rspec users - Jun 2009 - any idea why spec_server gets 'cannot remove Object' error?

I am sure better minds than mine can figure this out, but I am stumped.

When I run any spec using spec_server, a get 0 failures and the command
prompt returns without issue.

If I run the same spec again, I still get 0 failures, but it concludes
with the following error:

(druby://127.0.0.1:8989)
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:603:in
`remove_const'': Cannot remove Object::ClassMethods (NameError)
        from (druby://127.0.0.1:8989)
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:603:in
`remove_constant''
        from (druby://127.0.0.1:8989)
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:603:in
`instance_eval''
        from (druby://127.0.0.1:8989)
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:603:in
`remove_constant''
        from (druby://127.0.0.1:8989)
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:450:in
`remove_unloadable_constants!''
        from (druby://127.0.0.1:8989)
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:450:in
`each''
        from (druby://127.0.0.1:8989)
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:450:in
`remove_unloadable_constants!''
        from (druby://127.0.0.1:8989)
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:236:in
`clear''
        from (druby://127.0.0.1:8989)
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/dispatcher.rb:65:in
`cleanup_application''
        from (druby://127.0.0.1:8989)
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-rails-1.2.6/lib/spec/rails/spec_server.rb:106:in
`run''
        from
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/lib/spec/runner/drb_command_line.rb:14:in
`run''
        from
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/lib/spec/runner/option_parser.rb:193:in
`parse_drb''
        from
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/lib/spec/runner/option_parser.rb:130:in
`order!''
        from
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/lib/spec/runner.rb:51:in
`options''
        from
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/lib/spec/runner/command_line.rb:6:in
`run''
        from
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/bin/spec:4
        from c:/InstantRails-2.0-win/ruby/bin/spec:19:in `load''
        from c:/InstantRails-2.0-win/ruby/bin/spec:19


running the spec a third time, most of my tests fail with the following
sample error:
TypeError in ''School can add staff_members''
can''t dup NilClass

If I kill the spec_server, restart it, the cycle begins again.

Previously, spec server ran without issue, using individual

I am running:
rspec and rspec on rails 1.2.6
Rails 2.3.2
ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32]
Windows Vista

Any thoughts would be greatly appreciated.

Tom
-- 
Posted via http://www.ruby-forum.com/.

On Tue, Jun 23, 2009 at 4:12 AM, Tom Hoen<lists at ruby-forum.com>
wrote:
> I am sure better minds than mine can figure this out, but I am stumped.
>
> When I run any spec using spec_server, a get 0 failures and the command
> prompt returns without issue.
>
> If I run the same spec again, I still get 0 failures, but it concludes
> with the following error:
>
> (druby://127.0.0.1:8989)
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:603:in
> `remove_const'': Cannot remove Object::ClassMethods (NameError)
> ? ? ? ?from (druby://127.0.0.1:8989)
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:603:in
> `remove_constant''
> ? ? ? ?from (druby://127.0.0.1:8989)
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:603:in
> `instance_eval''
> ? ? ? ?from (druby://127.0.0.1:8989)
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:603:in
> `remove_constant''
> ? ? ? ?from (druby://127.0.0.1:8989)
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:450:in
> `remove_unloadable_constants!''
> ? ? ? ?from (druby://127.0.0.1:8989)
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:450:in
> `each''
> ? ? ? ?from (druby://127.0.0.1:8989)
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:450:in
> `remove_unloadable_constants!''
> ? ? ? ?from (druby://127.0.0.1:8989)
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:236:in
> `clear''
> ? ? ? ?from (druby://127.0.0.1:8989)
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/dispatcher.rb:65:in
> `cleanup_application''
> ? ? ? ?from (druby://127.0.0.1:8989)
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-rails-1.2.6/lib/spec/rails/spec_server.rb:106:in
> `run''
> ? ? ? ?from
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/lib/spec/runner/drb_command_line.rb:14:in
> `run''
> ? ? ? ?from
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/lib/spec/runner/option_parser.rb:193:in
> `parse_drb''
> ? ? ? ?from
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/lib/spec/runner/option_parser.rb:130:in
> `order!''
> ? ? ? ?from
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/lib/spec/runner.rb:51:in
> `options''
> ? ? ? ?from
>
c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/lib/spec/runner/command_line.rb:6:in
> `run''
> ? ? ? ?from
> c:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rspec-1.2.6/bin/spec:4
> ? ? ? ?from c:/InstantRails-2.0-win/ruby/bin/spec:19:in `load''
> ? ? ? ?from c:/InstantRails-2.0-win/ruby/bin/spec:19
>
>
> running the spec a third time, most of my tests fail with the following
> sample error:
> TypeError in ''School can add staff_members''
> can''t dup NilClass
>
> If I kill the spec_server, restart it, the cycle begins again.
>
> Previously, spec server ran without issue, using individual
Previously to what? What changed?

