rspec users - Nov 2007 - Named routes raising nil.rewrite error

Hi all.  I''m having a little problem with named routes.  I have the  
following named route:

   map.with_options :controller => ''snippets'' do |map|
     map.snippets         
''faq/'', :action                                   =>
''index''
     map.new_snippet     ''faq/ 
new'', :action                                =>
''new''
     map.snippet_text    ''faq/ 
get/:id'', :action                            =>
''get_snippet_text''
     map.set_snippet     ''faq/ 
set/:id'', :action                            =>
''set_snippet_text''
     map.snippet          
''faq/:id'', :action                                =>
''show''
     map.snippet_version ''faq/:id/version/:version'', :action
=> ''version''
     map.revert_snippet  ''faq/:id/version/:version/revert'',
:action
=> ''revert''
   end

When trying to write the following spec (a regression), I get the error:

=======================================
describe SnippetsController, "routes" do
   it "should route the snippet_version_url to the version action" do
     snippet_version_url(:id => "1", :version =>
"41").should == "/foo"
   end
end

=======================================
escher: ./script/spec spec/controllers/regressions/ 
2007_11_07_snippets_route_spec.rb
F

1)
NoMethodError in ''SnippetsController routes should route the  
snippet_version_url to the version action''
You have a nil object when you didn''t expect it!
The error occurred while evaluating nil.rewrite
(eval):19:in `snippet_version_url''
./spec/controllers/regressions/2007_11_07_snippets_route_spec.rb:277:
./script/spec:4:

Finished in 0.029341 seconds

1 example, 1 failure


=======================================
Should I be using route_for here?  I''ve noticed that the following  
spec fails:

=======================================
describe SnippetsController, "routes" do
   it "should not raise an error with the snippet_version_url route"
do
     lambda {
       snippet_version_url
     }.should_not raise_error
   end
end

escher: ./script/spec spec/controllers/regressions/ 
2007_11_07_snippets_route_spec.rb
F

1)
''SnippetsController routes should not raise an error with the  
snippet_version_url route'' FAILED
expected no Exception, got #<NoMethodError: You have a nil object  
when you didn''t expect it!
The error occurred while evaluating nil.rewrite>
./spec/controllers/regressions/2007_11_07_snippets_route_spec.rb:281:
./script/spec:4:

Finished in 0.029503 seconds

1 example, 1 failure

=======================================
Thanks for any help,

Scott

PS: Running on Rspec edge, rails 1.2.3