Smallish updates.

Gemfile.lock

@@ -4,7 +4,7 @@ PATH
     devise (1.2.rc)
       bcrypt-ruby (~> 2.1.2)
       orm_adapter (~> 0.0.2)
-      warden (~> 1.0.0)
+      warden (~> 1.0.2)
 
 GEM
   remote: http://rubygems.org/
@@ -158,5 +158,5 @@ DEPENDENCIES
   rails
   ruby-debug (>= 0.10.3)
   sqlite3-ruby
-  warden (~> 1.0.0)
+  warden (~> 1.0.2)
   webrat (= 0.7.1)

lib/devise/controllers/helpers.rb

@@ -121,7 +121,8 @@ module Devise
       #   sign_out :user     # sign_out(scope)
       #   sign_out @user     # sign_out(resource)
       #
-      def sign_out(resource_or_scope)
+      def sign_out(resource_or_scope=nil)
+        return sign_out_all_scopes unless resource_or_scope
         scope = Devise::Mapping.find_scope!(resource_or_scope)
         warden.user(scope) # Without loading user here, before_logout hook is not called
         warden.raw_session.inspect # Without this inspect here. The session does not clear.
@@ -214,11 +215,7 @@ module Devise
       # after_sign_out_path_for.
       def sign_out_and_redirect(resource_or_scope)
         scope = Devise::Mapping.find_scope!(resource_or_scope)
-        if Devise.sign_out_all_scopes
-          sign_out_all_scopes
-        else
-          sign_out(scope)
-        end
+        Devise.sign_out_all_scopes ? sign_out : sign_out(scope)
         redirect_for_sign_out(scope)
       end
 

lib/devise/controllers/internal_helpers.rb

@@ -54,7 +54,7 @@ module Devise
 
       # Checks whether it's a devise mapped resource or not.
       def is_devise_resource? #:nodoc:
-        unknown_action!("Could not find devise mapping for #{request.fullpath}.") unless devise_mapping
+        unknown_action!("Could not find devise mapping for path #{request.fullpath.inspect}") unless devise_mapping
       end
 
       def unknown_action!(msg)

lib/devise/mapping.rb

@@ -37,12 +37,12 @@ module Devise
         Devise.mappings.each_value { |m| return m.name if duck.is_a?(m.to) }
       end
 
-      raise "Could not find a valid mapping for #{duck}"
+      raise "Could not find a valid mapping for #{duck.inspect}"
     end
 
     def self.find_by_path!(path, path_type=:fullpath)
       Devise.mappings.each_value { |m| return m if path.include?(m.send(path_type)) }
-      raise "Could not find a valid mapping for path #{path}"
+      raise "Could not find a valid mapping for path #{path.inspect}"
     end
 
     def initialize(name, options) #:nodoc:

lib/devise/rails/warden_compat.rb

@@ -3,6 +3,7 @@ module Warden::Mixins::Common
     @request ||= ActionDispatch::Request.new(env)
   end
 
+  # This is called internally by Warden on logout
   def reset_session!
     request.reset_session
   end

test/controllers/helpers_test.rb

@@ -119,6 +119,11 @@ class ControllerAuthenticableTest < ActionController::TestCase
     @controller.sign_out(User.new)
   end
 
+  test 'sign out without args proxy to sign out all scopes' do
+    @mock_warden.expects(:logout).with().returns(true)
+    @controller.sign_out
+  end
+
   test 'sign out everybody proxy to logout on warden' do
     @mock_warden.expects(:logout).with().returns(true)
     @controller.sign_out_all_scopes