core/runner.rb:10:in `block in autorun'

OMG, one more here.