Cucumber: dependencies.rb:266:in `load_missing_constant': uninitialized constant Dispatcher

Testing RSpec
1

I’m running into a problem getting any results from Cucumber at this
point. I was able to a while ago, but I upgraded to Rails 2.2.2 and
poof! No Cucumber. Any thoughts what might be wrong?

Rails 2.2.2
Cucumber 0.1.13
Webrat aslakhellesoy-webrat (0.3.2.1)
rspec (1.1.11)
rspec-rails (1.1.11)

All are installed as gems and there are no traces in vendor/plugins.

Stack trace included in case it provides extra info…thanks!

vendor/rails/activerecord/lib/…/…/activesupport/lib/active_support/
dependencies.rb:266:in load_missing_constant': uninitialized constant Dispatcher (NameError) from /Users/sxross/rails/fly/vendor/rails/activerecord/lib/../../ activesupport/lib/active_support/dependencies.rb:453:inconst_missing’
from /Users/sxross/rails/fly/vendor/rails/activerecord/lib/…/…/
activesupport/lib/active_support/dependencies.rb:465:in const_missing' from /opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.13/bin/../lib/ cucumber/rails/world.rb:18 from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 31:ingem_original_require’
from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:
31:in require' from /Users/sxross/rails/fly/vendor/rails/activerecord/lib/../../ activesupport/lib/active_support/dependencies.rb:495:inrequire’
from /Users/sxross/rails/fly/vendor/rails/activerecord/lib/…/…/
activesupport/lib/active_support/dependencies.rb:342:in
new_constants_in' from /Users/sxross/rails/fly/vendor/rails/activerecord/lib/../../ activesupport/lib/active_support/dependencies.rb:495:inrequire’
from ./features/support/env.rb:4
from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:
31:in gem_original_require' from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 31:inrequire’
from /opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.13/bin/…/lib/
cucumber/cli.rb:230:in require_files' from /opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.13/bin/../lib/ cucumber/cli.rb:228:ineach’
from /opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.13/bin/…/lib/
cucumber/cli.rb:228:in require_files' from /opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.13/bin/../lib/ cucumber/cli.rb:152:inexecute!’
from /opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.13/bin/…/lib/
cucumber/cli.rb:13:in `execute’
from /opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.13/bin/cucumber:6

2

I had a problem just like this with “has_many_polymorphs” and it was a
bad require ( it was requiring “dispatcher” when it should be
requiring “action_controller/dispatcher”)

Maybe a “require ‘action_controller/dispatcher’” could solve your issue.

Maurício Linhares
http://alinhavado.wordpress.com/ (pt-br) | http://blog.codevader.com/
(en)

3

Hello–

On Dec 23, 2008, at 11:46 AM, Maurício Linhares wrote:

I had a problem just like this with “has_many_polymorphs” and it was a
bad require ( it was requiring “dispatcher” when it should be
requiring “action_controller/dispatcher”)

Maybe a “require ‘action_controller/dispatcher’” could solve your
issue.

Maurício Linhares
http://alinhavado.wordpress.com/ (pt-br) | http://
blog.codevader.com/ (en)

A bit stranger than that, I’m afraid. A fresh Rails project works with
cucumber right out of the box. This older one, recently upgraded to
2.2.2, has the problem with dependencies.rb. The main difference is
that the fresh project is using gem rails and the real one vendor rails.

I was hoping this would be one of those d’oh! kind of problems that
everyone knew the answer to :slight_smile:

-s

4

from
/opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.13/bin/…/lib/cucumber/rails/world.rb:18

Here’s line 18:

Dispatcher.class_eval do
def self.failsafe_response(output, status, exception = nil)
raise exception
end
end

I would do the following:

  1. Try it with gem rails on the old project
  2. If that works, then maybe removing then re-adding vendor/rails will
    do
    the trick.
  3. If that doesnt work, then maybe try messing with that file above and
    see
    what’s going wrong.

M

On Tue, Dec 23, 2008 at 2:13 PM, Maurício Linhares <

5

Also, the name isn’t Dispatcher anymore, it’s
ActionController::Dispatcher.

Maurício Linhares
http://alinhavado.wordpress.com/ (pt-br) | http://blog.codevader.com/
(en)

6

On Tue, Dec 23, 2008 at 7:04 PM, s.ross [email protected] wrote:

Hello–

A bit stranger than that, I’m afraid. A fresh Rails project works with
cucumber right out of the box. This older one, recently upgraded to 2.2.2,
has the problem with dependencies.rb. The main difference is that the fresh
project is using gem rails and the real one vendor rails.

I was hoping this would be one of those d’oh! kind of problems that everyone
knew the answer to :slight_smile:

Geez.

Same trouble here. In a blank project everything works out of the box,
on the real project (with a vendored rails 2.2.2) it just doesn’t
work. And only in testing, the application itself runs completely
fine.

Maurício Linhares
http://alinhavado.wordpress.com/ (pt-br) | http://blog.codevader.com/
(en)

7

Bingo!

module ActionController
Dispatcher.class_eval do
def self.failsafe_response(output, status, exception = nil)
raise exception
end
end
end

And it works with vendor rails. (It would break every story run
against versions < 2.2.2, but that’s another issue.)

Gem rails of the 2.2.2 variety is an unexpectedly hard upgrade. Odd
stuff shifted around, breaking stuff in random places. Well, enough
griping from me.

Thanks for getting me back to work!

–s