Also - just a heads up that spec_server is deprecated in 1.2.7 and
will be removed in 1.2.8. I prefer to avoid removing things in point
releases, but spec_server has been problematic (behaving very
differently for a lot of different environments and configurations),
and Tim Harper''s new spork gem [1] serves the same purpose in a very
elegant way, so the migration path is simple.

gem install spork
cd path/to/project
spork bootstrap --rspec
# edit spec/spec_helper.rb

You may have better luck if you migrate now.

Cheers,
David

[1] http://github.com/timcharper/spork
>
> I am running:
> rspec and rspec on rails 1.2.6
> Rails 2.3.2
> ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32]
> Windows Vista
>
> Any thoughts would be greatly appreciated.
>
> Tom
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users
>

David - Thank you for responding.


> 
> Previously to what? What changed?
> 

The only changes were some additional models/controllers and specs for 
both, and I installed and used (in one of the models) open_ssl. My plan 
it to revert until I find a point at which things start to work again, 
unless someone has a better idea.

> 
> gem install spork
> cd path/to/project
> spork bootstrap --rspec
> # edit spec/spec_helper.rb
> 
Alas, I develop on Windows. So no spork. As of yet.

Thanks for your advice.
Tom
-- 
Posted via http://www.ruby-forum.com/.

Tom Hoen wrote:

In order to suss out what might be cause, i modified the remove_constant 
method in the LoadingModule class 
''\ruby\lib\ruby\gems\1.8\gems\activesupport-2.3.2\lib\active_support\dependencies.rb'',
adding in begin/rescue/end statements.

    def remove_constant(const) #:nodoc:
begin
      return false unless qualified_const_defined? const

      const = $1 if /\A::(.*)\Z/ =~ const.to_s
      names = const.to_s.split(''::'')
      if names.size == 1 # It''s under Object
        parent = Object
      else
        parent = (names[0..-2] * ''::'').constantize
      end

      log "removing constant #{const}"
      parent.instance_eval { remove_const names.last }
      return true
rescue
      log ''error when removing constant #{const}''
end
    end


This seems to allow the spec_server to operate properly, but I honestly 
don''t know what repercussions it may cause.
-- 
Posted via http://www.ruby-forum.com/.

There is no voting love on the windows feature request:

http://github.com/timcharper/spork/issues
:)

On Tue, Jun 23, 2009 at 8:38 AM, Tom Hoen <lists at ruby-forum.com> wrote:
> David - Thank you for responding.
>
>
>
> >
> > Previously to what? What changed?
> >
>
>
> The only changes were some additional models/controllers and specs for
> both, and I installed and used (in one of the models) open_ssl. My plan
> it to revert until I find a point at which things start to work again,
> unless someone has a better idea.
>
>
> >
> > gem install spork
> > cd path/to/project
> > spork bootstrap --rspec
> > # edit spec/spec_helper.rb
> >
>
> Alas, I develop on Windows. So no spork. As of yet.
>
> Thanks for your advice.
> Tom
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users
>
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Tim Harper wrote:
> There is no voting love on the windows feature request:
> 
> http://github.com/timcharper/spork/issues
> :)
I tried to vote a +1, but get this after clicking the Comment button:

   There was a problem serving the requested page.

   Now you''re wondering, "what can I do about it!?!". Well...


Have you heard of anyone that has rspec/spork/cucumber etc running under 
cygwin, colinux, andLinux, or Ulteo Virtual Desktop. Do any of them 
allow for fork?
-- 
Posted via http://www.ruby-forum.com/.

Hi,

On Thu, Jun 25, 2009 at 5:03 AM, Tom Hoen<lists at ruby-forum.com>
wrote:
> I tried to vote a +1, but get this after clicking the Comment button:
>
> ? There was a problem serving the requested page.
>
> ? Now you''re wondering, "what can I do about it!?!".
Well...
That''s lame. votes have been coming in on other issues, so I guess
that makes you and / or your timing, special :)
>
> Have you heard of anyone that has rspec/spork/cucumber etc running under
> cygwin, colinux, andLinux, or Ulteo Virtual Desktop. Do any of them
> allow for fork?
yes, yes, yes, don''t know

cygwin is slow, I would avoid it.  andLinux is a ubuntu-KDE
distribution that uses colinux.  I use andLinux at home, and it''s
simply awesome.

