Fix the build on Rails 3.2

lib/devise/parameter_sanitizer.rb

@@ -20,16 +20,18 @@ module Devise
     def sanitize(kind)
       if block = @blocks[kind]
         block.call(default_params)
-      elsif respond_to?(kind, true)
-        send(kind)
       else
-        raise NotImplementedError, "Devise doesn't know how to sanitize parameters for #{kind}"
+        default_sanitize(kind)
       end
     end
 
     private
 
     def default_for(kind)
+      raise ArgumentError, "a block is expected in Devise base sanitizer"
+    end
+
+    def default_sanitize(kind)
       default_params
     end
 
@@ -64,6 +66,14 @@ module Devise
       @permitted[kind] || raise("No sanitizer provided for #{kind}")
     end
 
+    def default_sanitize(kind)
+      if respond_to?(kind, true)
+        send(kind)
+      else
+        raise NotImplementedError, "Devise doesn't know how to sanitize parameters for #{kind}"
+      end
+    end
+
     def attributes_for(kind)
       case kind
       when :sign_in

test/parameter_sanitizer_test.rb

@@ -3,18 +3,11 @@ require 'devise/parameter_sanitizer'
 
 class BaseSanitizerTest < ActiveSupport::TestCase
   def sanitizer(params)
-    params = ActionController::Parameters.new(params)
     Devise::BaseSanitizer.new(User, :user, params)
   end
 
   test 'returns chosen params' do
     sanitizer = sanitizer(user: { "email" => "jose" })
-    assert_equal({ "email" => "jose" }, sanitizer.for(:sign_in))
-  end
-
-  test 'allow custom blocks' do
-    sanitizer = sanitizer(user: { "email" => "jose", "password" => "invalid" })
-    sanitizer.for(:sign_in) { |user| user.permit(:email) }
     assert_equal({ "email" => "jose" }, sanitizer.sanitize(:sign_in))
   end
 end