Setting encodings and fixing arity so the tests actually run

lib/paperclip/attachment.rb

+# encoding: utf-8
 module Paperclip
   # The Attachment class manages the files for a given attachment. It saves
   # when the model saves, deletes when the model is destroyed, and processes

test/attachment_test.rb

+# encoding: utf-8
 require 'test/helper'
 
 class Dummy

test/helper.rb

@@ -40,7 +40,7 @@ def reset_class class_name
 end
 
 def reset_table table_name, &block
-  block ||= lambda{ true }
+  block ||= lambda { |table| true }
   ActiveRecord::Base.connection.create_table :dummies, {:force => true}, &block
 end