Tim

Tim Harper wrote:
> 
>> Have you heard of anyone that has rspec/spork/cucumber etc running
under
>> cygwin, colinux, andLinux, or Ulteo Virtual Desktop. Do any of them
>> allow for fork?
> 
> yes, yes, yes, don''t know
> 
> cygwin is slow, I would avoid it.  andLinux is a ubuntu-KDE
> distribution that uses colinux.  I use andLinux at home, and it''s
> simply awesome.
> 
> Tim
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users
> 
Hey Tim, I was trying to get Spork to work on Cygwin (Yes...Cygwin is slow,
hence the desire to get everything going on a DRb).

I installed the Spork gem and setup the files for spec/cucumber just like it
said to.  However whenever I try to use it with either one it doesn''t
work.
Spork starts up just fine, but then when I run:

script/spec spec --drb

It fails out on me.  I also tried doing it with autospec (and the proper
changes to the spec_helper file), but same result.

$ spork
Using RSpec
Preloading Rails environment
Loading Spork.prefork block...
Spork is ready and listening on 8989!
      3 [main] ruby 5696 C:\cygwin\bin\ruby.exe: *** fatal error - unable to
remap C:\cygwin\bin\cyggcrypt-11.dll to same address as parent(0x5390000)
!0x54A0000
     15 [main] ruby 3344 child_info::sync: wait failed, pid 5696, Win32
error 183
    204 [main] ruby 3344 fork: child 5696 - died waiting for dll loading,
errno 11


That''s the error I get.  The 3 [main] ruby etc. line shows up when I
attempt
to run my specs through it in another terminal.  The next two lines (15 and
204) show up about 5 minutes later if letting it idle.  Any idea on what
it''s doing or how I can solve this?

I have rspec 1.2.8
ruby 1.8.7
rails 2.3.2

Supposedly cygwin will support the forking so something tells me this is
another issue entirely.  Any ideas?
-- 
View this message in context:
http://www.nabble.com/any-idea-why-spec_server-gets-%27cannot-remove-Object%27-error--tp24162534p24629257.html
Sent from the rspec-users mailing list archive at Nabble.com.

On Thu, Jul 23, 2009 at 10:13 AM, nbenes <nathan.benes at gmail.com>
wrote:
>
>
>
> Tim Harper wrote:
> >
> >> Have you heard of anyone that has rspec/spork/cucumber etc running
under
> >> cygwin, colinux, andLinux, or Ulteo Virtual Desktop. Do any of
them
> >> allow for fork?
> >
> > yes, yes, yes, don''t know
> >
> > cygwin is slow, I would avoid it.  andLinux is a ubuntu-KDE
> > distribution that uses colinux.  I use andLinux at home, and
it''s
> > simply awesome.
> >
> > Tim
> > _______________________________________________
> > rspec-users mailing list
> > rspec-users at rubyforge.org
> > http://rubyforge.org/mailman/listinfo/rspec-users
> >
>
> Hey Tim, I was trying to get Spork to work on Cygwin (Yes...Cygwin is slow,
> hence the desire to get everything going on a DRb).
>
> I installed the Spork gem and setup the files for spec/cucumber just like
> it
> said to.  However whenever I try to use it with either one it
doesn''t work.
> Spork starts up just fine, but then when I run:
>
> script/spec spec --drb
>
> It fails out on me.  I also tried doing it with autospec (and the proper
> changes to the spec_helper file), but same result.
>
> $ spork
> Using RSpec
> Preloading Rails environment
> Loading Spork.prefork block...
> Spork is ready and listening on 8989!
>      3 [main] ruby 5696 C:\cygwin\bin\ruby.exe: *** fatal error - unable to
> remap C:\cygwin\bin\cyggcrypt-11.dll to same address as parent(0x5390000)
> !> 0x54A0000
>     15 [main] ruby 3344 child_info::sync: wait failed, pid 5696, Win32
> error 183
>    204 [main] ruby 3344 fork: child 5696 - died waiting for dll loading,
> errno 11
>
>
> That''s the error I get.  The 3 [main] ruby etc. line shows up when
I
> attempt
> to run my specs through it in another terminal.  The next two lines (15 and
> 204) show up about 5 minutes later if letting it idle.  Any idea on what
> it''s doing or how I can solve this?
>
> I have rspec 1.2.8
> ruby 1.8.7
> rails 2.3.2
>
> Supposedly cygwin will support the forking so something tells me this is
> another issue entirely.  Any ideas?

I''m really sorry.  I have no idea why it''s doing that.

I set up a friend with AndLinux on his winders machine.  He was using the E
editor, and then running spork and autospec under AndLinux, using the kde
terminal.  It was a pretty sweet setup and was fast.  You might look into
it.

Tim
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